/*
* Geotoolkit - An Open Source Java GIS Toolkit
* http://www.geotoolkit.org
*
* (C) 2009-2013, Geomatys
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotoolkit.util.collection;
import java.util.HashMap;
import java.util.Map;
import org.apache.sis.util.ArgumentChecks;
/**
*
* @author Alexis Manin (Geomatys)
*/
public final class MapUtilities {
private MapUtilities() {
}
/**
* Build a map using values in parameters, which must be grouped by key/value couple.
* Example : buildMap(key1, value1, key2, value2...)
* @param couples the values to put
* @return
*/
public static <T extends Object> Map buildMap(T ... couples) {
ArgumentChecks.ensureNonNull("map values", couples);
if (couples.length % 2 != 0) {
throw new IllegalArgumentException("Invalid number of values (not divisible per 2)");
}
final Map result = new HashMap(couples.length/2);
for(int i = 0 ; i < couples.length ;) {
result.put(couples[i++], couples[i++]);
}
return result;
}
}