/**
 *
 */
package de.intevation.gnv.utils;

import org.apache.commons.validator.GenericValidator;
import org.apache.log4j.Logger;

import de.intevation.gnv.geobackend.util.DateUtils;

/**
 * @author Tim Englich <tim.englich@intevation.de>
 *
 */
public class InputValidator {
    /**
     * the logger, used to log exceptions and additonaly information
     */
    private static Logger log = Logger.getLogger(InputValidator.class);

    /**
     * Constructor
     */
    public InputValidator() {
        super();
    }
    
    public boolean isInputValid(String input, String type){
        log.debug("InputValidator.isInputValid " + input+ " "+type);
        boolean returnValue = false;
        String[] values = input.split(",");
        for (int i = 0; i < values.length; i++){
            boolean valid;
            if ("Integer".equalsIgnoreCase(type)){
                valid = GenericValidator.isInt(values[i].trim());
            }else if ("Double".equalsIgnoreCase(type)){
                    valid = GenericValidator.isDouble(values[i].trim());
            }else if ("String".equalsIgnoreCase(type)){
                valid = GenericValidator.matchRegexp(values[i], "[a-zA-Z0-9]"); // TODO: FIXME: VALIDATE REGEXP
            }else if ("Date".equalsIgnoreCase(type)){
                valid = GenericValidator.isDate(values[i].trim(), DateUtils.DATE_PATTERN, true);
            }else if ("Point".equalsIgnoreCase(type)){
                valid = GenericValidator.matchRegexp(values[i], "[0-9]"); // TODO: FIXME: VALIDATE REGEXP
            }else if ("AttributeName".equalsIgnoreCase(type)){
                valid = org.apache.commons.validator.GenericValidator.matchRegexp(values[i], "[a-zA-Z0-9]"); // TODO: FIXME: VALIDATE REGEXP
            }else{
                valid = false;
            }
            if (!valid){
                returnValue =  false;
                break;
            }else{
                returnValue = true;
            }
        }
        log.debug("Is valid? "+returnValue);
        return returnValue;
    }

}