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1
25
26 package org.objectweb.petals.util;
27
28 import java.io.BufferedInputStream  ;
29 import java.io.ByteArrayInputStream ;
30 import java.io.StringWriter ;
31 import java.io.UnsupportedEncodingException ;
32 import java.util.Properties ;
33
34 import javax.xml.transform.OutputKeys ;
35 import javax.xml.transform.Result ;
36 import javax.xml.transform.Source ;
37 import javax.xml.transform.Transformer ;
38 import javax.xml.transform.TransformerConfigurationException ;
39 import javax.xml.transform.TransformerFactory ;
40 import javax.xml.transform.TransformerFactoryConfigurationError ;
41 import javax.xml.transform.stream.StreamResult ;
42 import javax.xml.transform.stream.StreamSource ;
43
44
52 public final class SourceHelper {
53
54 private static Transformer transformer;
55
56 private SourceHelper() {
57 }
59
60
66 public static Source createSource(String msg) {
67 StreamSource source = new StreamSource ();
68 try {
69 byte[] msgByte= msg.getBytes("UTF-8");
70 ByteArrayInputStream in = new ByteArrayInputStream (msgByte);
71 source.setInputStream(in);
72 } catch (UnsupportedEncodingException e) {
73 }
75 return source;
76 }
77
78 public static String createString(Source s) throws Exception {
79
80 String result = null;
81
82 if (s != null) {
83
84 if (s instanceof StreamSource ) {
85 StreamSource ss = (StreamSource ) s;
86 if (ss.getInputStream() != null) {
87 if (ss.getInputStream().markSupported()) {
88 ss.getInputStream().reset();
89 }
90 byte[] buf = new byte[ss.getInputStream().available()];
91 BufferedInputStream bis = new BufferedInputStream (ss
92 .getInputStream());
93 bis.read(buf);
94 result = new String (buf);
95 }
96 else if (ss.getReader() != null) {
97 StringBuffer stringBuffer = new StringBuffer ();
98 int readThisTime = 0;
99 char[] cbuf = new char[4096];
100 while (readThisTime != -1) {
101 readThisTime = ss.getReader().read(cbuf, 0, 4096);
102 if (readThisTime!= -1) {
103 stringBuffer.append(cbuf, 0, readThisTime);
104 }
105 }
106 result = stringBuffer.toString();
107 }
108
109 } else {
110
111 StringWriter buffer = new StringWriter ();
112 Result sresult = new StreamResult (buffer);
113 Transformer transform = getTransformer();
114 transform.transform(s, sresult);
115 result = buffer.toString();
116 }
117 }
118
119 return result;
120 }
121 public static Transformer getTransformer()
122 throws TransformerConfigurationException ,
123 TransformerFactoryConfigurationError {
124 if (transformer == null) {
125 transformer = TransformerFactory.newInstance().newTransformer();
126 Properties props = new Properties ();
127 props.put(OutputKeys.OMIT_XML_DECLARATION, "yes");
128 transformer.setOutputProperties(props);
129 }
130 return transformer;
131 }
132
133 }
134 |
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