org.eclipse.linuxtools.lttng.core.tests/src/org/eclipse/linuxtools/lttng/core/tests/headless/JniTraceTest.java

   1 package org.eclipse.linuxtools.lttng.core.tests.headless;
   2 /*******************************************************************************
   3  * Copyright (c) 2009 Ericsson
   4  *
   5  * All rights reserved. This program and the accompanying materials are
   6  * made available under the terms of the Eclipse Public License v1.0 which
   7  * accompanies this distribution, and is available at
   8  * http://www.eclipse.org/legal/epl-v10.html
   9  *
  10  * Contributors:
  11  *   William Bourque (wbourque@gmail.com) - Initial API and implementation
  12  *******************************************************************************/
  13
  14 import java.util.ArrayList;
  15 import org.eclipse.linuxtools.lttng.jni.JniEvent;
  16 import org.eclipse.linuxtools.lttng.jni.JniMarkerField;
  17 import org.eclipse.linuxtools.lttng.jni.JniTrace;
  18 import org.eclipse.linuxtools.lttng.jni.common.JniTime;
  19 import org.eclipse.linuxtools.lttng.jni.factory.JniTraceFactory;
  20
  21
  22 @SuppressWarnings("nls")
  23 public class JniTraceTest {
  24
  25     public static void main(String[] args) {
  26
  27         // Path of the trace
  28         final String TRACE_PATH = "/home/william/trace-614601events-nolost-newformat";
  29
  30         // *** Change this to run several time over the same trace
  31         final int NB_OF_PASS = 1;
  32
  33         // *** Change this to true to parse all the events in the trace
  34         //      Otherwise, events are just read
  35         final boolean PARSE_EVENTS = true;
  36
  37
  38         // Work variables
  39         JniTrace tmptrace = null;
  40         JniEvent tmpevent = null;
  41         Long nbEvent = 0L;
  42
  43         try {
  44                 // Get the trace from the Factory...
  45                 //      This assume the path is correct and that the correct version of the lib is installed
  46             tmptrace = JniTraceFactory.getJniTrace(TRACE_PATH, null, false);
  47
  48             // Seek beginning
  49             tmptrace.seekToTime(new JniTime(0L));
  50
  51             // Run up to "NB_OF_PASS" on the same trace
  52             for (int x=0; x<NB_OF_PASS; x++ ){
  53                 tmpevent = tmptrace.readNextEvent();
  54                 nbEvent++;
  55
  56                 while ( tmpevent != null ) {
  57
  58                         // Parse event if asked
  59                         if ( PARSE_EVENTS ) {
  60                                 ArrayList<JniMarkerField> tmpFields = tmpevent.getMarkersMap().get(tmpevent.getEventMarkerId()).getMarkerFieldsArrayList();
  61                                 for ( int pos=0; pos<tmpFields.size(); pos++ ) {
  62                                     @SuppressWarnings("unused")
  63                                                         Object newValue = tmpevent.parseFieldById(pos);
  64
  65                                     // *** Uncomment the following to print the parsed content
  66                                     // Warning : this is VERY intensive
  67                                     //if ( pos == (tmpFields.size() -1) ) {
  68                                     //  tmptrace.printC(tmpevent.getEventPtr().getLibraryId(), tmpFields.get(pos).getField() + ":" + newValue + " ");
  69                                     //} else {
  70                                     //  tmptrace.printlnC(tmpevent.getEventPtr().getLibraryId(), tmpFields.get(pos).getField() + ":" + newValue + " ");
  71                                     //}
  72                                 }
  73                         }
  74
  75                         tmpevent = tmptrace.readNextEvent();
  76                         nbEvent++;
  77                     }
  78             }
  79
  80             System.out.println("NB Events read : " + nbEvent);
  81         }
  82         catch (Exception e) {
  83             e.printStackTrace();
  84         }
  85     }
  86
  87 }