openaz-xacml-pap-admin/src/main/java/org/apache/openaz/xacml/admin/view/validators/IntegerValidator.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.openaz.xacml.admin.view.validators;

import com.vaadin.data.Validator;

public class IntegerValidator implements Validator {
	private static final long serialVersionUID = 1L;

	public IntegerValidator() {
	}

	@Override
	public void validate(Object value) throws InvalidValueException {
		if (value instanceof Integer) {
			return;
		}
		try {
			Integer.parseInt(value.toString());
		} catch (NumberFormatException e) {
			throw new InvalidValueException(e.getLocalizedMessage());
		}
	}
}