/*
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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 legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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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 legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* 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 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2013-2014 ForgeRock AS.
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*/
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package org.opends.server.replication.protocol;
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import java.util.zip.DataFormatException;
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/**
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* This message is used by LDAP or Replication Server that have been out of
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* credit for a while and want to check if the remote servers is able to accept
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* more messages.
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* <p>
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* A sending entity that is blocked because its send window is closed for a
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* while should create such a message to check that the window closure is valid.
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* <p>
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* An entity that received such a message should respond with a
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* {@link WindowMsg} indicating the current credit available.
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*/
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public class WindowProbeMsg extends ReplicationMsg
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{
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/**
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* Create a new WindowProbeMsg message.
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*/
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public WindowProbeMsg()
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{
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}
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/**
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* Creates a new WindowProbeMsg from its encoded form.
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*
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* @param in The byte array containing the encoded form of the
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* WindowMessage.
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* @throws DataFormatException If the byte array does not contain a valid
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* encoded form of the WindowMessage.
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*/
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public WindowProbeMsg(byte[] in) throws DataFormatException
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{
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// WindowProbeMsg LocalizableMessage only contains its type.
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if (in[0] != MSG_TYPE_WINDOW_PROBE)
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throw new DataFormatException("input is not a valid Window LocalizableMessage");
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public byte[] getBytes(short protocolVersion)
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{
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// WindowProbeMsg LocalizableMessage only contains its type.
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return new byte[] { MSG_TYPE_WINDOW_PROBE };
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}
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}
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