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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package libcore.xml;
import junit.framework.TestCase;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.SAXParserFactory;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Tests that we both report and retrieve attributes using the appropriate
* names for different combinations of namespaces and namespace prefixes.
*/
public class NamespacedAttributesLookupTest extends TestCase {
private static final String SAX_PROPERTY_NS =
"http://xml.org/sax/features/namespaces";
private static final String SAX_PROPERTY_NS_PREFIXES =
"http://xml.org/sax/features/namespace-prefixes";
private static String xml = "<?xml version='1.0' encoding='UTF-8'?>" +
"<test xmlns='http://foo' xmlns:bar='http://bar' xmlns:baz='http://baz' baz:c='a'>" +
"<b c='w' bar:c='x'/>" +
"<bar:e baz:c='y' bar:c='z'/>" +
"</test>";
public void testNamespace() throws Exception {
List<String> expected = Arrays.asList(
"http://foo,test\n" +
" http://baz,c\n" +
" http://bar+c=null,\n" +
" bar:c=null\n",
"http://foo,b\n" +
" ,c\n" +
" http://bar,c\n" +
" http://bar+c=x,\n" +
" bar:c=x\n",
"http://bar,e\n" +
" http://baz,c\n" +
" http://bar,c\n" +
" http://bar+c=z,\n" +
" bar:c=z\n");
boolean namespace = true;
boolean namespacePrefixes = false;
assertEquals(expected, getStartElements(xml, namespace, namespacePrefixes));
}
public void testNamespacePrefixes() throws Exception {
List<String> expected = Arrays.asList(
"test\n" +
" xmlns\n" +
" xmlns:bar\n" +
" xmlns:baz\n" +
" baz:c\n" +
" http://bar+c=null,\n" +
" bar:c=null\n",
"b\n" +
" c\n" +
" bar:c\n" +
" http://bar+c=null,\n" +
" bar:c=x\n",
"bar:e\n" +
" baz:c\n" +
" bar:c\n" +
" http://bar+c=null,\n" +
" bar:c=z\n");
boolean namespace = false;
boolean namespacePrefixes = true;
assertEquals(expected, getStartElements(xml, namespace, namespacePrefixes));
}
public List<String> getStartElements(String xml, final boolean namespace, boolean namespacePrefixes)
throws Exception {
final List<String> result = new ArrayList<String>();
XMLReader reader = SAXParserFactory.newInstance().newSAXParser().getXMLReader();
reader.setFeature(SAX_PROPERTY_NS, namespace);
reader.setFeature(SAX_PROPERTY_NS_PREFIXES, namespacePrefixes);
reader.setContentHandler(new DefaultHandler() {
@Override public final void startElement(
String uri, String localName, String qName, Attributes attributes) {
StringBuilder serialized = new StringBuilder();
/*
* Only supply the uri+localName or qname depending on whether namespaces are
* enabled. It's an optional parameter and the RI only supplies one or the other.
*/
if (namespace) {
serialized.append(uri).append(",");
serialized.append(localName);
} else {
serialized.append(qName);
}
for (int i = 0; i < attributes.getLength(); i++) {
serialized.append("\n ");
if (namespace) {
serialized.append(attributes.getURI(i)).append(",");
serialized.append(attributes.getLocalName(i));
} else {
serialized.append(attributes.getQName(i));
}
}
serialized.append("\n http://bar+c=")
.append(attributes.getValue("http://bar", "c")).append(",")
.append("\n bar:c=")
.append(attributes.getValue("bar:c"))
.append("\n");
result.add(serialized.toString());
}
});
reader.parse(new InputSource(new StringReader(xml)));
return result;
}
}
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