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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 1.4 by pjm2, Wed Nov 22 08:47:36 2000 UTC vs.
Revision 1.13 by ajm, Thu Nov 30 02:18:51 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.refman.*;
6		import uk.ac.ukc.iscream.core.*;
7		import uk.ac.ukc.iscream.filter.*;
8		import org.omg.CORBA.*;
#	Line 25 | Line 27 | class FilterMain {
27		//---STATIC METHODS---
28
29		public static void main(String[] args) {
30	+	// ***************************************
31	+	// VERY TEMPORARY - will find a better way
32		System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
33		System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
34	<
34	>	// ***************************************
35	>
36		// get our name from the command line
37		String ourName = "";
38		if (args.length == 1) {
#	Line 39 | Line 44 | class FilterMain {
44
45		// can't have a real toString() :)
46		String toString = "Filter{" + ourName + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
47	+
48	+	ReferenceManager refman = ReferenceManager.init(null, ourName);
49
50	<	try {
44	<	ORB orb = ORB.init(args, null);
50	>	refman.getLogger().write(toString, Logger.SYSINIT, "coming up");
51
52	<	// something to hold objects
53	<	org.omg.CORBA.Object objRef = null;
54	<
55	<	// get the Root POA
56	<	objRef = orb.resolve_initial_references("RootPOA");
57	<	POA poa = POAHelper.narrow(objRef);
58	<
59	<	// get a hook to the name service
60	<	objRef = orb.resolve_initial_references("NameService");
61	<	NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
62	<
63	<	// get a ref to the ConfigurationManager, Logger & the FilterManager
64	<
65	<	objRef = ncRef.resolve(ncRef.to_name("iscream.ConfigurationManager"));
66	<	ConfigurationManager configManager = ConfigurationManagerHelper.narrow(objRef);
67	<
68	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Logger"));
69	<	Logger logger = LoggerHelper.narrow(objRef);
70	<
65	<	//objRef = ncRef.resolve(ncRef.to_name("iscream.FilterManager"));
66	<	//FilterManager filterManager = FilterManagerHelper.narrow(objRef);
67	<
68	<	logger.write(toString, Logger.SYSINIT, "coming up");
69	<
70	<
71	<	// **** THIS SECTION WILL NEED CHANGING TO GET RELEVANT CONFIG
72	<	// **** Please ignore this block of code, it's just "copy/paste" :)
73	<
74	<	// get the config
75	<	Configuration myConfig = configManager.getConfiguration(ourName);
76	<
77	<	// read some config here
78	<	int port = 0;
79	<
80	<	// did we?
81	<	if (myConfig == null) {
82	<	System.out.println("Failed: is it there?, can you read it?");
83	<	System.exit(1);
84	<	} else {
85	<
86	<	// get the property
87	<	try {
88	<	//QUERY HERE.... ???
89	<	port = new Integer(myConfig.getProperty("Filter.listenPort")).intValue();
90	<	} catch (org.omg.CORBA.MARSHAL e) {
91	<	System.out.println("Caught org.omg.CORBA.MARSHAL, must be a null we got back");
92	<	//System.exit(1);
93	<	}
52	>	// configuration variables we require
53	>	int UDPListenPort = 0;
54	>	int TCPListenPort = 0;
55	>	String parentFilterName = null;
56	>
57	>	Configuration config = refman.getCM().getConfiguration(refman.getName());
58	>	if (config == null) {
59	>	throw new RuntimeException ("CRITICAL:Unable to obtain configuration" +
60	>	"         Advise you check the i-scream log for more information.");
61	>	} else {
62	>	try {
63	>	UDPListenPort = Integer.parseInt(config.getProperty("Filter.UDPListenPort"));
64	>	TCPListenPort = Integer.parseInt(config.getProperty("Filter.TCPListenPort"));
65	>	parentFilterName = config.getProperty("Filter.parentFilter");
66	>	} catch (org.omg.CORBA.MARSHAL e) {
67	>	refman.getLogger().write(toString, Logger.FATAL, "required config property not present");
68	>	throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" +
69	>	"         Advise you check the i-scream log for more information.");
70	>
71		}
95	–
96	–	logger.write(toString, Logger.SYSINIT, "configured");
97	–
98	–	// **** END COMMENT
99	–
100	–	// SETUP our Servant
101	–
102	–	// create the FilterServant
103	–	FilterServant filterServant = new FilterServant(logger, ourName);
104	–
105	–	// and advertise it to the naming context
106	–	objRef = poa.servant_to_reference(filterServant);
107	–	ncRef.bind(ncRef.to_name("iscream.Filter."+ourName), objRef);
108	–
109	–	// END SETUP
110	–
111	–	/**************************************************************
112	–	Here would be an ideal place to start another thread to do
113	–	the listening part of the Filter. Ideally it should just be
114	–	created and then run(). It may be necessary to pass some of
115	–	the following parameters into the thread by the constructor.
116	–
117	–	Logger logger
118	–	- a reference to a Logger object
119	–	FilterManager filterManager
120	–	- a reference to the system filter manager
121	–	ConfigurationManager configManager
122	–	- a reference to the system configuration manager
123	–	Configuration myConfig
124	–	- a reference to the configuration object for this
125	–	filter instance
126	–	String ourName
127	–	- our "identifier" name
128	–
129	–	**************************************************************/
130	–
131	–	logger.write(toString, Logger.SYSINIT, "starting Filter UDP listener");
132	–	UDPReader udpReader = new UDPReader(port, logger);
133	–	udpReader.start();
134	–	logger.write(toString, Logger.SYSINIT, "Filter UDP listener started");
135	–
136	–	// **** INITIAL FILTER MANAGER COMMUNICATIONS HERE
137	–
138	–	// get a root (CHANGE to use FilterManager)
139	–	objRef = ncRef.resolve(ncRef.to_name("iscream.Filter.root1"));
140	–	Filter root = FilterHelper.narrow(objRef);
141	–
142	–	// register ourselves
143	–
144	–	// **** END COMMENT
145	–
146	–	// TEST
147	–	root.receiveXML("This is just a debugging test, we ("+ourName+") are live on port: "+port);
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);
72		}
73	+	refman.getLogger().write(toString, Logger.SYSINIT, "configured");
74	+	// get parent
75	+	Filter parentFilter = FilterHelper.narrow(refman.getCORBARef("iscream.Filter." + parentFilterName));
76	+
77	+
78	+
79	+	// FilterServant start (for inbound child filter data)
80	+	refman.getLogger().write(toString, Logger.DEBUG, "starting Filter Child -> Parent link for upstream parent - " + parentFilterName);
81	+	FilterServant filterServant = new FilterServant(parentFilter, TCPListenPort, UDPListenPort);
82	+	refman.bindToOrb(filterServant, "iscream.Filter." + refman.getName());
83	+
84	+	// UDL Reader start (for inbound host data)
85	+	refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter UDP listener");
86	+	UDPReader udpReader = new UDPReader(UDPListenPort, parentFilter);
87	+	udpReader.start();
88	+
89	+	// TCP Reader start (for heartbeats)
90	+	refman.getLogger().write(toString, Logger.SYSINIT, "starting Filter TCP listener");
91	+	TCPReader tcpReader = new TCPReader(TCPListenPort, parentFilter);
92	+	tcpReader.start();
93	+
94	+	// start the POA off
95	+	// now we are running, we just need to serve
96	+	// so we ask the orb to block for us until it has finished
97	+	refman.activatePOA();
98	+	refman.getLogger().write(toString, Logger.SYSINIT, "started");
99	+	refman.getORB().run();
100		}
101
102		/**
#	Line 168 | Line 106 | class FilterMain {
106		* properly.
107		*/
108		public static void usage() {
109	<	System.out.println("USAGE: java Filter <name>");
109	>	System.out.println("USAGE: java FilterMain <name>");
110		System.out.println("WHERE <name>:");
111		System.out.println("      The unique identifier for the Filter in the system.");
112		System.exit(1);

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