/*
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* Copyright (C) 2015 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package benchmarks;
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import com.google.caliper.BeforeExperiment;
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import com.google.caliper.Param;
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import java.io.CharArrayWriter;
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import java.lang.reflect.Constructor;
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import java.util.Random;
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import org.xmlpull.v1.XmlSerializer;
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public class XmlSerializeBenchmark {
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@Param( {"0.99 0.7 0.7 0.7 0.7 0.7",
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"0.999 0.3 0.3 0.95 0.9 0.9"})
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String datasetAsString;
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@Param( { "854328", "312547"} )
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int seed;
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double[] dataset;
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private Constructor<? extends XmlSerializer> kxmlConstructor;
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private Constructor<? extends XmlSerializer> fastConstructor;
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private void serializeRandomXml(Constructor<? extends XmlSerializer> ctor, long seed)
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throws Exception {
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double contChance = dataset[0];
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double levelUpChance = dataset[1];
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double levelDownChance = dataset[2];
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double attributeChance = dataset[3];
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double writeChance1 = dataset[4];
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double writeChance2 = dataset[5];
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XmlSerializer serializer = (XmlSerializer) ctor.newInstance();
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CharArrayWriter w = new CharArrayWriter();
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serializer.setOutput(w);
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int level = 0;
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Random r = new Random(seed);
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char[] toWrite = {'a','b','c','d','s','z'};
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serializer.startDocument("UTF-8", true);
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while(r.nextDouble() < contChance) {
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while(level > 0 && r.nextDouble() < levelUpChance) {
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serializer.endTag("aaaaaa", "bbbbbb");
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level--;
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}
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while(r.nextDouble() < levelDownChance) {
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serializer.startTag("aaaaaa", "bbbbbb");
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level++;
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}
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serializer.startTag("aaaaaa", "bbbbbb");
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level++;
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while(r.nextDouble() < attributeChance) {
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serializer.attribute("aaaaaa", "cccccc", "dddddd");
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}
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serializer.endTag("aaaaaa", "bbbbbb");
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level--;
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while(r.nextDouble() < writeChance1)
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serializer.text(toWrite, 0, 5);
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while(r.nextDouble() < writeChance2)
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serializer.text("Textxtsxtxtxt ");
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}
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serializer.endDocument();
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}
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@SuppressWarnings("unchecked")
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@BeforeExperiment
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protected void setUp() throws Exception {
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kxmlConstructor = (Constructor) Class.forName("com.android.org.kxml2.io.KXmlSerializer")
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.getConstructor();
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fastConstructor = (Constructor) Class.forName("com.android.internal.util.FastXmlSerializer")
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.getConstructor();
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String[] splitted = datasetAsString.split(" ");
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dataset = new double[splitted.length];
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for (int i = 0; i < splitted.length; i++) {
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dataset[i] = Double.parseDouble(splitted[i]);
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}
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}
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private void internalTimeSerializer(Constructor<? extends XmlSerializer> ctor, int reps)
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throws Exception {
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for (int i = 0; i < reps; i++) {
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serializeRandomXml(ctor, seed);
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}
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}
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public void timeKxml(int reps) throws Exception {
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internalTimeSerializer(kxmlConstructor, reps);
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}
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public void timeFast(int reps) throws Exception {
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internalTimeSerializer(fastConstructor, reps);
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}
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}
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