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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/filtermanager/FilterManager.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/filtermanager/FilterManager.java (file contents):
Revision 1.8 by tdb, Thu Nov 23 01:44:59 2000 UTC vs.
Revision 1.13 by ajm, Tue Dec 12 19:55:45 2000 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	+	package uk.ac.ukc.iscream.filtermanager;
3
4		//---IMPORTS---
5	+	import uk.ac.ukc.iscream.util.*;
6		import uk.ac.ukc.iscream.core.*;
5	–	import uk.ac.ukc.iscream.filter.*;
6	–	import org.omg.CORBA.*;
7	–	import org.omg.CosNaming.*;
7
8		/**
9	<	* A FilterManager
9	>	* The FilterManager handles initialisation
10	>	* of hosts with the system, allowing hosts to
11	>	* gain their configuration and a hook to a Filter
12	>	* to talk to.
13		*
14		* @author  $Author$
15		* @version $Id$
16		*/
17	<	class FilterManager {
17	>	public class FilterManager implements uk.ac.ukc.iscream.util.Component {
18
19		//---FINAL ATTRIBUTES---
20
#	Line 21 | Line 23 | class FilterManager {
23		*/
24		public static final String REVISION = "$Revision$";
25
26	+	/**
27	+	* The friendly name for this component, used by
28	+	* all related classes.
29	+	*/
30	+	public static final String NAME = "FilterManager";
31	+
32		//---STATIC METHODS---
33
34	<	public static void main(String[] args) {
35	<	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
36	<	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
37	<
38	<	// can't have a real toString() :)
39	<	String toString = "FilterManager(" + REVISION.substring(11, REVISION.length() - 2) + ")";
40	<
41	<	try {
34	<	ORB orb = ORB.init(args, null);
35	<
36	<	// something to hold objects
37	<	org.omg.CORBA.Object objRef = null;
38	<
39	<	// get a hook to the name service
40	<	objRef = orb.resolve_initial_references("NameService");
41	<	NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
34	>	//---CONSTRUCTORS---
35	>
36	>	//---PUBLIC METHODS---
37	>
38	>	/**
39	>	* This method starts the FilterManager
40	>	*/
41	>	public void start() throws ComponentStartException {
42
43	<	// get a ref to the Configurator & the Logger
44	<	objRef = ncRef.resolve(ncRef.to_name("iscream.ConfigurationManager"));
45	<	ConfigurationManager configManager = ConfigurationManagerHelper.narrow(objRef);
46	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Logger"));
47	<	Logger logger = LoggerHelper.narrow(objRef);
48	<
49	<	logger.write(toString, Logger.SYSINIT, "coming up");
50	<
51	<	// create the servant
52	<	//FilterManagerServant servant = new FilterManagerServant(logger);
53	<
54	<	// register the servant with the name service
55	<	//objRef = poa.servant_to_reference(servant);
56	<	//ncRef.bind(ncRef.to_name("iscream.FilterManager"), objRef);
57	<
58	<	// start the POA off
59	<	//poa.the_POAManager().activate();
60	<
61	<	// get the config
62	<	Configuration myConfig = configManager.getConfiguration("FilterManager");
63	<
64	<	// some place holders for the configuration
65	<	int port = 0;
66	<
67	<	// did we?
68	<	if (myConfig == null) {
69	<	System.out.println("Failed: is it there?, can you read it?");
43	>	_logger.write(toString(), Logger.SYSINIT, "coming up");
44	>
45	>	// configuration variable we require
46	>	int listenPort = 0;
47	>
48	>	Configuration config = _refman.getCM().getConfiguration("FilterManager");
49	>	if (config == null) {
50	>	System.err.println("CRITICAL:Unable to obtain configuration" +
51	>	"\n         Advise you check the i-scream log for more information.");
52	>	_logger.write(toString(), Logger.FATAL, "ERROR - unable to obtain configuration");
53	>	System.exit(1);
54	>	} else {
55	>	try {
56	>	listenPort = Integer.parseInt(config.getProperty("FilterManager.listenPort"));
57	>	} catch (org.omg.CORBA.MARSHAL e) {
58	>	System.err.println ("CRITICAL:Unable to obtain required configuration property" +
59	>	"\n         Advise you check the i-scream log for more information.");
60	>	_logger.write(toString(), Logger.FATAL, "ERROR - required configuration property not present");
61		System.exit(1);
71	–	} else {
72	–
73	–	// get the property
74	–	try {
75	–	port = new Integer(myConfig.getProperty("FilterManager.listenPort")).intValue();
76	–	} catch (org.omg.CORBA.MARSHAL e) {
77	–	System.out.println("Caught org.omg.CORBA.MARSHAL, must be a null we got back");
78	–	System.exit(1);
79	–	}
62		}
81	–	logger.write(toString, Logger.SYSMSG, "configured");
82	–	logger.write(toString, Logger.SYSINIT, "starting listener");
83	–
84	–	HostListener hostListener = new HostListener(logger, configManager, port, ncRef);
85	–	hostListener.start();
86	–
87	–	logger.write(toString, Logger.SYSINIT, "started");
88	–
89	–	} catch (Exception e) {
90	–	System.err.println("FILTER MANAGER ERROR: " + e);
91	–	e.printStackTrace(System.out);
63		}
64	+
65	+	_logger.write(toString(), Logger.SYSMSG, "configured");
66	+
67	+	HostListener hostListener = new HostListener(listenPort);
68	+	hostListener.start();
69	+
70	+	_logger.write(toString(), Logger.SYSINIT, "started");
71		}
72
73	<	//---CONSTRUCTORS---
73	>	/**
74	>	* Overrides the {@link java.lang.Object#toString() Object.toString()}
75	>	* method to provide clean logging (every class should have this).
76	>	*
77	>	* This uses the uk.ac.ukc.iscream.util.NameFormat class
78	>	* to format the toString()
79	>	*
80	>	* @return the name of this class and its CVS revision
81	>	*/
82	>	public String toString() {
83	>	return FormatName.getName(
84	>	_name,
85	>	getClass().getName(),
86	>	REVISION);
87	>	}
88
97	–	//---PUBLIC METHODS---
98	–
89		//---PRIVATE METHODS---
90
91		//---ACCESSOR/MUTATOR METHODS---
92
93		//---ATTRIBUTES---
94	+
95	+	/**
96	+	* This is the friendly identifier of the
97	+	* component this class is running in.
98	+	* eg, a Filter may be called "filter1",
99	+	* If this class does not have an owning
100	+	* component,  a name from the configuration
101	+	* can be placed here.  This name could also
102	+	* be changed to null for utility classes.
103	+	*/
104	+	private String _name = FilterManager.NAME;
105	+
106	+	/**
107	+	* This holds a reference to the
108	+	* system logger that is being used.
109	+	*/
110	+	private Logger _logger = ReferenceManager.getInstance().getLogger();
111	+
112	+	/**
113	+	* A reference to the reference manager in use
114	+	*/
115	+	private ReferenceManager _refman = ReferenceManager.getInstance();
116
117		//---STATIC ATTRIBUTES---
118

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