/*
* 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.validator.ValidationException;
import com.opensymphony.xwork2.util.URLUtil;
/**
* <!-- START SNIPPET: javadoc -->
*
* URLValidator checks that a given field is a String and a valid URL
*
* <!-- 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</li>
* </ul>
*
* <!-- END SNIPPET: parameters -->
*
* <p/>
*
* <pre>
* <!-- START SNIPPET: examples -->
* <validators>
* <!-- Plain Validator Syntax -->
* <validator type="url">
* <param name="fieldName">myHomePage</param>
* <message>Invalid homepage url</message>
* </validator>
*
* <!-- Field Validator Syntax -->
* <field name="myHomepage">
* <field-validator type="url">
* <message>Invalid homepage url</message>
* </field-validator>
* </field>
* </validators>
* <!-- END SNIPPET: examples -->
* </pre>
*
*
* @author $Author$
* @version $Date$ $Revision$
*/
public class URLValidator extends FieldValidatorSupport {
public void validate(Object object) throws ValidationException {
String fieldName = getFieldName();
Object value = this.getFieldValue(fieldName, object);
// if there is no value - don't do comparison
// if a value is required, a required validator should be added to the field
if (value == null || value.toString().length() == 0) {
return;
}
if (!(value.getClass().equals(String.class)) || !URLUtil.verifyUrl((String) value)) {
addFieldError(fieldName, object);
}
}
}