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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 1.3 by tdb, Thu Nov 16 18:14:05 2000 UTC vs.
Revision 1.16 by tdb, Sun Jan 28 06:03:58 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.*;
8	<	import org.omg.PortableServer.*;
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 22 | 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	>
44	>	_logger.write(toString(), Logger.SYSINIT, "coming up");
45
46	<	// can't have a real toString() :)
47	<	String toString = "FilterManager(" + REVISION.substring(11, REVISION.length() - 2) + ")";
46	>	// configuration variable we require
47	>	int listenPort = 0;
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 the Root POA
56	<	objRef = orb.resolve_initial_references("RootPOA");
57	<	POA poa = POAHelper.narrow(objRef);
58	<
44	<	// get a hook to the name service
45	<	objRef = orb.resolve_initial_references("NameService");
46	<	NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
47	<
48	<	// get a ref to the Configurator & the Logger
49	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Configurator"));
50	<	Configurator configurator = ConfiguratorHelper.narrow(objRef);
51	<	objRef = ncRef.resolve(ncRef.to_name("iscream.Logger"));
52	<	Logger logger = LoggerHelper.narrow(objRef);
53	<
54	<	logger.write(toString, Logger.SYSINIT, "coming up");
55	<
56	<	// create the filterManagerRef to our servant
57	<	//filterManagerRef = new FilterManagerServant;
58	<
59	<	// register the servant with the name service
60	<	//objRef = poa.servant_to_reference(filterManagerRef);
61	<	//ncRef.bind(ncRef.to_name("iscream.FilterManager"), objRef);
62	<
63	<	// start the POA off
64	<	poa.the_POAManager().activate();
65	<
66	<	// get the config
67	<	Configuration myConfig = configurator.getConfiguration("filterManager");
68	<
69	<	// some place holders for the configuration
70	<	int port = 0;
71	<
72	<	// did we?
73	<	if (myConfig == null) {
74	<	System.out.println("Failed: is it there?, can you read it?");
75	<	System.exit(1);
76	<	} else {
77	<
78	<	// get the property
79	<	try {
80	<	port = new Integer(myConfig.getProperty("listenPort")).intValue();
81	<	} catch (org.omg.CORBA.MARSHAL e) {
82	<	System.out.println("Caught org.omg.CORBA.MARSHAL, must be a null we got back");
83	<	System.exit(1);
84	<	}
49	>	Configuration config = _refman.getCM().getConfiguration("FilterManager");
50	>	if (config == null) {
51	>	throw new ComponentStartException("Unable to obtain configuration for component");
52	>	}
53	>	else {
54	>	try {
55	>	// get the configuration properties we need
56	>	listenPort = Integer.parseInt(config.getProperty("FilterManager.listenPort"));
57	>	} catch (org.omg.CORBA.MARSHAL e) {
58	>	throw new ComponentStartException("Unable to obtain requried configuration property for component");
59		}
86	–	logger.write(toString, Logger.SYSINIT, "configured");
87	–	logger.write(toString, Logger.SYSINIT, "starting listener");
88	–
89	–	FilterManagerListener fml = new FilterManagerListener(logger, configurator, port);
90	–	fml.start();
91	–
92	–	logger.write(toString, Logger.SYSINIT, "started");
93	–
94	–	} catch (Exception e) {
95	–	System.err.println("FILTER MANAGER ERROR: " + e);
96	–	e.printStackTrace(System.out);
60		}
61	+
62	+	_logger.write(toString(), Logger.SYSMSG, "configured");
63	+
64	+	// startup a thread to listen for hosts
65	+	HostListener hostListener = new HostListener(listenPort);
66	+	hostListener.start();
67	+
68	+	_logger.write(toString(), Logger.SYSINIT, "started");
69		}
70
71	<	//---CONSTRUCTORS---
71	>	/**
72	>	* Overrides the {@link java.lang.Object#toString() Object.toString()}
73	>	* method to provide clean logging (every class should have this).
74	>	*
75	>	* This uses the uk.ac.ukc.iscream.util.NameFormat class
76	>	* to format the toString()
77	>	*
78	>	* @return the name of this class and its CVS revision
79	>	*/
80	>	public String toString() {
81	>	return FormatName.getName(
82	>	_name,
83	>	getClass().getName(),
84	>	REVISION);
85	>	}
86
102	–	//---PUBLIC METHODS---
103	–
87		//---PRIVATE METHODS---
88
89		//---ACCESSOR/MUTATOR METHODS---
90
91		//---ATTRIBUTES---
92	+
93	+	/**
94	+	* This is the friendly identifier of the
95	+	* component this class is running in.
96	+	* eg, a Filter may be called "filter1",
97	+	* If this class does not have an owning
98	+	* component,  a name from the configuration
99	+	* can be placed here.  This name could also
100	+	* be changed to null for utility classes.
101	+	*/
102	+	private String _name = FilterManager.NAME;
103	+
104	+	/**
105	+	* This holds a reference to the
106	+	* system logger that is being used.
107	+	*/
108	+	private Logger _logger = ReferenceManager.getInstance().getLogger();
109	+
110	+	/**
111	+	* A reference to the reference manager in use
112	+	*/
113	+	private ReferenceManager _refman = ReferenceManager.getInstance();
114
115		//---STATIC ATTRIBUTES---
116

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