core/plugins/org.eclipse.dltk.ui/core refactoring/org/eclipse/dltk/internal/corext/refactoring/participants/RefactoringProcessors.java

/*******************************************************************************
 * Copyright (c) 2000, 2017 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 *******************************************************************************/
package org.eclipse.dltk.internal.corext.refactoring.participants;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;

public class RefactoringProcessors {

	public static String[] getNatures(IProject[] projects)
			throws CoreException {
		Set<String> result = new HashSet<>();
		for (int i = 0; i < projects.length; i++) {
			String[] pns = projects[i].getDescription().getNatureIds();
			for (int p = 0; p < pns.length; p++) {
				result.add(pns[p]);
			}
		}
		return result.toArray(new String[result.size()]);
	}
}