Add API to get the status of async task

JIRA: YARDSTICK-526

Currently there are many API run a task using sub thread.
But we don't know the status of this task.
So we need to offer a API to query the status of this task.

Change-Id: I8d2cc558750bf9270aed4a7abb8bf35d17894d83
Signed-off-by: chenjiankun <chenjiankun1@huawei.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/api/resources/asynctask.py b/api/resources/asynctask.py
new file mode 100644
index 000000000..dd2a71003
--- /dev/null
+++ b/api/resources/asynctask.py
@@ -0,0 +1,35 @@
+# ############################################################################
+# Copyright (c) 2017 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+# ############################################################################
+import uuid
+
+from api.utils import common as common_utils
+from api.database.models import AsyncTasks
+
+
+def default(args):
+    return _get_status(args)
+
+
+def _get_status(args):
+    try:
+        task_id = args['task_id']
+        uuid.UUID(task_id)
+    except KeyError:
+        message = 'measurement and task_id must be provided'
+        return common_utils.error_handler(message)
+
+    asynctask = AsyncTasks.query.filter_by(task_id=task_id).first()
+
+    try:
+        status = asynctask.status
+        error = asynctask.error if asynctask.error else []
+
+        return common_utils.result_handler(status, error)
+    except AttributeError:
+        return common_utils.error_handler('no such task')