| /* |
| * Copyright (c) 2015 Eike Stepper (Berlin, Germany) 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: |
| * Victor Roldan Betancort - initial API and implementation |
| * Eike Stepper - maintenance |
| */ |
| package org.eclipse.emf.cdo.internal.ui.actions.delegates; |
| |
| import org.eclipse.emf.cdo.CDOObject; |
| import org.eclipse.emf.cdo.internal.ui.actions.OpenTransactionAction; |
| import org.eclipse.emf.cdo.internal.ui.messages.Messages; |
| import org.eclipse.emf.cdo.session.CDOSession; |
| import org.eclipse.emf.cdo.transaction.CDOTransaction; |
| import org.eclipse.emf.cdo.view.CDOView; |
| |
| import org.eclipse.net4j.util.AdapterUtil; |
| import org.eclipse.net4j.util.ui.UIUtil; |
| import org.eclipse.net4j.util.ui.actions.LongRunningActionDelegate; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.SubProgressMonitor; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IWorkbenchPart; |
| |
| import java.text.MessageFormat; |
| |
| /** |
| * @author Victor Roldan Betancort |
| */ |
| @Deprecated |
| public abstract class TransactionalBackgroundActionDelegate extends LongRunningActionDelegate |
| implements IObjectActionDelegate |
| { |
| private IWorkbenchPart targetPart; |
| |
| private String text; |
| |
| private CDOObject transactionalObject; |
| |
| public TransactionalBackgroundActionDelegate(String text) |
| { |
| this.text = text; |
| } |
| |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) |
| { |
| this.targetPart = targetPart; |
| selectionChanged(action, getSelection()); |
| } |
| |
| public IWorkbenchPart getTargetPart() |
| { |
| return targetPart; |
| } |
| |
| @Override |
| protected String getText() |
| { |
| return text; |
| } |
| |
| protected int getCommitWorkPercent() |
| { |
| return 90; |
| } |
| |
| @Override |
| protected final void preRun() throws Exception |
| { |
| Object element = UIUtil.getElement(getSelection()); |
| CDOObject object = AdapterUtil.adapt(element, CDOObject.class); |
| if (object != null) |
| { |
| transactionalObject = preRun(object); |
| if (transactionalObject != null) |
| { |
| CDOView view = transactionalObject.cdoView(); |
| if (view.isReadOnly()) |
| { |
| throw new IllegalStateException( |
| MessageFormat.format(Messages.getString("TransactionalBackgroundAction_0"), transactionalObject)); //$NON-NLS-1$ |
| } |
| |
| // Bypass cancel() |
| return; |
| } |
| } |
| |
| cancel(); |
| } |
| |
| /** |
| * Usually opens a new transaction based on the passed object and its view/session and returns a "contextualized" copy |
| * of this object. Clients may override to access the UI thread before the background job is started or change the |
| * contextualization procedure. |
| * |
| * @param object |
| * Usually an object in a read-only view that needs to be modified in a separate transaction. |
| * @return A transactional copy of the passed object, or <code>null</code> to indicate cancelation of this action. |
| */ |
| protected CDOObject preRun(CDOObject object) |
| { |
| CDOSession session = object.cdoView().getSession(); |
| CDOTransaction transaction = OpenTransactionAction.openTransaction(session); |
| |
| CDOObject transactionalObject = transaction.getObject(object); |
| return transactionalObject; |
| } |
| |
| @Override |
| protected final void doRun(IProgressMonitor progressMonitor) throws Exception |
| { |
| CDOTransaction transaction = (CDOTransaction)transactionalObject.cdoView(); |
| int commitWorkPercent = getCommitWorkPercent(); |
| progressMonitor.beginTask(Messages.getString("TransactionalBackgroundAction_1"), 100); //$NON-NLS-1$ |
| |
| try |
| { |
| doRun(transaction, transactionalObject, new SubProgressMonitor(progressMonitor, 100 - commitWorkPercent)); |
| transaction.commit(new SubProgressMonitor(progressMonitor, commitWorkPercent)); |
| } |
| finally |
| { |
| progressMonitor.done(); |
| transaction.close(); |
| transactionalObject = null; |
| } |
| } |
| |
| protected abstract void doRun(CDOTransaction transaction, CDOObject object, IProgressMonitor progressMonitor) |
| throws Exception; |
| } |