/*
* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.corba.se.spi.ior.iiop ;
import com.sun.corba.se.spi.ior.IOR ;
import com.sun.corba.se.spi.ior.iiop.IIOPProfile;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.orb.ORBVersion;
import com.sun.corba.se.spi.orb.ORBVersionFactory;
import com.sun.corba.se.impl.orbutil.ORBUtility;
import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;
public class GIOPVersion {
// Static fields
public static final GIOPVersion V1_0 = new GIOPVersion((byte)1, (byte)0);
public static final GIOPVersion V1_1 = new GIOPVersion((byte)1, (byte)1);
public static final GIOPVersion V1_2 = new GIOPVersion((byte)1, (byte)2);
public static final GIOPVersion V1_3 = new GIOPVersion((byte)1, (byte)3);
// Major version 13 indicates Java serialization,
// Minor version [00-FF] is the version number.
public static final GIOPVersion V13_XX =
new GIOPVersion((byte)13, (byte)Message.JAVA_ENC_VERSION);
public static final GIOPVersion DEFAULT_VERSION = V1_2;
public static final int VERSION_1_0 = 0x0100;
public static final int VERSION_1_1 = 0x0101;
public static final int VERSION_1_2 = 0x0102;
public static final int VERSION_1_3 = 0x0103;
public static final int VERSION_13_XX =
((0x0D << 8) & 0x0000FF00) | Message.JAVA_ENC_VERSION;
// Instance variables
private byte major = (byte) 0;
private byte minor = (byte) 0;
// Constructor
public GIOPVersion() {}
public GIOPVersion(byte majorB, byte minorB) {
this.major = majorB;
this.minor = minorB;
}
public GIOPVersion(int major, int minor) {
this.major = (byte)major;
this.minor = (byte)minor;
}
// Accessor methods
public byte getMajor() {
return this.major;
}
public byte getMinor() {
return this.minor;
}
// General methods
public boolean equals(GIOPVersion gv){
return gv.major == this.major && gv.minor == this.minor ;
}
public boolean equals(Object obj) {
if (obj != null && (obj instanceof GIOPVersion))
return equals((GIOPVersion)obj);
else
return false;
}
public int hashCode()
{
return 37*major + minor ;
}
public boolean lessThan(GIOPVersion gv) {
if (this.major < gv.major) {
return true;
} else if (this.major == gv.major) {
if (this.minor < gv.minor) {
return true;
}
}
return false;
}
public int intValue()
{
return (major << 8 | minor);
}
public String toString()
{
return major + "." + minor;
}
public static GIOPVersion getInstance(byte major, byte minor)
{
switch(((major << 8) | minor)) {
case VERSION_1_0:
return GIOPVersion.V1_0;
case VERSION_1_1:
return GIOPVersion.V1_1;
case VERSION_1_2:
return GIOPVersion.V1_2;
case VERSION_1_3:
return GIOPVersion.V1_3;
case VERSION_13_XX:
return GIOPVersion.V13_XX;
default:
return new GIOPVersion(major, minor);
}
}
public static GIOPVersion parseVersion(String s)
{
int dotIdx = s.indexOf('.');
if (dotIdx < 1 || dotIdx == s.length() - 1)
throw new NumberFormatException("GIOP major, minor, and decimal point required: " + s);
int major = Integer.parseInt(s.substring(0, dotIdx));
int minor = Integer.parseInt(s.substring(dotIdx + 1, s.length()));
return GIOPVersion.getInstance((byte)major, (byte)minor);
}
/**
* This chooses the appropriate GIOP version.
*
* @return the GIOP version 13.00 if Java serialization is enabled, or
* smallest(profGIOPVersion, orbGIOPVersion)
*/
public static GIOPVersion chooseRequestVersion(ORB orb, IOR ior ) {
GIOPVersion orbVersion = orb.getORBData().getGIOPVersion();
IIOPProfile prof = ior.getProfile() ;
GIOPVersion profVersion = prof.getGIOPVersion();
// Check if the profile is from a legacy Sun ORB.
ORBVersion targetOrbVersion = prof.getORBVersion();
if (!(targetOrbVersion.equals(ORBVersionFactory.getFOREIGN())) &&
targetOrbVersion.lessThan(ORBVersionFactory.getNEWER())) {
// we are dealing with a SUN legacy orb which emits 1.1 IORs,
// in spite of being able to handle only GIOP 1.0 messages.
return V1_0;
}
// Now the target has to be (FOREIGN | NEWER*)
byte prof_major = profVersion.getMajor();
byte prof_minor = profVersion.getMinor();
byte orb_major = orbVersion.getMajor();
byte orb_minor = orbVersion.getMinor();
if (orb_major < prof_major) {
return orbVersion;
} else if (orb_major > prof_major) {
return profVersion;
} else { // both major version are the same
if (orb_minor <= prof_minor) {
return orbVersion;
} else {
return profVersion;
}
}
}
public boolean supportsIORIIOPProfileComponents()
{
return getMinor() > 0 || getMajor() > 1;
}
// IO methods
public void read(org.omg.CORBA.portable.InputStream istream) {
this.major = istream.read_octet();
this.minor = istream.read_octet();
}
public void write(org.omg.CORBA.portable.OutputStream ostream) {
ostream.write_octet(this.major);
ostream.write_octet(this.minor);
}
}