001// Copyright 2012 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007// http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.services.assets;
016
017import org.apache.tapestry5.ioc.Resource;
018import org.apache.tapestry5.services.assets.ResourceDependencies;
019import org.apache.tapestry5.services.assets.StreamableResource;
020import org.apache.tapestry5.services.assets.StreamableResourceProcessing;
021import org.apache.tapestry5.services.assets.StreamableResourceSource;
022
023import java.io.IOException;
024import java.util.Set;
025
026/**
027 * Base class for {@link StreamableResourceSource} implementations.
028 *
029 * @since 5.4
030 */
031public abstract class DelegatingSRS implements StreamableResourceSource
032{
033    protected final StreamableResourceSource delegate;
034
035    protected DelegatingSRS(StreamableResourceSource delegate)
036    {
037        this.delegate = delegate;
038    }
039
040    public Set<String> fileExtensionsForContentType(String contentType)
041    {
042        return delegate.fileExtensionsForContentType(contentType);
043    }
044
045    public StreamableResource getStreamableResource(Resource baseResource, StreamableResourceProcessing processing, ResourceDependencies dependencies) throws IOException
046    {
047        return delegate.getStreamableResource(baseResource, processing, dependencies);
048    }
049}