001// Copyright 2010, 2011 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.meta;
016
017import org.apache.tapestry5.model.MutableComponentModel;
018import org.apache.tapestry5.plastic.PlasticClass;
019import org.apache.tapestry5.services.meta.MetaDataExtractor;
020import org.apache.tapestry5.services.meta.MetaWorker;
021import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
022import org.apache.tapestry5.services.transform.TransformationSupport;
023
024import java.lang.annotation.Annotation;
025import java.util.Map;
026
027@SuppressWarnings("unchecked")
028public class MetaWorkerImpl implements MetaWorker, ComponentClassTransformWorker2
029{
030    private final Map<Class, MetaDataExtractor> configuration;
031
032    public MetaWorkerImpl(Map<Class, MetaDataExtractor> configuration)
033    {
034        this.configuration = configuration;
035    }
036
037    public ComponentClassTransformWorker2 getWorker()
038    {
039        return this;
040    }
041
042    public void transform(PlasticClass plasticClass, TransformationSupport support, MutableComponentModel model)
043    {
044        for (Class c : configuration.keySet())
045        {
046            Annotation annotation = plasticClass.getAnnotation(c);
047
048            if (annotation != null)
049            {
050                MetaDataExtractor extractor = configuration.get(c);
051
052                extractor.extractMetaData(model, annotation);
053            }
054        }
055    }
056
057}