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.jdt.annotation.Nullable;
  14 import org.eclipse.tracecompass.ctf.core.CTFStrings;
  15 import org.eclipse.tracecompass.ctf.core.event.IEventDeclaration;
  16 import org.eclipse.tracecompass.ctf.core.event.IEventDefinition;
  17 import org.eclipse.tracecompass.tmf.core.timestamp.ITmfTimestamp;
  18 import org.eclipse.tracecompass.tmf.core.trace.ITmfContext;
  19 import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEvent;
  20 import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEventFactory;
  21 import org.eclipse.tracecompass.tmf.ctf.core.trace.CtfTmfTrace;
  22
  23 /**
  24  * Factory for {@link LttngUstEvent}.
  25  *
  26  * @author Matthew Khouzam
  27  * @author Alexandre Montplaisir
  28  * @since 2.0
  29  */
  30 public final class LttngUstEventFactory extends CtfTmfEventFactory {
  31
  32     private static final @NonNull LttngUstEventFactory INSTANCE = new LttngUstEventFactory();
  33
  34     /**
  35      * Private constructor.
  36      */
  37     private LttngUstEventFactory() {
  38         super();
  39     }
  40
  41     public static @NonNull LttngUstEventFactory instance() {
  42         return INSTANCE;
  43     }
  44
  45     @Override
  46     public CtfTmfEvent createEvent(CtfTmfTrace trace, IEventDefinition eventDef, @Nullable String fileName) {
  47         /* Prepare what to pass to CtfTmfEvent's constructor */
  48         final IEventDeclaration eventDecl = eventDef.getDeclaration();
  49         final long ts = eventDef.getTimestamp();
  50         final ITmfTimestamp timestamp = trace.createTimestamp(trace.timestampCyclesToNanos(ts));
  51
  52         int sourceCPU = eventDef.getCPU();
  53
  54         String reference = (fileName == null ? NO_STREAM : fileName);
  55
  56         /* Handle the special case of lost events */
  57         if (eventDecl.getName().equals(CTFStrings.LOST_EVENT_NAME)) {
  58             return createLostEvent(trace, eventDef, eventDecl, ts, timestamp, sourceCPU, reference);
  59         }
  60
  61         /* Handle standard event types */
  62         return new LttngUstEvent(trace,
  63                 ITmfContext.UNKNOWN_RANK,
  64                 timestamp,
  65                 reference, // filename
  66                 sourceCPU,
  67                 eventDecl,
  68                 eventDef);
  69     }
  70 }