org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/internal/lttng/ui/views/resources/evProcessor/ResourcesFinishUpdateHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 Ericsson
   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  * Contributors:
  10  *   Alvaro Sanchez-Leon (alvsan09@gmail.com) - Initial API and implementation
  11  *       Michel Dagenais (michel.dagenais@polymtl.ca) - Reference C implementation, used with permission
  12  *******************************************************************************/
  13 package org.eclipse.linuxtools.internal.lttng.ui.views.resources.evProcessor;
  14
  15 import org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent;
  16 import org.eclipse.linuxtools.internal.lttng.core.state.StateStrings.Events;
  17 import org.eclipse.linuxtools.internal.lttng.core.state.evProcessor.ILttngEventProcessor;
  18 import org.eclipse.linuxtools.internal.lttng.core.state.model.LttngTraceState;
  19 import org.eclipse.linuxtools.internal.lttng.ui.TraceDebug;
  20 import org.eclipse.linuxtools.internal.lttng.ui.model.trange.TimeRangeEventResource;
  21
  22 /**
  23  * Creates specific finish state data request
  24  *
  25  * @author alvaro
  26  *
  27  */
  28 public class ResourcesFinishUpdateHandler extends
  29  AbsResourcesTRangeUpdate
  30                 implements ILttngEventProcessor {
  31
  32         public Events getEventHandleType() {
  33                 // No specific event
  34                 return null;
  35         }
  36
  37         @Override
  38         public boolean process(LttngEvent trcEvent, LttngTraceState traceSt) {
  39                 // The end of the last state is unknown since it's beyond the requested time range window. Create this last
  40                 // event to half page after the visible window but not beyond the end of trace
  41                 long endOfTrace = traceSt.getContext().getTraceTimeWindow().getEndTime().getValue();
  42                 long halfWindow = (params.getEndTime() - params.getStartTime()) / 2;
  43
  44                 // End of event common to all resources within the trace for this specific request
  45                 long endOfEvent = params.getEndTime() + halfWindow;
  46                 if (endOfEvent > endOfTrace) {
  47                         endOfEvent = endOfTrace;
  48                 }
  49
  50                 TraceDebug.debug("Number of localResources: " //$NON-NLS-1$
  51                                 + resContainer.readItems().length);
  52
  53                 // for each existing resource
  54                 for (TimeRangeEventResource localResource : resContainer
  55                                 .readItems()) {
  56
  57                         // get the start time
  58                         long stime = localResource.getNext_good_time();
  59
  60                         // Get the resource state mode
  61                         String stateMode = localResource.getStateMode(traceSt);
  62
  63                         // Insert an instance from previous time to end request time with
  64                         // the current state
  65                         makeDraw(traceSt, stime, endOfEvent, localResource, params, stateMode);
  66                 }
  67
  68                 return false;
  69         }
  70
  71 }