001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *  http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019
020
021package org.apache.xbean.finder;
022
023import java.io.InputStream;
024import java.net.URL;
025import java.util.zip.ZipEntry;
026
027import org.apache.xbean.osgi.bundle.util.BundleResourceFinder;
028import org.apache.xbean.osgi.bundle.util.ResourceDiscoveryFilter;
029import org.osgi.framework.Bundle;
030import org.osgi.service.packageadmin.PackageAdmin;
031
032/**
033 * @version $Rev: 942659 $ $Date: 2010-05-10 07:14:17 +0200 (lun. 10 mai 2010) $
034 */
035public class BundleAnnotationFinder extends AbstractFinder {
036    private final Bundle bundle;
037
038    public BundleAnnotationFinder(PackageAdmin packageAdmin, Bundle bundle) throws Exception {
039        this(packageAdmin, bundle, BundleResourceFinder.FULL_DISCOVERY_FILTER);
040    }
041
042    public BundleAnnotationFinder(PackageAdmin packageAdmin, Bundle bundle, ResourceDiscoveryFilter discoveryFilter) throws Exception {
043        this.bundle = bundle;
044        BundleResourceFinder bundleResourceFinder = new BundleResourceFinder(packageAdmin, bundle, "", ".class", discoveryFilter);
045        bundleResourceFinder.find(new AnnotationFindingCallback());
046    }
047
048    @Override
049    protected URL getResource(String s) {
050        return bundle.getResource(s);
051    }
052
053    @Override
054    protected Class<?> loadClass(String s) throws ClassNotFoundException {
055        return bundle.loadClass(s);
056    }
057
058    private class AnnotationFindingCallback implements BundleResourceFinder.ResourceFinderCallback {
059
060      
061        public void foundInDirectory(Bundle bundle, String baseDir, URL url) throws Exception {
062            InputStream in = url.openStream();
063            try {
064                readClassDef(in);
065            } finally {
066                in.close();
067            }
068        }
069
070       
071        public void foundInJar(Bundle bundle, String jarName, ZipEntry entry, InputStream in) throws Exception {
072            readClassDef(in);
073        }
074    }
075
076}