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/*
* Copyright (C) 2011 Google Inc.
*
* 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 benchmarks.regression;
import com.google.caliper.Param;
import com.google.caliper.SimpleBenchmark;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.xml.sax.InputSource;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
// http://code.google.com/p/android/issues/detail?id=18102
public final class XmlEntitiesBenchmark extends SimpleBenchmark {
@Param({"10", "100", "1000"}) int length;
@Param({"0", "0.5", "1.0"}) float entityFraction;
private XmlPullParserFactory xmlPullParserFactory;
private DocumentBuilderFactory documentBuilderFactory;
/** a string like {@code <doc>&amp;&amp;++</doc>}. */
private String xml;
@Override protected void setUp() throws Exception {
xmlPullParserFactory = XmlPullParserFactory.newInstance();
documentBuilderFactory = DocumentBuilderFactory.newInstance();
StringBuilder xmlBuilder = new StringBuilder();
xmlBuilder.append("<doc>");
for (int i = 0; i < (length * entityFraction); i++) {
xmlBuilder.append("&amp;");
}
while (xmlBuilder.length() < length) {
xmlBuilder.append("+");
}
xmlBuilder.append("</doc>");
xml = xmlBuilder.toString();
}
public void timeXmlParser(int reps) throws Exception {
for (int i = 0; i < reps; i++) {
XmlPullParser parser = xmlPullParserFactory.newPullParser();
parser.setInput(new StringReader(xml));
while (parser.next() != XmlPullParser.END_DOCUMENT) {
}
}
}
public void timeDocumentBuilder(int reps) throws Exception {
for (int i = 0; i < reps; i++) {
DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
documentBuilder.parse(new InputSource(new StringReader(xml)));
}
}
}