org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/ui/views/control/dialogs/GetEventInfoDialog.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.dialogs;
  14
  15 import java.util.Arrays;
  16
  17 import org.eclipse.jface.dialogs.Dialog;
  18 import org.eclipse.jface.dialogs.IDialogConstants;
  19 import org.eclipse.jface.dialogs.MessageDialog;
  20 import org.eclipse.linuxtools.internal.lttng2.ui.Activator;
  21 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  22 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceChannelComponent;
  23 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceDomainComponent;
  24 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent;
  25 import org.eclipse.swt.SWT;
  26 import org.eclipse.swt.custom.CCombo;
  27 import org.eclipse.swt.events.SelectionEvent;
  28 import org.eclipse.swt.events.SelectionListener;
  29 import org.eclipse.swt.graphics.Point;
  30 import org.eclipse.swt.layout.GridData;
  31 import org.eclipse.swt.layout.GridLayout;
  32 import org.eclipse.swt.widgets.Composite;
  33 import org.eclipse.swt.widgets.Control;
  34 import org.eclipse.swt.widgets.Group;
  35 import org.eclipse.swt.widgets.Shell;
  36 import org.eclipse.swt.widgets.Text;
  37
  38 /**
  39  * <p>
  40  * Dialog box for collecting information about the events to enable.
  41  * </p>
  42  *
  43  * @author Bernd Hufmann
  44  */
  45 public class GetEventInfoDialog extends Dialog implements IGetEventInfoDialog {
  46
  47     // ------------------------------------------------------------------------
  48     // Constants
  49     // ------------------------------------------------------------------------
  50     /**
  51      * The icon file for this dialog box.
  52      */
  53     public static final String TARGET_NEW_CONNECTION_ICON_FILE = "icons/elcl16/enable_event.gif"; //$NON-NLS-1$
  54
  55     // ------------------------------------------------------------------------
  56     // Attributes
  57     // ------------------------------------------------------------------------
  58     /**
  59      * The dialog composite.
  60      */
  61     private Composite fDialogComposite = null;
  62     /**
  63      * The Group for the session combo box.
  64      */
  65     private Group fSessionsGroup = null;
  66     /**
  67      * The Group for the channel combo box.
  68      */
  69     private Group fChannelsGroup = null;
  70     /**
  71      * The session combo box.
  72      */
  73     private CCombo fSessionsCombo = null;
  74     /**
  75      * The channel combo box.
  76      */
  77     private CCombo fChannelsCombo = null;
  78     /**
  79      * The filter text
  80      */
  81     private Text fFilterText;
  82     /**
  83      * The list of available sessions.
  84      */
  85     private TraceSessionComponent[] fSessions;
  86     /**
  87      * True for kernel, false for UST.
  88      */
  89     private boolean fIsKernel;
  90     /**
  91      * Index in session array (selected session).
  92      */
  93     private int fSessionIndex = 0;
  94     /**
  95      * The Channel where the events should be enabled.
  96      */
  97     private TraceChannelComponent fChannel;
  98     /**
  99      * List of available channels of the selected session.
 100      */
 101     private TraceChannelComponent[] fChannels;
 102     /**
 103      * The filter expression
 104      */
 105     private String fFilterExpression;
 106
 107     // ------------------------------------------------------------------------
 108     // Constructors
 109     // ------------------------------------------------------------------------
 110     /**
 111      * Constructor of dialog box.
 112      * @param shell - the shell for the dialog box
 113      */
 114     public GetEventInfoDialog(Shell shell) {
 115         super(shell);
 116         setShellStyle(SWT.RESIZE);
 117     }
 118
 119     // ------------------------------------------------------------------------
 120     // Accessors
 121     // ------------------------------------------------------------------------
 122     /*
 123      * (non-Javadoc)
 124      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IEnableEventsDialog#getSession()
 125      */
 126     @Override
 127     public TraceSessionComponent getSession() {
 128         return fSessions[fSessionIndex];
 129     }
 130
 131     /*
 132      * (non-Javadoc)
 133      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IEnableEventsDialog#getChannel()
 134      */
 135     @Override
 136     public TraceChannelComponent getChannel() {
 137         return fChannel;
 138     }
 139
 140     /*
 141      * (non-Javadoc)
 142      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IGetEventInfoDialog#setIsKernel(boolean)
 143      */
 144     @Override
 145     public void setIsKernel(boolean isKernel) {
 146         fIsKernel = isKernel;
 147     }
 148
 149     /*
 150      * (non-Javadoc)
 151      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IGetEventInfoDialog#setSessions(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionComponent[])
 152      */
 153     @Override
 154     public void setSessions(TraceSessionComponent[] sessions) {
 155         fSessions = Arrays.copyOf(sessions, sessions.length);
 156     }
 157     /*
 158      * (non-Javadoc)
 159      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.IGetEventInfoDialog#getFilterExpression()
 160      */
 161     @Override
 162     public String getFilterExpression() {
 163        return fFilterExpression;
 164     }
 165
 166     // ------------------------------------------------------------------------
 167     // Operations
 168     // ------------------------------------------------------------------------
 169     /*
 170      * (non-Javadoc)
 171      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 172      */
 173     @Override
 174     protected void configureShell(Shell newShell) {
 175         super.configureShell(newShell);
 176         newShell.setText(Messages.TraceControl_EnableEventsDialogTitle);
 177         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 178     }
 179
 180     /*
 181      * (non-Javadoc)
 182      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 183      */
 184     @Override
 185     protected Control createDialogArea(Composite parent) {
 186
 187         // Main dialog panel
 188         fDialogComposite = new Composite(parent, SWT.NONE);
 189         GridLayout layout = new GridLayout(1, true);
 190         fDialogComposite.setLayout(layout);
 191         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 192
 193         fSessionsGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 194         fSessionsGroup.setText(Messages.TraceControl_EnableEventsSessionGroupName);
 195         layout = new GridLayout(1, true);
 196         fSessionsGroup.setLayout(layout);
 197         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 198         fSessionsGroup.setLayoutData(data);
 199
 200         fSessionsCombo = new CCombo(fSessionsGroup, SWT.READ_ONLY);
 201         fSessionsCombo.setToolTipText(Messages.TraceControl_EnableEventsSessionsTooltip);
 202         fSessionsCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 203
 204         String items[] = new String[fSessions.length];
 205         for (int i = 0; i < items.length; i++) {
 206             items[i] = String.valueOf(fSessions[i].getName());
 207         }
 208
 209         fSessionsCombo.setItems(items);
 210         fSessionsCombo.setEnabled(fSessions.length > 0);
 211
 212         fChannelsGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 213         fChannelsGroup.setText(Messages.TraceControl_EnableEventsChannelGroupName);
 214         layout = new GridLayout(1, true);
 215         fChannelsGroup.setLayout(layout);
 216         data = new GridData(GridData.FILL_HORIZONTAL);
 217         fChannelsGroup.setLayoutData(data);
 218
 219         fChannelsCombo = new CCombo(fChannelsGroup, SWT.READ_ONLY);
 220         fChannelsCombo.setToolTipText(Messages.TraceControl_EnableEventsChannelsTooltip);
 221         fChannelsCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 222         fChannelsCombo.setEnabled(false);
 223
 224         fSessionsCombo.addSelectionListener(new SelectionListener() {
 225             @Override
 226             public void widgetSelected(SelectionEvent e) {
 227                 fSessionIndex = fSessionsCombo.getSelectionIndex();
 228
 229                 if (fSessionIndex >= 0) {
 230                     TraceDomainComponent domain = null;
 231                     TraceDomainComponent[] domains = fSessions[fSessionIndex].getDomains();
 232                     for (int i = 0; i < domains.length; i++) {
 233
 234                         if (domains[i].isKernel() == fIsKernel) {
 235                             domain = domains[i];
 236                             break;
 237                         }
 238                     }
 239
 240                     if (domain != null) {
 241                         fChannels = domain.getChannels();
 242                         String selectionItems[] = new String[fChannels.length];
 243                         for (int i = 0; i < selectionItems.length; i++) {
 244                             selectionItems[i] = String.valueOf(fChannels[i].getName());
 245                         }
 246                         fChannelsCombo.setItems(selectionItems);
 247                         fChannelsCombo.setEnabled(fChannels.length > 0);
 248                     } else {
 249                         fChannelsCombo.setItems(new String[0]);
 250                         fChannelsCombo.setEnabled(false);
 251                         fChannels = null;
 252                    }
 253                    fChannelsCombo.getParent().getParent().layout();
 254                 }
 255             }
 256
 257             @Override
 258             public void widgetDefaultSelected(SelectionEvent e) {
 259             }
 260         });
 261
 262         // take first session to test whether events filtering is supported or not
 263         if (fSessions[0].isEventFilteringSupported() && !fIsKernel) {
 264             Group filterMainGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 265             filterMainGroup.setText(Messages.TraceControl_EnableEventsFilterGroupName);
 266             layout = new GridLayout(2, false);
 267             filterMainGroup.setLayout(layout);
 268             data = new GridData(GridData.FILL_HORIZONTAL);
 269             filterMainGroup.setLayoutData(data);
 270
 271             fFilterText = new Text(filterMainGroup, SWT.LEFT);
 272             fFilterText.setToolTipText(Messages.TraceControl_EnableEventsFilterTooltip);
 273             data = new GridData(GridData.FILL_HORIZONTAL);
 274             fFilterText.setLayoutData(data);
 275         }
 276
 277         getShell().setMinimumSize(new Point(300, 200));
 278
 279         return fDialogComposite;
 280     }
 281
 282     /*
 283      * (non-Javadoc)
 284      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 285      */
 286     @Override
 287     protected void createButtonsForButtonBar(Composite parent) {
 288         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 289         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 290     }
 291
 292     /*
 293      * (non-Javadoc)
 294      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 295      */
 296     @Override
 297     protected void okPressed() {
 298
 299         if (fSessionsCombo.getSelectionIndex() < 0) {
 300             MessageDialog.openError(getShell(),
 301                   Messages.TraceControl_EnableEventsDialogTitle,
 302                   Messages.TraceControl_EnableEventsNoSessionError);
 303             return;
 304         }
 305
 306         fSessionIndex = fSessionsCombo.getSelectionIndex();
 307
 308         // if no channel is available or no channel is selected use default channel indicated by fChannel=null
 309         fChannel = null;
 310         if ((fChannels != null) && (fChannelsCombo.getSelectionIndex() >= 0)) {
 311             fChannel = fChannels[fChannelsCombo.getSelectionIndex()];
 312         }
 313
 314         // initialize filter with null
 315         fFilterExpression = null;
 316         if (fSessions[0].isEventFilteringSupported() && !fIsKernel) {
 317             String tempFilter = fFilterText.getText();
 318
 319             if(!tempFilter.matches("\\s*")) { //$NON-NLS-1$
 320                 fFilterExpression = tempFilter;
 321             }
 322         }
 323
 324         super.okPressed();
 325     }
 326 }