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.util.Map; 020 021 import org.apache.camel.Expression; 022 import org.apache.camel.component.file.FileProcessStrategy; 023 024 /** 025 * Factory to provide the {@link org.apache.camel.component.file.FileProcessStrategy} to use. 026 */ 027 public final class FileProcessStrategyFactory { 028 029 private FileProcessStrategyFactory() { 030 // Factory class 031 } 032 033 /** 034 * A strategy method to lazily create the file strategy to use. 035 */ 036 public static FileProcessStrategy createFileProcessStrategy(Map<String, Object> params) { 037 038 // We assume a value is present only if its value not null for String and 'true' for boolean 039 boolean isDelete = params.get("delete") != null; 040 boolean isLock = params.get("lock") != null; 041 String moveNamePrefix = (String) params.get("moveNamePrefix"); 042 String moveNamePostfix = (String) params.get("moveNamePostfix"); 043 Expression expression = (Expression) params.get("expression"); 044 045 if (params.containsKey("noop")) { 046 return new NoOpFileProcessStrategy(isLock); 047 } else if (moveNamePostfix != null || moveNamePrefix != null) { 048 if (isDelete) { 049 throw new IllegalArgumentException("You cannot set the deleteFiles property " 050 + "and a moveFilenamePostfix or moveFilenamePrefix"); 051 } 052 return new RenameFileProcessStrategy(isLock, moveNamePrefix, moveNamePostfix); 053 } else if (expression != null) { 054 FileExpressionRenamer renamer = new FileExpressionRenamer(); 055 renamer.setExpression(expression); 056 057 RenameFileProcessStrategy strategy = new RenameFileProcessStrategy(isLock); 058 strategy.setRenamer(renamer); 059 return strategy; 060 } else if (isDelete) { 061 return new DeleteFileProcessStrategy(isLock); 062 } else { 063 return new RenameFileProcessStrategy(isLock); 064 } 065 } 066 }