org.apache.easyant4e/src/org/apache/easyant4e/natures/RemoveEasyAntNatureOperation.java

/* 
 *  Copyright 2008-2009 the EasyAnt project
 * 
 *  See the NOTICE file distributed with this work for additional information
 *  regarding copyright ownership. 
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *  http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software 
 *  distributed under the License is distributed on an "AS IS" BASIS, 
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and 
 *  limitations under the License.
 */
package org.apache.easyant4e.natures;

import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;

import org.apache.easyant4e.Activator;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;

/**
 * Remove the EasyAnt nature to the project.
 * 
 * @author <a href="mailto:jerome@benois.fr">Jerome Benois</a>
 */
public class RemoveEasyAntNatureOperation implements IRunnableWithProgress {

	private IProject project;

	public RemoveEasyAntNatureOperation(IProject project) {
		this.project = project;
	}

	@SuppressWarnings("unchecked")
	public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
		if (project != null) {
			try {
				if (project.getNature(EasyAntNature.NATURE_ID) != null) {
					monitor.subTask("Remove the EasyAnt nature to the project " + project.getName());
					IProjectDescription description = project.getDescription();
					String[] oldNatures = description.getNatureIds();
					ArrayList newNatures = new ArrayList();
					for (int i = 0; i < oldNatures.length; i++) {
						if (!oldNatures[i].equals(EasyAntNature.NATURE_ID)) {
							newNatures.add(oldNatures[i]);
						}
					}
					description.setNatureIds((String[]) newNatures.toArray(new String[newNatures.size()]));
					project.setDescription(description, new SubProgressMonitor(monitor, 1));
				}
			} catch (CoreException e) {
				Activator.getEasyAntPlugin().log(e);
			}
			monitor.done();
		}

	}

}