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

   1 /**********************************************************************
   2  * Copyright (c) 2012, 2013 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.linuxtools.internal.lttng2.ui.views.control.handlers;
  14
  15 import java.util.Iterator;
  16 import java.util.List;
  17
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.core.runtime.IProgressMonitor;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.linuxtools.internal.lttng2.core.control.model.LogLevelType;
  23 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceLogLevel;
  24 import org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceSessionState;
  25 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.ControlView;
  26 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent;
  27 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  28 import org.eclipse.ui.IWorkbenchPage;
  29
  30 /**
  31  * <p>
  32  * Command handler implementation to enable events for a known domain and default channel 'channel0'
  33  * (which will be created if doesn't exist).
  34  * </p>
  35  *
  36  * @author Bernd Hufmann
  37  */
  38 public class EnableEventOnDomainHandler extends BaseEnableEventHandler {
  39
  40     // ------------------------------------------------------------------------
  41     // Attributes
  42     // ------------------------------------------------------------------------
  43
  44     // ------------------------------------------------------------------------
  45     // Operations
  46     // ------------------------------------------------------------------------
  47     /*
  48      * (non-Javadoc)
  49      * @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, java.lang.String, org.eclipse.core.runtime.IProgressMonitor)
  50      */
  51     @Override
  52     public void enableEvents(CommandParameter param, List<String> eventNames, boolean isKernel, String filterExression, IProgressMonitor monitor) throws ExecutionException {
  53         if (param instanceof DomainCommandParameter) {
  54             ((DomainCommandParameter)param).getDomain().enableEvents(eventNames, monitor);
  55         }
  56     }
  57
  58     /*
  59      * (non-Javadoc)
  60      * @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)
  61      */
  62     @Override
  63     public void enableSyscalls(CommandParameter param, IProgressMonitor monitor) throws ExecutionException {
  64         if (param instanceof DomainCommandParameter) {
  65             ((DomainCommandParameter)param).getDomain().enableSyscalls(monitor);
  66         }
  67     }
  68
  69     /*
  70      * (non-Javadoc)
  71      * @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)
  72      */
  73     @Override
  74     public void enableProbe(CommandParameter param, String eventName, boolean isFunction, String probe, IProgressMonitor monitor) throws ExecutionException {
  75         if (param instanceof DomainCommandParameter) {
  76             ((DomainCommandParameter)param).getDomain().enableProbe(eventName, isFunction, probe, monitor);
  77         }
  78     }
  79
  80     /*
  81      * (non-Javadoc)
  82      * @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.core.control.model.LogLevelType, org.eclipse.linuxtools.internal.lttng2.core.control.model.TraceLogLevel, java.lang.String, org.eclipse.core.runtime.IProgressMonitor)
  83      */
  84     @Override
  85     public void enableLogLevel(CommandParameter param, String eventName, LogLevelType logLevelType, TraceLogLevel level, String filterExression, IProgressMonitor monitor) throws ExecutionException {
  86         if (param instanceof DomainCommandParameter) {
  87             ((DomainCommandParameter)param).getDomain().enableLogLevel(eventName, logLevelType, level, filterExression, monitor);
  88         }
  89     }
  90
  91     /*
  92      * (non-Javadoc)
  93      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseEnableEventHandler#getDomain(org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.CommandParameter)
  94      */
  95     @Override
  96     public TraceDomainComponent getDomain(CommandParameter param) {
  97         if (param instanceof DomainCommandParameter) {
  98             return ((DomainCommandParameter)param).getDomain();
  99         }
 100         return null;
 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         TraceDomainComponent domain = null;
 116         TraceSessionComponent session = null;
 117         ISelection selection = page.getSelection(ControlView.ID);
 118         if (selection instanceof StructuredSelection) {
 119             StructuredSelection structered = ((StructuredSelection) selection);
 120             for (Iterator<?> iterator = structered.iterator(); iterator.hasNext();) {
 121                 Object element = iterator.next();
 122                 if (element instanceof TraceDomainComponent) {
 123                     // Add only if corresponding TraceSessionComponents is inactive and not destroyed
 124                     TraceDomainComponent tmpDomain = (TraceDomainComponent) element;
 125                     session = tmpDomain.getSession();
 126                     if(session.getSessionState() == TraceSessionState.INACTIVE && !session.isDestroyed()) {
 127                         domain = tmpDomain;
 128                     }
 129                 }
 130             }
 131         }
 132
 133         boolean isEnabled = (domain != null);
 134         fLock.lock();
 135         try {
 136             fParam = null;
 137             if(isEnabled) {
 138                 fParam = new DomainCommandParameter(session, domain);
 139             }
 140         } finally {
 141             fLock.unlock();
 142         }
 143         return isEnabled;
 144     }
 145 }