lttng/org.eclipse.tracecompass.lttng2.kernel.core/src/org/eclipse/tracecompass/internal/lttng2/kernel/core/analysis/graph/handlers/BaseHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 École Polytechnique de Montréal
   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
  10 package org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.handlers;
  11
  12 import java.util.Collection;
  13 import java.util.HashMap;
  14 import java.util.Map;
  15 import java.util.Set;
  16
  17 import org.eclipse.tracecompass.analysis.graph.core.building.AbstractTraceEventHandler;
  18 import org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.building.LttngKernelExecGraphProvider;
  19 import org.eclipse.tracecompass.internal.lttng2.kernel.core.trace.layout.LttngEventLayout;
  20 import org.eclipse.tracecompass.tmf.core.event.ITmfEvent;
  21 import org.eclipse.tracecompass.tmf.core.event.ITmfEventType;
  22 import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
  23 import org.eclipse.tracecompass.tmf.core.trace.ITmfTraceWithPreDefinedEvents;
  24 import org.eclipse.tracecompass.tmf.core.trace.TmfEventTypeCollectionHelper;
  25 import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager;
  26
  27 /**
  28  * Holds the fields commons to all handler classes.
  29  *
  30  * @author Francis Giraldeau <francis.giraldeau@gmail.com>
  31  *
  32  */
  33 public class BaseHandler extends AbstractTraceEventHandler {
  34
  35     private final LttngKernelExecGraphProvider fProvider;
  36     private Map<ITmfTrace, Boolean> fHasEventSchedTTWU;
  37
  38     BaseHandler(LttngKernelExecGraphProvider provider) {
  39         fProvider = provider;
  40         fHasEventSchedTTWU = new HashMap<>();
  41         ITmfTrace trace = getProvider().getTrace();
  42         LttngEventLayout layout = getProvider().getEventLayout();
  43         Collection<ITmfTrace> traceSet = TmfTraceManager.getTraceSet(trace);
  44         for (ITmfTrace traceItem : traceSet) {
  45             if (traceItem instanceof ITmfTraceWithPreDefinedEvents) {
  46                 Set<? extends ITmfEventType> content = ((ITmfTraceWithPreDefinedEvents) traceItem).getContainedEventTypes();
  47                 Set<String> traceEvents = TmfEventTypeCollectionHelper.getEventNames(content);
  48                 boolean hasEvent = traceEvents.contains(layout.eventSchedProcessTTWU());
  49                 fHasEventSchedTTWU.put(traceItem, hasEvent);
  50             }
  51         }
  52     }
  53
  54     /**
  55      * Returns the parent graph provider
  56      *
  57      * @return the graph provider
  58      */
  59     public LttngKernelExecGraphProvider getProvider() {
  60         return fProvider;
  61     }
  62
  63     /**
  64      * Return if the trace has the try to wake-up event
  65      *
  66      * @param trace
  67      *            the trace to check
  68      * @return if the trace has the try to wake-up event
  69      */
  70     public boolean traceHasEventSchedTTWU(ITmfTrace trace) {
  71         Boolean ret = fHasEventSchedTTWU.get(trace);
  72         if (ret == null) {
  73             return false;
  74         }
  75         return ret;
  76     }
  77
  78     @Override
  79     public void handleEvent(ITmfEvent event) {
  80     }
  81
  82 }