/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2011, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.as.controller.operations.validation;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.jboss.as.controller.logging.ControllerLogger;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;

/**
 * Validates that a value can resolve to a multicast address.
 *
 * @author Brian Stansberry (c) 2011 Red Hat Inc.
 */
public class MulticastAddressValidator extends StringLengthValidator {

    public MulticastAddressValidator(final boolean allowNull, final boolean allowExpressions) {
        super(1, allowNull, allowExpressions);
    }

    @Override
    public void validateParameter(String parameterName, ModelNode value) throws OperationFailedException {
        super.validateParameter(parameterName, value);

        if (value.isDefined() && value.getType() != ModelType.EXPRESSION) {
            String inetAddr = value.asString();
            try {
                final InetAddress mcastAddr = InetAddress.getByName(inetAddr);
                if (!mcastAddr.isMulticastAddress()) {
                    throw ControllerLogger.ROOT_LOGGER.invalidMulticastAddress(inetAddr, parameterName);
                }
            } catch (final UnknownHostException e) {
                throw ControllerLogger.ROOT_LOGGER.unknownMulticastAddress(e, inetAddr, parameterName);
            }

        }
    }
}
