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 //  The contents of this file are subject to the Mozilla Public License
 //  Version 1.1 (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.mozilla.org/MPL/
 //
 //  Software distributed under the License is distributed on an "AS IS"
 //  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 //  the License for the specific language governing rights and
 //  limitations under the License.
//
//  The Original Code is RabbitMQ.
//
//  The Initial Developer of the Original Code is VMware, Inc.
//  Copyright (c) 2007-2011 VMware, Inc.  All rights reserved.
//
package com.rabbitmq.client.impl;
Interface to a frame handler.

Concurrency
Implementations must be thread-safe, and not allow frames to be interleaved, either while reading or writing.

public interface FrameHandler {
    
Retrieve address of peer.
    InetAddress getAddress();

    
Retrieve port number of peer.
    int getPort();

    
Set the underlying socket's read timeout in milliseconds, if applicable.

Parameters:
timeoutMs The timeout in milliseconds
    void setTimeout(int timeoutMsthrows SocketException;

    
Get the underlying socket's read timeout in milliseconds.

Returns:
The timeout in milliseconds
    int getTimeout() throws SocketException;

    
Send the initial connection header, thus kickstarting the AMQP protocol version negotiation process and putting the underlying connection in a state such that the next layer of startup can proceed.

Throws:
java.io.IOException if there is a problem accessing the connection
    void sendHeader() throws IOException;

    
Read a Frame from the underlying data connection.

Returns:
an incoming Frame, or null if there is none
Throws:
java.io.IOException if there is a problem accessing the connection
java.net.SocketTimeoutException if the underlying read times out
    Frame readFrame() throws IOException;

    
Write a Frame to the underlying data connection.

Parameters:
frame the Frame to transmit
Throws:
java.io.IOException if there is a problem accessing the connection
    void writeFrame(Frame framethrows IOException;

    
Close the underlying data connection (complaint not permitted).
    void close();
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