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/*
* Copyright (C) 2015 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;
import com.google.caliper.BeforeExperiment;
import com.google.caliper.Param;
import java.io.CharArrayWriter;
import java.lang.reflect.Constructor;
import java.util.Random;
import org.xmlpull.v1.XmlSerializer;
public class XmlSerializeBenchmark {
@Param( {"0.99 0.7 0.7 0.7 0.7 0.7",
"0.999 0.3 0.3 0.95 0.9 0.9"})
String datasetAsString;
@Param( { "854328", "312547"} )
int seed;
double[] dataset;
private Constructor<? extends XmlSerializer> kxmlConstructor;
private Constructor<? extends XmlSerializer> fastConstructor;
private void serializeRandomXml(Constructor<? extends XmlSerializer> ctor, long seed)
throws Exception {
double contChance = dataset[0];
double levelUpChance = dataset[1];
double levelDownChance = dataset[2];
double attributeChance = dataset[3];
double writeChance1 = dataset[4];
double writeChance2 = dataset[5];
XmlSerializer serializer = (XmlSerializer) ctor.newInstance();
CharArrayWriter w = new CharArrayWriter();
serializer.setOutput(w);
int level = 0;
Random r = new Random(seed);
char[] toWrite = {'a','b','c','d','s','z'};
serializer.startDocument("UTF-8", true);
while(r.nextDouble() < contChance) {
while(level > 0 && r.nextDouble() < levelUpChance) {
serializer.endTag("aaaaaa", "bbbbbb");
level--;
}
while(r.nextDouble() < levelDownChance) {
serializer.startTag("aaaaaa", "bbbbbb");
level++;
}
serializer.startTag("aaaaaa", "bbbbbb");
level++;
while(r.nextDouble() < attributeChance) {
serializer.attribute("aaaaaa", "cccccc", "dddddd");
}
serializer.endTag("aaaaaa", "bbbbbb");
level--;
while(r.nextDouble() < writeChance1)
serializer.text(toWrite, 0, 5);
while(r.nextDouble() < writeChance2)
serializer.text("Textxtsxtxtxt ");
}
serializer.endDocument();
}
@SuppressWarnings("unchecked")
@BeforeExperiment
protected void setUp() throws Exception {
kxmlConstructor = (Constructor) Class.forName("com.android.org.kxml2.io.KXmlSerializer")
.getConstructor();
fastConstructor = (Constructor) Class.forName("com.android.internal.util.FastXmlSerializer")
.getConstructor();
String[] splitted = datasetAsString.split(" ");
dataset = new double[splitted.length];
for (int i = 0; i < splitted.length; i++) {
dataset[i] = Double.parseDouble(splitted[i]);
}
}
private void internalTimeSerializer(Constructor<? extends XmlSerializer> ctor, int reps)
throws Exception {
for (int i = 0; i < reps; i++) {
serializeRandomXml(ctor, seed);
}
}
public void timeKxml(int reps) throws Exception {
internalTimeSerializer(kxmlConstructor, reps);
}
public void timeFast(int reps) throws Exception {
internalTimeSerializer(fastConstructor, reps);
}
}
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