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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.filter; |
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|
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.refman.*; |
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import uk.ac.ukc.iscream.core.*; |
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import uk.ac.ukc.iscream.filter.*; |
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import org.omg.CORBA.*; |
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import org.omg.CosNaming.*; |
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import org.omg.PortableServer.*; |
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|
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/** |
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* A Filter Startup Class |
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* |
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* @author $Author: ajm4 $ |
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* @version $Id: FilterMain.java,v 1.12 2000/11/29 21:27:39 ajm4 Exp $ |
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*/ |
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class FilterMain { |
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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: 1.12 $"; |
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|
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//---STATIC METHODS--- |
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|
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public static void main(String[] args) { |
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// *************************************** |
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// VERY TEMPORARY - will find a better way |
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System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB"); |
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System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton"); |
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// *************************************** |
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|
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// get our name from the command line |
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String ourName = ""; |
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if (args.length == 1) { |
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ourName = args[0]; |
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} |
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else { |
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usage(); |
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} |
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|
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// can't have a real toString() :) |
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String toString = "Filter{" + ourName + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")"; |
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|
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ReferenceManager refman = ReferenceManager.init(null, ourName); |
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|
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refman.getLogger().write(toString, Logger.SYSINIT, "coming up"); |
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|
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// configuration variables we require |
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int UDPListenPort = 0; |
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int TCPListenPort = 0; |
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String parentFilterName = null; |
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|
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Configuration config = refman.getCM().getConfiguration(refman.getName()); |
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if (config == null) { |
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throw new RuntimeException ("CRITICAL:Unable to obtain configuration" + |
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" Advise you check the i-scream log for more information."); |
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} else { |
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try { |
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UDPListenPort = Integer.parseInt(config.getProperty("Filter.UDPListenPort")); |
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TCPListenPort = Integer.parseInt(config.getProperty("Filter.TCPListenPort")); |
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parentFilterName = config.getProperty("Filter.parentFilter"); |
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} catch (org.omg.CORBA.MARSHAL e) { |
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refman.getLogger().write(toString, Logger.FATAL, "required config property not present"); |
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throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" + |
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" Advise you check the i-scream log for more information."); |
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|
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} |
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} |
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refman.getLogger().write(toString, Logger.SYSINIT, "configured"); |
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// get parent |
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Filter parentFilter = FilterHelper.narrow(refman.getCORBARef("iscream.Filter." + parentFilterName)); |
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|
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|
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|
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// FilterServant start (for inbound child filter data) |
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refman.getLogger().write(toString, Logger.DEBUG, "starting Filter Child -> Parent link for upstream parent - " + parentFilterName); |
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FilterServant filterServant = new FilterServant(parentFilter, TCPListenPort, UDPListenPort); |
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refman.bindToOrb(filterServant, "iscream.Filter." + refman.getName()); |
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|
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// UDL Reader start (for inbound host data) |
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refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter UDP listener"); |
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UDPReader udpReader = new UDPReader(UDPListenPort, parentFilter); |
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udpReader.start(); |
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|
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// TCP Reader start (for heartbeats) |
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refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter TCP listener"); |
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TCPReader tcpReader = new TCPReader(TCPListenPort, parentFilter); |
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tcpReader.start(); |
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|
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// start the POA off |
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// now we are running, we just need to serve |
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// so we ask the orb to block for us until it has finished |
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refman.activatePOA(); |
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refman.getLogger().write(toString, Logger.SYSINIT, "started"); |
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refman.getORB().run(); |
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} |
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|
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/** |
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* A simple method to print the usage of this class. |
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* It never returns, but instead exits to the system |
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* with a value 1, to indicate the system did not start |
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* properly. |
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*/ |
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public static void usage() { |
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System.out.println("USAGE: java FilterMain <name>"); |
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System.out.println("WHERE <name>:"); |
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System.out.println(" The unique identifier for the Filter in the system."); |
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System.exit(1); |
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} |
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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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//---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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//---STATIC ATTRIBUTES--- |
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|
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} |
