1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.utils.threads.logger;
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14 import java.io.DataOutput;
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15 import java.io.DataOutputStream;
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16 import java.io.FileNotFoundException;
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17 import java.io.FileOutputStream;
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18 import java.io.IOException;
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20 public class ThreadLogger implements IThreadLogger {
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22 public static String LOG_FILE = "d:\\threads.log";
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24 public static boolean LOG = false;
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26 static Object loggerCreationLock = new Object();
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27 static ThreadLogger logger = null;
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31 public ThreadLogger() {
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34 FileOutputStream stream = new FileOutputStream(LOG_FILE);
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35 log = new DataOutputStream(stream);
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36 } catch (FileNotFoundException e) {
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37 e.printStackTrace();
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42 public static ThreadLogger getInstance() {
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43 if(logger == null) {
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44 synchronized (loggerCreationLock) {
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46 logger = new ThreadLogger();
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52 public class Task implements ITask {
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59 public Task(String name) {
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61 this.threadId = Thread.currentThread().getId();
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62 this.beginTime = System.nanoTime();
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66 public void finish() {
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67 this.endTime = System.nanoTime();
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68 if(LOG && log != null) {
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73 log.writeLong(threadId);
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74 log.writeLong(beginTime);
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75 log.writeLong(endTime);
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77 } catch(IOException e) {
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78 e.printStackTrace();
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87 public ITask begin(String taskName) {
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88 return new Task(taskName);
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