/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2006-2010 Sun Microsystems, Inc.
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* Portions Copyright 2011-2015 ForgeRock AS.
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*/
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package org.opends.server.replication.protocol;
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/**
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* The version utility class for the replication protocol.
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*/
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public class ProtocolVersion
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{
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/**
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* The constant for the first historical version of the replication protocol.
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*/
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public static final short REPLICATION_PROTOCOL_V1 = 1;
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/**
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* The constant for the real value of the first historical version of the
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* replication protocol (was used in start messages only).
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*/
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public static final short REPLICATION_PROTOCOL_V1_REAL = 49;
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/**
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* The constant for the second version of the replication protocol.
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* <ul>
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* <li>Add fields in the header for assured replication.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V2 = 2;
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/**
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* The constant for the 3rd version of the replication protocol.
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* <ul>
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* <li>Add messages for remote ECL : not used as of today.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V3 = 3;
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/**
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* The constant for the 4th version of the replication protocol.
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* <ul>
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* <li>Add to the body of the ADD/MOD/MODDN/DEL msgs, a list of attribute for
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* ECL entry attributes.</li>
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* <li>Modified algorithm for choosing a RS to connect to: introduction of a
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* ReplicationServerDSMsg message.</li>
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* <li>also added of the server URL in RSInfo of TopologyMsg</li>
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* <li>Introduction of a StopMsg for proper connections ending.</li>
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* <li>Initialization failover/flow control</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V4 = 4;
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/**
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* The constant for the 5th version of the replication protocol.
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* <ul>
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* <li>Add support for wild-cards in change log included attributes</li>
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* <li>Add support for specifying additional included attributes for deletes</li>
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* <li>See OPENDJ-194.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V5 = 5;
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/**
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* The constant for the 6th version of the replication protocol.
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* <ul>
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* <li>include DS local URL in the DSInfo of TopologyMsg.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V6 = 6;
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/**
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* The constant for the 7th version of the replication protocol.
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* <ul>
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* <li>compact encoding for length, CSNs, and server IDs.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V7 = 7;
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/**
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* The constant for the 8th version of the replication protocol.
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* <ul>
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* <li>New ReplicaOfflineMsg.</li>
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* </ul>
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*/
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public static final short REPLICATION_PROTOCOL_V8 = 8;
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/**
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* The replication protocol version used by the instance of RS/DS in this VM.
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*/
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private static final short CURRENT_VERSION = REPLICATION_PROTOCOL_V8;
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/**
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* Gets the current version of the replication protocol.
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*
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* @return The current version of the protocol.
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*/
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public static short getCurrentVersion()
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{
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return CURRENT_VERSION;
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}
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/**
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* Specifies the oldest version of the protocol from the provided one
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* and the current one.
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*
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* @param version The version to be compared to the current one.
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* @return The minimal protocol version.
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*/
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public static short getCompatibleVersion(short version)
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{
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return version < CURRENT_VERSION ? version : CURRENT_VERSION;
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}
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}
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