org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/model/impl/TraceSessionComponent.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.model.impl;
  13
  14 import org.eclipse.core.commands.ExecutionException;
  15 import org.eclipse.core.runtime.IProgressMonitor;
  16 import org.eclipse.core.runtime.NullProgressMonitor;
  17 import org.eclipse.linuxtools.lttng.ui.LTTngUiPlugin;
  18 import org.eclipse.linuxtools.lttng.ui.views.control.Messages;
  19 import org.eclipse.linuxtools.lttng.ui.views.control.model.IDomainInfo;
  20 import org.eclipse.linuxtools.lttng.ui.views.control.model.ISessionInfo;
  21 import org.eclipse.linuxtools.lttng.ui.views.control.model.ITraceControlComponent;
  22 import org.eclipse.linuxtools.lttng.ui.views.control.model.TraceSessionState;
  23 import org.eclipse.swt.graphics.Image;
  24
  25 /**
  26  * <b><u>TraceSessionComponent</u></b>
  27  * <p>
  28  * Implementation of the trace session component.
  29  * </p>
  30  */
  31 public class TraceSessionComponent extends TraceControlComponent {
  32
  33     // ------------------------------------------------------------------------
  34     // Constants
  35     // ------------------------------------------------------------------------
  36     /**
  37      * Path to icon file for this component (inactive state).
  38      */
  39     public static final String TRACE_SESSION_ICON_FILE_INACTIVE = "icons/obj16/session_inactive.gif"; //$NON-NLS-1$
  40     /**
  41      * Path to icon file for this component (active state).
  42      */
  43     public static final String TRACE_SESSION_ICON_FILE_ACTIVE = "icons/obj16/session_active.gif"; //$NON-NLS-1$
  44     /**
  45      * Path to icon file for this component (destroyed state).
  46      */
  47     public static final String TRACE_SESSION_ICON_FILE_DESTROYED = "icons/obj16/session_destroyed.gif"; //$NON-NLS-1$
  48
  49     // ------------------------------------------------------------------------
  50     // Attributes
  51     // ------------------------------------------------------------------------
  52     /**
  53      * The session information.
  54      */
  55     private ISessionInfo fSessionInfo = null;
  56     /**
  57      * A flag to indicate if session has been destroyed.
  58      */
  59     private boolean fIsDestroyed = false;
  60     /**
  61      * The image to be displayed in state active.
  62      */
  63     private Image fActiveImage = null;
  64     /**
  65      * The image to be displayed in state destroyed
  66      */
  67     private Image fDestroyedImage = null;
  68
  69     // ------------------------------------------------------------------------
  70     // Constructors
  71     // ------------------------------------------------------------------------
  72     /**
  73      * Constructor
  74      * @param name - the name of the component.
  75      * @param parent - the parent of this component.
  76      */
  77     public TraceSessionComponent(String name, ITraceControlComponent parent) {
  78         super(name, parent);
  79         setImage(TRACE_SESSION_ICON_FILE_INACTIVE);
  80         setToolTip(Messages.TraceControl_SessionDisplayName);
  81         fSessionInfo = new SessionInfo(name);
  82         fActiveImage = LTTngUiPlugin.getDefault().loadIcon(TRACE_SESSION_ICON_FILE_ACTIVE);
  83         fDestroyedImage = LTTngUiPlugin.getDefault().loadIcon(TRACE_SESSION_ICON_FILE_DESTROYED);
  84     }
  85
  86     // ------------------------------------------------------------------------
  87     // Accessors
  88     // ------------------------------------------------------------------------
  89     /*
  90      * (non-Javadoc)
  91      * @see org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceControlComponent#getImage()
  92      */
  93     @Override
  94     public Image getImage() {
  95         if (fIsDestroyed) {
  96             return fDestroyedImage;
  97         }
  98
  99         if (fSessionInfo.getSessionState() == TraceSessionState.INACTIVE) {
 100             return super.getImage();
 101         }
 102
 103         return fActiveImage;
 104     }
 105
 106
 107     /**
 108      * @return the whether the session is destroyed or not.
 109      */
 110     public boolean isDestroyed() {
 111         return fIsDestroyed;
 112     }
 113
 114     /**
 115      * Sets the session destroyed state to the given value.
 116      * @param destroyed - value to set.
 117      */
 118     public void setDestroyed(boolean destroyed) {
 119         fIsDestroyed = destroyed;
 120     }
 121
 122     /**
 123      * @return the session state state (active or inactive).
 124      */
 125     public TraceSessionState getSessionState() {
 126         return fSessionInfo.getSessionState();
 127     }
 128
 129     /**
 130      * Sets the session state  to the given value.
 131      * @param state - state to set.
 132      */
 133     public void setSessionState(TraceSessionState state) {
 134         fSessionInfo.setSessionState(state);
 135     }
 136
 137     /**
 138      * Sets the event state to the value specified by the given name.
 139      * @param stateName - state to set.
 140      */
 141     public void setSessionState(String stateName) {
 142         fSessionInfo.setSessionState(stateName);
 143     }
 144
 145     /**
 146      * @return path string where session is located.
 147      */
 148     public String getSessionPath() {
 149         return fSessionInfo.getSessionPath();
 150     }
 151
 152     /**
 153      * Sets the path string (where session is located) to the given value.
 154      * @param path - session path to set.
 155      */
 156     public void setSessionPath(String sessionPath) {
 157         fSessionInfo.setSessionPath(sessionPath);
 158     }
 159
 160     // ------------------------------------------------------------------------
 161     // Operations
 162     // ------------------------------------------------------------------------
 163     /**
 164      * Retrieves the session configuration from the node.
 165      * @throws ExecutionException
 166      */
 167     public void getConfigurationFromNode() throws ExecutionException {
 168         getConfigurationFromNode(new NullProgressMonitor());
 169     }
 170
 171     /**
 172      * Retrieves the session configuration from the node.
 173      * @param monitor - a progress monitor
 174      * @throws ExecutionException
 175      */
 176     public void getConfigurationFromNode(IProgressMonitor monitor) throws ExecutionException {
 177         fSessionInfo = getControlService().getSession(getName(), monitor);
 178         IDomainInfo[] domains = fSessionInfo.getDomains();
 179         for (int i = 0; i < domains.length; i++) {
 180             TraceDomainComponent domainComponenent = new TraceDomainComponent(domains[i].getName(), this);
 181             addChild(domainComponenent);
 182             domainComponenent.setDomainInfo(domains[i]);
 183         }
 184     }
 185 }