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jeremybenn |
/* ORB_1_4.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA.Poa;
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import gnu.CORBA.OrbFunctional;
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import gnu.CORBA.IOR;
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import gnu.CORBA.Connected_objects.cObject;
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import gnu.CORBA.DynAn.gnuDynAnyFactory;
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import gnu.CORBA.Interceptor.ClientRequestInterceptors;
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import gnu.CORBA.Interceptor.IORInterceptors;
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import gnu.CORBA.Interceptor.Registrator;
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import gnu.CORBA.Interceptor.ServerRequestInterceptors;
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import gnu.CORBA.Interceptor.gnuIcCurrent;
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import gnu.CORBA.Interceptor.gnuIorInfo;
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import org.omg.CORBA.Any;
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import org.omg.CORBA.BAD_OPERATION;
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import org.omg.CORBA.BAD_PARAM;
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import org.omg.CORBA.OBJECT_NOT_EXIST;
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import org.omg.CORBA.ORB;
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import org.omg.CORBA.Policy;
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import org.omg.CORBA.PolicyError;
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import org.omg.CORBA.portable.ObjectImpl;
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import org.omg.PortableInterceptor.PolicyFactory;
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import org.omg.PortableServer.Servant;
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import org.omg.PortableServer.POAManagerPackage.State;
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import org.omg.PortableServer.POAPackage.InvalidPolicy;
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import java.applet.Applet;
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import java.util.Properties;
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/**
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* The ORB, supporting POAs that are the feature of jdk 1.4.
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*
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* @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
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*/
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public class ORB_1_4
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extends OrbFunctional
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{
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/**
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* The root POA.
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*/
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public final gnuPOA rootPOA;
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/**
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* Maps the active threads to the invocation data ("POA Current's").
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*/
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public gnuPoaCurrent currents = new gnuPoaCurrent();
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/**
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* Maps the active threads to the interceptor data ("Interceptor Current's").
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*/
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public gnuIcCurrent ic_current = new gnuIcCurrent(this);
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/**
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* Creates dynamic anys.
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*/
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public gnuDynAnyFactory factory = new gnuDynAnyFactory(this);
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/**
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* Calls the parent constructor and additionally puts the "RootPOA",
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* "RootPOAManager", "POACurrent" and "DynAnyFactory" into initial references.
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*/
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public ORB_1_4()
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{
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super();
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try
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{
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rootPOA = new gnuPOA(null, "RootPOA", null, StandardPolicies.rootPoa(), this);
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}
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catch (InvalidPolicy ex)
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{
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// Invalid default policy set.
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InternalError ierr = new InternalError();
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ierr.initCause(ex);
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throw ierr;
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}
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initial_references.put("RootPOA", rootPOA);
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initial_references.put("RootPOAManager", rootPOA.the_POAManager());
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initial_references.put("POACurrent", currents);
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initial_references.put("DynAnyFactory", factory);
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initial_references.put("PICurrent", ic_current);
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}
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/**
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* If the super method detects that the object is not connected to this ORB,
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* try to find and activate the object.
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*/
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public String object_to_string(org.omg.CORBA.Object forObject)
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{
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try
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{
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return super.object_to_string(forObject);
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}
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catch (Exception ex)
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{
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try
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{
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AOM.Obj exists = rootPOA.findObject(forObject);
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if (exists == null)
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throw new OBJECT_NOT_EXIST(forObject == null ? "null"
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: forObject.toString());
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else if (exists.poa instanceof gnuPOA)
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((gnuPOA) exists.poa).connect_to_orb(exists.key, forObject);
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else
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exists.poa.create_reference_with_id(exists.key,
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((ObjectImpl) exists.object)._ids()[0]);
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}
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catch (Exception bex)
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{
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BAD_PARAM bad = new BAD_PARAM("Unable to activate " + forObject);
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bad.initCause(bex);
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throw bad;
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}
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return super.object_to_string(forObject);
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}
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}
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/**
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* Destroy all poas and then call the superclass method.
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*/
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public void destroy()
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{
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// This will propagate through the whole POA tree.
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rootPOA.destroy(true, false);
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super.destroy();
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}
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/**
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* Do interceptor registration.
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*
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* @param properties the properties, between those names the agreed prefix
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* "org.omg.PortableInterceptor.ORBInitializerClass." is searched.
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*
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* @param args the string array, passed to the ORB.init
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*/
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protected void registerInterceptors(Properties properties, String[] args)
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{
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Registrator registrator = new Registrator(this, properties, args);
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policyFactories = registrator.m_policyFactories;
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registrator.pre_init();
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initial_references.putAll(registrator.getRegisteredReferences());
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registrator.post_init();
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if (registrator.hasIorInterceptors())
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iIor = new IORInterceptors(registrator);
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if (registrator.hasServerRequestInterceptors())
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iServer = new ServerRequestInterceptors(registrator);
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if (registrator.hasClientRequestInterceptors())
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iClient = new ClientRequestInterceptors(registrator);
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policyFactories = registrator.m_policyFactories;
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}
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/**
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* Create IOR and allow registered interceptors to add additional components.
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*/
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protected IOR createIOR(cObject ref)
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throws BAD_OPERATION
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{
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IOR ior = super.createIOR(ref);
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if (iIor != null)
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{
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AOM.Obj obj = rootPOA.findIorKey(ior.key);
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gnuPOA poa;
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// Null means that the object was connected to the ORB directly.
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if (obj == null)
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poa = rootPOA;
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else
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poa = obj.poa;
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gnuIorInfo info = new gnuIorInfo(this, poa, ior);
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// This may modify the ior.
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iIor.establish_components(info);
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iIor.components_established(info);
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}
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return ior;
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}
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/**
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* Create policy using the previously registered factory.
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*/
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public Policy create_policy(int type, Any value)
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throws PolicyError
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{
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Integer policy = new Integer(type);
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PolicyFactory forge = (PolicyFactory) policyFactories.get(policy);
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if (forge == null)
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throw new PolicyError("No factory registered for policy " + type,
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(short) type);
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else
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return forge.create_policy(type, value);
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}
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/**
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* Set the parameters and then register interceptors.
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*/
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protected void set_parameters(Applet app, Properties props)
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{
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super.set_parameters(app, props);
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registerInterceptors(props, new String[0]);
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}
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/**
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* Set the parameters and then register interceptors.
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*/
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protected void set_parameters(String[] para, Properties props)
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{
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super.set_parameters(para, props);
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registerInterceptors(props, para);
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}
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/**
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* This method is called by RMI-IIOP {@link javax.rmi.Tie#orb(ORB)}, passing
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* <code>this</code> as parameter. The ORB will try to connect that tie as
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* one of its objects, if it is not already connected. If the wrapper is an
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* instance of Servant this method also activates the root poa (if not already
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* active).
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*/
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public void set_delegate(java.lang.Object wrapper)
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{
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if (wrapper instanceof org.omg.CORBA.Object)
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{
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org.omg.CORBA.Object object = (org.omg.CORBA.Object) wrapper;
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if (connected_objects.getKey(object) == null)
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connect(object);
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}
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else if (wrapper instanceof Servant)
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{
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Servant s = (Servant) wrapper;
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if (rootPOA.findServant(s) == null)
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try
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{
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rootPOA.servant_to_reference(s);
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if (rootPOA.the_POAManager().get_state().value() == State._HOLDING)
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rootPOA.the_POAManager().activate();
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}
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catch (Exception e)
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{
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BAD_OPERATION bad = new BAD_OPERATION("Unable to connect "
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+ wrapper + " to " + this);
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throw bad;
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}
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}
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}
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}
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