org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/statistics/evProcessor/StatsTimeCountHandlerFactory.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  *   Yann N. Dauphin     (dhaemon@gmail.com)  - Implementation for stats
  11  *   Alvaro Sanchez-Leon (alvsan09@gmail.com) - Initial API and implementation
  12  *******************************************************************************/
  13 package org.eclipse.linuxtools.lttng.ui.views.statistics.evProcessor;
  14
  15 import java.util.HashMap;
  16 import java.util.Map;
  17
  18 import org.eclipse.linuxtools.lttng.state.StateStrings;
  19 import org.eclipse.linuxtools.lttng.state.evProcessor.AbsEventProcessorFactory;
  20 import org.eclipse.linuxtools.lttng.state.evProcessor.IEventProcessing;
  21
  22 /**
  23  * Provide the handlers that will count the CPU Time, Cumulative CPU Time and
  24  * Elapsed Time and update the appropriate tree.
  25  *
  26  * Builds a Map from string event name to a processing handler object, the
  27  * processors implement the same interface to facilitate transparent methods
  28  * call,
  29  *
  30  * The map key STring is the entry point of the raw events, using a hash speeds
  31  * up the resolution of the appropriate processor
  32  *
  33  * @author alvaro
  34  *
  35  */
  36 public class StatsTimeCountHandlerFactory extends AbsEventProcessorFactory{
  37         // ========================================================================
  38         // Data
  39         // =======================================================================
  40         private final Map<String, IEventProcessing> eventNametoBeforeProcessor = new HashMap<String, IEventProcessing>();
  41         private final Map<String, IEventProcessing> eventNametoAfterProcessor = new HashMap<String, IEventProcessing>();
  42         private static StatsTimeCountHandlerFactory instance = null;
  43         private StatsTimeCountHandlers instantiateHandler = new StatsTimeCountHandlers();
  44
  45         // ========================================================================
  46         // Constructors
  47         // =======================================================================
  48         private StatsTimeCountHandlerFactory() {
  49                 //create one instance of each individual event handler and add the instance to the map
  50                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_SYSCALL_ENTRY
  51                                 .getInName(), instantiateHandler.getSyscallEntryBeforeHandler());
  52
  53                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_SYSCALL_EXIT
  54                                 .getInName(), instantiateHandler.getsySyscallExitBeforeHandler());
  55
  56                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_TRAP_ENTRY
  57                                 .getInName(), instantiateHandler.getTrapEntryBeforeHandler());
  58
  59                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_TRAP_EXIT
  60                                 .getInName(), instantiateHandler.getTrapExitBeforeHandler());
  61
  62                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_PAGE_FAULT_ENTRY
  63                                 .getInName(), instantiateHandler.getTrapEntryBeforeHandler());
  64
  65                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_PAGE_FAULT_EXIT
  66                                 .getInName(), instantiateHandler.getTrapExitBeforeHandler());
  67
  68                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY
  69                                 .getInName(), instantiateHandler.getTrapEntryBeforeHandler());
  70
  71                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_PAGE_FAULT_NOSEM_EXIT
  72                                 .getInName(), instantiateHandler.getTrapExitBeforeHandler());
  73
  74                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_IRQ_ENTRY
  75                                 .getInName(), instantiateHandler.getIrqEntryBeforeHandler());
  76
  77                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_IRQ_EXIT
  78                                 .getInName(), instantiateHandler.getIrqExitBeforeHandler());
  79
  80                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_SOFT_IRQ_ENTRY
  81                                 .getInName(), instantiateHandler.getSoftIrqEntryBeforeHandler());
  82
  83                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_SOFT_IRQ_EXIT
  84                                 .getInName(), instantiateHandler.getSoftIrqExitBeforeHandler());
  85
  86                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_FUNCTION_ENTRY
  87                                 .getInName(), instantiateHandler.getFunctionEntryBeforeHandler());
  88
  89                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_FUNCTION_EXIT
  90                                 .getInName(), instantiateHandler.getFunctionExitBeforeHandler());
  91
  92                 eventNametoBeforeProcessor.put(StateStrings.Events.LTT_EVENT_SCHED_SCHEDULE
  93                                 .getInName(), instantiateHandler.getSchedChangeBeforeHandler());
  94
  95                 eventNametoAfterProcessor.put(StateStrings.Events.LTT_EVENT_SCHED_SCHEDULE
  96                                 .getInName(), instantiateHandler.getSchedChangeAfterHandler());
  97
  98         }
  99
 100         // ========================================================================
 101         // Public methods
 102         // =======================================================================
 103         /**
 104          * The event processors are common to all traces an multiple instances will
 105          * use more memory unnecessarily
 106          *
 107          * @return
 108          */
 109         public static AbsEventProcessorFactory getInstance() {
 110                 if (instance == null) {
 111                         instance = new StatsTimeCountHandlerFactory();
 112                 }
 113                 return instance;
 114         }
 115
 116
 117         @Override
 118         public IEventProcessing getAfterProcessor(String eventType) {
 119                 return eventNametoAfterProcessor.get(eventType);
 120         }
 121
 122         @Override
 123         public IEventProcessing getBeforeProcessor(String eventType) {
 124                 return eventNametoBeforeProcessor.get(eventType);
 125         }
 126
 127         @Override
 128         public IEventProcessing getfinishProcessor() {
 129                 // No finishing processor used
 130                 return null;
 131         }
 132 }