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.impl.converter; 018 019 import java.util.concurrent.Future; 020 021 import org.apache.camel.Exchange; 022 import org.apache.camel.Message; 023 import org.apache.camel.TypeConverter; 024 import org.apache.camel.component.bean.BeanInvocation; 025 import org.apache.camel.component.file.GenericFile; 026 027 /** 028 * A simple converter that can convert any object to a String type by using the 029 * toString() method of the object. 030 * 031 * @version $Revision: 828677 $ 032 */ 033 public class ToStringTypeConverter implements TypeConverter { 034 035 @SuppressWarnings("unchecked") 036 public <T> T convertTo(Class<T> toType, Object value) { 037 if (value != null) { 038 039 // should not try to convert Message 040 if (Message.class.isAssignableFrom(value.getClass())) { 041 return (T) Void.TYPE; 042 } 043 044 // should not try to convert future 045 if (Future.class.isAssignableFrom(value.getClass())) { 046 return (T) Void.TYPE; 047 } 048 049 // should not try to convert bean invocations 050 if (BeanInvocation.class.isAssignableFrom(value.getClass())) { 051 return (T) Void.TYPE; 052 } 053 054 // should not try to convert files 055 if (GenericFile.class.isAssignableFrom(value.getClass())) { 056 return (T) Void.TYPE; 057 } 058 059 if (toType.equals(String.class)) { 060 return (T)value.toString(); 061 } 062 } 063 return null; 064 } 065 066 public <T> T convertTo(Class<T> type, Exchange exchange, Object value) { 067 return convertTo(type, value); 068 } 069 070 public <T> T mandatoryConvertTo(Class<T> type, Object value) { 071 return convertTo(type, value); 072 } 073 074 public <T> T mandatoryConvertTo(Class<T> type, Exchange exchange, Object value) { 075 return convertTo(type, value); 076 } 077 078 }