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/*
* Copyright (c) 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.impl.ior.iiop;
import org.omg.CORBA_2_3.portable.OutputStream;
import com.sun.corba.se.impl.orbutil.ORBConstants;
import com.sun.corba.se.impl.orbutil.ORBUtility;
import com.sun.corba.se.impl.protocol.giopmsgheaders.Message;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.ior.TaggedComponentBase;
/**
* Tagged component that contains a value that indicates the Java
* serialization version supported by the ORB.
*
* ORB Java serialization uses IIOP as the transport protocol, but uses
* Java serialization mechanism and its accompanying encodings, instead
* of IIOP CDR serialization mechanism. Java serialization is generally
* observed to be faster than CDR.
*/
public class JavaSerializationComponent extends TaggedComponentBase {
private byte version;
private static JavaSerializationComponent singleton;
public static JavaSerializationComponent singleton() {
if (singleton == null) {
synchronized (JavaSerializationComponent.class) {
singleton =
new JavaSerializationComponent(Message.JAVA_ENC_VERSION);
}
}
return singleton;
}
public JavaSerializationComponent(byte version) {
this.version = version;
}
public byte javaSerializationVersion() {
return this.version;
}
public void writeContents(OutputStream os) {
os.write_octet(version);
}
public int getId() {
return ORBConstants.TAG_JAVA_SERIALIZATION_ID;
}
public boolean equals(Object obj) {
if (!(obj instanceof JavaSerializationComponent)) {
return false;
}
JavaSerializationComponent other = (JavaSerializationComponent) obj;
return this.version == other.version;
}
public int hashCode() {
return this.version;
}
}
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