org.devgateway.eudevfin.ui.common.validators.Field8CodeValidator.java Source code

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Here is the source code for org.devgateway.eudevfin.ui.common.validators.Field8CodeValidator.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.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 Multilateral ODA 8/9. 
 * Channel and Code of Delivery Name only the following code and its subcodes 40000
 */
public class Field8CodeValidator extends Behavior implements IValidator<Category> {

    private static final long serialVersionUID = 7038929517889232434L;
    public static final String REGEX_MULTILATERAL_CHANNEL_CODE = "4[0-9]{4}";
    private Pattern pattern = Pattern.compile(REGEX_MULTILATERAL_CHANNEL_CODE);
    private String transactionType;
    private boolean reverse = false;

    public Field8CodeValidator(String transactionType) {
        this.transactionType = transactionType;
    }

    public Pattern getPattern() {
        return pattern;
    }

    @Override
    public void validate(IValidatable<Category> validatable) {
        if (!Strings.isEmpty(transactionType)
                && (Strings.isEqual(transactionType, SB.MULTILATERAL_ODA_ADVANCE_QUESTIONNAIRE)
                        || Strings.isEqual(transactionType, SB.MULTILATERAL_ODA_CRS))) {
            // Check value against pattern
            if (validatable.getValue() != null
                    && pattern.matcher(validatable.getValue().getCode()).matches() == reverse) {
                ValidationError error = new ValidationError(this);
                error.setVariable("pattern", pattern.pattern());
                validatable.error(decorate(error, validatable));
            }
        }
    }

    public Field8CodeValidator 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;
    }

}