org.eclipse.linuxtools.tmf.core.tests/src/org/eclipse/linuxtools/tmf/core/tests/statesystem/VerifyHistoryFile.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Alexandre Montplaisir - Initial API and implementation
  11  ******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.core.tests.statesystem;
  14
  15 import java.io.File;
  16 import java.io.IOException;
  17 import java.util.List;
  18
  19 import org.eclipse.linuxtools.internal.tmf.core.statesystem.HistoryBuilder;
  20 import org.eclipse.linuxtools.internal.tmf.core.statesystem.backends.IStateHistoryBackend;
  21 import org.eclipse.linuxtools.internal.tmf.core.statesystem.backends.historytree.HistoryTreeBackend;
  22 import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
  23 import org.eclipse.linuxtools.tmf.core.exceptions.StateSystemDisposedException;
  24 import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
  25 import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
  26 import org.eclipse.linuxtools.tmf.core.statesystem.IStateChangeInput;
  27 import org.eclipse.linuxtools.tmf.core.statesystem.ITmfStateSystem;
  28
  29 /**
  30  * Small program to ensure a history file does not contain any "holes".
  31  * Null-state-values are fine, here we're looking for *real* null's that would
  32  * trigger NPE's elsewhere in the stack.
  33  *
  34  * @author alexmont
  35  */
  36 @SuppressWarnings("javadoc")
  37 public class VerifyHistoryFile {
  38
  39     // Enter the .ht file name to test here
  40     public static final String pathToHistoryFile = "";
  41
  42     private static File htFile;
  43     private static IStateHistoryBackend htBackend;
  44     private static ITmfStateSystem ss;
  45
  46     private static long startTime;
  47     private static long endTime;
  48     private static int nbErrors;
  49
  50     public static void main(String[] args) throws IOException,
  51             TimeRangeException, AttributeNotFoundException,
  52             StateSystemDisposedException {
  53         htFile = new File(pathToHistoryFile);
  54         htBackend = new HistoryTreeBackend(htFile, IStateChangeInput.IGNORE_PROVIDER_VERSION);
  55         ss = HistoryBuilder.openExistingHistory(htBackend);
  56
  57         startTime = ss.getStartTime();
  58         endTime = ss.getCurrentEndTime();
  59         nbErrors = 0;
  60         int total = ss.getNbAttributes();
  61
  62         System.out.println("Starting check of " + total + " attributes.");
  63         for (int i = 0; i < total; i++) {
  64             verifyAttribute(i);
  65         }
  66         System.out.println("Done, total number of errors: " + nbErrors);
  67     }
  68
  69     private static void verifyAttribute(int attribute)
  70             throws TimeRangeException, AttributeNotFoundException,
  71             StateSystemDisposedException {
  72         List<ITmfStateInterval> intervals;
  73
  74         System.out.print("Checking attribute " + attribute);
  75         System.out.print(' ' + ss.getFullAttributePath(attribute));
  76
  77         intervals = ss.queryHistoryRange(attribute, startTime, endTime);
  78         System.out.println(" (" + intervals.size() + " intervals)");
  79
  80         /*
  81          * Compare the start of the history with the start time of the first
  82          * interval
  83          */
  84         verify(attribute, startTime, intervals.get(0).getStartTime());
  85
  86         /* Compare the end time of each interval with the start of the next one */
  87         for (int i = 0; i < intervals.size() - 1; i++) {
  88             verify(attribute, intervals.get(i).getEndTime() + 1,
  89                     intervals.get(i + 1).getStartTime());
  90         }
  91         /*
  92          * Compare the end time of the last interval against the end time of the
  93          * history
  94          */
  95         verify(attribute, intervals.get(intervals.size() - 1).getEndTime(),
  96                 endTime);
  97     }
  98
  99     private static void verify(int a, long t1, long t2) {
 100         if (t1 != t2) {
 101             nbErrors++;
 102             System.err.println("Check failed for attribute " + a + ": " + t1
 103                     + " vs " + t2);
 104         }
 105     }
 106
 107 }