Package org.apache.qpid.transport.network

Source Code of org.apache.qpid.transport.network.ConnectionBinding

/*
*
* 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.transport.network;

import org.apache.qpid.transport.Binding;
import org.apache.qpid.transport.Connection;
import org.apache.qpid.transport.ConnectionDelegate;
import org.apache.qpid.transport.ConnectionListener;
import org.apache.qpid.transport.Receiver;
import org.apache.qpid.transport.Sender;
import org.apache.qpid.transport.network.security.sasl.SASLReceiver;
import org.apache.qpid.transport.network.security.sasl.SASLSender;

import java.nio.ByteBuffer;

/**
* ConnectionBinding
*
*/

public abstract class ConnectionBinding
    implements Binding<Connection,ByteBuffer>
{

    public static Binding<Connection,ByteBuffer> get(final Connection connection)
    {
        return new ConnectionBinding()
        {
            public Connection connection()
            {
                return connection;
            }
        };
    }

    public static Binding<Connection,ByteBuffer> get(final ConnectionDelegate delegate)
    {
        return new ConnectionBinding()
        {
            public Connection connection()
            {
                Connection conn = new Connection();
                conn.setConnectionDelegate(delegate);
                return conn;
            }
        };
    }

    public static final int MAX_FRAME_SIZE = 64 * 1024 - 1;

    public abstract Connection connection();

    public Connection endpoint(Sender<ByteBuffer> sender)
    {
        Connection conn = connection();

        if (conn.getConnectionSettings() != null &&
            conn.getConnectionSettings().isUseSASLEncryption())
        {
            sender = new SASLSender(sender);
            conn.addConnectionListener((ConnectionListener)sender);
        }
       
        // XXX: hardcoded max-frame
        Disassembler dis = new Disassembler(sender, MAX_FRAME_SIZE);
        conn.setSender(dis);
        return conn;
    }

    public Receiver<ByteBuffer> receiver(Connection conn)
    {
        if (conn.getConnectionSettings() != null &&
            conn.getConnectionSettings().isUseSASLEncryption())
        {
            SASLReceiver receiver = new SASLReceiver(new InputHandler(new Assembler(conn)));
            conn.addConnectionListener((ConnectionListener)receiver);
            return receiver;
        }
        else
        {
            return new InputHandler(new Assembler(conn));
        }
    }

}
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