Main.java Source code

Introduction

Here is the source code for Main.java

Source

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

public class Main {

    /**
     * Clones a map and prefixes the keys in the clone, e.g.
     * for mapping "JAVA_HOME" to "env.JAVA_HOME" to simulate
     * the behaviour of ANT.
     *
     * @param source the source map
     * @param prefix the prefix used for all names
     * @return the clone of the source map
     */
    public static Map prefix(Map source, String prefix) {

        if (source == null) {
            return null;
        }

        Map result = new HashMap();

        Iterator iter = source.entrySet().iterator();

        while (iter.hasNext()) {
            Map.Entry entry = (Map.Entry) iter.next();
            Object key = entry.getKey();
            Object value = entry.getValue();
            result.put(prefix + '.' + key.toString(), value);
        }

        return result;
    }

}