| /* |
| * Copyright (C) 2007 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 com.android.unit_tests; |
| |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.LargeTest; |
| import android.util.Log; |
| import android.util.Xml; |
| import org.kxml2.io.KXmlParser; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.DefaultHandler; |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| public class ExpatPerformanceTest extends AndroidTestCase { |
| |
| private static final String TAG = ExpatPerformanceTest.class.getSimpleName(); |
| |
| private byte[] mXmlBytes; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| InputStream in = mContext.getResources().openRawResource(R.raw.youtube); |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| byte[] buffer = new byte[1024]; |
| int length; |
| while ((length = in.read(buffer)) != -1) { |
| out.write(buffer, 0, length); |
| } |
| mXmlBytes = out.toByteArray(); |
| |
| Log.i("***", "File size: " + (mXmlBytes.length / 1024) + "k"); |
| } |
| |
| @LargeTest |
| public void testPerformance() throws Exception { |
| // try { |
| // Debug.startMethodTracing("expat3"); |
| // for (int i = 0; i < 1; i++) { |
| runJavaPullParser(); |
| runSax(); |
| runExpatPullParser(); |
| // } |
| // } finally { |
| // Debug.stopMethodTracing(); |
| // } |
| } |
| |
| private InputStream newInputStream() { |
| return new ByteArrayInputStream(mXmlBytes); |
| } |
| |
| private void runSax() throws IOException, SAXException { |
| long start = System.currentTimeMillis(); |
| Xml.parse(newInputStream(), Xml.Encoding.UTF_8, new DefaultHandler()); |
| long elapsed = System.currentTimeMillis() - start; |
| Log.i(TAG, "expat SAX: " + elapsed + "ms"); |
| } |
| |
| private void runExpatPullParser() throws XmlPullParserException, IOException { |
| long start = System.currentTimeMillis(); |
| XmlPullParser pullParser = Xml.newPullParser(); |
| pullParser.setInput(newInputStream(), "UTF-8"); |
| withPullParser(pullParser); |
| long elapsed = System.currentTimeMillis() - start; |
| Log.i(TAG, "expat pull: " + elapsed + "ms"); |
| } |
| |
| private void runJavaPullParser() throws XmlPullParserException, IOException { |
| XmlPullParser pullParser; |
| long start = System.currentTimeMillis(); |
| pullParser = new KXmlParser(); |
| pullParser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, true); |
| pullParser.setInput(newInputStream(), "UTF-8"); |
| withPullParser(pullParser); |
| long elapsed = System.currentTimeMillis() - start; |
| Log.i(TAG, "java pull parser: " + elapsed + "ms"); |
| } |
| |
| private static void withPullParser(XmlPullParser pullParser) |
| throws IOException, XmlPullParserException { |
| int eventType = pullParser.next(); |
| while (eventType != XmlPullParser.END_DOCUMENT) { |
| switch (eventType) { |
| case XmlPullParser.START_TAG: |
| pullParser.getName(); |
| // int nattrs = pullParser.getAttributeCount(); |
| // for (int i = 0; i < nattrs; ++i) { |
| // pullParser.getAttributeName(i); |
| // pullParser.getAttributeValue(i); |
| // } |
| break; |
| case XmlPullParser.END_TAG: |
| pullParser.getName(); |
| break; |
| case XmlPullParser.TEXT: |
| pullParser.getText(); |
| break; |
| } |
| eventType = pullParser.next(); |
| } |
| } |
| } |