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 org.apache.camel.Exchange; 020 import org.apache.camel.Expression; 021 import org.apache.camel.component.file.GenericFile; 022 import org.apache.camel.util.ObjectHelper; 023 024 public class GenericFileExpressionRenamer<T> implements GenericFileRenamer<T> { 025 private Expression expression; 026 027 public GenericFileExpressionRenamer() { 028 } 029 030 public GenericFileExpressionRenamer(Expression expression) { 031 this.expression = expression; 032 } 033 034 public GenericFile<T> renameFile(Exchange exchange, GenericFile<T> file) { 035 ObjectHelper.notNull(expression, "expression"); 036 037 String newName = expression.evaluate(exchange, String.class); 038 039 // make a copy as result and change its file name 040 GenericFile<T> result = file.copyFrom(file); 041 result.changeFileName(newName); 042 return result; 043 } 044 045 public Expression getExpression() { 046 return expression; 047 } 048 049 public void setExpression(Expression expression) { 050 this.expression = expression; 051 } 052 }