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.FileExchange;
022    
023    /**
024     * Camel default file renamer.
025     *
026     * @version $Revision: 47012 $
027     */
028    public class DefaultFileRenamer implements FileRenamer {
029    
030        private static final boolean ON_WINDOWS = System.getProperty("os.name").startsWith("Windows");
031    
032        private String namePrefix;
033        private String namePostfix;
034    
035        public DefaultFileRenamer() {
036        }
037    
038        public DefaultFileRenamer(String namePrefix, String namePostfix) {
039            this.namePrefix = namePrefix;
040            this.namePostfix = namePostfix;
041        }
042    
043        public File renameFile(FileExchange exchange, File file) {
044            File parent = file.getParentFile();
045            String name = renameFileName(file);
046    
047            if (ON_WINDOWS && (name.indexOf(":") >= 0 || name.startsWith("//"))) {
048                return new File(name);
049            }
050            return new File(parent, name);
051        }
052    
053        public String getNamePostfix() {
054            return namePostfix;
055        }
056    
057        /**
058         * Sets the name postfix appended to moved files. For example
059         * to rename all the files from * to *.done set this value to ".done"
060         */
061        public void setNamePostfix(String namePostfix) {
062            this.namePostfix = namePostfix;
063        }
064    
065        public String getNamePrefix() {
066            return namePrefix;
067        }
068    
069        /**
070         * Sets the name prefix appended to moved files. For example
071         * to move processed files into a hidden directory called ".camel"
072         * set this value to ".camel/"
073         */
074        public void setNamePrefix(String namePrefix) {
075            this.namePrefix = namePrefix;
076        }
077    
078        protected String renameFileName(File file) {
079            StringBuffer buffer = new StringBuffer();
080            if (namePrefix != null) {
081                buffer.append(namePrefix);
082            }
083            buffer.append(file.getName());
084            if (namePostfix != null) {
085                buffer.append(namePostfix);
086            }
087            return buffer.toString();
088        }
089    }