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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.messagebus.network;
import com.yahoo.messagebus.Message;
import com.yahoo.messagebus.Protocol;
import com.yahoo.messagebus.Reply;
import com.yahoo.messagebus.ReplyHandler;
import com.yahoo.text.Utf8Array;
import com.yahoo.text.Utf8String;
/**
* A network owner is the object that instantiates and uses a network. The API to send messages
* across the network is part of the Network interface, whereas this interface exposes the required
* functionality of a network owner to be able to decode and deliver incoming messages.
*
* @author <a href="mailto:havardpe@yahoo-inc.com">Haavard Pettersen</a>
*/
public interface NetworkOwner {
/**
* All messages are sent across the network with its accompanying protocol name so that it can be decoded at the
* receiving end. The network queries its owner through this function to resolve the protocol from its name.
*
* @param name The name of the protocol to return.
* @return The named protocol.
*/
public Protocol getProtocol(Utf8Array name);
/**
* All messages that arrive in the network layer is passed to its owner through this function.
*
* @param message The message that just arrived from the network.
* @param session The name of the session that is the recipient of the request.
*/
public void deliverMessage(Message message, String session);
/**
* All replies that arrive in the network layer is passed through this to unentangle it from the network thread.
*
* @param reply The reply that just arrived from the network.
* @param handler The handler that is to receive the reply.
*/
public void deliverReply(Reply reply, ReplyHandler handler);
}
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