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.converter.jaxp; 018 019 import java.io.ByteArrayInputStream; 020 import java.io.Externalizable; 021 import java.io.IOException; 022 import java.io.InputStream; 023 import java.io.ObjectInput; 024 import java.io.ObjectOutput; 025 import java.io.Reader; 026 import java.io.StringReader; 027 import java.io.UnsupportedEncodingException; 028 029 import javax.xml.transform.stream.StreamSource; 030 031 /** 032 * A helper class which provides a JAXP {@link javax.xml.transform.Source Source} from a String which can 033 * be read as many times as required. 034 * 035 * @version $Revision: 42987 $ 036 */ 037 public class StringSource extends StreamSource implements Externalizable { 038 private String text; 039 private String encoding = "UTF-8"; 040 041 public StringSource() { 042 } 043 044 public StringSource(String text) { 045 if (text == null) { 046 throw new NullPointerException("text can not be null"); 047 } 048 this.text = text; 049 } 050 051 public StringSource(String text, String systemId) { 052 this(text); 053 setSystemId(systemId); 054 } 055 056 public StringSource(String text, String systemId, String encoding) { 057 this.text = text; 058 this.encoding = encoding; 059 setSystemId(systemId); 060 } 061 062 public InputStream getInputStream() { 063 try { 064 return new ByteArrayInputStream(text.getBytes(encoding)); 065 } catch (UnsupportedEncodingException e) { 066 throw new RuntimeException(e); 067 } 068 } 069 070 public Reader getReader() { 071 return new StringReader(text); 072 } 073 074 public String toString() { 075 return "StringSource[" + text + "]"; 076 } 077 078 public String getText() { 079 return text; 080 } 081 082 public String getEncoding() { 083 return encoding; 084 } 085 086 public void setEncoding(String encoding) { 087 this.encoding = encoding; 088 } 089 090 public void setText(String text) { 091 this.text = text; 092 } 093 094 public void writeExternal(ObjectOutput out) throws IOException { 095 out.writeUTF(text); 096 out.writeUTF(encoding); 097 out.writeUTF(getPublicId()); 098 out.writeUTF(getSystemId()); 099 } 100 101 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { 102 text = in.readUTF(); 103 encoding = in.readUTF(); 104 setPublicId(in.readUTF()); 105 setSystemId(in.readUTF()); 106 } 107 }