bundles/org.eclipse.equinox.p2.touchpoint.eclipse/src/org/eclipse/equinox/internal/p2/touchpoint/eclipse/actions/SetProgramPropertyAction.java

/*******************************************************************************
 * Copyright (c) 2008 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.equinox.internal.p2.touchpoint.eclipse.actions;

import java.util.Map;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.equinox.internal.p2.touchpoint.eclipse.EclipseTouchpoint;
import org.eclipse.equinox.internal.p2.touchpoint.eclipse.Util;
import org.eclipse.equinox.internal.provisional.frameworkadmin.Manipulator;
import org.eclipse.equinox.internal.provisional.p2.engine.ProvisioningAction;
import org.eclipse.osgi.util.NLS;

public class SetProgramPropertyAction extends ProvisioningAction {
	public static final String ID = "setProgramProperty"; //$NON-NLS-1$

	public IStatus execute(Map parameters) {
		Manipulator manipulator = (Manipulator) parameters.get(EclipseTouchpoint.PARM_MANIPULATOR);
		String propName = (String) parameters.get(ActionConstants.PARM_PROP_NAME);
		if (propName == null)
			return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_PROP_NAME, ID));
		String propValue = (String) parameters.get(ActionConstants.PARM_PROP_VALUE);
		if (propValue == null)
			return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_PROP_VALUE, ID));
		getMemento().put(ActionConstants.PARM_PREVIOUS_VALUE, manipulator.getConfigData().getFwDependentProp(propName));
		manipulator.getConfigData().setFwDependentProp(propName, propValue);
		return Status.OK_STATUS;
	}

	public IStatus undo(Map parameters) {
		Manipulator manipulator = (Manipulator) parameters.get(EclipseTouchpoint.PARM_MANIPULATOR);
		String propName = (String) parameters.get(ActionConstants.PARM_PROP_NAME);
		if (propName == null)
			return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_PROP_NAME, ID));
		String previousValue = (String) getMemento().get(ActionConstants.PARM_PREVIOUS_VALUE);
		if (previousValue == null)
			return Util.createError(NLS.bind(Messages.parameter_not_set, ActionConstants.PARM_PREVIOUS_VALUE, ID));
		manipulator.getConfigData().setFwDependentProp(propName, previousValue);
		return Status.OK_STATUS;
	}
}