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.InputStream;
021    import java.io.Reader;
022    import java.io.Serializable;
023    import java.io.StringReader;
024    import java.io.UnsupportedEncodingException;
025    
026    import javax.xml.transform.Source;
027    import javax.xml.transform.stream.StreamSource;
028    
029    /**
030     * A helper class which provides a JAXP {@link Source} from a String
031     * which can be read as many times as required.
032     *
033     * @version $Revision: 523731 $
034     */
035    public class StringSource extends StreamSource implements Serializable {
036    
037        private final String text;
038        private String encoding = "UTF-8";
039    
040        public StringSource(String text) {
041            if (text == null) {
042                throw new NullPointerException("text can not be null");
043            }
044            this.text = text;
045        }
046    
047        public StringSource(String text, String systemId) {
048            this(text);
049            setSystemId(systemId);
050        }
051    
052        public StringSource(String text, String systemId, String encoding) {
053            this.text = text;
054            this.encoding=encoding;
055            setSystemId(systemId);
056        }
057    
058        public InputStream getInputStream() {
059            try {
060                return new ByteArrayInputStream(text.getBytes(encoding));
061            } catch (UnsupportedEncodingException e) {
062                throw new RuntimeException(e);
063            }
064        }
065    
066        public Reader getReader() {
067            return new StringReader(text);
068        }
069    
070        public String toString() {
071            return "StringSource[" + text + "]";
072        }
073    
074        public String getText() {
075            return text;
076        }
077    
078    }