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 String preMoveNamePrefix = (String) params.get("preMoveNamePrefix"); 044 String preMoveNamePostfix = (String) params.get("preMoveNamePostfix"); 045 Expression expression = (Expression) params.get("expression"); 046 Expression preMoveExpression = (Expression) params.get("preMoveExpression"); 047 boolean move = moveNamePrefix != null || moveNamePostfix != null; 048 boolean preMove = preMoveNamePrefix != null || preMoveNamePostfix != null; 049 050 if (params.containsKey("noop")) { 051 return new NoOpFileProcessStrategy(isLock); 052 } else if (move || preMove) { 053 RenameFileProcessStrategy strategy = new RenameFileProcessStrategy(isLock); 054 if (move) { 055 strategy.setCommitRenamer(new DefaultFileRenamer(moveNamePrefix, moveNamePostfix)); 056 } 057 if (preMove) { 058 strategy.setBeginRenamer(new DefaultFileRenamer(preMoveNamePrefix, preMoveNamePostfix)); 059 } 060 return strategy; 061 } else if (expression != null || preMoveExpression != null) { 062 RenameFileProcessStrategy strategy = new RenameFileProcessStrategy(isLock); 063 if (expression != null) { 064 FileExpressionRenamer renamer = new FileExpressionRenamer(); 065 renamer.setExpression(expression); 066 strategy.setCommitRenamer(renamer); 067 } 068 if (preMoveExpression != null) { 069 FileExpressionRenamer renamer = new FileExpressionRenamer(); 070 renamer.setExpression(preMoveExpression); 071 strategy.setBeginRenamer(renamer); 072 } 073 return strategy; 074 } else if (isDelete) { 075 return new DeleteFileProcessStrategy(isLock); 076 } else { 077 // default strategy will move to .camel subfolder 078 return new RenameFileProcessStrategy(isLock); 079 } 080 } 081 }