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//---PACKAGE DECLARATION--- |
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package uk.org.iscream.client; |
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|
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//---IMPORTS--- |
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import uk.org.iscream.clientinterface.*; |
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import uk.org.iscream.componentmanager.*; |
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import uk.org.iscream.core.*; |
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import uk.org.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 1.15 2001/03/14 23:25:29 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: 1.15 $"; |
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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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_logger = _refman.getLogger(); |
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|
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_logger.write(toString(), Logger.SYSINIT, "coming up"); |
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|
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// setup the queues, this must be done before both managers are setup |
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// setup a Queue for the servant -> monitor manager |
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_monitorQueue = new Queue(); |
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// setup a Queue for the monitors -> alert manager |
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_alerterQueue = new Queue(); |
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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(_monitorQueue); |
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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 = MonitorManager.getInstance(); |
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monMan.start(); |
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|
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// setup the AlerterManager |
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AlerterManager alertMan = AlerterManager.getInstance(); |
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alertMan.start(); |
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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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* Does a dependency check. Used mainly at startup to |
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* see if the required dependencies (components) are up |
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* and running. |
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* |
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* @return a boolean value, true if the depdencies are satisfied |
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*/ |
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public boolean depCheck() { |
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try { |
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org.omg.CORBA.Object obj; |
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// first check the ConfigurationManager is alive |
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obj = _refman.getCORBARef("iscream.ConfigurationManager"); |
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// then get some info on the CLI |
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ConfigurationProxy cp = ConfigurationProxy.getInstance(); |
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String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName"); |
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// finally check the CLI is alive |
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obj = _refman.getCORBARef("iscream.ClientInterface." + cli); |
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} catch(ComponentCORBAException e) { |
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System.err.println(toString() + ": Dependency Failure: "+e); |
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return false; |
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} catch(PropertyNotFoundException e) { |
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System.err.println(toString() + ": Unable to obtain configuration: "+e); |
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return false; |
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} |
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// dependency check suceeded |
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return true; |
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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.org.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 = ReferenceManager.getInstance(); |
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|
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//---STATIC ATTRIBUTES--- |
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|
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/** |
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* A queue for the alerter manager |
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*/ |
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public static Queue _alerterQueue; |
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|
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/** |
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* A queue for the monitor manager |
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*/ |
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public static Queue _monitorQueue; |
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|
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} |
