add sync task in workflow

add sync task in workflow to support NS

Change-Id: I89e6a26551d47218714526c677d551fc55fe1922
Issue-ID: VFC-1041
Signed-off-by: maopengzhang <zhang.maopeng1@zte.com.cn>

5 files changed, 164 insertions, 0 deletions

diff --git a/lcm/workflows/graphflow/__init__.py b/lcm/workflows/graphflow/__init__.py
new file mode 100644
index 00000000..8e6d0ad0
--- /dev/null
+++ b/lcm/workflows/graphflow/__init__.py
@@ -0,0 +1,25 @@
+# Copyright 2018 ZTE 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.
+
+TASK_STAUS = (STARTED, PROCESSING, FINISHED, ERROR) = ("started", "processing", "finished", "error")
+TIMEOUT_DEFAULT = 10
+
+# from lcm.workflows.graphflow.flow.flow import GraphFlow
+# from lcm.workflows.graphflow.task.task import Task
+# from lcm.workflows.graphflow.task.sync_task import SyncTask
+# from lcm.workflows.graphflow.task.sync_rest_task import SyncRestTask
+# from lcm.workflows.graphflow.task.async_task import AsyncTask
+# from lcm.workflows.graphflow.task.async_rest_task import ASyncRestTask
+# from lcm.workflows.graphflow.task.lcm_async_rest_task import LcmASyncRestTask
+# from lcm.workflows.graphflow.task.lcm_sync_rest_task import LcmSyncRestTask
diff --git a/lcm/workflows/graphflow/task/__init__.py b/lcm/workflows/graphflow/task/__init__.py
new file mode 100644
index 00000000..8f5f8aa7
--- /dev/null
+++ b/lcm/workflows/graphflow/task/__init__.py
@@ -0,0 +1,19 @@
+# Copyright 2018 ZTE 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.
+#
+# from lcm.workflows.graphflow.task.async_rest_task import ASyncRestTask
+# from lcm.workflows.graphflow.task.async_task import AsyncTask
+# from lcm.workflows.graphflow.task.sync_rest_task import SyncRestTask
+# from lcm.workflows.graphflow.task.sync_task import SyncTask
+# from lcm.workflows.graphflow.task.task import Task
diff --git a/lcm/workflows/graphflow/task/sync_rest_task.py b/lcm/workflows/graphflow/task/sync_rest_task.py
new file mode 100644
index 00000000..0cb8747a
--- /dev/null
+++ b/lcm/workflows/graphflow/task/sync_rest_task.py
@@ -0,0 +1,42 @@
+# Copyright 2018 ZTE 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.
+
+from lcm.workflows.graphflow.task.sync_task import SyncTask
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class SyncRestTask(SyncTask):
+
+    STATUS_OK = (HTTP_200_OK, HTTP_201_CREATED, HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED) = ('200', '201', '204', '202')
+    HTTP_METHOD = (POST, GET, PUT, DELETE) = ("POST", "GET", "PUT", "DELETE")
+
+    def __init__(self, *args):
+        super(SyncRestTask, self).__init__(*args)
+        self.url = self.input.get(self.URL, "")
+        self.method = self.input.get(self.METHOD, "")
+        self.content = self.input.get(self.CONTENT, "")
+
+    def run(self):
+        status, output = self.call_rest(self.url, self.method, self.content)
+        if status in self.STATUS_OK:
+            status = self.FINISHED
+        else:
+            status = self.ERROR
+        logger.debug("SyncRestTask status %s, output %s" % (status, output))
+        return status, output
+
+    def call_rest(self, url, method, content):
+        pass
diff --git a/lcm/workflows/graphflow/task/sync_task.py b/lcm/workflows/graphflow/task/sync_task.py
new file mode 100644
index 00000000..9b7d1c85
--- /dev/null
+++ b/lcm/workflows/graphflow/task/sync_task.py
@@ -0,0 +1,30 @@
+# Copyright 2018 ZTE 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.
+
+from lcm.workflows.graphflow.task.task import Task
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class SyncTask(Task):
+
+    def execute(self):
+        logger.debug("start task: %s", self.key)
+        status, output = self.run()
+        logger.debug("SyncTask status %s, output %s" % (status, output))
+        self.update_task(status, output)
+
+    def run(self):
+        pass
diff --git a/lcm/workflows/graphflow/task/task.py b/lcm/workflows/graphflow/task/task.py
new file mode 100644
index 00000000..9210d06a
--- /dev/null
+++ b/lcm/workflows/graphflow/task/task.py
@@ -0,0 +1,48 @@
+# Copyright 2018 ZTE 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 datetime
+from lcm.workflows.graphflow import STARTED, PROCESSING, FINISHED, ERROR, TIMEOUT_DEFAULT
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Task(object):
+    TASK_STATUS = (STARTED, PROCESSING, FINISHED, ERROR) = (STARTED, PROCESSING, FINISHED, ERROR)
+    TASK_ATTRIBUTES = (KEY, MANAGER, INPUT, TIMEOUT, ENDTIME, OUTPUT, STATUS) = ("key", "manager", "input", "timeout", "endtime", "output", "status")
+    INPUT_REST = (URL, METHOD, CONTENT) = ("url", "method", "content")
+    TIMEOUT_DEFAULT = TIMEOUT_DEFAULT
+    TIME_FORMAT = '%Y-%m-%d %H:%M:%S'
+
+    def __init__(self, *args):
+        task = args[0]
+        self.key = task[self.KEY]
+        self.taskManager = task[self.MANAGER]
+        self.input = task[self.INPUT]
+        self.timeout = task[self.TIMEOUT] if self.TIMEOUT in task else self.TIMEOUT_DEFAULT
+        self.endtime = (datetime.datetime.now() + datetime.timedelta(seconds=self.timeout)).strftime(self.TIME_FORMAT)
+        self.status = STARTED
+        self.output = None
+
+    def execute(self):
+        pass
+
+    def update_task(self, status, output=None):
+        task = self.taskManager.get_task(self.key)
+        task.status = status
+        if output:
+            task.output = output
+        logger.debug("Update task %s status %s" % (task.key, task.status))
+        self.taskManager.update_task(self.key, task)