se.sics.ktoolbox.util.config.options.InetAddressOption.java Source code

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Here is the source code for se.sics.ktoolbox.util.config.options.InetAddressOption.java

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/*
 * Copyright (C) 2009 Swedish Institute of Computer Science (SICS) Copyright (C)
 * 2009 Royal Institute of Technology (KTH)
 *
 * KompicsToolbox is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package se.sics.ktoolbox.util.config.options;

import com.google.common.base.Optional;
import java.net.InetAddress;
import java.net.UnknownHostException;
import se.sics.kompics.config.Config;
import se.sics.ktoolbox.util.config.KConfigOption.Base;

/**
 * @author Alex Ormenisan <aaor@kth.se>
 */
public class InetAddressOption extends Base<InetAddress> {

    public InetAddressOption(String optionName) {
        super(optionName, InetAddress.class);
    }

    @Override
    public Optional<InetAddress> readValue(Config config) {
        Optional ip = config.readValue(name);

        if (ip.isPresent()) {
            if (ip.get() instanceof InetAddress) {
                return ip;
            } else if (ip.get() instanceof String) {
                try {
                    return Optional.of(InetAddress.getByName((String) ip.get()));
                } catch (UnknownHostException ex) {
                    throw new RuntimeException(ex);
                }
            }
        }
        return Optional.absent();
    }
}