Move pub file from newton to common

Change-Id: Ib7160619b6fd0b1bada0da685bf4cfaa95a15fff
Issue-ID: MULTICLOUD-138
Signed-off-by: Huang Haibin <haibin.huang@intel.com>

10 files changed, 2969 insertions, 0 deletions

diff --git a/share/common/utils/__init__.py b/share/common/utils/__init__.py
new file mode 100644
index 00000000..387c54c2
--- /dev/null
+++ b/share/common/utils/__init__.py
@@ -0,0 +1,10 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
diff --git a/share/common/utils/enumutil.py b/share/common/utils/enumutil.py
new file mode 100644
index 00000000..156f0df4
--- /dev/null
+++ b/share/common/utils/enumutil.py
@@ -0,0 +1,14 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+
+def enum(**enums):
+    return type('Enum', (), enums)
diff --git a/share/common/utils/fileutil.py b/share/common/utils/fileutil.py
new file mode 100644
index 00000000..5a1624b0
--- /dev/null
+++ b/share/common/utils/fileutil.py
@@ -0,0 +1,48 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+import os
+import shutil
+import logging
+import traceback
+from six.moves import urllib
+
+logger = logging.getLogger(__name__)
+
+
+def make_dirs(path):
+    if not os.path.exists(path):
+        os.makedirs(path, 0777)
+
+
+def delete_dirs(path):
+    try:
+        if os.path.exists(path):
+            shutil.rmtree(path)
+    except Exception as e:
+        logger.error(traceback.format_exc())
+        logger.error("Failed to delete %s:%s", path, e.message)
+
+
+def download_file_from_http(url, local_dir, file_name):
+    local_file_name = os.path.join(local_dir, file_name)
+    is_download_ok = False
+    try:
+        make_dirs(local_dir)
+        req = urllib.request.urlopen(url)
+        save_file = open(local_file_name, 'wb')
+        save_file.write(req.read())
+        save_file.close()
+        req.close()
+        is_download_ok = True
+    except:
+        logger.error(traceback.format_exc())
+        logger.error("Failed to download %s to %s.", url, local_file_name)
+    return is_download_ok, local_file_name
diff --git a/share/common/utils/idutil.py b/share/common/utils/idutil.py
new file mode 100644
index 00000000..a99e7de3
--- /dev/null
+++ b/share/common/utils/idutil.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+from redisco import containers as cont
+
+
+def get_auto_id(id_type, id_group="auto_id_hash"):
+    auto_id_hash = cont.Hash(id_group)
+    auto_id_hash.hincrby(id_type, 1)
+    return auto_id_hash.hget(id_type)
diff --git a/share/common/utils/restcall.py b/share/common/utils/restcall.py
new file mode 100644
index 00000000..38bcf39c
--- /dev/null
+++ b/share/common/utils/restcall.py
@@ -0,0 +1,146 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import six
+import base64
+
+import codecs
+import json
+import traceback
+import sys
+
+import logging
+from six.moves import urllib
+import httplib2
+import uuid
+
+from rest_framework import status
+from common import config
+
+rest_no_auth, rest_oneway_auth, rest_bothway_auth = 0, 1, 2
+HTTP_200_OK, HTTP_201_CREATED = '200', '201'
+HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED = '204', '202'
+status_ok_list = [HTTP_200_OK, HTTP_201_CREATED,
+                  HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED]
+HTTP_404_NOTFOUND, HTTP_403_FORBIDDEN = '404', '403'
+HTTP_401_UNAUTHORIZED, HTTP_400_BADREQUEST = '401', '400'
+
+MAX_RETRY_TIME = 3
+
+logger = logging.getLogger(__name__)
+
+
+def _call_req(base_url, user, passwd, auth_type,
+             resource, method, extra_headers='', content=''):
+    callid = str(uuid.uuid1())
+    ret = None
+    resp_status = None
+    try:
+        full_url = _combine_url(base_url, resource)
+        headers = {
+            'content-type': 'application/json',
+            'accept': 'application/json'
+        }
+
+        if extra_headers:
+            headers.update(extra_headers)
+#        if user:
+#            headers['Authorization'] = \
+#                'Basic ' + str(codecs.encode('%s:%s' % (user, passwd), "ascii"))
+
+        if user:
+            tmpauthsource = '%s:%s' % (user, passwd)
+            if six.PY3:
+                tmpauthsource = tmpauthsource.encode('utf-8')
+            headers['Authorization'] = 'Basic ' + \
+                base64.b64encode(tmpauthsource).decode('utf-8')
+
+        ca_certs = None
+        for retry_times in range(MAX_RETRY_TIME):
+            http = httplib2.Http(
+                ca_certs=ca_certs,
+                disable_ssl_certificate_validation=(auth_type == rest_no_auth))
+            http.follow_all_redirects = True
+            try:
+                resp, resp_content = http.request(full_url,
+                                                  method=method.upper(),
+                                                  body=content,
+                                                  headers=headers)
+                resp_status, resp_body = \
+                    resp['status'], codecs.decode(
+                        resp_content, 'UTF-8')
+                if resp_status in status_ok_list:
+                    ret = [0, resp_body, resp_status]
+                else:
+                    ret = [1, resp_body, resp_status]
+                break
+            except Exception as ex:
+                if 'httplib.ResponseNotReady' in str(sys.exc_info()):
+                    logger.debug("retry_times=%d", retry_times)
+                    logger.error(traceback.format_exc())
+                    ret = [1, "Unable to connect to %s" % full_url, resp_status]
+                    continue
+                raise ex
+    except urllib.error.URLError as err:
+        ret = [2, str(err), resp_status]
+    except Exception:
+        logger.error(traceback.format_exc())
+        logger.error("[%s]ret=%s" % (callid, str(sys.exc_info())))
+        if not resp_status:
+            resp_status = status.HTTP_500_INTERNAL_SERVER_ERROR
+        ret = [3, str(sys.exc_info()), resp_status]
+    except:
+        logger.error(traceback.format_exc())
+        ret = [4, str(sys.exc_info()), resp_status]
+    return ret
+
+
+def req_by_msb(resource, method, content=''):
+    base_url = "http://%s:%s/" % (config.MSB_SERVICE_ADDR, config.MSB_SERVICE_PORT)
+    return _call_req(base_url, "", "", rest_no_auth,
+                    resource, method, "", content)
+
+
+def req_to_vim(base_url, resource, method, extra_headers='', content=''):
+    return _call_req(base_url, "", "", rest_no_auth,
+                    resource, method, extra_headers, content)
+
+
+def req_to_aai(resource, method, content='', appid=config.MULTICLOUD_APP_ID):
+    tmp_trasaction_id = '9003' #str(uuid.uuid1())
+    headers = {
+        'X-FromAppId': appid,
+        'X-TransactionId': tmp_trasaction_id,
+        'content-type': 'application/json',
+        'accept': 'application/json'
+    }
+
+    logger.debug("req_to_aai--%s::> %s, %s" %
+                 (tmp_trasaction_id, method, _combine_url(config.AAI_BASE_URL,resource)))
+    return _call_req(config.AAI_BASE_URL, config.AAI_USERNAME, config.AAI_PASSWORD, rest_no_auth,
+                    resource, method, content=json.dumps(content), extra_headers=headers)
+
+
+def _combine_url(base_url, resource):
+    full_url = None
+
+    if not resource:
+        return base_url
+
+    if base_url.endswith('/') and resource.startswith('/'):
+        full_url = base_url[:-1] + resource
+    elif base_url.endswith('/') and not resource.startswith('/'):
+        full_url = base_url + resource
+    elif not base_url.endswith('/') and resource.startswith('/'):
+        full_url = base_url + resource
+    else:
+        full_url = base_url + '/' + resource
+    return full_url
diff --git a/share/common/utils/share_lock.py b/share/common/utils/share_lock.py
new file mode 100644
index 00000000..7ffc7b47
--- /dev/null
+++ b/share/common/utils/share_lock.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import time
+
+import redis
+
+from common.config.config import REDIS_HOST, REDIS_PORT, REDIS_PASSWD
+
+
+class SharedLock:
+    def __init__(self, lock_key, host=REDIS_HOST, port=REDIS_PORT, password=REDIS_PASSWD, db=9, lock_timeout=5 * 60):
+        self.lock_key = lock_key
+        self.lock_timeout = lock_timeout
+        self.redis = redis.Redis(host=host, port=port, db=db, password=password)
+        self.acquire_time = -1
+
+    def acquire(self):
+        begin = now = int(time.time())
+        while (now - begin) < self.lock_timeout:
+
+            result = self.redis.setnx(self.lock_key, now + self.lock_timeout + 1)
+            if result == 1 or result is True:
+                self.acquire_time = now
+                return True
+
+            current_lock_timestamp = self.redis.get(self.lock_key)
+            if not current_lock_timestamp:
+                time.sleep(1)
+                continue
+
+            current_lock_timestamp = int(current_lock_timestamp)
+
+            if now > current_lock_timestamp:
+                next_lock_timestamp = self.redis.getset(self.lock_key, now + self.lock_timeout + 1)
+                if not next_lock_timestamp:
+                    time.sleep(1)
+                    continue
+                next_lock_timestamp = int(next_lock_timestamp)
+
+                if next_lock_timestamp == current_lock_timestamp:
+                    self.acquire_time = now
+                    return True
+            else:
+                time.sleep(1)
+                continue
+        return False
+
+    def release(self):
+        now = int(time.time())
+        if now > self.acquire_time + self.lock_timeout:
+            # key expired, do nothing and let other clients handle it
+            return
+        self.acquire_time = None
+        self.redis.delete(self.lock_key)
+
+
+def do_biz_with_share_lock(lock_name, callback):
+    lock = SharedLock(lock_name)
+    try:
+        if not lock.acquire():
+            raise Exception(lock_name + " timeout")
+        callback()
+    except Exception as e:
+        raise e
+    finally:
+        lock.release()
diff --git a/share/common/utils/syscomm.py b/share/common/utils/syscomm.py
new file mode 100644
index 00000000..6e20ab1e
--- /dev/null
+++ b/share/common/utils/syscomm.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import inspect
+
+
+def fun_name():
+    return inspect.stack()[1][3]
diff --git a/share/common/utils/timeutil.py b/share/common/utils/timeutil.py
new file mode 100644
index 00000000..1358355e
--- /dev/null
+++ b/share/common/utils/timeutil.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import datetime
+
+
+def now_time(fmt="%Y-%m-%d %H:%M:%S"):
+    return datetime.datetime.now().strftime(fmt)
diff --git a/share/common/utils/toscautil.py b/share/common/utils/toscautil.py
new file mode 100644
index 00000000..7be71fd8
--- /dev/null
+++ b/share/common/utils/toscautil.py
@@ -0,0 +1,2603 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+import json
+
+def safe_get(key_val, key):
+    return key_val[key] if key in key_val else ""
+
+
+def find_node_name(node_id, node_list):
+    for node in node_list:
+        if node['id'] == node_id:
+            return node['template_name']
+    raise Exception('can not find node(%s).' % node_id)
+
+
+def find_node_type(node_id, node_list):
+    for node in node_list:
+        if node['id'] == node_id:
+            return node['type_name']
+    raise Exception('can not find node(%s).' % node_id)
+
+
+def find_related_node(node_id, src_json_model, requirement_name):
+    related_nodes = []
+    for model_tpl in safe_get(src_json_model, "node_templates"):
+        for rt in safe_get(model_tpl, 'requirement_templates'):
+            if safe_get(rt, 'name') == requirement_name and \
+                safe_get(rt, 'target_node_template_name') == node_id:
+                related_nodes.append(model_tpl['name'])
+    return related_nodes
+
+
+def convert_props(src_node, dest_node):
+    if 'properties' in src_node and src_node['properties']:
+        for prop_name, prop_info in src_node['properties'].items():
+            if 'value' in prop_info:
+                dest_node['properties'][prop_name] = prop_info['value']   
+
+
+def convert_metadata(src_json):
+    return src_json['metadata'] if 'metadata' in src_json else {}
+
+
+def convert_inputs(src_json):
+    inputs = {}
+    if 'inputs' in src_json:
+        src_inputs = src_json['inputs']
+        for param_name, param_info in src_inputs.items():
+            input_param = {}
+            if 'type_name' in param_info:
+                input_param['type'] = param_info['type_name']
+            if 'description' in param_info:
+                input_param['description'] = param_info['description']
+            if 'value' in param_info:
+                input_param['value'] = param_info['value']
+            inputs[param_name] = input_param
+    return inputs
+
+
+def convert_vnf_node(src_node, src_json_model):
+    vnf_node = {'type': src_node['type_name'], 'vnf_id': src_node['template_name'],
+        'description': '', 'properties': {}, 'dependencies': [], 'networks': []}
+    convert_props(src_node, vnf_node)
+    for model_tpl in safe_get(src_json_model, "node_templates"):
+        if model_tpl['name'] != vnf_node['vnf_id']:
+            continue
+        vnf_node['dependencies'] = [{
+            'key_name': requirement['name'],
+            'vl_id': requirement['target_node_template_name']} for \
+            requirement in safe_get(model_tpl, 'requirement_templates') if \
+            safe_get(requirement, 'target_capability_name') == 'virtual_linkable']
+        vnf_node['networks'] = [requirement['target_node_template_name'] for \
+            requirement in safe_get(model_tpl, 'requirement_templates') if \
+            safe_get(requirement, 'name') == 'dependency']
+    return vnf_node
+
+
+def convert_pnf_node(src_node, src_json_model):
+    pnf_node = {'pnf_id': src_node['template_name'], 'description': '', 'properties': {}}
+    convert_props(src_node, pnf_node)
+    pnf_node['cps'] = find_related_node(src_node['id'], src_json_model, 'virtualbinding')
+    return pnf_node
+
+
+def convert_vl_node(src_node, src_node_list):
+    vl_node = {'vl_id': src_node['template_name'], 'description': '', 'properties': {}}
+    convert_props(src_node, vl_node)
+    vl_node['route_id'] = ''
+    for relation in safe_get(src_node, 'relationships'):
+        if safe_get(relation, 'type_name').endswith('.VirtualLinksTo'):
+            vl_node['route_id'] = find_node_name(relation['target_node_id'], src_node_list)
+            break
+    vl_node['route_external'] = (src_node['type_name'].find('.RouteExternalVL') > 0)
+    return vl_node
+
+
+def convert_cp_node(src_node, src_node_list, model_type='NSD'):
+    cp_node = {'cp_id': src_node['template_name'], 'description': '', 'properties': {}}
+    convert_props(src_node, cp_node)
+    src_relationships = src_node['relationships']
+    for relation in src_relationships:
+        if safe_get(relation, 'name') == 'virtualLink':
+            cp_node['vl_id'] = find_node_name(relation['target_node_id'], src_node_list)
+        elif safe_get(relation, 'name') == 'virtualbinding':
+            node_key = 'pnf_id' if model_type == 'NSD' else 'vdu_id'
+            cp_node[node_key] = find_node_name(relation['target_node_id'], src_node_list)
+    return cp_node
+
+
+def convert_router_node(src_node, src_node_list):
+    router_node = {'router_id': src_node['template_name'], 'description': '', 'properties': {}}
+    convert_props(src_node, router_node)
+    for relation in src_node['relationships']:
+        if safe_get(relation, 'name') != 'external_virtual_link':
+            continue
+        router_node['external_vl_id'] = find_node_name(relation['target_node_id'], src_node_list)
+        router_node['external_ip_addresses'] = []
+        if 'properties' not in relation:
+            continue
+        for prop_name, prop_info in relation['properties'].items():
+            if prop_name == 'router_ip_address':
+                router_node['external_ip_addresses'].append(prop_info['value'])
+        break
+    return router_node
+
+
+def convert_fp_node(src_node, src_node_list, src_json_model):
+    fp_node = {'fp_id': src_node['template_name'], 'description': '', 
+        'properties': {}, 'forwarder_list': []}
+    convert_props(src_node, fp_node)
+    for relation in safe_get(src_node, 'relationships'):
+        if safe_get(relation, 'name') != 'forwarder':
+            continue
+        forwarder_point = {'type': 'vnf'}
+        target_node_type = find_node_type(relation['target_node_id'], src_node_list).upper()
+        if target_node_type.find('.CP.') >= 0 or target_node_type.endswith('.CP'):
+            forwarder_point['type'] = 'cp'
+        forwarder_point['node_name'] = find_node_name(relation['target_node_id'], src_node_list)
+        forwarder_point['capability'] = ''
+        if forwarder_point['type'] == 'vnf':
+            for node_tpl in src_json_model["node_templates"]:
+                if fp_node['fp_id'] != node_tpl["name"]:
+                    continue
+                for r_tpl in safe_get(node_tpl, "requirement_templates"):
+                    if safe_get(r_tpl, "target_node_template_name") != forwarder_point['node_name']:
+                        continue
+                    forwarder_point['capability'] = safe_get(r_tpl, "target_capability_name")
+                    break
+                break
+        fp_node['forwarder_list'].append(forwarder_point)
+    return fp_node
+
+
+def convert_vnffg_group(src_group, src_group_list, src_node_list):
+    vnffg = {'vnffg_id': src_group['template_name'], 'description': '', 
+        'properties': {}, 'members': []}
+    convert_props(src_group, vnffg)
+    for member_node_id in src_group['member_node_ids']:
+        vnffg['members'].append(find_node_name(member_node_id, src_node_list))
+    return vnffg
+
+
+def convert_imagefile_node(src_node, src_node_list):
+    image_node = {'image_file_id': src_node['template_name'], 'description': '', 
+        'properties': {}}
+    convert_props(src_node, image_node)
+    return image_node
+
+
+def convert_localstorage_node(src_node, src_node_list):
+    localstorage_node = {'local_storage_id': src_node['template_name'], 'description': '', 
+        'properties': {}}
+    convert_props(src_node, localstorage_node)
+    return localstorage_node
+
+
+def convert_vdu_node(src_node, src_node_list, src_json_model):
+    vdu_node = {'vdu_id': src_node['template_name'], 'description': '', 'properties': {},
+        'image_file': '', 'local_storages': [], 'dependencies': [], 'nfv_compute': {},
+        'vls': [], 'artifacts': []}
+    convert_props(src_node, vdu_node)
+
+    for relation in src_node['relationships']:
+        r_id, r_name = safe_get(relation, 'target_node_id'), safe_get(relation, 'name')
+        if r_name == 'guest_os':
+            vdu_node['image_file'] = find_node_name(r_id, src_node_list)
+        elif r_name == 'local_storage':
+            vdu_node['local_storages'].append(find_node_name(r_id, src_node_list))
+        elif r_name.endswith('.AttachesTo'):
+            nt = find_node_type(r_id, src_node_list)
+            if nt.endswith('.BlockStorage.Local') or nt.endswith('.LocalStorage'):
+                vdu_node['local_storages'].append(find_node_name(r_id, src_node_list))
+
+    for capability in src_node['capabilities']:
+        if capability['name'] != 'nfv_compute':
+            continue
+        for prop_name, prop_info in capability['properties'].items():
+            if 'value' in prop_info:
+                vdu_node['nfv_compute'][prop_name] = prop_info['value']
+
+    vdu_node['cps'] = find_related_node(src_node['id'], src_json_model, 'virtualbinding')
+
+    for cp_node in vdu_node['cps']:
+        for src_cp_node in src_node_list:
+            if src_cp_node['template_name'] != cp_node:
+                continue
+            for relation in safe_get(src_cp_node, 'relationships'):
+                if relation['name'] != 'virtualLink':
+                    continue
+                vl_node_name = find_node_name(relation['target_node_id'], src_node_list)
+                if vl_node_name not in vdu_node['vls']:
+                    vdu_node['vls'].append(vl_node_name)
+
+    for item in safe_get(src_node, 'artifacts'):
+        artifact = {'artifact_name': item['name'], 'type': item['type_name'], 
+            'file': item['source_path']}
+        vdu_node['artifacts'].append(artifact)
+
+    return vdu_node
+
+
+def convert_exposed_node(src_json, src_nodes, exposed):
+    for item in safe_get(safe_get(src_json, 'substitution'), 'requirements'):
+        exposed['external_cps'].append({'key_name': item['mapped_name'],
+            "cp_id": find_node_name(item['node_id'], src_nodes)})
+    for item in safe_get(safe_get(src_json, 'substitution'), 'capabilities'):
+        exposed['forward_cps'].append({'key_name': item['mapped_name'],
+            "cp_id": find_node_name(item['node_id'], src_nodes)})
+
+
+def convert_vnffgs(src_json_inst, src_nodes):
+    vnffgs = []
+    src_groups = safe_get(src_json_inst, 'groups')
+    for group in src_groups:
+        type_name = group['type_name'].upper()
+        if type_name.find('.VNFFG.') >= 0 or type_name.endswith('.VNFFG'):
+            vnffgs.append(convert_vnffg_group(group, src_groups, src_nodes))
+    return vnffgs
+
+
+def convert_common(src_json, target_json):
+    if isinstance(src_json, (unicode, str)):
+        src_json_dict = json.loads(src_json)
+    else:
+        src_json_dict = src_json
+    src_json_inst = src_json_dict["instance"]
+    src_json_model = src_json_dict["model"] if "model" in src_json_dict else {}
+
+    target_json['metadata'] = convert_metadata(src_json_inst)
+    target_json['inputs'] = convert_inputs(src_json_inst)
+    target_json['vls'] = []
+    target_json['cps'] = []
+    target_json['routers'] = []
+
+    return src_json_inst, src_json_model
+
+
+def convert_nsd_model(src_json):
+    target_json = {'vnfs': [], 'pnfs': [], 'fps': []}
+    src_json_inst, src_json_model = convert_common(src_json, target_json)
+   
+    src_nodes = src_json_inst['nodes']
+    for node in src_nodes:
+        type_name = node['type_name']
+        if type_name.find('.VNF.') > 0 or type_name.endswith('.VNF'):
+            target_json['vnfs'].append(convert_vnf_node(node, src_json_model))
+        elif type_name.find('.PNF.') > 0 or type_name.endswith('.PNF'):
+            target_json['pnfs'].append(convert_pnf_node(node, src_json_model))
+        elif type_name.find('.VL.') > 0 or type_name.endswith('.VL') \
+                or node['type_name'].find('.RouteExternalVL') > 0:
+            target_json['vls'].append(convert_vl_node(node, src_nodes))
+        elif type_name.find('.CP.') > 0 or type_name.endswith('.CP'):
+            target_json['cps'].append(convert_cp_node(node, src_nodes))
+        elif type_name.find('.FP.') > 0 or type_name.endswith('.FP'):
+            target_json['fps'].append(convert_fp_node(node, src_nodes, src_json_model))
+        elif type_name.endswith('.Router'):
+            target_json['routers'].append(convert_router_node(node, src_nodes))
+
+    target_json['vnffgs'] = convert_vnffgs(src_json_inst, src_nodes)
+
+    target_json['ns_exposed'] = {'external_cps': [], 'forward_cps': []}
+    convert_exposed_node(src_json_inst, src_nodes, target_json['ns_exposed'])
+    return json.dumps(target_json)
+
+
+def convert_vnfd_model(src_json):
+    target_json = {'image_files': [], 'local_storages': [], 'vdus': []}
+    src_json_inst, src_json_model = convert_common(src_json, target_json)
+
+    src_nodes = src_json_inst['nodes']
+    for node in src_nodes:
+        type_name = node['type_name']
+        if type_name.endswith('.ImageFile'):
+            target_json['image_files'].append(convert_imagefile_node(node, src_nodes))
+        elif type_name.endswith('.BlockStorage.Local') or type_name.endswith('.LocalStorage'):
+            target_json['local_storages'].append(convert_localstorage_node(node, src_nodes))
+        elif type_name.find('.VDU.') > 0 or type_name.endswith('.VDU'):
+            target_json['vdus'].append(convert_vdu_node(node, src_nodes, src_json_model))
+        elif type_name.find('.VL.') > 0 or type_name.endswith('.VL') \
+                or node['type_name'].find('.RouteExternalVL') > 0:
+            target_json['vls'].append(convert_vl_node(node, src_nodes))
+        elif type_name.find('.CP.') > 0 or type_name.endswith('.CP'):
+            target_json['cps'].append(convert_cp_node(node, src_nodes, 'VNFD'))
+        elif type_name.endswith('.Router'):
+            target_json['routers'].append(convert_router_node(node, src_nodes))
+    
+    target_json['vnf_exposed'] = {'external_cps': [], 'forward_cps': []}
+    convert_exposed_node(src_json_inst, src_nodes, target_json['vnf_exposed'])
+    return json.dumps(target_json)
+
+if __name__ == '__main__':
+    src_json = json.dumps(
+        {
+            "instance":{
+                "metadata":{
+                    "vendor":"ZTE",
+                    "name":"VCPE_NS",
+                    "csarVersion":"v1.0",
+                    "csarType":"NSAR",
+                    "csarProvider":"ZTE",
+                    "version":1,
+                    "invariant_id":"vcpe_ns_sff_1",
+                    "id":"VCPE_NS",
+                    "description":"vcpe_ns"
+                },
+                "nodes":[
+                    {
+                        "id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                        "type_name":"tosca.nodes.nfv.ext.FP",
+                        "template_name":"path2",
+                        "properties":{
+                            "symmetric":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "policy":{
+                                "type_name":"tosca.datatypes.nfv.ext.FPPolicy",
+                                "value":{
+                                    "type":"ACL",
+                                    "criteria":{
+                                        "dest_port_range":"1-100",
+                                        "ip_protocol":"tcp",
+                                        "source_ip_range":[
+                                            "119.1.1.1-119.1.1.10"
+                                        ],
+                                        "dest_ip_range":[
+                                            {"get_input":"NatIpRange"}
+                                        ],
+                                        "dscp":0,
+                                        "source_port_range":"1-100"
+                                    }
+                                }
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":0,
+                                "target_node_id":"m6000_data_out_qeukdtf6g87cnparxi51fa8s6"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":1,
+                                "target_node_id":"m600_tunnel_cp_imwfk5l48ljz0g9knc6d68hv5"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"VNAT_cfdljtspvkp234irka59wgab0",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"path1_bv53fblv26hawr8dj4fxe2rsd",
+                        "type_name":"tosca.nodes.nfv.ext.FP",
+                        "template_name":"path1",
+                        "properties":{
+                            "symmetric":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "policy":{
+                                "type_name":"tosca.datatypes.nfv.ext.FPPolicy",
+                                "value":{
+                                    "type":"ACL",
+                                    "criteria":{
+                                        "dest_port_range":"1-100",
+                                        "ip_protocol":"tcp",
+                                        "source_ip_range":[
+                                            "1-100"
+                                        ],
+                                        "dest_ip_range":[
+                                            "1-100"
+                                        ],
+                                        "dscp":4,
+                                        "source_port_range":"1-100"
+                                    }
+                                }
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":0,
+                                "target_node_id":"m6000_data_in_eldly5txw4frny3cc349uz3nc"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":1,
+                                "target_node_id":"m600_tunnel_cp_imwfk5l48ljz0g9knc6d68hv5"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"VFW_57z0ua89aiyl8ncvw7h7mjf34",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":3,
+                                "target_node_id":"VNAT_cfdljtspvkp234irka59wgab0",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":4,
+                                "target_node_id":"m600_tunnel_cp_imwfk5l48ljz0g9knc6d68hv5"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":5,
+                                "target_node_id":"m6000_data_out_qeukdtf6g87cnparxi51fa8s6"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"m6000_data_out_qeukdtf6g87cnparxi51fa8s6",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "template_name":"m6000_data_out",
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"11-22-33-22-11-44"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"xgei-0/4/1/5"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"176.1.1.2"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"virtualbinding",
+                                "source_requirement_index":0,
+                                "target_node_id":"m6000_s_7qtzo5nuocyfmebc6kp9raq18",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":1,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"VFW_57z0ua89aiyl8ncvw7h7mjf34",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VNF.VFW",
+                        "template_name":"VFW",
+                        "properties":{
+                            "is_shared":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "plugin_info":{
+                                "type_name":"string",
+                                "value":"vbrasplugin_1.0"
+                            },
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_extend_type":{
+                                "type_name":"string",
+                                "value":"driver"
+                            },
+                            "name":{
+                                "type_name":"string",
+                                "value":"VFW"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "cross_dc":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_type":{
+                                "type_name":"string",
+                                "value":"VFW"
+                            },
+                            "vnfd_version":{
+                                "type_name":"string",
+                                "value":"1.0.0"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"vcpe_vfw_zte_1_0"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "adjust_vnf_capacity":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "vmnumber_overquota_alarm":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "csarProvider":{
+                                "type_name":"string",
+                                "value":"ZTE"
+                            },
+                            "csarVersion":{
+                                "type_name":"string",
+                                "value":"v1.0"
+                            },
+                            "externalPluginManageNetworkName":{
+                                "type_name":"string",
+                                "value":"vlan_4007_plugin_net"
+                            },
+                            "csarType":{
+                                "type_name":"string",
+                                "value":"NFAR"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            },
+                            {
+                                "name":"vfw_fw_inout",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"vfw_ctrl_by_manager_cp",
+                                "source_requirement_index":0,
+                                "target_node_id":"ext_mnet_net_au2otee5mcy0dnpqykj487zr3",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"vfw_data_cp",
+                                "source_requirement_index":1,
+                                "target_node_id":"sfc_data_network_vx3pc1oahn0k0pa5q722yafee",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":3,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"m600_tunnel_cp_imwfk5l48ljz0g9knc6d68hv5",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "template_name":"m600_tunnel_cp",
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"00-11-00-22-33-00"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/13"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"191.167.100.5"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":0,
+                                "target_node_id":"ext_datanet_net_qtqzlx5dsthzs883hxjn6hyhd",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualbinding",
+                                "source_requirement_index":1,
+                                "target_node_id":"m6000_s_7qtzo5nuocyfmebc6kp9raq18",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"ext_mnet_net_au2otee5mcy0dnpqykj487zr3",
+                        "type_name":"tosca.nodes.nfv.ext.VL.Vmware",
+                        "template_name":"ext_mnet_net",
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"vlan_4008_mng_net"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"vlan_4008_mng_net"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"m6000_data_in_eldly5txw4frny3cc349uz3nc",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "template_name":"m6000_data_in",
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"11-22-33-22-11-41"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/7"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"1.1.1.1"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            },
+                            "bond":{
+                                "type_name":"string",
+                                "value":"none"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"virtualbinding",
+                                "source_requirement_index":0,
+                                "target_node_id":"m6000_s_7qtzo5nuocyfmebc6kp9raq18",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":1,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"ext_datanet_net_qtqzlx5dsthzs883hxjn6hyhd",
+                        "type_name":"tosca.nodes.nfv.ext.VL.Vmware",
+                        "template_name":"ext_datanet_net",
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"vlan_4004_tunnel_net"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"vlan_4004_tunnel_net"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"m600_mnt_cp_l3488y2a8ilyfdn0l89ni4os7",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "template_name":"m600_mnt_cp",
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"00-11-00-22-33-11"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/1"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"10.46.244.51"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            },
+                            "bond":{
+                                "type_name":"string",
+                                "value":"none"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":0,
+                                "target_node_id":"ext_mnet_net_au2otee5mcy0dnpqykj487zr3",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualbinding",
+                                "source_requirement_index":1,
+                                "target_node_id":"m6000_s_7qtzo5nuocyfmebc6kp9raq18",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"sfc_data_network_vx3pc1oahn0k0pa5q722yafee",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VL",
+                        "template_name":"sfc_data_network",
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"sfc_data_network"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "is_predefined":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"sfc_data_network"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"m6000_s_7qtzo5nuocyfmebc6kp9raq18",
+                        "type_name":"tosca.nodes.nfv.ext.PNF",
+                        "template_name":"m6000_s",
+                        "properties":{
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "pnf_type":{
+                                "type_name":"string",
+                                "value":"m6000s"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "management_address":{
+                                "type_name":"string",
+                                "value":"111111"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"m6000_s"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":False
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtualBinding",
+                                "type_name":"tosca.capabilities.nfv.VirtualBindable"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":0,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    },
+                    {
+                        "id":"VNAT_cfdljtspvkp234irka59wgab0",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VNF.VNAT",
+                        "template_name":"VNAT",
+                        "properties":{
+                            "is_shared":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "plugin_info":{
+                                "type_name":"string",
+                                "value":"vbrasplugin_1.0"
+                            },
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "name":{
+                                "type_name":"string",
+                                "value":"VNAT"
+                            },
+                            "vnf_extend_type":{
+                                "type_name":"string",
+                                "value":"driver"
+                            },
+                            "externalPluginManageNetworkName":{
+                                "type_name":"string",
+                                "value":"vlan_4007_plugin_net"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "cross_dc":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_type":{
+                                "type_name":"string",
+                                "value":"VNAT"
+                            },
+                            "vnfd_version":{
+                                "type_name":"string",
+                                "value":"1.0.0"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"vcpe_vnat_zte_1"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "adjust_vnf_capacity":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "vmnumber_overquota_alarm":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "csarProvider":{
+                                "type_name":"string",
+                                "value":"ZTE"
+                            },
+                            "NatIpRange":{
+                                "type_name":"string",
+                                "value":"192.167.0.10-192.168.0.20"
+                            },
+                            "csarVersion":{
+                                "type_name":"string",
+                                "value":"v1.0"
+                            },
+                            "csarType":{
+                                "type_name":"string",
+                                "value":"NFAR"
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"Standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "capabilities":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            },
+                            {
+                                "name":"vnat_fw_inout",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "relationships":[
+                            {
+                                "name":"vnat_ctrl_by_manager_cp",
+                                "source_requirement_index":0,
+                                "target_node_id":"ext_mnet_net_au2otee5mcy0dnpqykj487zr3",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"vnat_data_cp",
+                                "source_requirement_index":1,
+                                "target_node_id":"sfc_data_network_vx3pc1oahn0k0pa5q722yafee",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "source_requirement_index":2,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            },
+                            {
+                                "name":"forwarder",
+                                "source_requirement_index":3,
+                                "target_node_id":"path2_kgmfqr5ldqs9lj3oscrgxqefc",
+                                "target_capability_name":"feature"
+                            }
+                        ]
+                    }
+                ],
+                "groups":[
+                    {
+                        "id":"vnffg1_wk1aqhk6exoh5fmds2unu0uyc",
+                        "type_name":"tosca.groups.nfv.VNFFG",
+                        "template_name":"vnffg1",
+                        "properties":{
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "connection_point":{
+                                "type_name":"list",
+                                "value":[
+                                    "m6000_data_in",
+                                    "m600_tunnel_cp",
+                                    "m6000_data_out"
+                                ]
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "constituent_vnfs":{
+                                "type_name":"list",
+                                "value":[
+                                    "VFW",
+                                    "VNAT"
+                                ]
+                            },
+                            "number_of_endpoints":{
+                                "type_name":"integer",
+                                "value":3
+                            },
+                            "dependent_virtual_link":{
+                                "type_name":"list",
+                                "value":[
+                                    "sfc_data_network",
+                                    "ext_datanet_net",
+                                    "ext_mnet_net"
+                                ]
+                            }
+                        },
+                        "interfaces":[
+                            {
+                                "name":"standard",
+                                "description":"This lifecycle interface defines the essential, normative operations that TOSCA nodes may support.",
+                                "type_name":"tosca.interfaces.node.lifecycle.Standard",
+                                "operations":[
+                                    {
+                                        "name":"create",
+                                        "description":"Standard lifecycle create operation."
+                                    },
+                                    {
+                                        "name":"stop",
+                                        "description":"Standard lifecycle stop operation."
+                                    },
+                                    {
+                                        "name":"start",
+                                        "description":"Standard lifecycle start operation."
+                                    },
+                                    {
+                                        "name":"delete",
+                                        "description":"Standard lifecycle delete operation."
+                                    },
+                                    {
+                                        "name":"configure",
+                                        "description":"Standard lifecycle configure operation."
+                                    }
+                                ]
+                            }
+                        ],
+                        "member_node_ids":[
+                            "path1_bv53fblv26hawr8dj4fxe2rsd",
+                            "path2_kgmfqr5ldqs9lj3oscrgxqefc"
+                        ]
+                    }
+                ],
+                "substitution":{
+                    "node_type_name":"tosca.nodes.nfv.NS.VCPE_NS"
+                },
+                "inputs":{
+                    "externalDataNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4004_tunnel_net"
+                    },
+                    "sfc_data_network":{
+                        "type_name":"string",
+                        "value":"sfc_data_network"
+                    },
+                    "NatIpRange":{
+                        "type_name":"string",
+                        "value":"192.167.0.10-192.168.0.20"
+                    },
+                    "externalManageNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4008_mng_net"
+                    },
+                    "externalPluginManageNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4007_plugin_net"
+                    }
+                }
+            },
+            "model":{
+                "metadata":{
+                    "vendor":"ZTE",
+                    "name":"VCPE_NS",
+                    "csarVersion":"v1.0",
+                    "csarType":"NSAR",
+                    "csarProvider":"ZTE",
+                    "version":1,
+                    "invariant_id":"vcpe_ns_sff_1",
+                    "id":"VCPE_NS",
+                    "description":"vcpe_ns"
+                },
+                "node_templates":[
+                    {
+                        "name":"path2",
+                        "type_name":"tosca.nodes.nfv.ext.FP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "symmetric":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "policy":{
+                                "type_name":"tosca.datatypes.nfv.ext.FPPolicy",
+                                "value":{
+                                    "type":"ACL",
+                                    "criteria":{
+                                        "dest_port_range":"1-100",
+                                        "ip_protocol":"tcp",
+                                        "source_ip_range":[
+                                            "119.1.1.1-119.1.1.10"
+                                        ],
+                                        "dest_ip_range":[
+                                            {"get_input":"NatIpRange"}
+                                        ],
+                                        "dscp":0,
+                                        "source_port_range":"1-100"
+                                    }
+                                }
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ed0288a10>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m6000_data_out"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m600_tunnel_cp"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"VNAT",
+                                "target_capability_name":"vnat_fw_inout"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"path1",
+                        "type_name":"tosca.nodes.nfv.ext.FP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "symmetric":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "policy":{
+                                "type_name":"tosca.datatypes.nfv.ext.FPPolicy",
+                                "value":{
+                                    "type":"ACL",
+                                    "criteria":{
+                                        "dest_port_range":"1-100",
+                                        "ip_protocol":"tcp",
+                                        "source_ip_range":[
+                                            "1-100"
+                                        ],
+                                        "dest_ip_range":[
+                                            "1-100"
+                                        ],
+                                        "dscp":4,
+                                        "source_port_range":"1-100"
+                                    }
+                                }
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec81df090>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m6000_data_in"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m600_tunnel_cp"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"VFW",
+                                "target_capability_name":"vfw_fw_inout"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"VNAT",
+                                "target_capability_name":"vnat_fw_inout"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m600_tunnel_cp"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_template_name":"m6000_data_out"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"m6000_data_out",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"11-22-33-22-11-44"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"xgei-0/4/1/5"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"176.1.1.2"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec82c6610>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"virtualbinding",
+                                "target_node_template_name":"m6000_s",
+                                "target_capability_name":"virtualBinding"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"VFW",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VNF.VFW",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "is_shared":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "plugin_info":{
+                                "type_name":"string",
+                                "value":"vbrasplugin_1.0"
+                            },
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_extend_type":{
+                                "type_name":"string",
+                                "value":"driver"
+                            },
+                            "name":{
+                                "type_name":"string",
+                                "value":"VFW"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "cross_dc":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_type":{
+                                "type_name":"string",
+                                "value":"VFW"
+                            },
+                            "vnfd_version":{
+                                "type_name":"string",
+                                "value":"1.0.0"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"vcpe_vfw_zte_1_0"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "adjust_vnf_capacity":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "vmnumber_overquota_alarm":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "csarProvider":{
+                                "type_name":"string",
+                                "value":"ZTE"
+                            },
+                            "csarVersion":{
+                                "type_name":"string",
+                                "value":"v1.0"
+                            },
+                            "externalPluginManageNetworkName":{
+                                "type_name":"string",
+                                "value":"vlan_4007_plugin_net"
+                            },
+                            "csarType":{
+                                "type_name":"string",
+                                "value":"NFAR"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec8281950>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            },
+                            {
+                                "name":"vfw_fw_inout",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"vfw_ctrl_by_manager_cp",
+                                "target_node_template_name":"ext_mnet_net",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"vfw_data_cp",
+                                "target_node_template_name":"sfc_data_network",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"m600_tunnel_cp",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"00-11-00-22-33-00"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/13"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"191.167.100.5"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x1ae39d0>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"virtualLink",
+                                "target_node_template_name":"ext_datanet_net",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"virtualbinding",
+                                "target_node_template_name":"m6000_s",
+                                "target_capability_name":"virtualBinding"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"ext_mnet_net",
+                        "type_name":"tosca.nodes.nfv.ext.VL.Vmware",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"vlan_4008_mng_net"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"vlan_4008_mng_net"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ed00f89d0>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"m6000_data_in",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"11-22-33-22-11-41"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/7"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"1.1.1.1"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            },
+                            "bond":{
+                                "type_name":"string",
+                                "value":"none"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x1745710>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"virtualbinding",
+                                "target_node_template_name":"m6000_s",
+                                "target_capability_name":"virtualBinding"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"ext_datanet_net",
+                        "type_name":"tosca.nodes.nfv.ext.VL.Vmware",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"vlan_4004_tunnel_net"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"vlan_4004_tunnel_net"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8eac063990>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"m600_mnt_cp",
+                        "type_name":"tosca.nodes.nfv.ext.zte.CP",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "direction":{
+                                "type_name":"string",
+                                "value":"bidirectional"
+                            },
+                            "vnic_type":{
+                                "type_name":"string",
+                                "value":"normal"
+                            },
+                            "bandwidth":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "mac_address":{
+                                "type_name":"string",
+                                "value":"00-11-00-22-33-11"
+                            },
+                            "interface_name":{
+                                "type_name":"string",
+                                "value":"gei-0/4/0/1"
+                            },
+                            "ip_address":{
+                                "type_name":"string",
+                                "value":"10.46.244.51"
+                            },
+                            "order":{
+                                "type_name":"integer",
+                                "value":0
+                            },
+                            "sfc_encapsulation":{
+                                "type_name":"string",
+                                "value":"mac"
+                            },
+                            "bond":{
+                                "type_name":"string",
+                                "value":"none"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec81264d0>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"virtualLink",
+                                "target_node_template_name":"ext_mnet_net",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"virtualbinding",
+                                "target_node_template_name":"m6000_s",
+                                "target_capability_name":"virtualBinding"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"sfc_data_network",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VL",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "name":{
+                                "type_name":"string",
+                                "value":"sfc_data_network"
+                            },
+                            "dhcp_enabled":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "is_predefined":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "location_info":{
+                                "type_name":"tosca.datatypes.nfv.ext.LocationInfo",
+                                "value":{
+                                    "tenant":"admin",
+                                    "vimid":2,
+                                    "availability_zone":"nova"
+                                }
+                            },
+                            "ip_version":{
+                                "type_name":"integer",
+                                "value":4
+                            },
+                            "mtu":{
+                                "type_name":"integer",
+                                "value":1500
+                            },
+                            "network_name":{
+                                "type_name":"string",
+                                "value":"sfc_data_network"
+                            },
+                            "network_type":{
+                                "type_name":"string",
+                                "value":"vlan"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec813c6d0>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtual_linkable",
+                                "type_name":"tosca.capabilities.nfv.VirtualLinkable"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"m6000_s",
+                        "type_name":"tosca.nodes.nfv.ext.PNF",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "pnf_type":{
+                                "type_name":"string",
+                                "value":"m6000s"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "management_address":{
+                                "type_name":"string",
+                                "value":"111111"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"m6000_s"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":False
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec8132490>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"virtualBinding",
+                                "type_name":"tosca.capabilities.nfv.VirtualBindable"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    },
+                    {
+                        "name":"VNAT",
+                        "type_name":"tosca.nodes.nfv.ext.zte.VNF.VNAT",
+                        "default_instances":1,
+                        "min_instances":0,
+                        "properties":{
+                            "is_shared":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "plugin_info":{
+                                "type_name":"string",
+                                "value":"vbrasplugin_1.0"
+                            },
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "request_reclassification":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "name":{
+                                "type_name":"string",
+                                "value":"VNAT"
+                            },
+                            "vnf_extend_type":{
+                                "type_name":"string",
+                                "value":"driver"
+                            },
+                            "externalPluginManageNetworkName":{
+                                "type_name":"string",
+                                "value":"vlan_4007_plugin_net"
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "cross_dc":{
+                                "type_name":"boolean",
+                                "value":False
+                            },
+                            "vnf_type":{
+                                "type_name":"string",
+                                "value":"VNAT"
+                            },
+                            "vnfd_version":{
+                                "type_name":"string",
+                                "value":"1.0.0"
+                            },
+                            "id":{
+                                "type_name":"string",
+                                "value":"vcpe_vnat_zte_1"
+                            },
+                            "nsh_aware":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "adjust_vnf_capacity":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "vmnumber_overquota_alarm":{
+                                "type_name":"boolean",
+                                "value":True
+                            },
+                            "csarProvider":{
+                                "type_name":"string",
+                                "value":"ZTE"
+                            },
+                            "NatIpRange":{
+                                "type_name":"string",
+                                "value":"192.167.0.10-192.168.0.20"
+                            },
+                            "csarVersion":{
+                                "type_name":"string",
+                                "value":"v1.0"
+                            },
+                            "csarType":{
+                                "type_name":"string",
+                                "value":"NFAR"
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x1bba810>"
+                        ],
+                        "capability_templates":[
+                            {
+                                "name":"feature",
+                                "type_name":"tosca.capabilities.Node"
+                            },
+                            {
+                                "name":"forwarder",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            },
+                            {
+                                "name":"vnat_fw_inout",
+                                "type_name":"tosca.capabilities.nfv.Forwarder"
+                            }
+                        ],
+                        "requirement_templates":[
+                            {
+                                "name":"vnat_ctrl_by_manager_cp",
+                                "target_node_template_name":"ext_mnet_net",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"vnat_data_cp",
+                                "target_node_template_name":"sfc_data_network",
+                                "target_capability_name":"virtual_linkable"
+                            },
+                            {
+                                "name":"virtualLink",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            },
+                            {
+                                "name":"forwarder",
+                                "target_node_type_name":"tosca.nodes.Root"
+                            }
+                        ]
+                    }
+                ],
+                "group_templates":[
+                    {
+                        "name":"vnffg1",
+                        "type_name":"tosca.groups.nfv.VNFFG",
+                        "properties":{
+                            "vendor":{
+                                "type_name":"string",
+                                "value":"zte"
+                            },
+                            "connection_point":{
+                                "type_name":"list",
+                                "value":[
+                                    "m6000_data_in",
+                                    "m600_tunnel_cp",
+                                    "m6000_data_out"
+                                ]
+                            },
+                            "version":{
+                                "type_name":"string",
+                                "value":"1.0"
+                            },
+                            "constituent_vnfs":{
+                                "type_name":"list",
+                                "value":[
+                                    "VFW",
+                                    "VNAT"
+                                ]
+                            },
+                            "number_of_endpoints":{
+                                "type_name":"integer",
+                                "value":3
+                            },
+                            "dependent_virtual_link":{
+                                "type_name":"list",
+                                "value":[
+                                    "sfc_data_network",
+                                    "ext_datanet_net",
+                                    "ext_mnet_net"
+                                ]
+                            }
+                        },
+                        "interface_templates":[
+                            "<aria.modeling.model_elements.InterfaceTemplate object at 0x7f8ec811cd10>"
+                        ],
+                        "member_node_template_names":[
+                            "path1",
+                            "path2"
+                        ]
+                    }
+                ],
+                "substitution_template":{
+                    "node_type_name":"tosca.nodes.nfv.NS.VCPE_NS"
+                },
+                "inputs":{
+                    "externalDataNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4004_tunnel_net"
+                    },
+                    "sfc_data_network":{
+                        "type_name":"string",
+                        "value":"sfc_data_network"
+                    },
+                    "NatIpRange":{
+                        "type_name":"string",
+                        "value":"192.167.0.10-192.168.0.20"
+                    },
+                    "externalManageNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4008_mng_net"
+                    },
+                    "externalPluginManageNetworkName":{
+                        "type_name":"string",
+                        "value":"vlan_4007_plugin_net"
+                    }
+                }
+            }
+        }
+    )
+    print convert_nsd_model(src_json)
+
+
+
+
diff --git a/share/common/utils/values.py b/share/common/utils/values.py
new file mode 100644
index 00000000..7478c013
--- /dev/null
+++ b/share/common/utils/values.py
@@ -0,0 +1,22 @@
+# Copyright (c) 2017-2018 Wind River Systems, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
+
+def ignore_case_get(args, key, def_val=""):
+    if not key:
+        return def_val
+    if key in args:
+        return args[key]
+    for old_key in args:
+        if old_key.upper() == key.upper():
+            return args[old_key]
+    return def_val
+