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/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/*************************************************************
* <pre>
*
* PURPOSE:
*
*
*
* COMMENTS:
*
* </pre>
*********************************************************** */
package rasj.rnp;
import java.util.*;
import java.io.*;
public class RnpMessageHeader
{
int protocolId;
byte messageEndianness;
byte desiredEndianness;
byte majorVersion;
byte minorVersion;
int totalMessageLength;
int nrFragments;
int serverType;
int authInfoStart;
int authInfoLength;
int comprInfoStart;
int comprInfoLength;
int dataStart;
int dataLength;
//int _unused[5];
public static final int length = 64;
RnpMessageHeader(int nServerType)
{
protocolId = Rnp.rnpProtocolId;
messageEndianness = 0; // big endianness
desiredEndianness = 0; // big also
majorVersion = 1;
minorVersion = 0;
totalMessageLength = length;
nrFragments = 0;
serverType = nServerType;
authInfoStart = 0;
authInfoLength = 0;
comprInfoStart = 0;
comprInfoLength = 0;
dataStart = length;
dataLength = 0;
}
int countFragments()
{
return nrFragments;
}
void print()
{
System.out.println("RNP Header");
System.out.println(" totalLength=" + totalMessageLength);
System.out.println(" nrFragments=" + nrFragments);
System.out.println(" serverType=" + serverType);
System.out.println(" dataStart=" + dataStart);
System.out.println(" dataLength=" + dataLength);
System.out.println("");
}
void write(DataOutputStream dataStream) throws IOException
{
dataStream.writeInt(protocolId);
dataStream.writeByte(messageEndianness);
dataStream.writeByte(desiredEndianness);
dataStream.writeByte(majorVersion);
dataStream.writeByte(minorVersion);
dataStream.writeInt(totalMessageLength);
dataStream.writeInt(nrFragments);
dataStream.writeInt(serverType);
dataStream.writeInt(authInfoStart);
dataStream.writeInt(authInfoLength);
dataStream.writeInt(comprInfoStart);
dataStream.writeInt(comprInfoLength);
dataStream.writeInt(dataStart);
dataStream.writeInt(dataLength);
// the unused 5 ints
dataStream.writeInt(0);
dataStream.writeInt(0);
dataStream.writeInt(0);
dataStream.writeInt(0);
dataStream.writeInt(0);
}
void read(DataInputStream dataStream) throws IOException, RnpException
{
protocolId = dataStream.readInt();
messageEndianness = dataStream.readByte();
desiredEndianness = dataStream.readByte();
majorVersion = dataStream.readByte();
minorVersion = dataStream.readByte();
totalMessageLength = dataStream.readInt();
nrFragments = dataStream.readInt();
serverType = dataStream.readInt();
authInfoStart = dataStream.readInt();
authInfoLength = dataStream.readInt();
comprInfoStart = dataStream.readInt();
comprInfoLength = dataStream.readInt();
dataStart = dataStream.readInt();
dataLength = dataStream.readInt();
// the unused 5 ints
dataStream.readInt();
dataStream.readInt();
dataStream.readInt();
dataStream.readInt();
dataStream.readInt();
//verify();
}
}
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