ca.nines.ise.validator.node.attribute.StringAttributeValidator.java Source code

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Here is the source code for ca.nines.ise.validator.node.attribute.StringAttributeValidator.java

Source

/*
 * Copyright (C) 2014 Michael Joyce <ubermichael@gmail.com>
 *
 * 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 version 2.
 *
 * 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.
 */
package ca.nines.ise.validator.node.attribute;

import ca.nines.ise.validator.node.*;
import ca.nines.ise.log.Message;
import ca.nines.ise.annotation.ErrorCode;
import ca.nines.ise.log.Log;
import ca.nines.ise.node.TagNode;
import ca.nines.ise.schema.Attribute;
import org.apache.commons.lang3.StringUtils;

/**
 * Validate a string attribute value. A string is valid if it contains at least
 * one non-whitespace character.
 * <p>
 * @author Michael Joyce <ubermichael@gmail.com>
 */
public class StringAttributeValidator implements AttributeValidator {

    /**
     * Validate a string attribute.
     * <p>
     * Validations performed:
     * <p>
     * <ul>
     * <li>The string must include at least one non-whitespace character.</li>
     * </ul>
     * <p>
     * @param n TagNode to validate
     * @param attr attribute to validate against
     */
    @ErrorCode(code = { "validator.attribute.badstring" })
    @Override
    public void validate(TagNode n, Attribute attr) {
        String value = n.getAttribute(attr.getName());
        if (StringUtils.isWhitespace(value)) {
            Message m = Message.builder("validator.attribute.badstring").fromNode(n)
                    .addNote("Attribute " + attr.getName() + "=\"" + value + "\" only contains whitespace.")
                    .build();
            Log.addMessage(m);
        }
    }

}