bundles/org.eclipse.team.cvs.ui/src/org/eclipse/team/internal/ccvs/ui/actions/UpdateAction.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.team.internal.ccvs.ui.actions;

import java.lang.reflect.InvocationTargetException;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jface.action.IAction;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.internal.ccvs.core.CVSTeamProvider;
import org.eclipse.team.internal.ccvs.core.client.Command;
import org.eclipse.team.internal.ccvs.ui.Policy;
import org.eclipse.ui.actions.WorkspaceModifyOperation;

/**
 * UpdateAction performs a 'cvs update' command on the selected resources.
 * If conflicts are present (file has been changed both remotely and locally),
 * the changes will be merged into the local file such that the user must
 * resolve the conflicts. This action is temporary code; it will be removed
 * when a functional synchronize view has been implemented.
 */
public class UpdateAction extends WorkspaceAction {
	/*
	 * @see IActionDelegate#run(IAction)
	 */
	public void execute(IAction action) throws InterruptedException, InvocationTargetException {
		run(new WorkspaceModifyOperation() {
			public void execute(IProgressMonitor monitor) throws InterruptedException, InvocationTargetException {
				try {					
					Hashtable table = getProviderMapping();
					Set keySet = table.keySet();
					monitor.beginTask("", keySet.size() * 1000); //$NON-NLS-1$
					monitor.setTaskName(Policy.bind("UpdateAction.updating")); //$NON-NLS-1$
					Iterator iterator = keySet.iterator();
					while (iterator.hasNext()) {
						IProgressMonitor subMonitor = new SubProgressMonitor(monitor, 1000);
						CVSTeamProvider provider = (CVSTeamProvider)iterator.next();
						List list = (List)table.get(provider);
						IResource[] providerResources = (IResource[])list.toArray(new IResource[list.size()]);
						provider.update(providerResources, Command.NO_LOCAL_OPTIONS, null, true /*createBackups*/, subMonitor);
					}
				} catch (TeamException e) {
					throw new InvocationTargetException(e);
				} finally {
					monitor.done();
				}
			}
		}, true /* cancelable */, PROGRESS_DIALOG);

	}

	/**
	 * @see org.eclipse.team.internal.ccvs.ui.actions.CVSAction#getErrorTitle()
	 */
	protected String getErrorTitle() {
		return Policy.bind("UpdateAction.update"); //$NON-NLS-1$
	}

	/**
	 * @see org.eclipse.team.internal.ccvs.ui.actions.WorkspaceAction#isEnabledForAddedResources()
	 */
	protected boolean isEnabledForAddedResources() {
		return false;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.team.internal.ccvs.ui.actions.WorkspaceAction#isEnabledForNonExistantResources()
	 */
	protected boolean isEnabledForNonExistantResources() {
		return true;
	}
	
}