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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/filter/FilterMain.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/filter/FilterMain.java (file contents):
Revision 1.6 by tdb, Thu Nov 23 01:44:05 2000 UTC vs.
Revision 1.15 by ajm, Thu Nov 30 03:05:47 2000 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	+	package uk.ac.ukc.iscream.filter;
3
4		//---IMPORTS---
5	+	import uk.ac.ukc.iscream.util.*;
6		import uk.ac.ukc.iscream.core.*;
7		import uk.ac.ukc.iscream.filter.*;
6	–	import org.omg.CORBA.*;
7	–	import org.omg.CosNaming.*;
8	–	import org.omg.PortableServer.*;
8
9		/**
10		* A Filter Startup Class
#	Line 25 | Line 24 | class FilterMain {
24		//---STATIC METHODS---
25
26		public static void main(String[] args) {
27	+	// ***************************************
28	+	// VERY TEMPORARY - will find a better way
29		System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
30		System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
31	<
31	>	// ***************************************
32	>
33		// get our name from the command line
34		String ourName = "";
35		if (args.length == 1) {
#	Line 39 | Line 41 | class FilterMain {
41
42		// can't have a real toString() :)
43		String toString = "Filter{" + ourName + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
44	+
45	+	ReferenceManager refman = ReferenceManager.init(null, ourName);
46
47	<	try {
44	<	ORB orb = ORB.init(args, null);
47	>	refman.getLogger().write(toString, Logger.SYSINIT, "coming up");
48
49	<	// something to hold objects
50	<	org.omg.CORBA.Object objRef = null;
51	<
52	<	// get the Root POA
50	<	objRef = orb.resolve_initial_references("RootPOA");
51	<	POA poa = POAHelper.narrow(objRef);
52	<
53	<	// get a hook to the name service
54	<	objRef = orb.resolve_initial_references("NameService");
55	<	NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
56	<
57	<	// get a ref to the ConfigurationManager, Logger & the FilterManager
58	<
59	<	objRef = ncRef.resolve(ncRef.to_name("iscream.ConfigurationManager"));
60	<	ConfigurationManager configManager = ConfigurationManagerHelper.narrow(objRef);
61	<
62	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Logger"));
63	<	Logger logger = LoggerHelper.narrow(objRef);
64	<
65	<	logger.write(toString, Logger.SYSINIT, "coming up");
66	<
67	<
68	<	// **** THIS SECTION WILL NEED CHANGING TO GET RELEVANT CONFIG
69	<	// **** Please ignore this block of code, it's just "copy/paste" :)
70	<
71	<	// get the config
72	<	Configuration myConfig = configManager.getConfiguration(ourName);
73	<
74	<	// read some config here
75	<	int port = 0;
76	<	String parentFilterName = null;
77	<
78	<	// did we?
79	<	if (myConfig == null) {
80	<	System.out.println("Failed: is it there?, can you read it?");
81	<	System.exit(1);
82	<	} else {
83	<
84	<	// get the property
85	<	try {
86	<	//QUERY HERE.... ???
87	<	port = new Integer(myConfig.getProperty("Filter.listenPort")).intValue();
88	<	parentFilterName = myConfig.getProperty("Filter.parentFilter");
89	<	} catch (org.omg.CORBA.MARSHAL e) {
90	<	System.out.println("Caught org.omg.CORBA.MARSHAL, must be a null we got back");
91	<	//System.exit(1);
92	<	}
93	<	}
94	<
95	<	logger.write(toString, Logger.SYSINIT, "configured");
96	<
97	<	// **** END COMMENT
98	<
99	<	// **** INITIAL FILTER MANAGER COMMUNICATIONS HERE
100	<
101	<	// get a root (CHANGE to use FilterManager)
102	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Filter." + parentFilterName));
103	<	Filter parentFilter = FilterHelper.narrow(objRef);
49	>	// configuration variables we require
50	>	int UDPListenPort = 0;
51	>	int TCPListenPort = 0;
52	>	String parentFilterName = null;
53
54	<	// SETUP our Servant
55	<
56	<	// create the FilterServant
57	<	FilterServant filterServant = new FilterServant(logger, parentFilter, ourName, new Integer(port).toString() , new Integer(port).toString());
54	>	Configuration config = refman.getCM().getConfiguration(refman.getName());
55	>	if (config == null) {
56	>	throw new RuntimeException ("CRITICAL:Unable to obtain configuration" +
57	>	"         Advise you check the i-scream log for more information.");
58	>	} else {
59	>	try {
60	>	UDPListenPort = Integer.parseInt(config.getProperty("Filter.UDPListenPort"));
61	>	TCPListenPort = Integer.parseInt(config.getProperty("Filter.TCPListenPort"));
62	>	parentFilterName = config.getProperty("Filter.parentFilter");
63	>	} catch (org.omg.CORBA.MARSHAL e) {
64	>	refman.getLogger().write(toString, Logger.FATAL, "required config property not present");
65	>	throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" +
66	>	"         Advise you check the i-scream log for more information.");
67
68	<	// register ourselves
68	>	}
69	>	}
70	>	refman.getLogger().write(toString, Logger.SYSINIT, "configured");
71	>	// get parent
72	>	Filter parentFilter = FilterHelper.narrow(refman.getCORBARef("iscream.Filter." + parentFilterName));
73	>
74	>
75	>
76	>	// FilterServant start (for inbound child filter data)
77	>	refman.getLogger().write(toString, Logger.DEBUG, "starting Filter Child -> Parent link for upstream parent - " + parentFilterName);
78	>	FilterServant filterServant = new FilterServant(parentFilter, TCPListenPort, UDPListenPort);
79	>	refman.bindToOrb(filterServant, "iscream.Filter." + refman.getName());
80
81	<	// and advertise it to the naming context
82	<	objRef = poa.servant_to_reference(filterServant);
83	<	ncRef.bind(ncRef.to_name("iscream.Filter."+ourName), objRef);
81	>	// UDL Reader start (for inbound host data)
82	>	refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter UDP listener");
83	>	UDPReader udpReader = new UDPReader(UDPListenPort, parentFilter);
84	>	udpReader.start();
85
86	<	// **** END COMMENT
87	<
88	<	// END SETUP
89	<
90	<
91	<	/**************************************************************
92	<	Here would be an ideal place to start another thread to do
93	<	the listening part of the Filter. Ideally it should just be
94	<	created and then run(). It may be necessary to pass some of
95	<	the following parameters into the thread by the constructor.
96	<
127	<	Logger logger
128	<	- a reference to a Logger object
129	<	FilterManager filterManager
130	<	- a reference to the system filter manager
131	<	ConfigurationManager configManager
132	<	- a reference to the system configuration manager
133	<	Configuration myConfig
134	<	- a reference to the configuration object for this
135	<	filter instance
136	<	String ourName
137	<	- our "identifier" name
138	<
139	<	**************************************************************/
140	<
141	<	logger.write(toString, Logger.SYSINIT, "starting Filter UDP listener");
142	<	UDPReader udpReader = new UDPReader(port, parentFilter, logger);
143	<	udpReader.start();
144	<	logger.write(toString, Logger.SYSINIT, "Filter UDP listener started");
145	<
146	<	// TEST
147	<	parentFilter.receiveXML("<?xml version=\"1.0\" encoding=\"ISO8859-1\"?><packet><test>This is just a debugging test, we ("+ourName+") are live on port: "+port+"</test></packet>");
148	<
149	<	// start the POA off
150	<	poa.the_POAManager().activate();
151	<
152	<	logger.write(toString, Logger.SYSINIT, "started");
153	<
154	<	// now we are running, we just need to serve
155	<	// so we ask the orb to block for us until it has finished
156	<	orb.run();
157	<
158	<	} catch (Exception e) {
159	<	System.err.println("FILTER ERROR: " + e);
160	<	e.printStackTrace(System.out);
161	<	}
86	>	// TCP Reader start (for heartbeats)
87	>	refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter TCP listener");
88	>	TCPReader tcpReader = new TCPReader(TCPListenPort, parentFilter);
89	>	tcpReader.start();
90	>
91	>	// start the POA off
92	>	// now we are running, we just need to serve
93	>	// so we ask the orb to block for us until it has finished
94	>	refman.activatePOA();
95	>	refman.getLogger().write(toString, Logger.SYSINIT, "started");
96	>	refman.getORB().run();
97		}
98
99		/**
#	Line 168 | Line 103 | class FilterMain {
103		* properly.
104		*/
105		public static void usage() {
106	<	System.out.println("USAGE: java Filter <name>");
106	>	System.out.println("USAGE: java FilterMain <name>");
107		System.out.println("WHERE <name>:");
108		System.out.println("      The unique identifier for the Filter in the system.");
109		System.exit(1);

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