Merge pull request #134 from felix5572/master

fix #126 add load_from_json for class Task

Author: felix5572

dpdispatcher/submission.py

@@ -394,6 +394,13 @@ def __getitem__(self, key):
     def get_hash(self):
         return sha1(str(self.serialize()).encode('utf-8')).hexdigest()
 
+    @classmethod
+    def load_from_json(cls, json_file):
+        with open(json_file, 'r') as f:
+            task_dict = json.load(f)
+        task = cls.deserialize(task_dict=task_dict)
+        return task
+
     @classmethod
     def deserialize(cls, task_dict):
         """convert the task_dict to a Task class object

tests/test_shell_trival_dir/recover_dir/mock_recover_task.txt

@@ -0,0 +1 @@
+# mock file for unittest; test when dpdispatcher need recover tasks