/*
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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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* Copyright 2006-2009 Sun Microsystems, Inc.
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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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*/
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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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*/
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public static final short REPLICATION_PROTOCOL_V3 = 3;
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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 short currentVersion = -1;
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static
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{
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resetCurrentVersion();
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}
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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 currentVersion;
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}
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/**
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* For test purpose.
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* @param curVersion The provided current version.
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*/
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public static void setCurrentVersion(short curVersion)
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{
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currentVersion = curVersion;
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}
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/**
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* Resets the protocol version to the default value (the latest version).
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* For test purpose.
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*/
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public static void resetCurrentVersion()
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{
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currentVersion = REPLICATION_PROTOCOL_V3;
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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 minWithCurrent(short version)
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{
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short newVersion = (version < currentVersion ? version : currentVersion);
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return newVersion;
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}
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}
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