Add Lenovo ThinkCLoud Driver

add a new branch lenovo
modify pom.xml under the root

Change-Id: I5edd57bf3e9cc1e32c5a94b9494daf645b220eaa
Issue-ID: MULTICLOUD-506
Signed-off-by: Changjun Wang <310397125@qq.com>

1 files changed, 144 insertions, 0 deletions

diff --git a/lenovo/thinkcloud/resource/views/capacity.py b/lenovo/thinkcloud/resource/views/capacity.py
new file mode 100644
index 00000000..e76c93a3
--- /dev/null
+++ b/lenovo/thinkcloud/resource/views/capacity.py
@@ -0,0 +1,144 @@
+# Copyright (c) 2018 Intel Corporation.
+#
+# 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.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import logging
+import traceback
+
+from common.exceptions import VimDriverNewtonException
+from newton_base.util import VimDriverUtils
+
+from keystoneauth1.exceptions import HttpError
+from rest_framework import status
+from rest_framework.response import Response
+from rest_framework.views import APIView
+from common.msapi import extsys
+
+
+logger = logging.getLogger(__name__)
+
+
+class CapacityCheck(APIView):
+
+    def __init__(self):
+        self._logger = logger
+
+    def post(self, request, vimid=""):
+        self._logger.info("CapacityCheck--post::vimid, data> %s, %s" % (vimid, request.data))
+        self._logger.debug("CapacityCheck--post::META> %s" % request.META)
+
+        hasEnoughResource = False
+        try:
+            resource_demand = request.data
+
+            tenant_name = None
+            vim = VimDriverUtils.get_vim_info(vimid)
+            sess = VimDriverUtils.get_session(vim, tenant_name)
+
+            # get token:
+            cloud_owner, regionid = extsys.decode_vim_id(vimid)
+            interface = 'public'
+            service = {'service_type': 'compute',
+                       'interface': interface,
+                       'region_name': vim['openstack_region_id']
+                       if vim.get('openstack_region_id')
+                       else vim['cloud_region_id']}
+
+            # get limit for this tenant
+            req_resouce = "/limits"
+            resp = sess.get(req_resouce, endpoint_filter=service)
+            content = resp.json()
+            compute_limits = content['limits']['absolute']
+
+            # get total resource of this cloud region
+            try:
+                req_resouce = "/os-hypervisors/statistics"
+                self._logger.info("check os-hypervisors statistics> URI:%s" % req_resouce)
+                resp = sess.get(req_resouce, endpoint_filter=service)
+                self._logger.info("check os-hypervisors statistics> status:%s" % resp.status_code)
+                content = resp.json()
+                hypervisor_statistics = content['hypervisor_statistics']
+                self._logger.debug("check os-hypervisors statistics> resp data:%s" % content)
+            except HttpError as e:
+                if e.http_status == status.HTTP_403_FORBIDDEN:
+                    # Due to non administrator account cannot get hypervisor data,
+                    # so construct enough resource data
+                    conVCPUS = int(resource_demand['vCPU'])
+                    conFreeRamMB = int(resource_demand['Memory'])
+                    conFreeDiskGB = int(resource_demand['Storage'])
+                    self._logger.info("Non administator forbidden to access hypervisor statistics data")
+                    hypervisor_statistics = {'vcpus_used': 0, 'vcpus': conVCPUS, 'free_ram_mb': conFreeRamMB, 'free_disk_gb': conFreeDiskGB}
+                else:
+                    # non forbiden exeption will be redirected
+                    raise e
+
+            # get storage limit for this tenant
+            service['service_type'] = 'volumev2'
+            req_resouce = "/limits"
+            resp = sess.get(req_resouce, endpoint_filter=service)
+            content = resp.json()
+            storage_limits = content['limits']['absolute']
+
+            # compute actual available resource for this tenant
+            remainVCPU = compute_limits['maxTotalCores'] - compute_limits['totalCoresUsed']
+            remainHypervisorVCPU = hypervisor_statistics['vcpus'] - hypervisor_statistics['vcpus_used']
+
+            if (remainVCPU > remainHypervisorVCPU):
+                remainVCPU = remainHypervisorVCPU
+
+            remainMEM = compute_limits['maxTotalRAMSize'] - compute_limits['totalRAMUsed']
+            remainHypervisorMEM = hypervisor_statistics['free_ram_mb']
+            if remainMEM > remainHypervisorMEM:
+                remainMEM = remainHypervisorMEM
+
+            remainStorage = storage_limits['maxTotalVolumeGigabytes'] - storage_limits['totalGigabytesUsed']
+            remainHypervisorStorage = hypervisor_statistics['free_disk_gb']
+            if (remainStorage > remainHypervisorStorage):
+                remainStorage = remainHypervisorStorage
+
+            # compare resource demanded with available
+            if (int(resource_demand['vCPU']) > remainVCPU):
+                hasEnoughResource = False
+            elif (int(resource_demand['Memory']) > remainMEM):
+                hasEnoughResource = False
+            elif (int(resource_demand['Storage']) > remainStorage):
+                hasEnoughResource = False
+            else:
+                hasEnoughResource = True
+
+            return Response(data={'result': hasEnoughResource}, status=status.HTTP_200_OK)
+        except VimDriverNewtonException as e:
+            return Response(data={'result': hasEnoughResource, 'error': e.content}, status=e.status_code)
+        except HttpError as e:
+            self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
+            resp = e.response.json()
+            resp.update({'result': hasEnoughResource})
+            return Response(data=e.response.json(), status=e.http_status)
+        except Exception as e:
+            self._logger.error(traceback.format_exc())
+            return Response(data={'result': hasEnoughResource, 'error': str(e)},
+                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
+
+
+class APIv1CapacityCheck(CapacityCheck):
+
+    def __init__(self):
+        super(APIv1CapacityCheck, self).__init__()
+        # self._logger = logger
+
+    def post(self, request, cloud_owner="", cloud_region_id=""):
+        self._logger.info("vimid, data> %s,%s, %s" % (cloud_owner, cloud_region_id, request.data))
+        self._logger.debug("META> %s" % request.META)
+
+        vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
+        return super(APIv1CapacityCheck, self).post(request, vimid)