diff options
Diffstat (limited to 'azure/aria/aria-extension-cloudify/src/aria/aria/parser/loading/source.py')
-rw-r--r-- | azure/aria/aria-extension-cloudify/src/aria/aria/parser/loading/source.py | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/parser/loading/source.py b/azure/aria/aria-extension-cloudify/src/aria/aria/parser/loading/source.py new file mode 100644 index 0000000..bcd6dd1 --- /dev/null +++ b/azure/aria/aria-extension-cloudify/src/aria/aria/parser/loading/source.py @@ -0,0 +1,44 @@ +# 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. + +from .location import LiteralLocation, UriLocation +from .literal import LiteralLoader +from .uri import UriTextLoader + + +class LoaderSource(object): + """ + Base class for ARIA loader sources. + + Loader sources provide appropriate :class:`Loader` instances for locations. + """ + + def get_loader(self, context, location, origin_location): + raise NotImplementedError + + +class DefaultLoaderSource(LoaderSource): + """ + The default ARIA loader source will generate a :class:`UriTextLoader` for + :class:`UriLocation` and a :class:`LiteralLoader` for a :class:`LiteralLocation`. + """ + + def get_loader(self, context, location, origin_location): + if isinstance(location, UriLocation): + return UriTextLoader(context, location, origin_location) + elif isinstance(location, LiteralLocation): + return LiteralLoader(location) + + return super(DefaultLoaderSource, self).get_loader(context, location, origin_location) |