Add Artifact Manager service.

[ccsdk/cds.git] / ms / artifact-manager / manager / errors.py

diff --git a/ms/artifact-manager/manager/errors.py b/ms/artifact-manager/manager/errors.py
new file mode 100644 (file)
index 0000000..feafd76
--- /dev/null
+++ b/ms/artifact-manager/manager/errors.py
@@ -0,0 +1,64 @@
+"""Copyright 2019 Deutsche Telekom.
+
+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.
+"""
+
+
+class ArtifactManagerError(Exception):
+    """Base Artifact Manager exception class."""
+
+    status_code: int = 0
+    message: str = "Error"
+
+    def __init__(self, message: str = None) -> None:
+        """Initialize exception with optional message."""
+        if message:
+            self.message: str = message
+
+    @property
+    def status_code(self) -> int:
+        """Artifact Manager error class status code.
+
+        Base class has no and shouldn't have any status code.
+        """
+        if self.status_code == 0:
+            raise NotImplementedError
+        return self.status_code
+
+
+class InvalidRequestError(ArtifactManagerError):
+    """Raised when request has invalid or incomplete data."""
+
+    status_code: int = 500
+    message: str = "Invalid request"
+
+
+class ArtifactNotFoundError(ArtifactManagerError):
+    """Raised when requested artifact doesn't exist in system."""
+
+    status_code: int = 500
+    message: str = "Artifact not found"
+
+
+class ArtifactIOError(ArtifactManagerError):
+    """Raised on input/output error."""
+
+    status_code: int = 500
+    message: str = "Artifact is corrupted"
+
+
+class ArtifactOverwriteError(ArtifactManagerError):
+    """Raised when we cannot remove old artifact to save new."""
+
+    status_code: int = 500
+    message: str = "Artifact already exists and cannot be overwritten"