/*
|
* CDDL HEADER START
|
*
|
* The contents of this file are subject to the terms of the
|
* Common Development and Distribution License, Version 1.0 only
|
* (the "License"). You may not use this file except in compliance
|
* with the License.
|
*
|
* You can obtain a copy of the license at
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
|
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
|
* See the License for the specific language governing permissions
|
* and limitations under the License.
|
*
|
* When distributing Covered Code, include this CDDL HEADER in each
|
* file and include the License file at
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
|
* add the following below this CDDL HEADER, with the fields enclosed
|
* by brackets "[]" replaced with your own identifying information:
|
* Portions Copyright [yyyy] [name of copyright owner]
|
*
|
* CDDL HEADER END
|
*
|
*
|
* Portions Copyright 2006-2007 Sun Microsystems, Inc.
|
*/
|
package org.opends.server.replication.protocol;
|
|
import java.io.IOException;
|
import java.net.SocketException;
|
import java.util.zip.DataFormatException;
|
|
/**
|
* The ProtocolSession interface should be implemented by a class that
|
* implement the send/reception part of the Multimaster synchronization
|
* protocol.
|
*
|
* This interface is designed to make easy the move from one format
|
* of the SynchronizationMessage on the wire to another format.
|
*/
|
public interface ProtocolSession
|
{
|
|
/**
|
* This method is called when the session with the remote must be closed.
|
* This object won't be used anymore after this method is called.
|
*
|
* @throws IOException If an error happen during the close process.
|
*/
|
public abstract void close() throws IOException;
|
|
/**
|
* This method is called when a SynchronizationMessage must be sent to
|
* the remote entity.
|
*
|
* It can be called by several threads and must implement appropriate
|
* synchronization (typically, this method or a part of it should be
|
* synchronized).
|
*
|
* @param msg The SynchronizationMessage that must be sent.
|
* @throws IOException If an IO error happen during the publish process.
|
*/
|
public abstract void publish(SynchronizationMessage msg)
|
throws IOException;
|
|
/**
|
* Attempt to receive a SynchronizationMessage.
|
* This method should block the calling thread until a
|
* SynchronizationMessage is available or until an error condition.
|
*
|
* This method can only be called by a single thread and therefore does not
|
* neet to implement any synchronization.
|
*
|
* @return The SynchronizationMessage that was received.
|
* @throws IOException When error happened durin IO process.
|
* @throws ClassNotFoundException When the data received does extend the
|
* SynchronizationMessage class.
|
* @throws DataFormatException When the data received is not formatted as a
|
* SynchronizationMessage.
|
*/
|
public abstract SynchronizationMessage receive()
|
throws IOException, ClassNotFoundException,
|
DataFormatException;
|
|
/**
|
* Retrieve the IP address of the remote server.
|
*
|
* @return The IP address of the remote server.
|
*/
|
public abstract String getRemoteAddress();
|
|
|
/**
|
* Set a timeout value.
|
* With this option set to a non-zero value, calls to the receive() method
|
* block for only this amount of time after which a
|
* java.net.SocketTimeoutException is raised.
|
* The Broker is valid and useable even after such an Exception is raised.
|
*
|
* @param timeout the specified timeout, in milliseconds.
|
* @throws SocketException if there is an error in the underlying protocol,
|
* such as a TCP error.
|
*/
|
public abstract void setSoTimeout(int timeout) throws SocketException;
|
|
|
|
/**
|
* Gets the time the last synchronization message was published on this
|
* session.
|
* @return The timestamp in milliseconds of the last message published.
|
*/
|
public abstract long getLastPublishTime();
|
|
|
|
/**
|
* Gets the time the last synchronization message was received on this
|
* session.
|
* @return The timestamp in milliseconds of the last message received.
|
*/
|
public abstract long getLastReceiveTime();
|
}
|
