ViewVC Help

View File | Revision Log | Show Annotations | Revision Graph | Root Listing

root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/rootfilter/RootFilter.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/rootfilter/RootFilter.java (file contents):
Revision 1.8 by ajm, Mon Dec 4 18:12:13 2000 UTC vs.
Revision 1.28 by tdb, Tue Mar 13 16:37:31 2001 UTC

#	Line 1 | Line 1
1	+
2		//---PACKAGE DECLARATION---
3		package uk.ac.ukc.iscream.rootfilter;
4
5		//---IMPORTS---
6		import uk.ac.ukc.iscream.util.*;
7		import uk.ac.ukc.iscream.core.*;
8	+	import uk.ac.ukc.iscream.componentmanager.*;
9		import uk.ac.ukc.iscream.clientinterface.*;
10
11		/**
12	<	* A Filter Startup Class
12	>	* The root filter is what all filters talk to
13	>	* Hosts cannot talk to this implementation of a filter.
14	>	* It provides hooks to all data interfaces for the system
15	>	* namely the client interface and the db interface.
16	>	* This is an i-scream component that starts the
17	>	* RootFilter services.
18		*
19		* @author  $Author$
20		* @version $Id$
21		*/
22	<	class RootFilterMain {
22	>	public class RootFilter implements Component {
23
24		//---FINAL ATTRIBUTES---
25
#	Line 20 | Line 27 | class RootFilterMain {
27		* The current CVS revision of this class
28		*/
29		public static final String REVISION = "$Revision$";
30	<
30	>
31		//---STATIC METHODS---
32
33	<	public static void main(String[] args) {
27	<	// ***************************************
28	<	// VERY TEMPORARY - will find a better way
29	<	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
30	<	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
31	<	// ***************************************
33	>	//---CONSTRUCTORS---
34
35	<	ReferenceManager refman = ReferenceManager.init(null, null);
34	<
35	<	// can't have a real toString() :)
36	<	String toString = "RootFilter{" + refman.getName() + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
35	>	//---PUBLIC METHODS---
36
37	<	refman.getLogger().write(toString, Logger.SYSINIT, "coming up");
38	<
39	<	// configuration variables we require
40	<	String ourName = null;
41	<	String realInterface = null;
42	<	String dbInterface = null;
37	>	/**
38	>	* This starts the Root Filter for the system
39	>	*/
40	>	public void start() throws ComponentStartException {
41	>	// get references to key objects
42	>	_refman = ReferenceManager.getInstance();
43	>	_logger = ReferenceManager.getInstance().getLogger();
44
45	<	Configuration config = refman.getCM().getConfiguration("RootFilter");
46	<	if (config == null) {
47	<	throw new RuntimeException ("CRITICAL:Unable to obtain configuration" +
48	<	"         Advise you check the i-scream log for more information.");
49	<	} else {
50	<	try {
51	<	ourName = config.getProperty("RootFilter.name");
52	<	realInterface = config.getProperty("RootFilter.realtimeInterfaceName");
53	<	dbInterface = config.getProperty("RootFilter.dbInterfaceName");
54	<	} catch (org.omg.CORBA.MARSHAL e) {
55	<	refman.getLogger().write(toString, Logger.FATAL, "required config property not present");
56	<	throw new RuntimeException ("CRITICAL:Unable to obtain required configuration property" +
57	<	"         Advise you check the i-scream log for more information.");
58	<
59	<	}
45	>	_logger.write(toString(), Logger.SYSINIT, "coming up");
46	>
47	>	ConfigurationProxy cp = ConfigurationProxy.getInstance();
48	>	String configName = "RootFilter";
49	>
50	>	// set the name of the root filter
51	>	try {
52	>	NAME = cp.getProperty(configName, "RootFilter.name");
53	>	} catch (PropertyNotFoundException e) {
54	>	NAME = null;
55	>	_logger.write(toString(), Logger.WARNING, "RootFilter name not set: "+e);
56		}
57	<	// now we have the name of the Root Filter we set it
58	<	refman.setName(ourName);
59	<	toString = "RootFilter{" + refman.getName() + "}(" + REVISION.substring(11, REVISION.length() - 2) + ")";
60	<	refman.getLogger().write(toString, Logger.SYSINIT, "configured");
61	<
57	>
58	>	// try and get the names of the ciReal and ciDB
59	>	String realInterface, dbInterface;
60	>	try {
61	>	realInterface = cp.getProperty(configName, "RootFilter.realtimeInterfaceName");
62	>	dbInterface = cp.getProperty(configName, "RootFilter.dbInterfaceName");
63	>	} catch (PropertyNotFoundException e) {
64	>	_logger.write(toString(), Logger.DEBUG, "Optional config not set: "+e);
65	>	realInterface = null;
66	>	dbInterface = null;
67	>	}
68	>
69	>	ClientInterface ciReal = null, ciDB = null;
70		// get reference to the client interfaces - the real time one
71	<	ClientInterface ciReal = ClientInterfaceHelper.narrow(refman.getCORBARef("iscream.ClientInterface." + realInterface));
72	<	// - the db one ... but it's not done yet
73	<	//ClientInterface ciDB = ClientInterfaceHelper.narrow(refman.getCORBARef("iscream.ClientInterface." + dbInterface));
74	<	// so for the time being we null it.
75	<	ClientInterface ciDB = null;
76	<	refman.getLogger().write(toString, Logger.DEBUG, "hooked to interfaces - " + realInterface + " & " + dbInterface);
71	>	if (realInterface != null) {
72	>	ciReal = ClientInterfaceHelper.narrow(_refman.getCORBARef("iscream.ClientInterface." + realInterface));
73	>	}
74	>	// get reference to the client interfaces - and the db one
75	>	if (dbInterface != null) {
76	>	ciDB = ClientInterfaceHelper.narrow(_refman.getCORBARef("iscream.ClientInterface." + dbInterface));
77	>	}
78	>
79	>	// setup a queue
80	>	Queue queue = new Queue();
81
82	<	ClientInterface[] clientInterfaces = {ciReal, ciDB};
82	>	// startup a monitor on this queue
83	>	try {
84	>	// try to get the interval, if this fails, we won't start up the monitor
85	>	int queueMonitorInterval = Integer.parseInt(cp.getProperty(configName, "Queue.MonitorInterval"));
86	>	String queueName = NAME + " RootFilter";
87	>	queue.startMonitor(queueMonitorInterval*1000, queueName);
88	>	} catch (PropertyNotFoundException e) {
89	>	_logger.write(toString(), Logger.WARNING, "failed to find queue monitor config, disabling. " + e);
90	>	}
91
92	+	if (realInterface == null) {
93	+	_logger.write(toString(), Logger.DEBUG, "hooked to interfaces - " + dbInterface);
94	+	CIWrapper c = new CIWrapper(ciDB, queue);
95	+	c.start();
96	+	} else if (dbInterface == null) {
97	+	_logger.write(toString(), Logger.DEBUG, "hooked to interfaces - " + realInterface);
98	+	CIWrapper c = new CIWrapper(ciReal, queue);
99	+	c.start();
100	+	} else {
101	+	_logger.write(toString(), Logger.DEBUG, "hooked to interfaces - " + realInterface + " & " + dbInterface);
102	+	CIWrapper c = new CIWrapper(ciReal, queue);
103	+	c.start();
104	+	c = new CIWrapper(ciDB, queue);
105	+	c.start();
106	+	}
107	+
108		// RootFilterServant start (for inbound child filter data)
109	<	refman.getLogger().write(toString, Logger.DEBUG, "starting Root Filter");
110	<	RootFilterServant filterServant = new RootFilterServant(clientInterfaces);
109	>	_logger.write(toString(), Logger.DEBUG, "starting Root Filter");
110	>	RootFilterServant filterServant = new RootFilterServant(queue);
111		// bind to the naming service as a filter
112	<	refman.bindToOrb(filterServant, "iscream.Filter." + refman.getName());
112	>	_refman.bindToOrb(filterServant, "iscream.Filter." + RootFilter.NAME);
113
114	<	// start the POA off
115	<	// now we are running, we just need to serve
84	<	// so we ask the orb to block for us until it has finished
85	<	refman.activatePOA();
86	<	refman.getLogger().write(toString, Logger.SYSINIT, "started");
87	<	refman.getORB().run();
114	>	_logger.write(toString(), Logger.SYSINIT, "started");
115	>
116		}
117	<
118	<	/**
119	<	* A simple method to print the usage of this class.
120	<	* It never returns, but instead exits to the system
121	<	* with a value 1, to indicate the system did not start
122	<	* properly.
117	>
118	>	/**
119	>	* Overrides the {@link java.lang.Object#toString() Object.toString()}
120	>	* method to provide clean logging (every class should have this).
121	>	*
122	>	* This uses the uk.ac.ukc.iscream.util.NameFormat class
123	>	* to format the toString()
124	>	*
125	>	* @return the name of this class and its CVS revision
126		*/
127	<	public static void usage() {
128	<	System.out.println("USAGE: java FilterMain <name>");
129	<	System.out.println("WHERE <name>:");
130	<	System.out.println("      The unique identifier for the Filter in the system.");
131	<	System.exit(1);
127	>	public String toString() {
128	>	return FormatName.getName(
129	>	NAME,
130	>	getClass().getName(),
131	>	REVISION);
132		}
133
103	–	//---CONSTRUCTORS---
104	–
105	–	//---PUBLIC METHODS---
106	–
134		//---PRIVATE METHODS---
135
136		//---ACCESSOR/MUTATOR METHODS---
137
138		//---ATTRIBUTES---
139
140	+	/**
141	+	* This holds a reference to the
142	+	* system logger that is being used.
143	+	*/
144	+	private Logger _logger;
145	+
146	+	/**
147	+	* A reference to the reference manager in use
148	+	*/
149	+	private ReferenceManager _refman;
150	+
151		//---STATIC ATTRIBUTES---
152	+
153	+	/**
154	+	* The friendly name for this component, used by
155	+	* all related classes.
156	+	* This is set from the configuration.
157	+	*/
158	+	public static String NAME;
159
160		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines