Java Map Replace replaceParameters(Map map, Map originals, Map defaults, Map hards)

Description

Utility method that uppercases the original parameters, adds the default parameters in the map if missing, and replaces the parameters contained in the hards map.

License

Open Source License

Declaration

public static void replaceParameters(Map<String, String> map, Map<String, String> originals,
        Map<String, String> defaults, Map<String, String> hards) 

Method Source Code

//package com.java2s;
/*----------------------------------------------------------------------------
 This file is part of deegree, http://deegree.org/
 Copyright (C) 2001-2010 by://from  www.  j  av  a2  s .com
 - Department of Geography, University of Bonn -
 and
 - lat/lon GmbH -
    
 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.
 You should have received a copy of the GNU Lesser General Public License
 along with this library; if not, write to the Free Software Foundation, Inc.,
 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    
 Contact information:
    
 lat/lon GmbH
 Aennchenstr. 19, 53177 Bonn
 Germany
 http://lat-lon.de/
    
 Department of Geography, University of Bonn
 Prof. Dr. Klaus Greve
 Postfach 1147, 53001 Bonn
 Germany
 http://www.geographie.uni-bonn.de/deegree/
    
 Occam Labs UG (haftungsbeschr?nkt)
 Godesberger Allee 139, 53175 Bonn
 Germany
 http://www.occamlabs.de/
    
 e-mail: info@deegree.org
 ----------------------------------------------------------------------------*/

import java.util.Map;
import java.util.Map.Entry;

public class Main {
    /**
     * Utility method that uppercases the original parameters, adds the default parameters in the map if missing, and
     * replaces the parameters contained in the hards map.
     */
    public static void replaceParameters(Map<String, String> map, Map<String, String> originals,
            Map<String, String> defaults, Map<String, String> hards) {
        // handle default params
        for (String def : defaults.keySet()) {
            String key = def.toUpperCase();
            if (originals.containsKey(key)) {
                map.put(key, originals.get(key));
            } else {
                map.put(def, defaults.get(def));
            }
        }
        // handle preset params
        for (Entry<String, String> e : hards.entrySet()) {
            if (map.containsKey(e.getKey().toLowerCase())) {
                map.put(e.getKey().toLowerCase(), e.getValue());
            } else
                map.put(e.getKey(), e.getValue());
        }
    }
}

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