OFVendorActionRegistry.java

/**
 *    Copyright 2013, Big Switch Networks, Inc.
 *
 *    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.openflow.protocol.factory;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/** Singleton registry object that holds a mapping from vendor ids to vendor-specific
 *  mapping factories. Threadsafe.
 *
 * @author Andreas Wundsam <andreas.wundsam@bigswitch.com>
 */
public class OFVendorActionRegistry {
    private static class InstanceHolder {
        private final static OFVendorActionRegistry instance = new OFVendorActionRegistry();
    }

    public static OFVendorActionRegistry getInstance() {
        return InstanceHolder.instance;
    }
    private final Map <Integer, OFVendorActionFactory> vendorActionFactories;

    public OFVendorActionRegistry() {
        vendorActionFactories = new ConcurrentHashMap<Integer, OFVendorActionFactory>();
    }

    public OFVendorActionFactory register(int vendorId, OFVendorActionFactory factory) {
        return vendorActionFactories.put(vendorId, factory);
    }

    public OFVendorActionFactory get(int vendorId) {
        return vendorActionFactories.get(vendorId);
    }


}