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Struts example source code file (ConversionErrorFieldValidator.java)

This example Struts source code file (ConversionErrorFieldValidator.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Struts tags/keywords

actioncontext, actioncontext, conversionerrorfieldvalidator, map, map, object, object, override, repopulateconversionerrorfieldvalidatorsupport, string, string, util, validationexception

The Struts ConversionErrorFieldValidator.java source code

/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.opensymphony.xwork2.validator.validators;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.conversion.impl.XWorkConverter;
import com.opensymphony.xwork2.validator.ValidationException;

import java.util.Map;


/**
 * <!-- START SNIPPET: javadoc -->
 * Field Validator that checks if a conversion error occured for this field.
 * <!-- END SNIPPET: javadoc -->
 * <p/>
 * <!-- START SNIPPET: parameters -->
 * <ul>
 *     <li>fieldName - The field name this validator is validating. Required if using Plain-Validator Syntax otherwise not required
 * </ul>
 * <!-- END SNIPPET: parameters -->
 *
 * <!-- START SNIPPET: example -->
 * <pre>
 *     <!-- Plain Validator Syntax -->
 *     <validator type="conversion">
 *     		<param name="fieldName">myField</param>
 *          <message>Conversion Error Occurred</message>
 *     </validator>
 *      
 *     <!-- Field Validator Syntax -->
 *     <field name="myField">
 *        <field-validator type="conversion">
 *           <message>Conversion Error Occurred</message>
 *        </field-validator>
 *     </field>
 * </pre>
 * <!-- END SNIPPET: example -->
 *
 * @author Jason Carreira
 * @author tm_jee
 * 
 * @version $Date $Id: ConversionErrorFieldValidator.java 894090 2009-12-27 18:18:29Z martinc $
 */
public class ConversionErrorFieldValidator extends RepopulateConversionErrorFieldValidatorSupport {

    /**
     * The validation implementation must guarantee that setValidatorContext will
     * be called with a non-null ValidatorContext before validate is called.
     *
     * @param object
     * @throws ValidationException
     */
    @Override
    public void doValidate(Object object) throws ValidationException {
        String fieldName = getFieldName();
        String fullFieldName = getValidatorContext().getFullFieldName(fieldName);
        ActionContext context = ActionContext.getContext();
        Map<String, Object> conversionErrors = context.getConversionErrors();
        
        if (conversionErrors.containsKey(fullFieldName)) {
            if ((defaultMessage == null) || ("".equals(defaultMessage.trim()))) {
                defaultMessage = XWorkConverter.getConversionErrorMessage(fullFieldName, context.getValueStack());
            }
            
            addFieldError(fieldName, object);
        }
    }
    
}

Other Struts examples (source code examples)

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