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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 1.18 by tdb, Fri Jan 19 01:12:42 2001 UTC vs.
Revision 1.29 by tdb, Wed Mar 14 01:34:34 2001 UTC

#	Line 1 | Line 1
1	+
2		//---PACKAGE DECLARATION---
3		package uk.ac.ukc.iscream.rootfilter;
4
#	Line 37 | Line 38 | public class RootFilter implements Component {
38		* This starts the Root Filter for the system
39		*/
40		public void start() throws ComponentStartException {
41	<
41	>	// get references to key objects
42	>	_refman = ReferenceManager.getInstance();
43	>	_logger = ReferenceManager.getInstance().getLogger();
44	>
45		_logger.write(toString(), Logger.SYSINIT, "coming up");
42	–
43	–	// configuration variables we require
44	–	String ourName = null;
45	–	String realInterface = null;
46	–	String dbInterface = null;
46
47	<	Configuration config = _refman.getCM().getConfiguration("RootFilter");
48	<	if (config == null) {
49	<	System.err.println("CRITICAL:Unable to obtain configuration" +
50	<	"\n         Advise you check the i-scream log for more information.");
51	<	_logger.write(toString(), Logger.FATAL, "ERROR - unable to obtain configuration");
52	<	System.exit(1);
53	<	} else {
54	<	try {
55	<	ourName = config.getProperty("RootFilter.name");
57	<	realInterface = config.getProperty("RootFilter.realtimeInterfaceName");
58	<	dbInterface = config.getProperty("RootFilter.dbInterfaceName");
59	<	} catch (org.omg.CORBA.MARSHAL e) {
60	<	System.err.println ("CRITICAL:Unable to obtain required configuration property" +
61	<	"\n         Advise you check the i-scream log for more information.");
62	<	_logger.write(toString(), Logger.FATAL, "ERROR - required configuration property not present");
63	<	System.exit(1);
64	<	}
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		}
66	–	// now we have the name of the Root Filter we set it
67	–	NAME = ourName;
57
58	<	_logger.write(toString(), Logger.SYSINIT, "configured");
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
#	Line 77 | Line 75 | public class RootFilter implements Component {
75		if (dbInterface != null) {
76		ciDB = ClientInterfaceHelper.narrow(_refman.getCORBARef("iscream.ClientInterface." + dbInterface));
77		}
78	<
78	>
79	>	// setup a queue
80		Queue queue = new Queue();
81
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);
#	Line 104 | Line 113 | public class RootFilter implements Component {
113
114		_logger.write(toString(), Logger.SYSINIT, "started");
115
116	<	// !!!! TEMPORARY CODE !!!!
117	<	// Monitor the queue's status (queue 0 and 1 - big assumption!)
118	<	while(true) {
119	<	// wait 30 seconds
120	<	try { Thread.sleep(30000); } catch(Exception e) {}
121	<	int q0 = _queue.queueSize(0);
122	<	int q1 = _queue.queueSize(1);
123	<	int tot = _queue.elementCount();
124	<	String message = "Queue status - queue1: "+q1+" queue2: "+q2+" total: "+tot;
125	<	_logger.write(toString(), Logger.DEBUG, message);
116	>	}
117	>
118	>	/**
119	>	* Does a dependency check. Used mainly at startup to
120	>	* see if the required dependencies (components) are up
121	>	* and running.
122	>	*
123	>	* @return a boolean value, true if the depdencies are satisfied
124	>	*/
125	>	public boolean depCheck() {
126	>	try {
127	>	org.omg.CORBA.Object obj;
128	>	// first check the ConfigurationManager is alive
129	>	obj = _refman.getCORBARef("iscream.ConfigurationManager");
130	>	// then get some info on the CLI and DBI
131	>	ConfigurationProxy cp = ConfigurationProxy.getInstance();
132	>	String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
133	>	String dbi = cp.getProperty("RootFilter", "RootFilter.dbInterfaceName");
134	>	// finally check the CLI and DBI are alive
135	>	obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
136	>	obj = _refman.getCORBARef("iscream.ClientInterface." + dbi);
137	>	} catch(ComponentCORBAException e) {
138	>	_logger.write(toString(), Logger.WARNING, "Dependency Failure: "+e);
139	>	return false;
140	>	} catch(PropertyNotFoundException e) {
141	>	_logger.write(toString(), Logger.WARNING, "Unable to obtain configuration: "+e);
142	>	return false;
143		}
144	+	// dependency check suceeded
145	+	return true;
146		}
147
148		/**
#	Line 143 | Line 171 | public class RootFilter implements Component {
171		* This holds a reference to the
172		* system logger that is being used.
173		*/
174	<	private Logger _logger = ReferenceManager.getInstance().getLogger();
174	>	private Logger _logger;
175
176		/**
177		* A reference to the reference manager in use
178		*/
179	<	private ReferenceManager _refman = ReferenceManager.getInstance();
179	>	private ReferenceManager _refman;
180
181		//---STATIC ATTRIBUTES---
182

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