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Java example source code file (LocateRequestMessage_1_2.java)

This example Java source code file (LocateRequestMessage_1_2.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

addressingdisposition, flag_no_frag_big_endian, locaterequestmessage_1_2, objectkey, orb, targetaddress

The LocateRequestMessage_1_2.java Java example source code

/*
 * Copyright (c) 2000, 2003, 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.protocol.giopmsgheaders;

import com.sun.corba.se.spi.ior.ObjectKey;

import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
import com.sun.corba.se.spi.orb.ORB;

/**
 * This implements the GIOP 1.2 LocateRequest header.
 *
 * @author Ram Jeyaraman 05/14/2000
 */

public final class LocateRequestMessage_1_2 extends Message_1_2
        implements LocateRequestMessage {

    // Instance variables

    private ORB orb = null;
    private ObjectKey objectKey = null;
    private TargetAddress target = null;

    // Constructors

    LocateRequestMessage_1_2(ORB orb) {
        this.orb = orb;
    }

    LocateRequestMessage_1_2(ORB orb, int _request_id, TargetAddress _target) {
        super(Message.GIOPBigMagic, GIOPVersion.V1_2, FLAG_NO_FRAG_BIG_ENDIAN,
            Message.GIOPLocateRequest, 0);
        this.orb = orb;
        request_id = _request_id;
        target = _target;
    }

    // Accessor methods (LocateRequestMessage interface)

    public int getRequestId() {
        return this.request_id;
    }

    public ObjectKey getObjectKey() {
        if (this.objectKey == null) {
            // this will raise a MARSHAL exception upon errors.
            this.objectKey = MessageBase.extractObjectKey(target, orb);
        }

        return this.objectKey;
    }

    // IO methods

    public void read(org.omg.CORBA.portable.InputStream istream) {
        super.read(istream);
        this.request_id = istream.read_ulong();
        this.target = TargetAddressHelper.read(istream);
        getObjectKey(); // this does AddressingDisposition check
    }

    public void write(org.omg.CORBA.portable.OutputStream ostream) {
        super.write(ostream);
        ostream.write_ulong (this.request_id);
        nullCheck(this.target);
        TargetAddressHelper.write(ostream, this.target);
    }

    public void callback(MessageHandler handler)
        throws java.io.IOException
    {
        handler.handleInput(this);
    }
} // class LocateRequestMessage_1_2

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