org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/handlers/EnableEventOnChannelHandler.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.lttng.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.lttng.ui.views.control.ControlView;
  22 import org.eclipse.linuxtools.lttng.ui.views.control.model.LogLevelType;
  23 import org.eclipse.linuxtools.lttng.ui.views.control.model.TraceLogLevel;
  24 import org.eclipse.linuxtools.lttng.ui.views.control.model.TraceSessionState;
  25 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceChannelComponent;
  26 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceDomainComponent;
  27 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceSessionComponent;
  28 import org.eclipse.ui.IWorkbenchPage;
  29
  30 /**
  31  * <b><u>EnableEventOnChannelHandler</u></b>
  32  * <p>
  33  * Command handler implementation to enable events for a known channel.
  34  * </p>
  35  */
  36 public class EnableEventOnChannelHandler extends BaseEnableEventHandler {
  37
  38     // ------------------------------------------------------------------------
  39     // Attributes
  40     // ------------------------------------------------------------------------
  41     /**
  42      * The channel component the command is to be executed on.
  43      */
  44     private TraceChannelComponent fChannel = null;
  45
  46     // ------------------------------------------------------------------------
  47     // Operations
  48     // ------------------------------------------------------------------------
  49     /*
  50      * (non-Javadoc)
  51      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableEvents(java.util.List, boolean, org.eclipse.core.runtime.IProgressMonitor)
  52      */
  53     @Override
  54     public void enableEvents(List<String> eventNames, boolean isKernel, IProgressMonitor monitor) throws ExecutionException {
  55         fChannel.enableEvents(eventNames, monitor);
  56     }
  57
  58     /*
  59      * (non-Javadoc)
  60      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableSyscalls(org.eclipse.core.runtime.IProgressMonitor)
  61      */
  62     @Override
  63     public void enableSyscalls(IProgressMonitor monitor) throws ExecutionException {
  64         fChannel.enableSyscalls(monitor);
  65     }
  66
  67     /*
  68      * (non-Javadoc)
  69      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableProbe(java.lang.String, java.lang.String, org.eclipse.core.runtime.IProgressMonitor)
  70      */
  71     @Override
  72     public void enableProbe(String eventName, String probe, IProgressMonitor monitor) throws ExecutionException {
  73         fChannel.enableProbe(eventName, probe, monitor);
  74     }
  75
  76     /*
  77      * (non-Javadoc)
  78      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableFunctionProbe(java.lang.String, java.lang.String, org.eclipse.core.runtime.IProgressMonitor)
  79      */
  80     @Override
  81     public void enableFunctionProbe(String eventName, String probe, IProgressMonitor monitor) throws ExecutionException {
  82         fChannel.enableFunctionProbe(eventName, probe, monitor);
  83     }
  84
  85     /*
  86      * (non-Javadoc)
  87      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#enableLogLevel(java.lang.String, org.eclipse.linuxtools.lttng.ui.views.control.model.LogLevelType, org.eclipse.linuxtools.lttng.ui.views.control.model.TraceLogLevel, org.eclipse.core.runtime.IProgressMonitor)
  88      */
  89     @Override
  90     public void enableLogLevel(String eventName, LogLevelType logLevelType, TraceLogLevel level, IProgressMonitor monitor) throws ExecutionException {
  91         fChannel.enableLogLevel(eventName, logLevelType, level, monitor);
  92     }
  93
  94     /*
  95      * (non-Javadoc)
  96      * @see org.eclipse.linuxtools.lttng.ui.views.control.handlers.BaseEnableEventHandler#getDomain()
  97      */
  98     @Override
  99     public TraceDomainComponent getDomain() {
 100         return (TraceDomainComponent) fChannel.getParent();
 101     }
 102
 103     /*
 104      * (non-Javadoc)
 105      * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
 106      */
 107     @Override
 108     public boolean isEnabled() {
 109         // Get workbench page for the Control View
 110         IWorkbenchPage page = getWorkbenchPage();
 111         if (page == null) {
 112             return false;
 113         }
 114
 115         fChannel = 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 = (Object) iterator.next();
 121                 if (element instanceof TraceChannelComponent) {
 122                     // Add only if corresponding TraceSessionComponents is inactive and not destroyed
 123                     TraceChannelComponent channel = (TraceChannelComponent) element;
 124                     TraceSessionComponent session = channel.getSession();
 125                     if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) {
 126                         fChannel = channel;
 127                         fSession = session;
 128                     }
 129                 }
 130             }
 131         }
 132         return fChannel != null;
 133     }
 134
 135 }