lttng/org.eclipse.tracecompass.lttng2.control.ui/src/org/eclipse/tracecompass/internal/lttng2/control/ui/views/handlers/EnableEventOnDomainHandler.java

   1 /**********************************************************************
   2  * Copyright (c) 2012, 2015 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  *   Bernd Hufmann - Initial API and implementation
  11  *   Bernd Hufmann - Updated for support of LTTng Tools 2.1
  12  **********************************************************************/
  13 package org.eclipse.tracecompass.internal.lttng2.control.ui.views.handlers;
  14
  15 import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull;
  16
  17 import java.util.Iterator;
  18 import java.util.List;
  19
  20 import org.eclipse.core.commands.ExecutionException;
  21 import org.eclipse.core.runtime.IProgressMonitor;
  22 import org.eclipse.jface.viewers.ISelection;
  23 import org.eclipse.jface.viewers.StructuredSelection;
  24 import org.eclipse.tracecompass.internal.lttng2.control.core.model.LogLevelType;
  25 import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceLogLevel;
  26 import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceSessionState;
  27 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.ControlView;
  28 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceDomainComponent;
  29 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceSessionComponent;
  30 import org.eclipse.ui.IWorkbenchPage;
  31
  32 /**
  33  * <p>
  34  * Command handler implementation to enable events for a known domain and default channel 'channel0'
  35  * (which will be created if doesn't exist).
  36  * </p>
  37  *
  38  * @author Bernd Hufmann
  39  */
  40 public class EnableEventOnDomainHandler extends BaseEnableEventHandler {
  41
  42     // ------------------------------------------------------------------------
  43     // Operations
  44     // ------------------------------------------------------------------------
  45
  46     @Override
  47     public void enableEvents(CommandParameter param, List<String> eventNames, boolean isKernel, String filterExression, IProgressMonitor monitor) throws ExecutionException {
  48         if (param instanceof DomainCommandParameter) {
  49             ((DomainCommandParameter)param).getDomain().enableEvents(eventNames, filterExression, monitor);
  50         }
  51     }
  52
  53     @Override
  54     public void enableSyscalls(CommandParameter param, IProgressMonitor monitor) throws ExecutionException {
  55         if (param instanceof DomainCommandParameter) {
  56             ((DomainCommandParameter)param).getDomain().enableSyscalls(monitor);
  57         }
  58     }
  59
  60     @Override
  61     public void enableProbe(CommandParameter param, String eventName, boolean isFunction, String probe, IProgressMonitor monitor) throws ExecutionException {
  62         if (param instanceof DomainCommandParameter) {
  63             ((DomainCommandParameter)param).getDomain().enableProbe(eventName, isFunction, probe, monitor);
  64         }
  65     }
  66
  67     @Override
  68     public void enableLogLevel(CommandParameter param, String eventName, LogLevelType logLevelType, TraceLogLevel level, String filterExression, IProgressMonitor monitor) throws ExecutionException {
  69         if (param instanceof DomainCommandParameter) {
  70             ((DomainCommandParameter)param).getDomain().enableLogLevel(eventName, logLevelType, level, filterExression, monitor);
  71         }
  72     }
  73
  74     @Override
  75     public TraceDomainComponent getDomain(CommandParameter param) {
  76         if (param instanceof DomainCommandParameter) {
  77             return ((DomainCommandParameter)param).getDomain();
  78         }
  79         return null;
  80     }
  81
  82     @Override
  83     public boolean isEnabled() {
  84         // Get workbench page for the Control View
  85         IWorkbenchPage page = getWorkbenchPage();
  86         if (page == null) {
  87             return false;
  88         }
  89
  90         TraceDomainComponent domain = null;
  91         TraceSessionComponent session = null;
  92         ISelection selection = page.getSelection(ControlView.ID);
  93         if (selection instanceof StructuredSelection) {
  94             StructuredSelection structered = ((StructuredSelection) selection);
  95             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
  96                 Object element = iterator.next();
  97                 if (element instanceof TraceDomainComponent) {
  98                     // Add only if corresponding TraceSessionComponents is inactive and not destroyed
  99                     TraceDomainComponent tmpDomain = (TraceDomainComponent) element;
 100                     session = tmpDomain.getSession();
 101                     if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) {
 102                         domain = tmpDomain;
 103                     }
 104                 }
 105             }
 106         }
 107
 108         boolean isEnabled = (domain != null);
 109         fLock.lock();
 110         try {
 111             fParam = null;
 112             if(isEnabled) {
 113                 fParam = new DomainCommandParameter(checkNotNull(session), checkNotNull(domain));
 114             }
 115         } finally {
 116             fLock.unlock();
 117         }
 118         return isEnabled;
 119     }
 120 }