1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*******************************************************************************
* Copyright (c) 2006, 2019 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ua.tests.util;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.eclipse.help.internal.entityresolver.LocalEntityResolver;
import org.junit.Assert;
import org.xml.sax.Attributes;
import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
/**
* A utility class for working with XML.
*/
public class XMLUtil extends Assert {
public static void assertXMLEquals(String msg, String s1, String s2) throws Exception {
InputStream in1 = new ByteArrayInputStream(s1.getBytes(StandardCharsets.UTF_8));
InputStream in2 = new ByteArrayInputStream(s2.getBytes(StandardCharsets.UTF_8));
assertXMLEquals(msg, in1, in2);
}
public static void assertXMLEquals(String msg, InputStream in1, InputStream in2) throws Exception {
String s1 = process(in1);
String s2 = process(in2);
assertEquals(msg, s1, s2);
}
public static void assertParseableXML(String s) {
try {
InputStream in1 = new ByteArrayInputStream(s.getBytes(StandardCharsets.UTF_8));
process(in1);
} catch (Exception e) {
fail("Unable to parse source: " + s);
}
}
private static String process(InputStream in) throws Exception {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
Handler handler = new Handler();
parser.parse(in, handler);
return handler.toString();
}
private static class Handler extends DefaultHandler {
private StringBuilder buf = new StringBuilder();
private EntityResolver entityResolver = new LocalEntityResolver();
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
buf.append('<');
buf.append(qName);
List<String> list = new ArrayList<>();
for (int i=0;i<attributes.getLength();++i) {
list.add(attributes.getQName(i));
}
Collections.sort(list);
Iterator<String> iter = list.iterator();
while (iter.hasNext()) {
String name = iter.next();
buf.append(' ');
buf.append(name);
buf.append('=');
buf.append('"');
buf.append(attributes.getValue(name));
buf.append('"');
}
buf.append('>');
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
buf.append('<');
buf.append('/');
buf.append(qName);
buf.append('>');
}
@Override
public void characters(char[] ch, int start, int length) throws SAXException {
buf.append(ch, start, length);
}
/*
* Note: throws clause does not declare IOException due to a bug in
* sun jdk: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6327149
*
* @see org.xml.sax.helpers.DefaultHandler#resolveEntity(java.lang.String, java.lang.String)
*/
@Override
public InputSource resolveEntity(String publicId, String systemId) throws SAXException {
try {
return entityResolver.resolveEntity(publicId, systemId);
} catch (IOException e) {
return new InputSource(new StringReader("")); //$NON-NLS-1$
}
}
@Override
public String toString() {
return buf.toString();
}
}
}
|
