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tdb |
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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.clientinterface; |
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.core.*; |
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import uk.ac.ukc.iscream.util.*; |
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import uk.ac.ukc.iscream.componentmanager.*; |
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import uk.ac.ukc.iscream.client.*; |
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/** |
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* This class, a servant, listens for incoming connections from CORBA based |
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* clients. Once it receives a connection it creates and assigns a CorbaHandler |
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* object to it. The CorbaHandler will then handle all requests on behalf of the |
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* client, and will send the client data. |
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* |
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tdb |
1.2 |
* @author $Author: tdb1 $ |
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* @version $Id: CorbaClientListenerServant.java,v 1.1 2001/02/03 00:42:54 tdb1 Exp $ |
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tdb |
1.1 |
*/ |
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class CorbaClientListenerServant extends CorbaClientListenerPOA { |
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//---FINAL ATTRIBUTES--- |
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.1 $"; |
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//---STATIC METHODS--- |
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//---CONSTRUCTORS--- |
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/** |
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* Creates a new CorbaClientListenerServant. |
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* |
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* @param packetSorter a reference to the PacketSorter object being used |
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*/ |
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public CorbaClientListenerServant(PacketSorter packetSorter) { |
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_packetSorter = packetSorter; |
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_logger.write(toString(), Logger.SYSINIT, "created"); |
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} |
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//---PUBLIC METHODS--- |
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/** |
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* Allows a CORBA client to connect to the server. |
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* |
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* @param name the name of the connecting client. |
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* @param client a reference to the "servant" part of the connecting client. |
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* @return a CorbaHandler reference. |
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*/ |
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public CorbaHandler connect(String name, Client client) { |
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CorbaHandlerServant chServant = new CorbaHandlerServant(_packetSorter, name, client); |
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CorbaHandlerPOATie chPOATie = new CorbaHandlerPOATie(chServant); |
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org.omg.CORBA.Object objRef; |
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try { |
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objRef = _refman.getRootPOA().servant_to_reference(chPOATie); |
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} catch (Exception e) { |
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objRef = null; |
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_logger.write(toString(), Logger.ERROR, "Error creating CorbaHandler: "+e); |
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} |
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CorbaHandler corbaHandler = CorbaHandlerHelper.narrow(objRef); |
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tdb |
1.2 |
corbaHandler.start(); |
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tdb |
1.1 |
return corbaHandler; |
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} |
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.ac.ukc.iscream.util.NameFormat class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return FormatName.getName( |
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_name, |
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getClass().getName(), |
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REVISION); |
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} |
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//---PRIVATE METHODS--- |
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//---ACCESSOR/MUTATOR METHODS--- |
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//---ATTRIBUTES--- |
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/** |
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* This is the friendly identifier of the |
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* component this class is running in. |
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* eg, a Filter may be called "filter1", |
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* If this class does not have an owning |
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* component, a name from the configuration |
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* can be placed here. This name could also |
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* be changed to null for utility classes. |
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*/ |
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private String _name = ClientInterfaceMain.NAME; |
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/** |
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* This holds a reference to the |
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* system logger that is being used. |
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*/ |
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private Logger _logger = ReferenceManager.getInstance().getLogger(); |
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/** |
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* A reference to the reference manager in use |
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*/ |
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private ReferenceManager _refman = ReferenceManager.getInstance(); |
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/** |
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* A reference to the PacketSorter. |
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*/ |
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private PacketSorter _packetSorter; |
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//---STATIC ATTRIBUTES--- |
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} |
