Util.java

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/*
 * Software License Agreement (BSD License)
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 *     from this software without specific prior written permission.
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// author: Jason Wolfe


package ros.roscpp;

import java.util.HashMap;
import java.util.Map;

public class Util {
        public static <X> Map<X, X> arrayToMap(X [] objs) {
                if (objs.length % 2 == 1) throw new IllegalArgumentException("Odd array len");
                HashMap<X, X> ret = new HashMap<X, X>();
                for(int i = 0; i < objs.length; i+=2) {
                        ret.put(objs[i], objs[i+1]);
                }
                return ret;
        }
        
        public static <X> Object[] mapToArray(Map<X, X> objs) {
                Object [] maps = new Object[objs.size() * 2];
                int i = 0;
                for(Map.Entry<X, X> e : objs.entrySet()) {
                        maps[i++] = e.getKey();
                        maps[i++] = e.getValue();
                }
                return maps;
        }
        
}