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1
7
8 package org.dom4j;
9
10 import junit.textui.TestRunner;
11
12 import java.io.StringReader  ;
13 import java.io.StringWriter ;
14
15 import javax.xml.transform.Transformer ;
16 import javax.xml.transform.TransformerFactory ;
17 import javax.xml.transform.stream.StreamResult ;
18 import javax.xml.transform.stream.StreamSource ;
19
20 import org.dom4j.io.DOMReader;
21 import org.dom4j.io.DOMWriter;
22 import org.dom4j.io.DocumentResult;
23 import org.dom4j.io.DocumentSource;
24 import org.dom4j.io.SAXContentHandler;
25 import org.dom4j.io.SAXReader;
26 import org.dom4j.io.SAXWriter;
27 import org.dom4j.io.XMLWriter;
28
29
35 public class RoundTripTest extends AbstractTestCase {
36 protected String [] testDocuments = {"/xml/test/encode.xml",
37 "/xml/fibo.xml", "/xml/test/schema/personal-prefix.xsd",
38 "/xml/test/soap2.xml", "/xml/test/test_schema.xml"};
39
40 public static void main(String [] args) {
41 TestRunner.run(RoundTripTest.class);
42 }
43
44 public void testTextRoundTrip() throws Exception {
47 for (int i = 0, size = testDocuments.length; i < size; i++) {
48 Document doc = getDocument(testDocuments[i]);
49 roundTripText(doc);
50 }
51 }
52
53 public void testSAXRoundTrip() throws Exception {
54 for (int i = 0, size = testDocuments.length; i < size; i++) {
55 Document doc = getDocument(testDocuments[i]);
56 roundTripSAX(doc);
57 }
58 }
59
60 public void testDOMRoundTrip() throws Exception {
61 for (int i = 0, size = testDocuments.length; i < size; i++) {
62 Document doc = getDocument(testDocuments[i]);
63 roundTripDOM(doc);
64 }
65 }
66
67 public void testJAXPRoundTrip() throws Exception {
68 for (int i = 0, size = testDocuments.length; i < size; i++) {
69 Document doc = getDocument(testDocuments[i]);
70 roundTripJAXP(doc);
71 }
72 }
73
74 public void testFullRoundTrip() throws Exception {
75 for (int i = 0, size = testDocuments.length; i < size; i++) {
76 Document doc = getDocument(testDocuments[i]);
77 roundTripFull(doc);
78 }
79 }
80
81 public void testRoundTrip() throws Exception {
82 Document document = getDocument("/xml/xmlspec.xml");
83
84 Document doc1 = roundTripSAX(document);
86 Document doc2 = roundTripDOM(doc1);
87 Document doc3 = roundTripSAX(doc2);
88 Document doc4 = roundTripText(doc3);
89 Document doc5 = roundTripDOM(doc4);
90
91 assertDocumentsEqual(document, doc5);
93 }
94
95 protected Document roundTripDOM(Document document) throws Exception {
98 DOMWriter domWriter = new DOMWriter();
100 org.w3c.dom.Document domDocument = domWriter.write(document);
101
102 DOMReader domReader = new DOMReader();
104 Document newDocument = domReader.read(domDocument);
105
106 newDocument.setName(document.getName());
108
109 assertDocumentsEqual(document, newDocument);
110
111 return newDocument;
112 }
113
114 protected Document roundTripJAXP(Document document) throws Exception {
115 TransformerFactory factory = TransformerFactory.newInstance();
117 Transformer transformer = factory.newTransformer();
118
119 StringWriter buffer = new StringWriter ();
120 StreamResult streamResult = new StreamResult (buffer);
121 DocumentSource documentSource = new DocumentSource(document);
122
123 transformer.transform(documentSource, streamResult);
124
125 DocumentResult documentResult = new DocumentResult();
127 StreamSource streamSource = new StreamSource (new StringReader (buffer
128 .toString()));
129
130 transformer.transform(streamSource, documentResult);
131
132 Document newDocument = documentResult.getDocument();
133
134 newDocument.setName(document.getName());
136
137 assertDocumentsEqual(document, newDocument);
138
139 return newDocument;
140 }
141
142 protected Document roundTripSAX(Document document) throws Exception {
143 SAXContentHandler contentHandler = new SAXContentHandler();
146 SAXWriter saxWriter = new SAXWriter(contentHandler, contentHandler,
147 contentHandler);
148
149 saxWriter.write(document);
150
151 Document newDocument = contentHandler.getDocument();
152
153 newDocument.setName(document.getName());
155
156 assertDocumentsEqual(document, newDocument);
157
158 return newDocument;
159 }
160
161 protected Document roundTripText(Document document) throws Exception {
162 StringWriter out = new StringWriter ();
163 XMLWriter xmlWriter = new XMLWriter(out);
164
165 xmlWriter.write(document);
166
167 String xml = out.toString();
169
170 StringReader in = new StringReader (xml);
171 SAXReader reader = new SAXReader();
172 Document newDocument = reader.read(in);
173
174 newDocument.setName(document.getName());
176
177 assertDocumentsEqual(document, newDocument);
178
179 return newDocument;
180 }
181
182 protected Document roundTripFull(Document document) throws Exception {
183 Document doc2 = roundTripDOM(document);
184 Document doc3 = roundTripSAX(doc2);
185 Document doc4 = roundTripText(doc3);
186
187 assertDocumentsEqual(document, doc4);
188
189 return doc4;
190 }
191 }
192
193
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