Java example source code file (RequestMessage_1_0.java)

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Java - Java tags/keywords

corba, objectkey, principal, requestmessage_1_0, servicecontexts, string

The RequestMessage_1_0.java Java example source code

/*
 * 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.impl.protocol.giopmsgheaders;

import org.omg.CORBA.Principal;
import com.sun.corba.se.spi.servicecontext.ServiceContexts;
import com.sun.corba.se.spi.ior.iiop.GIOPVersion;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.ior.ObjectKey;

/**
 * This implements the GIOP 1.0 Request header.
 *
 * @author Ram Jeyaraman 05/14/2000
 */

public final class RequestMessage_1_0 extends Message_1_0
        implements RequestMessage {

    // Instance variables

    private ORB orb = null;
    private ServiceContexts service_contexts = null;
    private int request_id = (int) 0;
    private boolean response_expected = false;
    private byte[] object_key = null;
    private String operation = null;
    private Principal requesting_principal = null;
    private ObjectKey objectKey = null;

    // Constructor

    RequestMessage_1_0(ORB orb) {
        this.orb = orb;
    }

    RequestMessage_1_0(ORB orb, ServiceContexts _service_contexts,
            int _request_id, boolean _response_expected, byte[] _object_key,
            String _operation, Principal _requesting_principal) {
        super(Message.GIOPBigMagic, false, Message.GIOPRequest, 0);
        this.orb = orb;
        service_contexts = _service_contexts;
        request_id = _request_id;
        response_expected = _response_expected;
        object_key = _object_key;
        operation = _operation;
        requesting_principal = _requesting_principal;
    }

    // Accessor methods (RequestMessage interface)

    public ServiceContexts getServiceContexts() {
        return this.service_contexts;
    }

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

    public boolean isResponseExpected() {
        return this.response_expected;
    }

    public byte[] getReserved() {
        // REVISIT Should we throw an exception or return null ?
        return null;
    }

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

        return this.objectKey;
    }

    public String getOperation() {
        return this.operation;
    }

    public Principal getPrincipal() {
        return this.requesting_principal;
    }


    // Mutators

    public void setThreadPoolToUse(int poolToUse) {
        // No-op, must be GIOP Version 1.1 or greater
        // to support this SUN PROPRIETARY EXTENSION.
    }


    // IO methods

    public void read(org.omg.CORBA.portable.InputStream istream) {
        super.read(istream);
        this.service_contexts
            = new ServiceContexts((org.omg.CORBA_2_3.portable.InputStream) istream);
        this.request_id = istream.read_ulong();
        this.response_expected = istream.read_boolean();
        int _len0 = istream.read_long();
        this.object_key = new byte[_len0];
        istream.read_octet_array(this.object_key, 0, _len0);
        this.operation = istream.read_string();
        this.requesting_principal = istream.read_Principal();
    }

    public void write(org.omg.CORBA.portable.OutputStream ostream) {
        super.write(ostream);
        if (this.service_contexts != null) {
                service_contexts.write(
                (org.omg.CORBA_2_3.portable.OutputStream) ostream,
                GIOPVersion.V1_0);
            } else {
                ServiceContexts.writeNullServiceContext(
                (org.omg.CORBA_2_3.portable.OutputStream) ostream);
        }
        ostream.write_ulong(this.request_id);
        ostream.write_boolean(this.response_expected);
        nullCheck(this.object_key);
        ostream.write_long(this.object_key.length);
        ostream.write_octet_array(this.object_key, 0, this.object_key.length);
        ostream.write_string(this.operation);
        if (this.requesting_principal != null) {
            ostream.write_Principal(this.requesting_principal);
        } else {
            ostream.write_long(0);
        }
    }

    public void callback(MessageHandler handler)
        throws java.io.IOException
    {
        handler.handleInput(this);
    }
} // class RequestMessage_1_0