1 /**********************************************************************
2 * Copyright (c) 2012 Ericsson
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
10 * Bernd Hufmann - Initial API and implementation
11 **********************************************************************/
12 package org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.handlers
;
14 import java
.util
.ArrayList
;
15 import java
.util
.Iterator
;
16 import java
.util
.List
;
18 import org
.eclipse
.core
.commands
.ExecutionEvent
;
19 import org
.eclipse
.core
.commands
.ExecutionException
;
20 import org
.eclipse
.core
.runtime
.IProgressMonitor
;
21 import org
.eclipse
.core
.runtime
.IStatus
;
22 import org
.eclipse
.core
.runtime
.Status
;
23 import org
.eclipse
.core
.runtime
.jobs
.Job
;
24 import org
.eclipse
.jface
.viewers
.ISelection
;
25 import org
.eclipse
.jface
.viewers
.StructuredSelection
;
26 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.Activator
;
27 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.ControlView
;
28 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.Messages
;
29 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.dialogs
.IConfirmDialog
;
30 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.dialogs
.TraceControlDialogFactory
;
31 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.model
.TraceSessionState
;
32 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.model
.impl
.TraceSessionComponent
;
33 import org
.eclipse
.linuxtools
.internal
.lttng2
.ui
.views
.control
.model
.impl
.TraceSessionGroup
;
34 import org
.eclipse
.ui
.IWorkbenchPage
;
35 import org
.eclipse
.ui
.IWorkbenchWindow
;
36 import org
.eclipse
.ui
.PlatformUI
;
39 * <b><u>DestroySessionHandler</u></b>
41 * Command handler implementation to destroy one or more trace sessions.
44 public class DestroySessionHandler
extends BaseControlViewHandler
{
46 // ------------------------------------------------------------------------
48 // ------------------------------------------------------------------------
50 * The list of session components the command is to be executed on.
52 private List
<TraceSessionComponent
> fSessions
= new ArrayList
<TraceSessionComponent
>();
54 // ------------------------------------------------------------------------
56 // ------------------------------------------------------------------------
59 * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
62 public Object
execute(ExecutionEvent event
) throws ExecutionException
{
64 IWorkbenchWindow window
= PlatformUI
.getWorkbench().getActiveWorkbenchWindow();
69 // Get user confirmation
70 IConfirmDialog dialog
= TraceControlDialogFactory
.getInstance().getConfirmDialog();
71 if (!dialog
.openConfirm(window
.getShell(),
72 Messages
.TraceControl_DestroyConfirmationTitle
,
73 Messages
.TraceControl_DestroyConfirmationMessage
)) {
78 Job job
= new Job(Messages
.TraceControl_DestroySessionJob
) {
80 protected IStatus
run(IProgressMonitor monitor
) {
82 // Make a copy of the list of sessions to avoid ConcurrentModificationException when iterating
83 // over fSessions, since fSessions is modified in another thread triggered by the tree viewer refresh
84 // after removing a session.
85 TraceSessionComponent
[] sessions
= (TraceSessionComponent
[])fSessions
.toArray(new TraceSessionComponent
[fSessions
.size()]);
87 for (int i
= 0; i
< sessions
.length
; i
++) {
88 // Destroy all selected sessions
89 TraceSessionComponent session
= sessions
[i
];
90 TraceSessionGroup sessionGroup
= (TraceSessionGroup
)session
.getParent();
91 sessionGroup
.destroySession(session
, monitor
);
93 } catch (ExecutionException e
) {
94 return new Status(Status
.ERROR
, Activator
.PLUGIN_ID
, Messages
.TraceControl_DestroySessionFailure
, e
);
96 return Status
.OK_STATUS
;
107 * @see org.eclipse.core.commands.AbstractHandler#isEnabled()
110 public boolean isEnabled() {
111 // Get workbench page for the Control View
112 IWorkbenchPage page
= getWorkbenchPage();
118 // Check if one or more session are selected
119 ISelection selection
= page
.getSelection(ControlView
.ID
);
120 if (selection
instanceof StructuredSelection
) {
121 StructuredSelection structered
= ((StructuredSelection
) selection
);
122 for (Iterator
<?
> iterator
= structered
.iterator(); iterator
.hasNext();) {
123 Object element
= (Object
) iterator
.next();
124 if (element
instanceof TraceSessionComponent
) {
125 // Add only TraceSessionComponents that are inactive and not destroyed
126 TraceSessionComponent session
= (TraceSessionComponent
) element
;
127 if ((session
.getSessionState() == TraceSessionState
.INACTIVE
) && (!session
.isDestroyed())) {
128 fSessions
.add((TraceSessionComponent
)element
);
133 return !fSessions
.isEmpty();