cluster/src/org/apache/qpid/server/cluster/MethodHandlerRegistry.java


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/*
 *
 * 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.qpid.server.cluster;

import org.apache.qpid.framing.AMQMethodBody;
import org.apache.qpid.server.state.StateAwareMethodListener;

import java.util.HashMap;
import java.util.Map;

public class MethodHandlerRegistry
{
    private final Map<Class<? extends AMQMethodBody>, StateAwareMethodListener<? extends AMQMethodBody>> registry =
            new HashMap<Class<? extends AMQMethodBody>, StateAwareMethodListener<? extends AMQMethodBody>>();

    public <A extends AMQMethodBody, B extends Class<A>> MethodHandlerRegistry addHandler(B type, StateAwareMethodListener<A> handler)
    {
        registry.put(type, handler);
        return this;
    }

    public <B extends AMQMethodBody> StateAwareMethodListener<B> getHandler(B frame)
    {
        return (StateAwareMethodListener<B>) registry.get(frame.getClass());
    }
}