| /******************************************************************************* |
| * Copyright (c) 2006, 2015 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.text.tests.performance; |
| |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Random; |
| |
| import org.eclipse.test.performance.PerformanceMeter; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.DefaultLineTracker; |
| import org.eclipse.jface.text.ILineTracker; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextStore; |
| |
| |
| /** |
| * |
| * @since 3.2 |
| */ |
| public abstract class TextStorePerformanceTest extends TextPerformanceTestCase2 { |
| |
| protected static final String FAUST1; |
| protected static final String FAUST100; |
| protected static final String FAUST500; |
| protected static final Map<String, String> LOCAL_FINGERPRINTS= new HashMap<>(); |
| |
| static { |
| String faust; |
| try { |
| faust = FileTool.read(new InputStreamReader(TextStorePerformanceTest.class.getResourceAsStream("faust1.txt"))).toString(); |
| } catch (IOException x) { |
| faust = ""; |
| x.printStackTrace(); |
| } |
| |
| FAUST1 = faust; |
| FAUST100 = faust.substring(0, 100).intern(); |
| FAUST500 = faust.substring(0, 500).intern(); |
| } |
| |
| abstract protected ITextStore createTextStore(); |
| |
| private ITextStore fTextStore; |
| |
| /* |
| * @see org.eclipse.jdt.text.tests.performance.PerformanceTestCase2#getLocalFingerprints() |
| */ |
| @Override |
| protected final Map<String, String> getLocalFingerprints() { |
| return LOCAL_FINGERPRINTS; |
| } |
| |
| @Override |
| protected void setUp() throws Exception { |
| super.setUp(); |
| |
| fTextStore = createTextStore(); |
| } |
| |
| public void measureSet(PerformanceMeter meter) { |
| meter.start(); |
| for (int accumulated = 0; accumulated < 400; accumulated++) |
| fTextStore.set(FAUST1); |
| meter.stop(); |
| } |
| |
| public void measureRepeatedReplace(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| int OFFSET = 12; |
| int REPLACE_LENGTH = FAUST100.length(); |
| meter.start(); |
| for (int times = 0; times < 200000; times++) |
| fTextStore.replace(OFFSET, REPLACE_LENGTH, FAUST100); |
| meter.stop(); |
| } |
| |
| public void measureTypingReplaceInLargeFile(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| int offset = 12; |
| meter.start(); |
| for (int times = 0; times < 9000000; times++) |
| while (offset++ < 400) |
| fTextStore.replace(offset, 0, ";"); |
| meter.stop(); |
| } |
| |
| public void measureTypingReplaceInSmallFile(PerformanceMeter meter) { |
| fTextStore.set(FAUST500); |
| int offset = 12; |
| meter.start(); |
| for (int times = 0; times < 9000000; times++) |
| while (offset++ < 400) |
| fTextStore.replace(offset, 0, ";"); |
| meter.stop(); |
| } |
| |
| public void measureInsertAtStart(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| meter.start(); |
| for (int times = 0; times < 1000; times++) |
| fTextStore.replace(0, 0, FAUST100); |
| meter.stop(); |
| } |
| |
| public void measureInsertAtEnd(PerformanceMeter meter) { |
| fTextStore.set(""); |
| int offset = fTextStore.getLength(); |
| int length = FAUST100.length(); |
| meter.start(); |
| for (int times = 0; times < 3000; times++) { |
| fTextStore.replace(offset, 0, FAUST100); |
| offset += length; |
| } |
| meter.stop(); |
| } |
| |
| public void measureDeleteInsert(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| int OFFSET = 12; |
| int REPLACE_LENGTH = 100; |
| meter.start(); |
| for (int times = 0; times < 1000; times++) |
| // delete phase |
| fTextStore.replace(OFFSET, REPLACE_LENGTH, null); |
| for (int times = 0; times < 1000; times++) |
| // insert phase |
| fTextStore.replace(OFFSET, 0, FAUST100); |
| meter.stop(); |
| } |
| |
| public void measureRandomReplace(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| |
| Random rand = new Random(132498029834234L); |
| int[] indices = new int[1000]; |
| int REPLACE_LENGTH = 100; // chosen to fit in the gap text store size |
| for (int i = 0; i < indices.length; i++) |
| indices[i] = rand.nextInt(FAUST1.length() - REPLACE_LENGTH); |
| char[] replacement = new char[REPLACE_LENGTH]; |
| Arrays.fill(replacement, ' '); |
| String replace = new String(replacement); |
| |
| meter.start(); |
| for (int times = 0; times < 4; times++) |
| for (int i = 0; i < indices.length; i++) { |
| fTextStore.replace(indices[i], REPLACE_LENGTH, null); |
| fTextStore.replace(indices[i], 0, replace); |
| } |
| meter.stop(); |
| } |
| |
| public void measureGetLine(PerformanceMeter meter) throws BadLocationException { |
| fTextStore.set(FAUST1); |
| ILineTracker tracker= new DefaultLineTracker(); |
| tracker.set(FAUST1); |
| int lines = tracker.getNumberOfLines(); |
| meter.start(); |
| for (int times = 0; times < 100; times++) { |
| for (int line = 0; line < lines; line++) { |
| IRegion lineInfo = tracker.getLineInformation(line); |
| fTextStore.get(lineInfo.getOffset(), lineInfo.getLength()); |
| } |
| } |
| meter.stop(); |
| } |
| |
| public void measureGetChar(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| int length = fTextStore.getLength(); |
| meter.start(); |
| for (int times = 0; times < 150; times++) |
| for (int offset = 0; offset < length; offset++) |
| fTextStore.get(offset); |
| meter.stop(); |
| } |
| |
| public void measureGetAll(PerformanceMeter meter) { |
| fTextStore.set(FAUST1); |
| int length = fTextStore.getLength(); |
| meter.start(); |
| for (int times = 0; times < 500; times++) |
| fTextStore.get(0, length); |
| meter.stop(); |
| } |
| } |