org.devgateway.eudevfin.ui.common.validators.Field12CodeValidator.java Source code

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Here is the source code for org.devgateway.eudevfin.ui.common.validators.Field12CodeValidator.java

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/*******************************************************************************
 * Copyright (c) 2014 Development Gateway.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 *******************************************************************************/

/**
 *
 */
package org.devgateway.eudevfin.ui.common.validators;

import java.util.regex.Pattern;

import org.apache.wicket.behavior.Behavior;
import org.apache.wicket.util.string.Strings;
import org.apache.wicket.validation.IValidatable;
import org.apache.wicket.validation.IValidationError;
import org.apache.wicket.validation.IValidator;
import org.apache.wicket.validation.ValidationError;
import org.devgateway.eudevfin.metadata.common.domain.Category;
import org.devgateway.eudevfin.ui.common.temporary.SB;

/**
 * @author mihai
 * 
 *         Advance Questionnaire Bilateral and Multilateral ODA forms 12. Type
 *         of Finance only the following codes and their subcodes 100, 300, 400,
 *         500, 600
 */
public class Field12CodeValidator extends Behavior implements IValidator<Category> {

    private static final long serialVersionUID = 6723482301156822226L;
    public static final String REGEX = "(1|3|4|5|6)[0-9]{2}";
    private Pattern pattern = Pattern.compile(REGEX);
    private String transactionType;
    private boolean reverse = false;

    public Field12CodeValidator(String transactionType) {
        this.transactionType = transactionType;
    }

    public Pattern getPattern() {
        return pattern;
    }

    @Override
    public void validate(IValidatable<Category> validatable) {

        if (!Strings.isEmpty(transactionType)) {
            if (validatable.getValue() != null && validatable.getValue().isLastAncestor()) {
                ValidationError error = new ValidationError(this);
                validatable.error(decorateParentError(error, validatable));
            }
        }

        if ((Strings.isEqual(transactionType, SB.BILATERAL_ODA_ADVANCE_QUESTIONNAIRE)
                || Strings.isEqual(transactionType, SB.MULTILATERAL_ODA_ADVANCE_QUESTIONNAIRE))) {
            // Check value against pattern
            if (validatable.getValue() != null
                    && pattern.matcher(validatable.getValue().getDisplayableCode()).matches() == reverse) {
                ValidationError error = new ValidationError(this);
                error.setVariable("pattern", pattern.pattern());
                validatable.error(decorate(error, validatable));
            }
        }
    }

    protected IValidationError decorateParentError(ValidationError error, IValidatable<Category> validatable) {
        // TODO Auto-generated method stub
        return error;
    }

    public Field12CodeValidator reverse() {
        reverse = true;
        return this;
    }

    /**
     * Allows subclasses to decorate reported errors
     * 
     * @param error
     * @param validatable
     * @return decorated error
     */
    protected ValidationError decorate(ValidationError error, IValidatable<Category> validatable) {
        return error;
    }

}