/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2006 Sun Microsystems, Inc.
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*/
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package org.opends.server.changelog;
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import java.io.IOException;
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import java.util.zip.DataFormatException;
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import org.opends.server.synchronization.SynchronizationMessage;
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/**
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* The ProtocolSession interface should be implemented by a class that
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* implement the send/reception part of the Multimaster synchronization
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* protocol.
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*
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* This interface is designed to make easy the move from one format
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* of the SynchronizationMessage on the wire to another format.
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*/
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public interface ProtocolSession
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{
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/**
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* This method is called when the session with the remote must be closed.
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* It must
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* This object won't be used anymore after this method is called.
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*
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* @throws IOException If an error happen during the close process.
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*/
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public abstract void close() throws IOException;
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/**
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* This method is called when a SynchronizationMessage must be sent to
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* the remote entity.
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*
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* It can be called by several threads and must implement appropriate
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* synchronization (typically, this method or a part of it should be
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* synchronized).
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*
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* @param msg The SynchronizationMessage that must be sent.
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* @throws IOException If an IO error happen during the publish process.
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*/
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public abstract void publish(SynchronizationMessage msg)
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throws IOException;
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/**
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* Attempt to receive a SynchronizationMessage.
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* This method should block the calling thread until a
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* SynchronizationMessage is available or until an error condition.
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*
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* This method can only be called by a single thread and therefore does not
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* neet to implement any synchronization.
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*
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* @return The SynchronizationMessage that was received.
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* @throws IOException When error happened durin IO process.
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* @throws ClassNotFoundException When the data received does extend the
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* SynchronizationMessage class.
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* @throws DataFormatException When the data received is not formatted as a
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* SynchronizationMessage.
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*/
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public abstract SynchronizationMessage receive()
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throws IOException, ClassNotFoundException,
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DataFormatException;
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/**
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* Retrieve the IP address of the remote server.
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*
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* @return The IP address of the remote server.
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*/
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public abstract String getRemoteAddress();
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}
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