Redefine respository structure

Change the file structure to make appropriate for stand alone parser.

Change-Id: I6d5259b61b1cd82949262fee4930fa66703ad036

toscaparser/common/exception.py

@@ -0,0 +1,100 @@
+#    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.
+
+'''
+TOSCA exception classes
+'''
+import logging
+import sys
+
+from toscaparser.utils.gettextutils import _
+
+
+log = logging.getLogger(__name__)
+
+
+class TOSCAException(Exception):
+    '''Base exception class for TOSCA
+
+    To correctly use this class, inherit from it and define
+    a 'msg_fmt' property.
+
+    '''
+
+    _FATAL_EXCEPTION_FORMAT_ERRORS = False
+
+    message = _('An unknown exception occurred.')
+
+    def __init__(self, **kwargs):
+        try:
+            self.message = self.msg_fmt % kwargs
+        except KeyError:
+            exc_info = sys.exc_info()
+            log.exception(_('Exception in string format operation: %s')
+                          % exc_info[1])
+
+            if TOSCAException._FATAL_EXCEPTION_FORMAT_ERRORS:
+                raise exc_info[0]
+
+    def __str__(self):
+        return self.message
+
+    @staticmethod
+    def set_fatal_format_exception(flag):
+        if isinstance(flag, bool):
+            TOSCAException._FATAL_EXCEPTION_FORMAT_ERRORS = flag
+
+
+class MissingRequiredFieldError(TOSCAException):
+    msg_fmt = _('%(what)s is missing required field: "%(required)s".')
+
+
+class UnknownFieldError(TOSCAException):
+    msg_fmt = _('%(what)s contain(s) unknown field: "%(field)s", '
+                'refer to the definition to verify valid values.')
+
+
+class TypeMismatchError(TOSCAException):
+    msg_fmt = _('%(what)s must be of type: "%(type)s".')
+
+
+class InvalidNodeTypeError(TOSCAException):
+    msg_fmt = _('Node type "%(what)s" is not a valid type.')
+
+
+class InvalidTypeError(TOSCAException):
+    msg_fmt = _('Type "%(what)s" is not a valid type.')
+
+
+class InvalidSchemaError(TOSCAException):
+    msg_fmt = _("%(message)s")
+
+
+class ValidationError(TOSCAException):
+    msg_fmt = _("%(message)s")
+
+
+class UnknownInputError(TOSCAException):
+    msg_fmt = _('Unknown input: %(input_name)s')
+
+
+class InvalidPropertyValueError(TOSCAException):
+    msg_fmt = _('Value of property "%(what)s" is invalid.')
+
+
+class InvalidTemplateVersion(TOSCAException):
+    msg_fmt = _('The template version "%(what)s" is invalid. '
+                'The valid versions are: "%(valid_versions)s"')
+
+
+class InvalidTOSCAVersionPropertyException(TOSCAException):
+    msg_fmt = _('Value of TOSCA version property "%(what)s" is invalid.')