tmf: Add the verifyHistory test program

Signed-off-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>

1 files changed, 103 insertions, 0 deletions

diff --git a/lttng/org.eclipse.linuxtools.tmf.core.tests/src/org/eclipse/linuxtools/tmf/core/tests/statesystem/VerifyHistoryFile.java b/lttng/org.eclipse.linuxtools.tmf.core.tests/src/org/eclipse/linuxtools/tmf/core/tests/statesystem/VerifyHistoryFile.java
new file mode 100644
index 0000000000..7add8728a4
--- /dev/null
+++ b/lttng/org.eclipse.linuxtools.tmf.core.tests/src/org/eclipse/linuxtools/tmf/core/tests/statesystem/VerifyHistoryFile.java
@@ -0,0 +1,103 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Ericsson
+ *
+ * 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:
+ *   Alexandre Montplaisir - Initial API and implementation
+ ******************************************************************************/
+
+package org.eclipse.linuxtools.tmf.core.tests.statesystem;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+import org.eclipse.linuxtools.internal.tmf.core.statesystem.HistoryBuilder;
+import org.eclipse.linuxtools.internal.tmf.core.statesystem.IStateHistoryBackend;
+import org.eclipse.linuxtools.internal.tmf.core.statesystem.historytree.HistoryTreeBackend;
+import org.eclipse.linuxtools.tmf.core.exceptions.AttributeNotFoundException;
+import org.eclipse.linuxtools.tmf.core.exceptions.TimeRangeException;
+import org.eclipse.linuxtools.tmf.core.interval.ITmfStateInterval;
+import org.eclipse.linuxtools.tmf.core.statesystem.IStateSystemQuerier;
+
+/**
+ * Small program to ensure a history file does not contain any "holes".
+ * Null-state-values are fine, here we're looking for *real* null's that would
+ * trigger NPE's elsewhere in the stack.
+ *
+ * @author alexmont
+ *
+ */
+@SuppressWarnings("nls")
+public class VerifyHistoryFile {
+
+    public final static String pathToHistoryFile = "/home/alexandre/bin/eclipse-4.2/runtime-EclipseApplication/myproject/.tracing/trace2/stateHistory.ht";
+
+    private static File htFile;
+    private static IStateHistoryBackend htBackend;
+    private static IStateSystemQuerier ss;
+
+    private static long startTime;
+    private static long endTime;
+    private static int nbErrors;
+
+    public static void main(String[] args) throws IOException,
+            TimeRangeException, AttributeNotFoundException {
+        htFile = new File(pathToHistoryFile);
+        htBackend = new HistoryTreeBackend(htFile);
+        ss = HistoryBuilder.openExistingHistory(htBackend);
+
+        startTime = ss.getStartTime();
+        endTime = ss.getCurrentEndTime();
+        nbErrors = 0;
+        int total = ss.getNbAttributes();
+
+        System.out.println("Starting check of " + total + " attributes.");
+        for (int i = 0; i < total; i++) {
+            verifyAttribute(i);
+        }
+        System.out.println("Done, total number of errors: " + nbErrors);
+    }
+
+    private static void verifyAttribute(int attribute)
+            throws TimeRangeException, AttributeNotFoundException {
+        List<ITmfStateInterval> intervals;
+
+        System.out.print("Checking attribute " + attribute);
+        System.out.print(' ' + ss.getFullAttributePath(attribute));
+
+        intervals = ss.queryHistoryRange(attribute, startTime, endTime);
+        System.out.println(" (" + intervals.size() + " intervals)");
+
+        /*
+         * Compare the start of the history with the start time of the first
+         * interval
+         */
+        verify(attribute, startTime, intervals.get(0).getStartTime());
+
+        /* Compare the end time of each interval with the start of the next one */
+        for (int i = 0; i < intervals.size() - 1; i++) {
+            verify(attribute, intervals.get(i).getEndTime() + 1,
+                    intervals.get(i + 1).getStartTime());
+        }
+        /*
+         * Compare the end time of the last interval against the end time of the
+         * history
+         */
+        verify(attribute, intervals.get(intervals.size() - 1).getEndTime(),
+                endTime);
+    }
+
+    private static void verify(int a, long t1, long t2) {
+        if (t1 != t2) {
+            nbErrors++;
+            System.err.println("Check failed for attribute " + a + ": " + t1
+                    + " vs " + t2);
+        }
+    }
+
+}