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package com.sun.corba.se.impl.naming.cosnaming;
// Get CORBA type
import org.omg.CORBA.INITIALIZE;
import org.omg.CORBA.ORB;
import org.omg.CORBA.CompletionStatus;
import org.omg.CORBA.Policy;
import org.omg.CORBA.INTERNAL;
import org.omg.PortableServer.POA;
import org.omg.PortableServer.LifespanPolicyValue;
import org.omg.PortableServer.RequestProcessingPolicyValue;
import org.omg.PortableServer.IdAssignmentPolicyValue;
import org.omg.PortableServer.ServantRetentionPolicyValue;
// Get org.omg.CosNaming types
import org.omg.CosNaming.NamingContext;
// Import transient naming context
import com.sun.corba.se.impl.naming.cosnaming.TransientNamingContext;
import com.sun.corba.se.impl.orbutil.ORBConstants;
import com.sun.corba.se.spi.logging.CORBALogDomains;
import com.sun.corba.se.impl.logging.NamingSystemException;
/**
* Class TransientNameService implements a transient name service
* using TransientNamingContexts and TransientBindingIterators, which
* implement the org.omg.CosNaming::NamingContext and org.omg.CosNaming::BindingIterator
* interfaces specfied by the OMG Common Object Services Specification.
* <p>
* The TransientNameService creates the initial NamingContext object.
* @see NamingContextImpl
* @see BindingIteratorImpl
* @see TransientNamingContext
* @see TransientBindingIterator
*/
public class TransientNameService
{
/**
* Constructs a new TransientNameService, and creates an initial
* NamingContext, whose object
* reference can be obtained by the initialNamingContext method.
* @param orb The ORB object
* @exception org.omg.CORBA.INITIALIZE Thrown if
* the TransientNameService cannot initialize.
*/
public TransientNameService(com.sun.corba.se.spi.orb.ORB orb )
throws org.omg.CORBA.INITIALIZE
{
// Default constructor uses "NameService" as the key for the Root Naming
// Context. If default constructor is used then INS's object key for
// Transient Name Service is "NameService"
initialize( orb, "NameService" );
}
/**
* Constructs a new TransientNameService, and creates an initial
* NamingContext, whose object
* reference can be obtained by the initialNamingContext method.
* @param orb The ORB object
* @param nameserviceName Stringified key used for INS Service registry
* @exception org.omg.CORBA.INITIALIZE Thrown if
* the TransientNameService cannot initialize.
*/
public TransientNameService(com.sun.corba.se.spi.orb.ORB orb,
String serviceName ) throws org.omg.CORBA.INITIALIZE
{
// This constructor gives the flexibility of providing the Object Key
// for the Root Naming Context that is registered with INS.
initialize( orb, serviceName );
}
/**
* This method initializes Transient Name Service by associating Root
* context with POA and registering the root context with INS Object Keymap.
*/
private void initialize( com.sun.corba.se.spi.orb.ORB orb,
String nameServiceName )
throws org.omg.CORBA.INITIALIZE
{
NamingSystemException wrapper = NamingSystemException.get( orb,
CORBALogDomains.NAMING ) ;
try {
POA rootPOA = (POA) orb.resolve_initial_references(
ORBConstants.ROOT_POA_NAME );
rootPOA.the_POAManager().activate();
int i = 0;
Policy[] poaPolicy = new Policy[3];
poaPolicy[i++] = rootPOA.create_lifespan_policy(
LifespanPolicyValue.TRANSIENT);
poaPolicy[i++] = rootPOA.create_id_assignment_policy(
IdAssignmentPolicyValue.SYSTEM_ID);
poaPolicy[i++] = rootPOA.create_servant_retention_policy(
ServantRetentionPolicyValue.RETAIN);
POA nsPOA = rootPOA.create_POA( "TNameService", null, poaPolicy );
nsPOA.the_POAManager().activate();
// Create an initial context
TransientNamingContext initialContext =
new TransientNamingContext(orb, null, nsPOA);
byte[] rootContextId = nsPOA.activate_object( initialContext );
initialContext.localRoot =
nsPOA.id_to_reference( rootContextId );
theInitialNamingContext = initialContext.localRoot;
orb.register_initial_reference( nameServiceName,
theInitialNamingContext );
} catch (org.omg.CORBA.SystemException e) {
throw wrapper.transNsCannotCreateInitialNcSys( e ) ;
} catch (Exception e) {
throw wrapper.transNsCannotCreateInitialNc( e ) ;
}
}
/**
* Return the initial NamingContext.
* @return the object reference for the initial NamingContext.
*/
public org.omg.CORBA.Object initialNamingContext()
{
return theInitialNamingContext;
}
// The initial naming context for this name service
private org.omg.CORBA.Object theInitialNamingContext;
}