001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 */
017package org.apache.xbean.finder.archive;
018
019import java.io.IOException;
020import java.io.InputStream;
021import java.util.Iterator;
022
023/**
024* @version $Rev$ $Date$
025*/
026public class ArchiveIterator implements Iterator<Archive.Entry> {
027    private final Iterator<String> classes;
028    private final Archive archive;
029
030    public ArchiveIterator(Archive archive, Iterator<String> classes) {
031        this.archive = archive;
032        this.classes = classes;
033    }
034
035    public boolean hasNext() {
036        return classes.hasNext();
037    }
038
039    public Archive.Entry next() {
040        final String name = classes.next();
041        return new Archive.Entry() {
042            public String getName() {
043                return name;
044            }
045
046            public InputStream getBytecode() throws IOException {
047                try {
048                    return archive.getBytecode(name);
049                } catch (ClassNotFoundException e) {
050                    throw new IOException(e);
051                }
052            }
053        };
054    }
055
056    public void remove() {
057        classes.remove();
058    }
059}