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 java.util.List;
  16
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.runtime.IProgressMonitor;
  19 import org.eclipse.core.runtime.NullProgressMonitor;
  20 import org.eclipse.linuxtools.internal.lttng2.control.core.model.ISessionInfo;
  21 import org.eclipse.linuxtools.internal.lttng2.control.ui.views.model.ITraceControlComponent;
  22
  23 /**
  24  * <p>
  25  * Implementation of the trace session group.
  26  * </p>
  27  *
  28  * @author Bernd Hufmann
  29  */
  30 public class TraceSessionGroup extends TraceControlComponent {
  31     // ------------------------------------------------------------------------
  32     // Constants
  33     // ------------------------------------------------------------------------
  34     /**
  35      * Path to icon file for this component.
  36      */
  37     public static final String TRACE_SESSIONS_ICON_FILE = "icons/obj16/sessions.gif"; //$NON-NLS-1$
  38
  39     // ------------------------------------------------------------------------
  40     // Attributes
  41     // ------------------------------------------------------------------------
  42
  43     // ------------------------------------------------------------------------
  44     // Constructors
  45     // ------------------------------------------------------------------------
  46     /**
  47      * Constructor
  48      * @param name - the name of the component.
  49      * @param parent - the parent of this component.
  50      */
  51     public TraceSessionGroup(String name, ITraceControlComponent parent) {
  52         super(name, parent);
  53         setImage(TRACE_SESSIONS_ICON_FILE);
  54     }
  55
  56     // ------------------------------------------------------------------------
  57     // Accessors
  58     // ------------------------------------------------------------------------
  59
  60     /**
  61      * @return the parent target node
  62      */
  63     public TargetNodeComponent getTargetNode() {
  64         return (TargetNodeComponent)getParent();
  65     }
  66
  67     /**
  68      * Returns if node supports networks streaming or not
  69      * @return <code>true</code> if node supports filtering else <code>false</code>
  70      */
  71     public boolean isNetworkStreamingSupported() {
  72         return getTargetNode().isNetworkStreamingSupported();
  73     }
  74     /**
  75      * Returns if node supports snapshots or not
  76      * @return <code>true</code> if it supports snapshots else <code>false</code>
  77      *
  78      */    public boolean isSnapshotSupported() {
  79         return getTargetNode().isSnapshotSupported();
  80     }
  81
  82     // ------------------------------------------------------------------------
  83     // Operations
  84     // ------------------------------------------------------------------------
  85     /**
  86      * Retrieves the sessions information from the node.
  87      *
  88      * @throws ExecutionException
  89      *             If the command fails
  90      */
  91     public void getSessionsFromNode() throws ExecutionException {
  92         getSessionsFromNode(new NullProgressMonitor());
  93     }
  94
  95     /**
  96      * Retrieves the sessions information from the node.
  97      *
  98      * @param monitor
  99      *            - a progress monitor
 100      * @throws ExecutionException
 101      *             If the command fails
 102      */
 103     public void getSessionsFromNode(IProgressMonitor monitor)
 104             throws ExecutionException {
 105         String[] sessionNames = getControlService().getSessionNames(monitor);
 106         for (int i = 0; i < sessionNames.length; i++) {
 107             TraceSessionComponent session = new TraceSessionComponent(
 108                     sessionNames[i], this);
 109             addChild(session);
 110             session.getConfigurationFromNode(monitor);
 111         }
 112     }
 113
 114     /**
 115      * Creates a session with given session name and location.
 116      *
 117      * @param sessionInf
 118      *            the session information used to create the session
 119      *
 120      * @param monitor
 121      *            - a progress monitor
 122      * @throws ExecutionException
 123      *             If the command fails
 124      */
 125     public void createSession(ISessionInfo sessionInf, IProgressMonitor monitor) throws ExecutionException {
 126         ISessionInfo sessionInfo = getControlService().createSession(sessionInf, monitor);
 127
 128         if (sessionInfo != null) {
 129             TraceSessionComponent session = new TraceSessionComponent(sessionInfo.getName(), TraceSessionGroup.this);
 130             addChild(session);
 131             session.getConfigurationFromNode(monitor);
 132         }
 133     }
 134
 135     /**
 136      * Command to execute a list of commands
 137      * @param monitor
 138      *            - a progress monitor
 139      * @param commands
 140      *            - a list of commands to execute
 141      * @throws ExecutionException
 142      *            If the command fails
 143      */
 144     public void executeCommands(IProgressMonitor monitor, List<String> commands) throws ExecutionException {
 145         getControlService().runCommands(monitor, commands);
 146         getTargetNode().refresh();
 147     }
 148
 149     /**
 150      * Destroys a session with given session name.
 151      *
 152      * @param session
 153      *            - a session component to destroy
 154      * @param monitor
 155      *            - a progress monitor
 156      * @throws ExecutionException
 157      *             If the command fails
 158      */
 159     public void destroySession(TraceSessionComponent session,
 160             IProgressMonitor monitor) throws ExecutionException {
 161         getControlService().destroySession(session.getName(), monitor);
 162         session.removeAllChildren();
 163         removeChild(session);
 164     }
 165 }