tmf: Fix reload of the same trace for statistics

Fixes bug 387639

Avoids deleting the statistics tree if the global request gets
canceled.

Change-Id: I596930b2b08ea796bd82c920d836c90a86cafe09
Signed-off-by: Mathieu Denis <mathieu.denis@polymtl.ca>
Reviewed-on: https://git.eclipse.org/r/7308
Reviewed-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
IP-Clean: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Tested-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Tested-by: Bernd Hufmann <bhufmann@gmail.com>
IP-Clean: Bernd Hufmann <bhufmann@gmail.com>
Reviewed-by: Bernd Hufmann <bhufmann@gmail.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/viewers/statistics/TmfStatisticsViewer.java b/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/viewers/statistics/TmfStatisticsViewer.java
index 54f4e89..ba4b9c3 100644
--- a/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/viewers/statistics/TmfStatisticsViewer.java
+++ b/lttng/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/viewers/statistics/TmfStatisticsViewer.java
@@ -563,13 +563,9 @@ public class TmfStatisticsViewer extends TmfViewer {
     protected void modelIncomplete(boolean isGlobalRequest) {
         if (isGlobalRequest) {  // Clean the global statistics
             /*
-             * The data is invalid and shall be removed to refresh upon next
-             * selection
+             * No need to reset the global number of events, since the index of
+             * the last requested event is known.
              */
-            Object input = getInput();
-            if (input instanceof TmfStatisticsTreeNode) {
-                TmfStatisticsTreeRootFactory.removeStatTreeRoot(getTreeID());
-            }
             resetUpdateSynchronization();
             sendPendingUpdate();
         } else {    // Clean the partial statistics