Add exceptions from ceilometerclient

tuskarclient/exc.py

@@ -0,0 +1,163 @@
+#    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 sys
+
+
+class BaseException(Exception):
+    """An error occurred."""
+    def __init__(self, message=None):
+        self.message = message
+
+    def __str__(self):
+        return self.message or self.__class__.__doc__
+
+
+class CommandError(BaseException):
+    """Invalid usage of CLI."""
+
+
+class InvalidEndpoint(BaseException):
+    """The provided endpoint is invalid."""
+
+
+class CommunicationError(BaseException):
+    """Unable to communicate with server."""
+
+
+class ClientException(Exception):
+    """DEPRECATED."""
+
+
+class HTTPException(ClientException):
+    """Base exception for all HTTP-derived exceptions."""
+    code = 'N/A'
+
+    def __init__(self, details=None):
+        self.details = details
+
+    def __str__(self):
+        return "%s (HTTP %s)" % (self.__class__.__name__, self.code)
+
+
+class HTTPMultipleChoices(HTTPException):
+    code = 300
+
+    def __str__(self):
+        self.details = ("Requested version of OpenStack Images API is not"
+                        "available.")
+        return "%s (HTTP %s) %s" % (self.__class__.__name__, self.code,
+                                    self.details)
+
+
+class BadRequest(HTTPException):
+    """DEPRECATED."""
+    code = 400
+
+
+class HTTPBadRequest(BadRequest):
+    pass
+
+
+class Unauthorized(HTTPException):
+    """DEPRECATED."""
+    code = 401
+
+
+class HTTPUnauthorized(Unauthorized):
+    pass
+
+
+class Forbidden(HTTPException):
+    """DEPRECATED."""
+    code = 403
+
+
+class HTTPForbidden(Forbidden):
+    pass
+
+
+class NotFound(HTTPException):
+    """DEPRECATED."""
+    code = 404
+
+
+class HTTPNotFound(NotFound):
+    pass
+
+
+class HTTPMethodNotAllowed(HTTPException):
+    code = 405
+
+
+class Conflict(HTTPException):
+    """DEPRECATED."""
+    code = 409
+
+
+class HTTPConflict(Conflict):
+    pass
+
+
+class OverLimit(HTTPException):
+    """DEPRECATED."""
+    code = 413
+
+
+class HTTPOverLimit(OverLimit):
+    pass
+
+
+class HTTPInternalServerError(HTTPException):
+    code = 500
+
+
+class HTTPNotImplemented(HTTPException):
+    code = 501
+
+
+class HTTPBadGateway(HTTPException):
+    code = 502
+
+
+class ServiceUnavailable(HTTPException):
+    """DEPRECATED."""
+    code = 503
+
+
+class HTTPServiceUnavailable(ServiceUnavailable):
+    pass
+
+
+#NOTE(bcwaldon): Build a mapping of HTTP codes to corresponding exception
+# classes
+_code_map = {}
+for obj_name in dir(sys.modules[__name__]):
+    if obj_name.startswith('HTTP'):
+        obj = getattr(sys.modules[__name__], obj_name)
+        _code_map[obj.code] = obj
+
+
+def from_response(response):
+    """Return an instance of an HTTPException based on httplib response."""
+    cls = _code_map.get(response.status, HTTPException)
+    return cls()
+
+
+class NoTokenLookupException(Exception):
+    """DEPRECATED."""
+    pass
+
+
+class EndpointNotFound(Exception):
+    """DEPRECATED."""
+    pass