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.TraceDomainType;
  25 import org.eclipse.tracecompass.internal.lttng2.control.core.model.ITraceLogLevel;
  26 import org.eclipse.tracecompass.internal.lttng2.control.core.model.LogLevelType;
  27 import org.eclipse.tracecompass.internal.lttng2.control.core.model.TraceSessionState;
  28 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.ControlView;
  29 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceDomainComponent;
  30 import org.eclipse.tracecompass.internal.lttng2.control.ui.views.model.impl.TraceSessionComponent;
  31 import org.eclipse.ui.IWorkbenchPage;
  32
  33 /**
  34  * <p>
  35  * Command handler implementation to enable events for a known domain and default channel 'channel0'
  36  * (which will be created if doesn't exist).
  37  * </p>
  38  *
  39  * @author Bernd Hufmann
  40  */
  41 public class EnableEventOnDomainHandler extends BaseEnableEventHandler {
  42
  43     // ------------------------------------------------------------------------
  44     // Operations
  45     // ------------------------------------------------------------------------
  46
  47     @Override
  48     public void enableEvents(CommandParameter param, List<String> eventNames, TraceDomainType domain, String filterExression, List<String> excludedEvents, IProgressMonitor monitor) throws ExecutionException {
  49         if (param instanceof DomainCommandParameter) {
  50             ((DomainCommandParameter)param).getDomain().enableEvents(eventNames, filterExression, excludedEvents, monitor);
  51         }
  52     }
  53
  54     @Override
  55     public void enableSyscalls(CommandParameter param, List<String> syscallNames, IProgressMonitor monitor) throws ExecutionException {
  56         if (param instanceof DomainCommandParameter) {
  57             ((DomainCommandParameter)param).getDomain().enableSyscalls(syscallNames, monitor);
  58         }
  59     }
  60
  61     @Override
  62     public void enableProbe(CommandParameter param, String eventName, boolean isFunction, String probe, IProgressMonitor monitor) throws ExecutionException {
  63         if (param instanceof DomainCommandParameter) {
  64             ((DomainCommandParameter)param).getDomain().enableProbe(eventName, isFunction, probe, monitor);
  65         }
  66     }
  67
  68     @Override
  69     public void enableLogLevel(CommandParameter param, List<String> eventNames, LogLevelType logLevelType, ITraceLogLevel level, String filterExression, TraceDomainType domain, IProgressMonitor monitor) throws ExecutionException {
  70         if (param instanceof DomainCommandParameter) {
  71             ((DomainCommandParameter)param).getDomain().enableLogLevel(eventNames, logLevelType, level, filterExression, domain, monitor);
  72         }
  73     }
  74
  75     @Override
  76     public TraceDomainComponent getDomain(CommandParameter param) {
  77         if (param instanceof DomainCommandParameter) {
  78             return ((DomainCommandParameter)param).getDomain();
  79         }
  80         return null;
  81     }
  82
  83     @Override
  84     public boolean isEnabled() {
  85         // Get workbench page for the Control View
  86         IWorkbenchPage page = getWorkbenchPage();
  87         if (page == null) {
  88             return false;
  89         }
  90
  91         TraceDomainComponent domain = null;
  92         TraceSessionComponent session = null;
  93         ISelection selection = page.getSelection(ControlView.ID);
  94         if (selection instanceof StructuredSelection) {
  95             StructuredSelection structered = ((StructuredSelection) selection);
  96             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
  97                 Object element = iterator.next();
  98                 if (element instanceof TraceDomainComponent) {
  99                     // Add only if corresponding TraceSessionComponents is inactive and not destroyed
 100                     TraceDomainComponent tmpDomain = (TraceDomainComponent) element;
 101                     session = tmpDomain.getSession();
 102                     if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) {
 103                         domain = tmpDomain;
 104                     }
 105                 }
 106             }
 107         }
 108
 109         boolean isEnabled = (domain != null);
 110         fLock.lock();
 111         try {
 112             fParam = null;
 113             if(isEnabled) {
 114                 fParam = new DomainCommandParameter(checkNotNull(session), checkNotNull(domain));
 115             }
 116         } finally {
 117             fLock.unlock();
 118         }
 119         return isEnabled;
 120     }
 121 }