tmf: Provide a static method to retrieve state systems

[deliverable/tracecompass.git] / org.eclipse.linuxtools.lttng2.kernel.ui / src / org / eclipse / linuxtools / internal / lttng2 / kernel / ui / views / cpuusage / CpuUsageComposite.java

diff --git a/org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/cpuusage/CpuUsageComposite.java b/org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/cpuusage/CpuUsageComposite.java
index 8a5c5de5aef91030dc23bc3986853fa916e65f59..a56b3f3e83d49e4ad7464eb77b2cf0b2fe64dae2 100644 (file)
--- a/org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/cpuusage/CpuUsageComposite.java
+++ b/org.eclipse.linuxtools.lttng2.kernel.ui/src/org/eclipse/linuxtools/internal/lttng2/kernel/ui/views/cpuusage/CpuUsageComposite.java
@@ -31,6 +31,7 @@ import org.eclipse.linuxtools.statesystem.core.exceptions.StateSystemDisposedExc
 import org.eclipse.linuxtools.statesystem.core.interval.ITmfStateInterval;
 import org.eclipse.linuxtools.statesystem.core.statevalue.ITmfStateValue;
 import org.eclipse.linuxtools.tmf.core.statesystem.TmfStateSystemAnalysisModule;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
 import org.eclipse.linuxtools.tmf.ui.viewers.tree.AbstractTmfTreeViewer;
 import org.eclipse.linuxtools.tmf.ui.viewers.tree.ITmfTreeColumnDataProvider;
 import org.eclipse.linuxtools.tmf.ui.viewers.tree.ITmfTreeViewerEntry;
@@ -260,16 +261,11 @@ public class CpuUsageComposite extends AbstractTmfTreeViewer {
         if (execName != null) {
             return execName;
         }
-        TmfStateSystemAnalysisModule module = getTrace().getAnalysisModuleOfClass(TmfStateSystemAnalysisModule.class, LttngKernelAnalysisModule.ID);
-        if (module == null) {
+        ITmfTrace trace = getTrace();
+        if (trace == null) {
             return tid;
         }
-        /*
-         * Do not schedule the analysis here. It should have been executed when
-         * the CPU usage analysis was executed. If it's not available, there
-         * might be a good reason (disk space?) so don't force it.
-         */
-        ITmfStateSystem kernelSs = module.getStateSystem();
+        ITmfStateSystem kernelSs = TmfStateSystemAnalysisModule.getStateSystem(trace, LttngKernelAnalysisModule.ID);
         if (kernelSs == null) {
             return tid;
         }