Subversion Repositories mkgmap

Rev

Rev 3834 | View as "text/plain" | Blame | Compare with Previous | Last modification | View Log | RSS feed

/*
 * Copyright (C) 2006, 2011.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 or
 * version 2 as published by the Free Software Foundation.
 *
 * This program 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
 * General Public License for more details.
 */

package uk.me.parabola.mkgmap.build;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Set;

import uk.me.parabola.mkgmap.CommandArgs;
import uk.me.parabola.util.EnhancedProperties;

public class LocatorUtil {
        private LocatorUtil () {
                // private constructor to hide the implicit one
        }
       
        /**
         * Parses the parameters of the location-autofill option. Establishes also downwards
         * compatibility with the old integer values of location-autofill.
         * @param props program properties
         * @return the options
         */

        public static Set<String> parseAutofillOption(EnhancedProperties props) {
                final String optName = "location-autofill";
                final String IS_IN = "is_in";
                final String NEAREST = "nearest";
                String optionStr = props.getProperty(optName, null);
                if (optionStr == null) {
                        return Collections.emptySet();
                }
                Set<String> autofillOptions = CommandArgs.stringToSet(optionStr, optName);
       
                // convert the old autofill options to the new parameters
                if (autofillOptions.contains("0")) {
                        autofillOptions.add(IS_IN);
                        autofillOptions.remove("0");
                }
                if (autofillOptions.contains("1")) {
                        autofillOptions.add(IS_IN);
                        autofillOptions.remove("1");
                }
                if (autofillOptions.contains("2")) {
                        autofillOptions.add(IS_IN);
                        // PENDING: fuzzy search
                        autofillOptions.add(NEAREST);
                        autofillOptions.remove("2");
                }              
                if (autofillOptions.contains("3")) {
                        autofillOptions.add(IS_IN);
                        // PENDING: fuzzy search
                        autofillOptions.add(NEAREST);
                        autofillOptions.remove("3");
                }      
                final List<String> knownOptions = Arrays.asList("bounds", IS_IN, NEAREST);
                for (String s : autofillOptions){
                        if (!knownOptions.contains(s)) {
                                throw new IllegalArgumentException(s + " is not a known sub option for option location-autofill: " + optionStr);
                        }
                }
                return autofillOptions;
        }
}