1 files changed, 91 insertions, 0 deletions
diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/orchestrator/workflows/exceptions.py b/azure/aria/aria-extension-cloudify/src/aria/aria/orchestrator/workflows/exceptions.py
new file mode 100644
index 0000000..2a1d6b1
--- /dev/null
+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/orchestrator/workflows/exceptions.py
@@ -0,0 +1,91 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+"""
+Workflow exceptions.
+"""
+
+import os
+
+from .. import exceptions
+
+
+class ExecutorException(exceptions.AriaError):
+    """
+    General executor exception.
+    """
+    pass
+
+
+class ProcessException(ExecutorException):
+    """
+    Raised when subprocess execution fails.
+    """
+
+    def __init__(self, command, stderr=None, stdout=None, return_code=None):
+        """
+        Process class Exception
+        :param list command: child process command
+        :param str message: custom message
+        :param str stderr: child process stderr
+        :param str stdout: child process stdout
+        :param int return_code: child process exit code
+        """
+        super(ProcessException, self).__init__("child process failed")
+        self.command = command
+        self.stderr = stderr
+        self.stdout = stdout
+        self.return_code = return_code
+
+    @property
+    def explanation(self):
+        """
+        Describes the error in detail
+        """
+        return (
+            'Command "{error.command}" executed with an error.{0}'
+            'code: {error.return_code}{0}'
+            'error: {error.stderr}{0}'
+            'output: {error.stdout}'.format(os.linesep, error=self))
+
+
+class AriaEngineError(exceptions.AriaError):
+    """
+    Raised by the workflow engine.
+    """
+
+
+class TaskException(exceptions.AriaError):
+    """
+    Raised by the task.
+    """
+
+
+class TaskCreationException(TaskException):
+    """
+    Could not create the task.
+    """
+
+
+class OperationNotFoundException(TaskCreationException):
+    """
+    Could not find an operation on the node or relationship.
+    """
+
+
+class PluginNotFoundException(TaskCreationException):
+    """
+    Could not find a plugin matching the plugin specification.
+    """