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

   1 /**********************************************************************
   2  * Copyright (c) 2012 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  **********************************************************************/
  12 package org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers;
  13
  14 import java.util.Iterator;
  15 import java.util.List;
  16
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.runtime.IProgressMonitor;
  19 import org.eclipse.jface.viewers.ISelection;
  20 import org.eclipse.jface.viewers.StructuredSelection;
  21 import org.eclipse.linuxtools.internal.lttng2.core.control.model.LogLevelType;
  22 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceLogLevel;
  23 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState;
  24 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView;
  25 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent;
  26 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  27 import org.eclipse.ui.IWorkbenchPage;
  28
  29 /**
  30  * <p>
  31  * Command handler implementation to enable events for a known domain and default channel 'channel0'
  32  * (which will be created if doesn't exist).
  33  * </p>
  34  *
  35  * @author Bernd Hufmann
  36  */
  37 public class EnableEventOnDomainHandler extends BaseEnableEventHandler {
  38
  39     // ------------------------------------------------------------------------
  40     // Attributes
  41     // ------------------------------------------------------------------------
  42
  43     // ------------------------------------------------------------------------
  44     // Operations
  45     // ------------------------------------------------------------------------
  46     /*
  47      * (non-Javadoc)
  48      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#enableEvents(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter, java.util.List, boolean, org.eclipse.core.runtime.IProgressMonitor)
  49      */
  50     @Override
  51     public void enableEvents(CommandParameter param, List<String> eventNames, boolean isKernel, IProgressMonitor monitor) throws ExecutionException {
  52         if (param instanceof DomainCommandParameter) {
  53             ((DomainCommandParameter)param).getDomain().enableEvents(eventNames, monitor);
  54         }
  55     }
  56
  57     /*
  58      * (non-Javadoc)
  59      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#enableSyscalls(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter, org.eclipse.core.runtime.IProgressMonitor)
  60      */
  61     @Override
  62     public void enableSyscalls(CommandParameter param, IProgressMonitor monitor) throws ExecutionException {
  63         if (param instanceof DomainCommandParameter) {
  64             ((DomainCommandParameter)param).getDomain().enableSyscalls(monitor);
  65         }
  66     }
  67
  68     /*
  69      * (non-Javadoc)
  70      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#enableProbe(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter, java.lang.String, boolean, java.lang.String, org.eclipse.core.runtime.IProgressMonitor)
  71      */
  72     @Override
  73     public void enableProbe(CommandParameter param, String eventName, boolean isFunction, String probe, IProgressMonitor monitor) throws ExecutionException {
  74         if (param instanceof DomainCommandParameter) {
  75             ((DomainCommandParameter)param).getDomain().enableProbe(eventName, isFunction, probe, monitor);
  76         }
  77     }
  78
  79     /*
  80      * (non-Javadoc)
  81      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#enableLogLevel(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter, java.lang.String, org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.LogLevelType, org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.TraceLogLevel, org.eclipse.core.runtime.IProgressMonitor)
  82      */
  83     @Override
  84     public void enableLogLevel(CommandParameter param, String eventName, LogLevelType logLevelType, TraceLogLevel level, IProgressMonitor monitor) throws ExecutionException {
  85         if (param instanceof DomainCommandParameter) {
  86             ((DomainCommandParameter)param).getDomain().enableLogLevel(eventName, logLevelType, level, monitor);
  87         }
  88     }
  89
  90     /*
  91      * (non-Javadoc)
  92      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#getDomain(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter)
  93      */
  94     @Override
  95     public TraceDomainComponent getDomain(CommandParameter param) {
  96         if (param instanceof DomainCommandParameter) {
  97             return ((DomainCommandParameter)param).getDomain();
  98         }
  99         return null;
 100     }
 101
 102     /*
 103      * (non-Javadoc)
 104      * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
 105      */
 106     @Override
 107     public boolean isEnabled() {
 108         // Get workbench page for the Control View
 109         IWorkbenchPage page = getWorkbenchPage();
 110         if (page == null) {
 111             return false;
 112         }
 113
 114         TraceDomainComponent domain = null;
 115         TraceSessionComponent session = null;
 116         ISelection selection = page.getSelection(ControlView.ID);
 117         if (selection instanceof StructuredSelection) {
 118             StructuredSelection structered = ((StructuredSelection) selection);
 119             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
 120                 Object element = iterator.next();
 121                 if (element instanceof TraceDomainComponent) {
 122                     // Add only if corresponding TraceSessionComponents is inactive and not destroyed
 123                     TraceDomainComponent tmpDomain = (TraceDomainComponent) element;
 124                     session = tmpDomain.getSession();
 125                     if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) {
 126                         domain = tmpDomain;
 127                     }
 128                 }
 129             }
 130         }
 131
 132         boolean isEnabled = (domain != null);
 133         fLock.lock();
 134         try {
 135             fParam = null;
 136             if(isEnabled) {
 137                 fParam = new DomainCommandParameter(session, domain);
 138             }
 139         } finally {
 140             fLock.unlock();
 141         }
 142         return isEnabled;
 143     }
 144 }