001    /*
002     * Copyright 2005 The Apache Software Foundation.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     * 
008     *      http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.vafer.jdeb.mapping;
017    
018    import org.apache.tools.tar.TarEntry;
019    import org.vafer.jdeb.utils.Utils;
020    
021    /**
022     * Just adds a prefix to the entry coming in
023     *  
024     * @author Torsten Curdt <tcurdt@vafer.org>
025     */
026    public final class PrefixMapper implements Mapper {
027    
028            private final int strip;
029            private final String prefix;
030            
031            public PrefixMapper( final int pStrip, final String pPrefix ) {
032                    strip = pStrip;
033                    prefix = pPrefix;
034            }
035                    
036            public TarEntry map( final TarEntry pEntry ) {
037                    
038                    final String name = pEntry.getName();
039    
040                    final TarEntry newEntry = new TarEntry(prefix + '/' + Utils.stripPath(strip, name));            
041                    
042                    newEntry.setUserId(pEntry.getUserId());
043                    newEntry.setGroupId(pEntry.getGroupId());
044                    newEntry.setUserName(pEntry.getUserName());
045                    newEntry.setGroupName(pEntry.getGroupName());
046                    newEntry.setMode(pEntry.getMode());
047                    newEntry.setSize(pEntry.getSize());
048    
049                    return newEntry;
050            }
051    
052    }