    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
    015    package org.apache.tapestry5.internal.services.meta;
    016
    017    import org.apache.tapestry5.model.MutableComponentModel;
    018    import org.apache.tapestry5.plastic.PlasticClass;
    019    import org.apache.tapestry5.services.meta.MetaDataExtractor;
    020    import org.apache.tapestry5.services.meta.MetaWorker;
    021    import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
    022    import org.apache.tapestry5.services.transform.TransformationSupport;
    023
    024    import java.lang.annotation.Annotation;
    025    import java.util.Map;
    026
    027    @SuppressWarnings("unchecked")
    028    public 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    }