eu.numberfour.n4js.ui.organize.imports.N4JSOrganizeImportsHelper.java Source code

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Here is the source code for eu.numberfour.n4js.ui.organize.imports.N4JSOrganizeImportsHelper.java

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/**
 * Copyright (c) 2016 NumberFour AG.
 * 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:
 *   NumberFour AG - Initial API and implementation
 */
package eu.numberfour.n4js.ui.organize.imports;

import java.util.Collection;

import com.google.common.collect.Multimap;

/**
 */
public class N4JSOrganizeImportsHelper {

    /**
     * Turn this Multimap into a two-dimensional array the first index giving the page, second the choices of this page.
     *
     * @param multimap
     *            name to many options
     * @return two-dim Array of T
     */
    public static <T> Object[][] createOptions(Multimap<String, T> multimap) {
        Object[][] ret = new Object[multimap.keySet().size()][];

        int page = 0;
        for (String key : multimap.keySet()) {
            Collection<T> values = multimap.get(key);
            ret[page] = new Object[values.size()];
            int option = 0;
            for (T ns : values) {
                ret[page][option] = ns;
                option++;
            }
            page++;
        }

        return ret;
    }

}