| 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.internal.lttng2.ui.views.control.handlers; |
| 13 | |
| 14 | import org.eclipse.core.commands.ExecutionEvent; |
| 15 | import org.eclipse.core.commands.ExecutionException; |
| 16 | import org.eclipse.linuxtools.internal.lttng2.core.control.model.TargetNodeState; |
| 17 | |
| 18 | /** |
| 19 | * <p> |
| 20 | * Command handler implementation to connect to a target host. |
| 21 | * </p> |
| 22 | * |
| 23 | * @author Bernd Hufmann |
| 24 | */ |
| 25 | public class ConnectHandler extends BaseNodeHandler { |
| 26 | |
| 27 | // ------------------------------------------------------------------------ |
| 28 | // Operations |
| 29 | // ------------------------------------------------------------------------ |
| 30 | |
| 31 | /* |
| 32 | * (non-Javadoc) |
| 33 | * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseNodeHandler#execute(org.eclipse.core.commands.ExecutionEvent) |
| 34 | */ |
| 35 | @Override |
| 36 | public Object execute(ExecutionEvent event) throws ExecutionException { |
| 37 | fLock.lock(); |
| 38 | try { |
| 39 | fTargetNode.connect(); |
| 40 | } finally { |
| 41 | fLock.unlock(); |
| 42 | } |
| 43 | return null; |
| 44 | } |
| 45 | |
| 46 | /* |
| 47 | * (non-Javadoc) |
| 48 | * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.handlers.BaseNodeHandler#isEnabled() |
| 49 | */ |
| 50 | @Override |
| 51 | public boolean isEnabled() { |
| 52 | boolean isEnabled = false; |
| 53 | fLock.lock(); |
| 54 | try { |
| 55 | isEnabled = (super.isEnabled() && (fTargetNode.getTargetNodeState() == TargetNodeState.DISCONNECTED)); |
| 56 | } finally { |
| 57 | fLock.unlock(); |
| 58 | } |
| 59 | return isEnabled; |
| 60 | } |
| 61 | } |