gentools/templ.java/MethodRegistryClass.tmpl

&{MainRegistry.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.
 *
 */

/*
 * This file is auto-generated by ${GENERATOR} - do not modify.
 * Supported AMQP versions:
%{VLIST} *   ${major}-${minor}
 */
 
package org.apache.qpid.framing;

import org.apache.log4j.Logger;
import org.apache.mina.common.ByteBuffer;

public class MainRegistry
{
    private static final Logger _log = Logger.getLogger(MainRegistry.class);

    private static final int DEFAULT_MINOR_VERSION_COUNT = 10;
    private static final int DEFAULT_MAJOR_VERSION_COUNT = 10;
    
    private static VersionSpecificRegistry[][] _specificRegistries = new VersionSpecificRegistry[DEFAULT_MAJOR_VERSION_COUNT][];
    	
    static
    {
%{CLIST}	${reg_map_put_method}
    }
    
    public static AMQMethodBody get(short classID, short methodID, byte major, byte minor, ByteBuffer in, long size)
        throws AMQFrameDecodingException
    {
		VersionSpecificRegistry registry = getVersionSpecificRegistry(major, minor);
        AMQMethodBodyInstanceFactory bodyFactory = registry.getMethodBody(classID,methodID);
		
        if (bodyFactory == null)
        {
            throw new AMQFrameDecodingException(_log,
                "Unable to find a suitable decoder for class " + classID + " and method " +
                methodID + " in AMQP version " + major + "-" + minor + ".");
        }
        return bodyFactory.newInstance(major, minor, in, size);

	    
    }
	
	public static VersionSpecificRegistry getVersionSpecificRegistry(byte major, byte minor)
	{
		try
		{
			return _specificRegistries[(int)major][(int)minor];
		}
		catch (IndexOutOfBoundsException e)
		{
			return null;
		}
		catch (NullPointerException e)
		{
			return null;
		}
		
		
	}
    
	private static VersionSpecificRegistry addVersionSpecificRegistry(byte major, byte minor)
	{
		VersionSpecificRegistry[][] registries = _specificRegistries;
		if(major >= registries.length)
		{
			_specificRegistries = new VersionSpecificRegistry[(int)major + 1][];
			System.arraycopy(registries, 0, _specificRegistries, 0, registries.length);
			registries = _specificRegistries;
		}
		if(registries[major] == null)
		{
			registries[major] = new VersionSpecificRegistry[ minor >= DEFAULT_MINOR_VERSION_COUNT ? minor + 1 : DEFAULT_MINOR_VERSION_COUNT ];
		}
		else if(registries[major].length <= minor)
		{
			VersionSpecificRegistry[] minorArray = registries[major];
			registries[major] = new VersionSpecificRegistry[ minor + 1 ];
			System.arraycopy(minorArray, 0, registries[major], 0, minorArray.length);
			
		}
		
		VersionSpecificRegistry newRegistry = new VersionSpecificRegistry(major,minor);
		
		registries[major][minor] = newRegistry;
		
		return newRegistry;
	}
		
	private static void registerMethod(short classID, short methodID, byte major, byte minor, AMQMethodBodyInstanceFactory instanceFactory )
	{
		VersionSpecificRegistry registry = getVersionSpecificRegistry(major,minor);
		if(registry == null)
		{
			registry = addVersionSpecificRegistry(major,minor);
			
		}
		
		registry.registerMethod(classID, methodID, instanceFactory);
        
    }

    
}