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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();
+ }
+ }
+