com.panet.imeta.job.entry.validator.NotBlankValidator.java Source code

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Here is the source code for com.panet.imeta.job.entry.validator.NotBlankValidator.java

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/*
 * Copyright (c) 2007 Pentaho Corporation.  All rights reserved. 
 * This software was developed by Pentaho Corporation and is provided under the terms 
 * of the GNU Lesser General Public License, Version 2.1. You may not use 
 * this file except in compliance with the license. If you need a copy of the license, 
 * please go to http://www.gnu.org/licenses/lgpl-2.1.txt. The Original Code is Pentaho 
 * Data Integration.  The Initial Developer is Pentaho Corporation.
 *
 * Software distributed under the GNU Lesser Public License is distributed on an "AS IS" 
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to 
 * the license for the specific language governing your rights and limitations.
*/
package com.panet.imeta.job.entry.validator;

import java.util.List;

import org.apache.commons.validator.GenericValidator;
import org.apache.commons.validator.util.ValidatorUtils;

import com.panet.imeta.core.CheckResultInterface;
import com.panet.imeta.core.CheckResultSourceInterface;

/**
 * Fails if the field's value is either <code>null</code>, an empty string, or a string containing only whitespace.
 *
 * @author mlowery
 */
public class NotBlankValidator implements JobEntryValidator {

    public static final NotBlankValidator INSTANCE = new NotBlankValidator();

    private static final String VALIDATOR_NAME = "notBlank"; //$NON-NLS-1$

    public boolean validate(CheckResultSourceInterface source, String propertyName,
            List<CheckResultInterface> remarks, ValidatorContext context) {
        String value = ValidatorUtils.getValueAsString(source, propertyName);
        if (GenericValidator.isBlankOrNull(value)) {
            JobEntryValidatorUtils.addFailureRemark(source, propertyName, VALIDATOR_NAME, remarks,
                    JobEntryValidatorUtils.getLevelOnFail(context, VALIDATOR_NAME));
            return false;
        } else {
            return true;
        }
    }

    public String getName() {
        return VALIDATOR_NAME;
    }

}