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Java example source code file (OAInvocationInfo.java)

This example Java source code file (OAInvocationInfo.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

cookieholder, corba, oainvocationinfo, objectadapter, objectcopierfactory, rmi, servantobject, string, tie

The OAInvocationInfo.java Java example source code

/*
 * Copyright (c) 1999, 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.spi.oa;

import javax.rmi.CORBA.Tie ;

import org.omg.CORBA.portable.ServantObject;

import org.omg.PortableServer.Servant;

import org.omg.PortableServer.ServantLocatorPackage.CookieHolder;

import com.sun.corba.se.spi.oa.ObjectAdapter ;
import com.sun.corba.se.spi.copyobject.ObjectCopierFactory ;

/** This class is a holder for the information required to implement POACurrent.
* It is also used for the ServantObject that is returned by _servant_preinvoke calls.
* This allows us to avoid allocating an extra object on each collocated invocation.
*/
public class OAInvocationInfo extends ServantObject {
    // This is the container object for the servant.
    // In the RMI-IIOP case, it is the RMI-IIOP Tie, and the servant is the
    // target of the Tie.
    // In all other cases, it is the same as the Servant.
    private java.lang.Object    servantContainer ;

    // These fields are to support standard OMG APIs.
    private ObjectAdapter       oa;
    private byte[]              oid;

    // These fields are to support the Object adapter implementation.
    private CookieHolder        cookieHolder;
    private String              operation;

    // This is the copier to be used by javax.rmi.CORBA.Util.copyObject(s)
    // For the current request.
    private ObjectCopierFactory factory ;

    public OAInvocationInfo(ObjectAdapter oa, byte[] id )
    {
        this.oa = oa;
        this.oid  = id;
    }

    // Copy constructor of sorts; used in local optimization path
    public OAInvocationInfo( OAInvocationInfo info, String operation )
    {
        this.servant            = info.servant ;
        this.servantContainer   = info.servantContainer ;
        this.cookieHolder       = info.cookieHolder ;
        this.oa                 = info.oa;
        this.oid                = info.oid;
        this.factory            = info.factory ;

        this.operation          = operation;
    }

    //getters
    public ObjectAdapter    oa()                    { return oa ; }
    public byte[]           id()                    { return oid ; }
    public Object           getServantContainer()   { return servantContainer ; }

    // Create CookieHolder on demand.  This is only called by a single
    // thread, so no synchronization is needed.
    public CookieHolder     getCookieHolder()
    {
        if (cookieHolder == null)
            cookieHolder = new CookieHolder() ;

        return cookieHolder;
    }

    public String           getOperation()      { return operation; }
    public ObjectCopierFactory  getCopierFactory()      { return factory; }

    //setters
    public void setOperation( String operation )    { this.operation = operation ; }
    public void setCopierFactory( ObjectCopierFactory factory )    { this.factory = factory ; }

    public void setServant(Object servant)
    {
        servantContainer = servant ;
        if (servant instanceof Tie)
            this.servant = ((Tie)servant).getTarget() ;
        else
            this.servant = servant;
    }
}

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