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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 1.17 by ajm, Fri Feb 23 17:12:40 2001 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.*;
7	<	import uk.ac.ukc.iscream.filter.*;
6	<	import org.omg.CORBA.*;
7	<	import org.omg.CosNaming.*;
7	>	import uk.ac.ukc.iscream.componentmanager.*;
8
9		/**
10	<	* A FilterManager
10	>	* The FilterManager handles initialisation
11	>	* of hosts with the system, allowing hosts to
12	>	* gain their configuration and a hook to a Filter
13	>	* to talk to.
14		*
15		* @author  $Author$
16		* @version $Id$
17		*/
18	<	class FilterManager {
18	>	public class FilterManager implements Component {
19
20		//---FINAL ATTRIBUTES---
21
#	Line 21 | Line 24 | class FilterManager {
24		*/
25		public static final String REVISION = "$Revision$";
26
27	+	/**
28	+	* The friendly name for this component, used by
29	+	* all related classes.
30	+	*/
31	+	public static final String NAME = "FilterManager";
32	+
33		//---STATIC METHODS---
34
35	<	public static void main(String[] args) {
36	<	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
37	<	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
35	>	//---CONSTRUCTORS---
36	>
37	>	//---PUBLIC METHODS---
38	>
39	>	/**
40	>	* This method starts the FilterManager
41	>	*/
42	>	public void start() throws ComponentStartException {
43	>	// get references to key objects
44	>	_refman = ReferenceManager.getInstance();
45	>	_logger = ReferenceManager.getInstance().getLogger();
46
47	<	// can't have a real toString() :)
31	<	String toString = "FilterManager(" + REVISION.substring(11, REVISION.length() - 2) + ")";
47	>	_logger.write(toString(), Logger.SYSINIT, "coming up");
48
49	<	try {
50	<	ORB orb = ORB.init(args, null);
51	<
52	<	// something to hold objects
53	<	org.omg.CORBA.Object objRef = null;
54	<
55	<	// get a hook to the name service
56	<	objRef = orb.resolve_initial_references("NameService");
57	<	NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
58	<
59	<	// get a ref to the Configurator & the Logger
60	<	objRef = ncRef.resolve(ncRef.to_name("iscream.ConfigurationManager"));
61	<	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?");
70	<	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	<	}
49	>	// configuration variable we require
50	>	int listenPort = 0;
51	>
52	>	Configuration config = _refman.getCM().getConfiguration("FilterManager");
53	>	if (config == null) {
54	>	throw new ComponentStartException("Unable to obtain configuration for component");
55	>	}
56	>	else {
57	>	try {
58	>	// get the configuration properties we need
59	>	listenPort = Integer.parseInt(config.getProperty("FilterManager.listenPort"));
60	>	} catch (org.omg.CORBA.MARSHAL e) {
61	>	throw new ComponentStartException("Unable to obtain requried configuration property for component");
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	+	// startup a thread to listen for hosts
68	+	HostListener hostListener = new HostListener(listenPort);
69	+	hostListener.start();
70	+
71	+	_logger.write(toString(), Logger.SYSINIT, "started");
72		}
73
74	<	//---CONSTRUCTORS---
74	>	/**
75	>	* Overrides the {@link java.lang.Object#toString() Object.toString()}
76	>	* method to provide clean logging (every class should have this).
77	>	*
78	>	* This uses the uk.ac.ukc.iscream.util.NameFormat class
79	>	* to format the toString()
80	>	*
81	>	* @return the name of this class and its CVS revision
82	>	*/
83	>	public String toString() {
84	>	return FormatName.getName(
85	>	_name,
86	>	getClass().getName(),
87	>	REVISION);
88	>	}
89
97	–	//---PUBLIC METHODS---
98	–
90		//---PRIVATE METHODS---
91
92		//---ACCESSOR/MUTATOR METHODS---
93
94		//---ATTRIBUTES---
95	+
96	+	/**
97	+	* This is the friendly identifier of the
98	+	* component this class is running in.
99	+	* eg, a Filter may be called "filter1",
100	+	* If this class does not have an owning
101	+	* component,  a name from the configuration
102	+	* can be placed here.  This name could also
103	+	* be changed to null for utility classes.
104	+	*/
105	+	private String _name = FilterManager.NAME;
106	+
107	+	/**
108	+	* This holds a reference to the
109	+	* system logger that is being used.
110	+	*/
111	+	private Logger _logger;
112	+
113	+	/**
114	+	* A reference to the reference manager in use
115	+	*/
116	+	private ReferenceManager _refman;
117
118		//---STATIC ATTRIBUTES---
119

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