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     */
017    package org.apache.camel.component.file.strategy;
018    
019    import java.io.File;
020    import java.io.IOException;
021    
022    import org.apache.camel.component.file.FileEndpoint;
023    import org.apache.camel.component.file.FileExchange;
024    import org.apache.commons.logging.Log;
025    import org.apache.commons.logging.LogFactory;
026    
027    /**
028     * A strategy to rename a file
029     * 
030     * @version $Revision: 1.1 $
031     */
032    public class RenameFileStrategy extends FileStategySupport {
033        private static final transient Log LOG = LogFactory.getLog(RenameFileStrategy.class);
034    
035        private String namePrefix;
036        private String namePostfix;
037    
038        public RenameFileStrategy() {
039            this(true);
040        }
041    
042        public RenameFileStrategy(boolean lock) {
043            this(lock, ".camel/", "");
044        }
045    
046        public RenameFileStrategy(boolean lock, String namePrefix, String namePostfix) {
047            super(lock);
048            if (namePrefix != null) {
049                this.namePrefix = namePrefix;
050            }
051            if (namePostfix != null) {
052                this.namePostfix = namePostfix;
053            }
054        }
055    
056        public void commit(FileEndpoint endpoint, FileExchange exchange, File file) throws Exception {
057            File parent = file.getParentFile();
058            String name = getNamePrefix() + file.getName() + getNamePostfix();
059            File newName = new File(parent, name);
060            newName.getParentFile().mkdirs();
061    
062            if (LOG.isDebugEnabled()) {
063                LOG.debug("Renaming file: " + file + " to: " + newName);
064            }
065            boolean renamed = file.renameTo(newName);
066            if (!renamed) {
067                throw new IOException("Could not rename file from: " + file + " to " + newName);
068            }
069            super.commit(endpoint, exchange, file);
070        }
071    
072        public String getNamePostfix() {
073            return namePostfix;
074        }
075    
076        /**
077         * Sets the name postfix appended to moved files. For example
078         * to rename all the files from * to *.done set this value to ".done"
079         */
080        public void setNamePostfix(String namePostfix) {
081            this.namePostfix = namePostfix;
082        }
083    
084        public String getNamePrefix() {
085            return namePrefix;
086        }
087    
088        /**
089         * Sets the name prefix appended to moved files. For example
090         * to move processed files into a hidden directory called ".camel"
091         * set this value to ".camel/"
092         */
093        public void setNamePrefix(String namePrefix) {
094            this.namePrefix = namePrefix;
095        }
096    }