/*
* Copyright 2004-2005 the original author or authors.
*
* 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 org.springmodules.validation.valang.functions;
import java.util.regex.Pattern;
/**
* Email function. Takes one argument. Converts the argument to a string using the <code>toString()</code> method, and
* checks whether the returned string is a valid email address.
*
* @author Uri Boness
* @since May 26, 2006
*/
public class EmailFunction extends AbstractFunction {
private static final Pattern pattern = Pattern.compile("^(([A-Za-z0-9]+_+)|([A-Za-z0-9]+\\-+)|([A-Za-z0-9]+\\.+)|([A-Za-z0-9]+\\++))*[A-Za-z0-9]+@((\\w+\\-+)|(\\w+\\.))*\\w{1,63}\\.[a-zA-Z]{2,6}$");
public EmailFunction(Function[] arguments, int line, int column) {
super(arguments, line, column);
definedExactNumberOfArguments(1);
}
protected Object doGetResult(Object target) throws Exception {
Object value = getArguments()[0].getResult(target);
String email = value.toString();
return (pattern.matcher(email).matches()) ? Boolean.TRUE : Boolean.FALSE;
}
}