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 */ 017package org.apache.camel.impl; 018 019import java.io.IOException; 020import java.io.InputStream; 021import java.io.OutputStream; 022 023import org.apache.camel.Exchange; 024import org.apache.camel.spi.DataFormat; 025import org.apache.camel.util.ExchangeHelper; 026 027/** 028 * The text based <a href="http://camel.apache.org/data-format.html">data format</a> supporting 029 * charset encoding. 030 * 031 * @version 032 */ 033public class StringDataFormat implements DataFormat { 034 035 private String charset; 036 037 public StringDataFormat() { 038 } 039 040 public StringDataFormat(String charset) { 041 this.charset = charset; 042 } 043 044 public String getCharset() { 045 return charset; 046 } 047 048 public void setCharset(String charset) { 049 this.charset = charset; 050 } 051 052 public void marshal(Exchange exchange, Object graph, OutputStream stream) throws IOException { 053 String text = ExchangeHelper.convertToType(exchange, String.class, graph); 054 055 byte[] bytes; 056 if (charset != null) { 057 bytes = text.getBytes(charset); 058 } else { 059 bytes = text.getBytes(); 060 } 061 stream.write(bytes); 062 } 063 064 public Object unmarshal(Exchange exchange, InputStream stream) throws IOException { 065 byte[] bytes = ExchangeHelper.convertToType(exchange, byte[].class, stream); 066 067 String answer; 068 if (charset != null) { 069 answer = new String(bytes, charset); 070 } else { 071 answer = new String(bytes); 072 } 073 074 return answer; 075 } 076 077}