lttng/org.eclipse.tracecompass.lttng2.ust.core/src/org/eclipse/tracecompass/lttng2/ust/core/trace/LttngUstEventFactory.java

   1 /**********************************************************************
   2  * Copyright (c) 2015 Ericsson and others
   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.lttng2.ust.core.trace;
  11
  12 import org.eclipse.jdt.annotation.NonNull;
  13 import org.eclipse.tracecompass.ctf.core.CTFStrings;
  14 import org.eclipse.tracecompass.ctf.core.event.EventDefinition;
  15 import org.eclipse.tracecompass.ctf.core.event.IEventDeclaration;
  16 import org.eclipse.tracecompass.tmf.core.timestamp.TmfNanoTimestamp;
  17 import org.eclipse.tracecompass.tmf.core.trace.ITmfContext;
  18 import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEvent;
  19 import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEventFactory;
  20 import org.eclipse.tracecompass.tmf.ctf.core.trace.CtfTmfTrace;
  21
  22 /**
  23  * Factory for {@link LttngUstEvent}.
  24  *
  25  * @author Matthew Khouzam
  26  * @author Alexandre Montplaisir
  27  * @since 2.0
  28  */
  29 public class LttngUstEventFactory extends CtfTmfEventFactory {
  30
  31     private static final @NonNull LttngUstEventFactory INSTANCE = new LttngUstEventFactory();
  32
  33     /**
  34      * Private constructor.
  35      */
  36     private LttngUstEventFactory() {
  37         super();
  38     }
  39
  40     public static @NonNull LttngUstEventFactory instance() {
  41         return INSTANCE;
  42     }
  43
  44     @Override
  45     public CtfTmfEvent createEvent(CtfTmfTrace trace, EventDefinition eventDef, String fileName) {
  46         /* Prepare what to pass to CtfTmfEvent's constructor */
  47         final IEventDeclaration eventDecl = eventDef.getDeclaration();
  48         final long ts = eventDef.getTimestamp();
  49         final TmfNanoTimestamp timestamp = trace.createTimestamp(trace.timestampCyclesToNanos(ts));
  50
  51         int sourceCPU = eventDef.getCPU();
  52
  53         String reference = (fileName == null ? NO_STREAM : fileName);
  54
  55         /* Handle the special case of lost events */
  56         if (eventDecl.getName().equals(CTFStrings.LOST_EVENT_NAME)) {
  57             return createLostEvent(trace, eventDef, eventDecl, ts, timestamp, sourceCPU, reference);
  58         }
  59
  60         /* Handle standard event types */
  61         return new LttngUstEvent(trace,
  62                 ITmfContext.UNKNOWN_RANK,
  63                 timestamp,
  64                 reference, // filename
  65                 sourceCPU,
  66                 eventDecl,
  67                 eventDef);
  68     }
  69 }