www.pudn.com > gvSIG-1_1-rc1-src.zip > AbstractGeneralLanguage.java

/* gvSIG. Sistema de Información Geográfica de la Generalitat Valenciana
*
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
*
* For more information, contact:
*
*  Generalitat Valenciana
*   Conselleria d'Infraestructures i Transport
*   Av. Blasco Ibáñez, 50
*   46010 VALENCIA
*   SPAIN
*
*      +34 963862235
*   gvsig@gva.es
*      www.gvsig.gva.es
*
*    or
*
*   IVER T.I. S.A
*   Salamanca 50
*   46005 Valencia
*   Spain
*
*   +34 963163400
*   dac@iver.es
*/
package es.gva.cit.catalogClient.languages;
import java.util.Iterator;
import java.util.StringTokenizer;
import java.util.Vector;

/**
 * All classes that implement a "Language" must to inherit of this class
 * 
 * 
 * @author Jorge Piera Llodra (piera_jor@gva.es)
 */
public abstract class AbstractGeneralLanguage implements ILanguages {

/**
 * 
 * 
 */
    protected String currentQuery = null;

/**
 * 
 * 
 */
    protected String currentClause = null;

/**
 * Divide a phrase in lines
 * 
 * @param concordancia If is 'E' (exact) don't divide
 * 
 * @return Iteraror
 * A set of words
 * @param line phrase to search
 * @param titleKeys 
 */
    public Iterator parseValues(String line, String titleKeys) {        
        Vector values = new Vector();
        
        if (titleKeys == null){
        	titleKeys = "E";
        }
        
        if (titleKeys.equals("E")) {
            values.add(line);
            return values.iterator();
        }
        StringTokenizer doubleQuotesTokenizer = new StringTokenizer(line, "\"",
                true);
        boolean inside = false;
        while (doubleQuotesTokenizer.hasMoreTokens()) {
            String token = doubleQuotesTokenizer.nextToken();
            if (token.equals("\"")) {
                inside = !inside;
            } else if (inside) {
                values.add(token);
            } else {
                StringTokenizer spaceTokenizer = new StringTokenizer(token, " ");
                while (spaceTokenizer.hasMoreTokens()) {
                    String value = spaceTokenizer.nextToken();
                    values.add(value);
                }
            }
        }
        return values.iterator();
    } 

/**
 * Return logic operators
 * 
 * 
 * @return Or or And
 * @param titleKeys E,A o Y --> Exact, All, anY
 */
    public String getOperator(String titleKeys) {        
    	if (titleKeys == null){
    		titleKeys = "E";
    	} 
    	if (titleKeys.equals("Y")) {
            return "Or";
        } else {
            return "And";
        }
    } 
 }