/sax/tests/saxtests/src/android/sax/ExpatPerformanceTest.java
https://github.com/aizuzi/platform_frameworks_base · Java · 125 lines · 83 code · 15 blank · 27 comment · 5 complexity · 4912283e8bfba8cacac2a49671bcc521 MD5 · raw file
- /*
- * 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 android.sax;
- 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;
- import com.android.frameworks.saxtests.R;
- 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();
- }
- }
- }