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* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
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package com.sun.tools.visualvm.profiling.snapshot.diff;
import com.sun.tools.visualvm.core.ui.DataSourceWindowManager;
import com.sun.tools.visualvm.core.ui.actions.MultiDataSourceAction;
import com.sun.tools.visualvm.profiling.snapshot.ProfilerSnapshot;
import java.awt.event.ActionEvent;
import java.util.Set;
import org.netbeans.modules.profiler.LoadedSnapshot;
import org.netbeans.modules.profiler.api.ProfilerDialogs;
import org.openide.util.NbBundle;
/**
*
* @author Jiri Sedlacek
*/
final class CompareSnapshotsAction extends MultiDataSourceAction<ProfilerSnapshot> {
private static CompareSnapshotsAction instance;
public static synchronized CompareSnapshotsAction instance() {
if (instance == null) instance = new CompareSnapshotsAction();
return instance;
}
protected void actionPerformed(Set<ProfilerSnapshot> snapshots, ActionEvent actionEvent) {
ProfilerSnapshot[] snapshotsArr = snapshots.toArray(new ProfilerSnapshot[2]);
LoadedSnapshot s1 = snapshotsArr[0].getLoadedSnapshot();
LoadedSnapshot s2 = snapshotsArr[1].getLoadedSnapshot();
// Two memory snapshots of different type (alloc vs. liveness) or different
// getAllocTrackEvery() values can be selected, perform the full check here
if (org.netbeans.modules.profiler.actions.CompareSnapshotsAction.areComparableSnapshots(s2, s1)) {
SnapshotDiffContainer sdc = new SnapshotDiffContainer(
snapshotsArr[0], snapshotsArr[1], snapshotsArr[0].getMaster());
DataSourceWindowManager.sharedInstance().openDataSource(sdc);
} else {
String msg = NbBundle.getMessage(CompareSnapshotsAction.class, "MSG_Not_Comparable"); // NOI18N
ProfilerDialogs.displayError(msg);
}
}
protected boolean isEnabled(Set<ProfilerSnapshot> snapshots) {
// Action is enabled only when exactly 2 profiler snapshots are selected
if (snapshots.size() != 2) return false;
ProfilerSnapshot[] snapshotsArr = snapshots.toArray(new ProfilerSnapshot[2]);
LoadedSnapshot s1 = snapshotsArr[0].getLoadedSnapshot();
LoadedSnapshot s2 = snapshotsArr[1].getLoadedSnapshot();
// Action is enabled only for profiler memory snapshots
// If the snapshots are not comparable (like alloc vs. liveness) a dialog
// is shown after action invocation (actionPerformed())
if ((s1.getType() & LoadedSnapshot.SNAPSHOT_TYPE_MEMORY) == 0 ||
(s2.getType() & LoadedSnapshot.SNAPSHOT_TYPE_MEMORY) == 0) return false;
return true;
}
private CompareSnapshotsAction() {
super(ProfilerSnapshot.class);
putValue(NAME, NbBundle.getMessage(CompareSnapshotsAction.class,
"MSG_Compare_Snapshots")); // NOI18N
putValue(SHORT_DESCRIPTION, NbBundle.getMessage(CompareSnapshotsAction.class,
"DESCR_Compare_Snapshots")); // NOI18N
}
}