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: 697472 $ 031 */ 032 public class RenameFileProcessStrategy extends FileProcessStrategySupport { 033 private static final transient Log LOG = LogFactory.getLog(RenameFileProcessStrategy.class); 034 private FileRenamer renamer; 035 036 public RenameFileProcessStrategy() { 037 this(true); 038 } 039 040 public RenameFileProcessStrategy(boolean lock) { 041 this(lock, ".camel/", ""); 042 } 043 044 public RenameFileProcessStrategy(boolean lock, String namePrefix, String namePostfix) { 045 this(lock, new DefaultFileRenamer(namePrefix, namePostfix)); 046 } 047 048 public RenameFileProcessStrategy(boolean lock, FileRenamer renamer) { 049 super(lock); 050 this.renamer = renamer; 051 } 052 053 @Override 054 public void commit(FileEndpoint endpoint, FileExchange exchange, File file) throws Exception { 055 File newName = renamer.renameFile(exchange, file); 056 // deleting any existing files before renaming 057 if (newName.exists()) { 058 newName.delete(); 059 } 060 061 // make parent folder if missing 062 newName.getParentFile().mkdirs(); 063 064 if (LOG.isDebugEnabled()) { 065 LOG.debug("Renaming file: " + file + " to: " + newName); 066 } 067 boolean renamed = file.renameTo(newName); 068 if (!renamed) { 069 throw new IOException("Can 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 }