org.eclipse.linuxtools.lttng2.control.ui/src/org/eclipse/linuxtools/internal/lttng2/control/ui/views/model/impl/TraceSessionGroup.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.control.ui.views.model.impl;
  14
  15 import org.eclipse.core.commands.ExecutionException;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.NullProgressMonitor;
  18 import org.eclipse.linuxtools.internal.lttng2.control.core.model.ISessionInfo;
  19 import org.eclipse.linuxtools.internal.lttng2.control.ui.views.model.ITraceControlComponent;
  20
  21 /**
  22  * <p>
  23  * Implementation of the trace session group.
  24  * </p>
  25  *
  26  * @author Bernd Hufmann
  27  */
  28 public class TraceSessionGroup extends TraceControlComponent {
  29     // ------------------------------------------------------------------------
  30     // Constants
  31     // ------------------------------------------------------------------------
  32     /**
  33      * Path to icon file for this component.
  34      */
  35     public static final String TRACE_SESSIONS_ICON_FILE = "icons/obj16/sessions.gif"; //$NON-NLS-1$
  36
  37     // ------------------------------------------------------------------------
  38     // Attributes
  39     // ------------------------------------------------------------------------
  40
  41     // ------------------------------------------------------------------------
  42     // Constructors
  43     // ------------------------------------------------------------------------
  44     /**
  45      * Constructor
  46      * @param name - the name of the component.
  47      * @param parent - the parent of this component.
  48      */
  49     public TraceSessionGroup(String name, ITraceControlComponent parent) {
  50         super(name, parent);
  51         setImage(TRACE_SESSIONS_ICON_FILE);
  52     }
  53
  54     // ------------------------------------------------------------------------
  55     // Accessors
  56     // ------------------------------------------------------------------------
  57
  58     /**
  59      * @return the parent target node
  60      */
  61     public TargetNodeComponent getTargetNode() {
  62         return (TargetNodeComponent)getParent();
  63     }
  64
  65     /**
  66      * Returns if node supports networks streaming or not
  67      * @return <code>true</code> if node supports filtering else <code>false</code>
  68      */
  69     public boolean isNetworkStreamingSupported() {
  70         return getTargetNode().isNetworkStreamingSupported();
  71     }
  72     /**
  73      * Returns if node supports snapshots or not
  74      * @return <code>true</code> if it supports snapshots else <code>false</code>
  75      *
  76      */    public boolean isSnapshotSupported() {
  77         return getTargetNode().isSnapshotSupported();
  78     }
  79
  80     // ------------------------------------------------------------------------
  81     // Operations
  82     // ------------------------------------------------------------------------
  83     /**
  84      * Retrieves the sessions information from the node.
  85      *
  86      * @throws ExecutionException
  87      *             If the command fails
  88      */
  89     public void getSessionsFromNode() throws ExecutionException {
  90         getSessionsFromNode(new NullProgressMonitor());
  91     }
  92
  93     /**
  94      * Retrieves the sessions information from the node.
  95      *
  96      * @param monitor
  97      *            - a progress monitor
  98      * @throws ExecutionException
  99      *             If the command fails
 100      */
 101     public void getSessionsFromNode(IProgressMonitor monitor)
 102             throws ExecutionException {
 103         String[] sessionNames = getControlService().getSessionNames(monitor);
 104         for (int i = 0; i < sessionNames.length; i++) {
 105             TraceSessionComponent session = new TraceSessionComponent(
 106                     sessionNames[i], this);
 107             addChild(session);
 108             session.getConfigurationFromNode(monitor);
 109         }
 110     }
 111
 112     /**
 113      * Creates a session with given session name and location.
 114      *
 115      * @param sessionInf
 116      *            the session information used to create the session
 117      *
 118      * @param monitor
 119      *            - a progress monitor
 120      * @throws ExecutionException
 121      *             If the command fails
 122      */
 123     public void createSession(ISessionInfo sessionInf, IProgressMonitor monitor) throws ExecutionException {
 124         ISessionInfo sessionInfo = getControlService().createSession(sessionInf, monitor);
 125
 126         if (sessionInfo != null) {
 127             TraceSessionComponent session = new TraceSessionComponent(sessionInfo.getName(), TraceSessionGroup.this);
 128             addChild(session);
 129             session.getConfigurationFromNode(monitor);
 130         }
 131     }
 132
 133     /**
 134      * Destroys a session with given session name.
 135      *
 136      * @param session
 137      *            - a session component to destroy
 138      * @param monitor
 139      *            - a progress monitor
 140      * @throws ExecutionException
 141      *             If the command fails
 142      */
 143     public void destroySession(TraceSessionComponent session,
 144             IProgressMonitor monitor) throws ExecutionException {
 145         getControlService().destroySession(session.getName(), monitor);
 146         session.removeAllChildren();
 147         removeChild(session);
 148     }
 149 }