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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 1.10 by tdb, Thu Dec 7 00:02:17 2000 UTC vs.
Revision 1.24 by tdb, Wed Mar 20 13:40:29 2002 UTC

#	Line 1 | Line 1
1		//---PACKAGE DECLARATION---
2	<	package uk.ac.ukc.iscream.filtermanager;
2	>	package uk.org.iscream.cms.server.filtermanager;
3
4		//---IMPORTS---
5	<	import uk.ac.ukc.iscream.core.*;
6	<	import uk.ac.ukc.iscream.util.*;
5	>	import uk.org.iscream.cms.server.util.*;
6	>	import uk.org.iscream.cms.server.core.*;
7	>	import uk.org.iscream.cms.server.componentmanager.*;
8
9		/**
10	<	* The FilterManager handles assignment of Filters to hosts.
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 26 | class FilterManager {
26
27		//---STATIC METHODS---
28
29	<	public static void main(String[] args) {
26	<	// ***************************************
27	<	// VERY TEMPORARY - will find a better way
28	<	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
29	<	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
30	<	// ***************************************
31	<
32	<	// can't have a real toString() :)
33	<	String toString = "FilterManager(" + REVISION.substring(11, REVISION.length() - 2) + ")";
34	<
35	<	ReferenceManager refman = ReferenceManager.init(null, null);
36	<
37	<	refman.getLogger().write(toString, Logger.SYSINIT, "coming up");
38	<
39	<	// configuration variable we require
40	<	int listenPort = 0;
29	>	//---CONSTRUCTORS---
30
31	<	Configuration config = refman.getCM().getConfiguration(refman.getName());
32	<	if (config == null) {
33	<	throw new RuntimeException ("CRITICAL:Unable to obtain configuration" +
34	<	"         Advise you check the i-scream log for more information.");
35	<	} else {
36	<	try {
37	<	listenPort = Integer.parseInt(config.getProperty("FilterManager.listenPort"));
38	<	} catch (org.omg.CORBA.MARSHAL e) {
50	<	refman.getLogger().write(toString, Logger.FATAL, "required config property not present");
51	<	throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" +
52	<	"         Advise you check the i-scream log for more information.");
31	>	/**
32	>	* Constructs a FilterManager with the name given
33	>	*
34	>	* @param givenName the name
35	>	*/
36	>	public FilterManager(String givenName) {
37	>	NAME = givenName;
38	>	}
39
40	<	}
41	<	}
40	>	//---PUBLIC METHODS---
41	>
42	>	/**
43	>	* This method starts the FilterManager
44	>	*/
45	>	public void start() throws ComponentStartException {
46	>	// get references to key objects
47	>	_logger = _refman.getLogger();
48
49	<	refman.getLogger().write(toString, Logger.SYSINIT, "configured");
49	>	_logger.write(toString(), Logger.SYSINIT, "coming up");
50
51	<	refman.getLogger().write(toString, Logger.SYSINIT, "starting listener");
52	<
61	<	HostListener hostListener = new HostListener(listenPort);
51	>	// startup a thread to listen for hosts
52	>	HostListener hostListener = new HostListener();
53		hostListener.start();
54
55	<	refman.getLogger().write(toString, Logger.SYSINIT, "listener started");
65	<
55	>	_logger.write(toString(), Logger.SYSINIT, "started");
56		}
57	+
58	+	/**
59	+	* Does a dependency check. Used mainly at startup to
60	+	* see if the required dependencies (components) are up
61	+	* and running.
62	+	*
63	+	* @return a boolean value, true if the depdencies are satisfied
64	+	*/
65	+	public boolean depCheck() {
66	+	// This also depends on Filters.. but only when requested.
67	+	// I believe the code is in place to handle that elsewhere.
68	+	try {
69	+	org.omg.CORBA.Object obj;
70	+	obj = _refman.getCORBARef("iscream.Logger");
71	+	obj = _refman.getCORBARef("iscream.ConfigurationManager");
72	+	} catch(ComponentCORBAException e) {
73	+	System.err.println(toString() + ": Dependency Failure: "+e);
74	+	return false;
75	+	}
76	+	// dependency check suceeded
77	+	return true;
78	+	}
79	+
80	+	/**
81	+	* Overrides the {@link java.lang.Object#toString() Object.toString()}
82	+	* method to provide clean logging (every class should have this).
83	+	*
84	+	* This uses the uk.org.iscream.cms.server.util.NameFormat class
85	+	* to format the toString()
86	+	*
87	+	* @return the name of this class and its CVS revision
88	+	*/
89	+	public String toString() {
90	+	return FormatName.getName(
91	+	NAME,
92	+	getClass().getName(),
93	+	REVISION);
94	+	}
95
68	–	//---CONSTRUCTORS---
69	–
70	–	//---PUBLIC METHODS---
71	–
96		//---PRIVATE METHODS---
97
98		//---ACCESSOR/MUTATOR METHODS---
99
100		//---ATTRIBUTES---
101
102	+	/**
103	+	* This is the friendly identifier of the
104	+	* component this class is running in.
105	+	* eg, a Filter may be called "filter1",
106	+	* If this class does not have an owning
107	+	* component,  a name from the configuration
108	+	* can be placed here.  This name could also
109	+	* be changed to null for utility classes.
110	+	*/
111	+	private String _name = FilterManager.NAME;
112	+
113	+	/**
114	+	* This holds a reference to the
115	+	* system logger that is being used.
116	+	*/
117	+	private Logger _logger;
118	+
119	+	/**
120	+	* A reference to the reference manager in use
121	+	*/
122	+	private ReferenceManager _refman = ReferenceManager.getInstance();
123	+
124		//---STATIC ATTRIBUTES---
125	+
126	+	/**
127	+	* The friendly name for this component, used by
128	+	* all related classes.
129	+	* This is set from the configuration.
130	+	*/
131	+	public static String NAME;
132
133		}

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