| /* |
| * 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; |
| } |
| } |