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//---IMPORTS--- |
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import uk.ac.ukc.iscream.util.*; |
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import uk.ac.ukc.iscream.core.*; |
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import uk.ac.ukc.iscream.componentmanager.*; |
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/** |
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* The FilterManager handles initialisation |
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* @author $Author$ |
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* @version $Id$ |
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*/ |
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public class FilterManager implements uk.ac.ukc.iscream.util.Component { |
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public class FilterManager implements Component { |
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//---FINAL ATTRIBUTES--- |
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public static final String REVISION = "$Revision$"; |
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/** |
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* The friendly name for the FilterManager, used by |
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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 = "FilterManager"; |
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* This method starts the FilterManager |
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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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_logger.write(toString(), Logger.SYSINIT, "coming up"); |
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// configuration variable we require |
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int listenPort = 0; |
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Configuration config = _refman.getCM().getConfiguration("FilterManager"); |
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if (config == null) { |
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System.err.println("CRITICAL:Unable to obtain configuration" + |
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"\n Advise you check the i-scream log for more information."); |
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_logger.write(toString(), Logger.FATAL, "ERROR - unable to obtain configuration"); |
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System.exit(1); |
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} else { |
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try { |
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listenPort = Integer.parseInt(config.getProperty("FilterManager.listenPort")); |
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} catch (org.omg.CORBA.MARSHAL e) { |
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System.err.println ("CRITICAL:Unable to obtain required configuration property" + |
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"\n Advise you check the i-scream log for more information."); |
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_logger.write(toString(), Logger.FATAL, "ERROR - required configuration property not present"); |
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System.exit(1); |
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} |
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} |
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_logger.write(toString(), Logger.SYSMSG, "configured"); |
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HostListener hostListener = new HostListener(listenPort); |
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// startup a thread to listen for hosts |
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HostListener hostListener = new HostListener(); |
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hostListener.start(); |
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_logger.write(toString(), Logger.SYSINIT, "started"); |
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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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// no real dependencies |
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// although it will require Filter's, but these cannot |
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// be predicted at this stage |
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return true; |
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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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public String toString() { |
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return FormatName.getName( |
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_name, |
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this.getClass().getName(), |
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getClass().getName(), |
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REVISION); |
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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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private Logger _logger; |
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/** |
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* A reference to the reference manager in use |
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*/ |
