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
021 import org.apache.camel.component.file.FileEndpoint;
022 import org.apache.camel.component.file.FileExchange;
023 import org.apache.commons.logging.Log;
024 import org.apache.commons.logging.LogFactory;
025
026 /**
027 * A strategy to rename a file
028 *
029 * @version $Revision: 660099 $
030 */
031 public class RenameFileProcessStrategy extends FileProcessStrategySupport {
032 private static final transient Log LOG = LogFactory.getLog(RenameFileProcessStrategy.class);
033 private FileRenamer renamer;
034
035 public RenameFileProcessStrategy() {
036 this(true);
037 }
038
039 public RenameFileProcessStrategy(boolean lock) {
040 this(lock, ".camel/", "");
041 }
042
043 public RenameFileProcessStrategy(boolean lock, String namePrefix, String namePostfix) {
044 this(lock, new DefaultFileRenamer(namePrefix, namePostfix));
045 }
046
047 public RenameFileProcessStrategy(boolean lock, FileRenamer renamer) {
048 super(lock);
049 this.renamer = renamer;
050 }
051
052 @Override
053 public void commit(FileEndpoint endpoint, FileExchange exchange, File file) throws Exception {
054 File newName = renamer.renameFile(file);
055 if (LOG.isDebugEnabled()) {
056 LOG.debug("Renaming file: " + file + " to: " + newName);
057 }
058
059 // deleting any existing files before renaming
060 if (newName.exists()) {
061 newName.delete();
062 }
063
064 // make parent folder if missing
065 newName.getParentFile().mkdirs();
066
067 boolean renamed = file.renameTo(newName);
068 if (!renamed) {
069 LOG.warn("Could not rename file from: " + file + " to " + newName);
070 }
071
072 // must commit to release the lock
073 super.commit(endpoint, exchange, file);
074 }
075
076 public FileRenamer getRenamer() {
077 return renamer;
078 }
079
080 public void setRenamer(FileRenamer renamer) {
081 this.renamer = renamer;
082 }
083 }