| /******************************************************************************* |
| * Copyright (c) 2005, 2012 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.bpel.ui.commands; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.bpel.model.Flow; |
| import org.eclipse.bpel.model.Link; |
| import org.eclipse.bpel.model.Source; |
| import org.eclipse.bpel.model.Target; |
| import org.eclipse.bpel.ui.BPELUIPlugin; |
| import org.eclipse.bpel.ui.IBPELUIConstants; |
| import org.eclipse.bpel.ui.adapters.IMarkerHolder; |
| import org.eclipse.bpel.ui.commands.util.AutoUndoCommand; |
| import org.eclipse.bpel.ui.util.BPELUtil; |
| import org.eclipse.bpel.ui.util.FlowLinkUtil; |
| import org.eclipse.core.resources.IMarker; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.emf.ecore.EObject; |
| |
| |
| public class DeleteLinkCommand extends AutoUndoCommand { |
| |
| private Link link; |
| private Flow flow; |
| |
| public DeleteLinkCommand(Link link) { |
| super(IBPELUIConstants.CMD_DELETE_LINK, new ArrayList<Object>()); |
| this.link = link; |
| EObject cont = link.eContainer().eContainer(); |
| flow = (Flow)cont; |
| addModelRoot(flow); |
| } |
| |
| // NOTE: By selecting an activity and link at the same time, the user can run |
| // a GEF DeleteAction which results in two DeleteLinkCommands for the same link |
| // (one from GEF and one in DeleteChildCommand). This is harmless as long as |
| // our canExecute() and canUndo() methods check if the link is actually in |
| // the model. |
| |
| @Override |
| public boolean canDoExecute() { |
| if (link == null || flow == null) return false; |
| // see comment above |
| return FlowLinkUtil.getFlowLinks(flow).contains(link); |
| } |
| |
| @Override |
| public void doExecute() { |
| // remove any markers associated with the child. |
| // TODO: We need an undo/redo story for marker removal. |
| IMarkerHolder markerHolder = BPELUtil.adapt(link, IMarkerHolder.class); |
| if (markerHolder != null) { |
| IMarker[] markers = markerHolder.getMarkers(link); |
| for (int i = 0; i < markers.length; i++) { |
| try { |
| markers[i].delete(); |
| } catch (CoreException e) { |
| BPELUIPlugin.log(e); |
| } |
| } |
| } |
| |
| Object[] source = link.getSources().toArray(); |
| for (int i = 0; i<source.length; i++) { |
| if (source[i] != null) FlowLinkUtil.removeActivitySource((Source)source[i]); |
| } |
| |
| Object[] target = link.getTargets().toArray(); |
| for (int i = 0; i<target.length; i++) { |
| if (target[i] != null) FlowLinkUtil.removeActivityTarget((Target)target[i]); |
| } |
| |
| if (flow != null) FlowLinkUtil.removeFlowLink(flow, link); |
| } |
| } |