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Java > Open Source Codes > org > apache > servicemix > jbi > jaxp > StringSource


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.servicemix.jbi.jaxp;
18
19 import java.io.ByteArrayInputStream JavaDoc;
20 import java.io.InputStream JavaDoc;
21 import java.io.Reader JavaDoc;
22 import java.io.Serializable JavaDoc;
23 import java.io.StringReader JavaDoc;
24 import java.io.UnsupportedEncodingException JavaDoc;
25
26 import javax.xml.transform.Source JavaDoc;
27 import javax.xml.transform.stream.StreamSource JavaDoc;
28
29 /**
30  * A helper class which provides a JAXP {@link Source} from a String
31  * which can be read as many times as required.
32  *
33  * @version $Revision: 430478 $
34  */
35 public class StringSource extends StreamSource JavaDoc implements Serializable JavaDoc {
36
37     private final String JavaDoc text;
38     private String JavaDoc encoding = "UTF-8";
39
40     public StringSource(String JavaDoc text) {
41         if (text == null) {
42             throw new NullPointerException JavaDoc("text can not be null");
43         }
44         this.text = text;
45     }
46
47     public StringSource(String JavaDoc text, String JavaDoc systemId) {
48         this(text);
49         setSystemId(systemId);
50     }
51
52     public StringSource(String JavaDoc text, String JavaDoc systemId, String JavaDoc encoding) {
53         this.text = text;
54         this.encoding=encoding;
55         setSystemId(systemId);
56     }
57
58     public InputStream JavaDoc getInputStream() {
59         try {
60             return new ByteArrayInputStream JavaDoc(text.getBytes(encoding));
61         } catch (UnsupportedEncodingException JavaDoc e) {
62             throw new RuntimeException JavaDoc(e);
63         }
64     }
65
66     public Reader JavaDoc getReader() {
67         return new StringReader JavaDoc(text);
68     }
69
70     public String JavaDoc toString() {
71         return "StringSource[" + text + "]";
72     }
73
74     public String JavaDoc getText() {
75         return text;
76     }
77
78 }
79
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