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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.client; |
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|
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.clientinterface.*; |
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import uk.ac.ukc.iscream.componentmanager.*; |
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import uk.ac.ukc.iscream.core.*; |
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import uk.ac.ukc.iscream.util.*; |
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|
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/** |
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* A startup component for the Local Clients. |
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* |
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* @author $Author: tdb1 $ |
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* @version $Id: ClientMain.java,v 1.7 2001/02/27 01:01:33 tdb1 Exp $ |
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*/ |
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public class ClientMain implements Component { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public static final String REVISION = "$Revision: 1.7 $"; |
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|
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/** |
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* The friendly name for this component, used by |
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* all related classes. |
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*/ |
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public static final String NAME = "LocalClient"; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* This starts the Local Client component |
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*/ |
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public void start() throws ComponentStartException { |
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// get references to key objects |
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_refman = ReferenceManager.getInstance(); |
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_logger = ReferenceManager.getInstance().getLogger(); |
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|
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_logger.write(toString(), Logger.SYSINIT, "coming up"); |
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|
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// configuration variables we require |
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int queueMonitorInterval = 0; |
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|
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Configuration config = _refman.getCM().getConfiguration("LocalClient"); |
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if (config == null) { |
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throw new ComponentStartException("Unable to obtain configuration for component"); |
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} |
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else { |
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try { |
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// get the configuration properties we need |
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queueMonitorInterval = Integer.parseInt(config.getProperty("Queue.MonitorInterval")); |
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} catch (org.omg.CORBA.MARSHAL e) { |
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throw new ComponentStartException("Unable to obtain requried configuration property for component"); |
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} |
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} |
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|
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_logger.write(toString(), Logger.SYSINIT, "configured"); |
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|
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// setup a Queue for the servant -> monitor manager |
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Queue queue = new Queue(); |
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// startup a monitor on this queue |
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String queueName = NAME + " ServantToMonMan"; |
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queue.startMonitor(queueMonitorInterval*1000, queueName); |
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|
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// setup the servant and connect |
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_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting"); |
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try { |
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ClientServant ref = new ClientServant(queue); |
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org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref); |
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Client client = ClientHelper.narrow(objRef); |
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|
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// this name maybe shouldn't be static |
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objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener"); |
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CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef); |
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|
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_logger.write(toString(), Logger.SYSINIT, "connecting"); |
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CorbaControlHandler handler = listener.connect(client, NAME); |
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handler.startData(); |
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} |
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catch(Exception e) { |
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// not sure what to do here |
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// so we just log the error |
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_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage()); |
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} |
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|
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// setup the MonitorManager |
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MonitorManager monMan = new MonitorManager(queue); |
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|
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_logger.write(toString(), Logger.SYSINIT, "started"); |
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|
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} |
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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.FormatName 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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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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//---ATTRIBUTES--- |
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|
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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; |
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|
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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; |
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|
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//---STATIC ATTRIBUTES--- |
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|
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} |
