1 /*
   2  * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package com.sun.corba.se.spi.oa;
  26 
  27 import javax.rmi.CORBA.Tie ;
  28 
  29 import org.omg.CORBA.portable.ServantObject;
  30 
  31 import org.omg.PortableServer.Servant;
  32 
  33 import org.omg.PortableServer.ServantLocatorPackage.CookieHolder;
  34 
  35 import com.sun.corba.se.spi.oa.ObjectAdapter ;
  36 import com.sun.corba.se.spi.copyobject.ObjectCopierFactory ;
  37 
  38 /** This class is a holder for the information required to implement POACurrent.
  39 * It is also used for the ServantObject that is returned by _servant_preinvoke calls.
  40 * This allows us to avoid allocating an extra object on each collocated invocation.
  41 */
  42 public class OAInvocationInfo extends ServantObject {
  43     // This is the container object for the servant.
  44     // In the RMI-IIOP case, it is the RMI-IIOP Tie, and the servant is the
  45     // target of the Tie.
  46     // In all other cases, it is the same as the Servant.
  47     private java.lang.Object    servantContainer ;
  48 
  49     // These fields are to support standard OMG APIs.
  50     private ObjectAdapter       oa;
  51     private byte[]              oid;
  52 
  53     // These fields are to support the Object adapter implementation.
  54     private CookieHolder        cookieHolder;
  55     private String              operation;
  56 
  57     // This is the copier to be used by javax.rmi.CORBA.Util.copyObject(s)
  58     // For the current request.
  59     private ObjectCopierFactory factory ;
  60 
  61     public OAInvocationInfo(ObjectAdapter oa, byte[] id )
  62     {
  63         this.oa = oa;
  64         this.oid  = id;
  65     }
  66 
  67     // Copy constructor of sorts; used in local optimization path
  68     public OAInvocationInfo( OAInvocationInfo info, String operation )
  69     {
  70         this.servant            = info.servant ;
  71         this.servantContainer   = info.servantContainer ;
  72         this.cookieHolder       = info.cookieHolder ;
  73         this.oa                 = info.oa;
  74         this.oid                = info.oid;
  75         this.factory            = info.factory ;
  76 
  77         this.operation          = operation;
  78     }
  79 
  80     //getters
  81     public ObjectAdapter    oa()                    { return oa ; }
  82     public byte[]           id()                    { return oid ; }
  83     public Object           getServantContainer()   { return servantContainer ; }
  84 
  85     // Create CookieHolder on demand.  This is only called by a single
  86     // thread, so no synchronization is needed.
  87     public CookieHolder     getCookieHolder()
  88     {
  89         if (cookieHolder == null)
  90             cookieHolder = new CookieHolder() ;
  91 
  92         return cookieHolder;
  93     }
  94 
  95     public String           getOperation()      { return operation; }
  96     public ObjectCopierFactory  getCopierFactory()      { return factory; }
  97 
  98     //setters
  99     public void setOperation( String operation )    { this.operation = operation ; }
 100     public void setCopierFactory( ObjectCopierFactory factory )    { this.factory = factory ; }
 101 
 102     public void setServant(Object servant)
 103     {
 104         servantContainer = servant ;
 105         if (servant instanceof Tie)
 106             this.servant = ((Tie)servant).getTarget() ;
 107         else
 108             this.servant = servant;
 109     }
 110 }