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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 1.30 by tdb, Wed Mar 14 01:43:58 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	>	_logger = _refman.getLogger();
43	>
44		_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;
45
46	<	Configuration config = _refman.getCM().getConfiguration("RootFilter");
47	<	if (config == null) {
48	<	System.err.println("CRITICAL:Unable to obtain configuration" +
49	<	"\n         Advise you check the i-scream log for more information.");
50	<	_logger.write(toString(), Logger.FATAL, "ERROR - unable to obtain configuration");
51	<	System.exit(1);
52	<	} else {
53	<	try {
54	<	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	<	}
46	>	ConfigurationProxy cp = ConfigurationProxy.getInstance();
47	>	String configName = "RootFilter";
48	>
49	>	// set the name of the root filter
50	>	try {
51	>	NAME = cp.getProperty(configName, "RootFilter.name");
52	>	} catch (PropertyNotFoundException e) {
53	>	NAME = null;
54	>	_logger.write(toString(), Logger.WARNING, "RootFilter name not set: "+e);
55		}
66	–	// now we have the name of the Root Filter we set it
67	–	NAME = ourName;
56
57	<	_logger.write(toString(), Logger.SYSINIT, "configured");
57	>	// try and get the names of the ciReal and ciDB
58	>	String realInterface, dbInterface;
59	>	try {
60	>	realInterface = cp.getProperty(configName, "RootFilter.realtimeInterfaceName");
61	>	dbInterface = cp.getProperty(configName, "RootFilter.dbInterfaceName");
62	>	} catch (PropertyNotFoundException e) {
63	>	_logger.write(toString(), Logger.DEBUG, "Optional config not set: "+e);
64	>	realInterface = null;
65	>	dbInterface = null;
66	>	}
67
68		ClientInterface ciReal = null, ciDB = null;
69		// get reference to the client interfaces - the real time one
#	Line 77 | Line 74 | public class RootFilter implements Component {
74		if (dbInterface != null) {
75		ciDB = ClientInterfaceHelper.narrow(_refman.getCORBARef("iscream.ClientInterface." + dbInterface));
76		}
77	<
77	>
78	>	// setup a queue
79		Queue queue = new Queue();
80
81	+	// startup a monitor on this queue
82	+	try {
83	+	// try to get the interval, if this fails, we won't start up the monitor
84	+	int queueMonitorInterval = Integer.parseInt(cp.getProperty(configName, "Queue.MonitorInterval"));
85	+	String queueName = NAME + " RootFilter";
86	+	queue.startMonitor(queueMonitorInterval*1000, queueName);
87	+	} catch (PropertyNotFoundException e) {
88	+	_logger.write(toString(), Logger.WARNING, "failed to find queue monitor config, disabling. " + e);
89	+	}
90	+
91		if (realInterface == null) {
92		_logger.write(toString(), Logger.DEBUG, "hooked to interfaces - " + dbInterface);
93		CIWrapper c = new CIWrapper(ciDB, queue);
#	Line 104 | Line 112 | public class RootFilter implements Component {
112
113		_logger.write(toString(), Logger.SYSINIT, "started");
114
115	<	// !!!! TEMPORARY CODE !!!!
116	<	// Monitor the queue's status (queue 0 and 1 - big assumption!)
117	<	while(true) {
118	<	// wait 30 seconds
119	<	try { Thread.sleep(30000); } catch(Exception e) {}
120	<	int q0 = _queue.queueSize(0);
121	<	int q1 = _queue.queueSize(1);
122	<	int tot = _queue.elementCount();
123	<	String message = "Queue status - queue1: "+q1+" queue2: "+q2+" total: "+tot;
124	<	_logger.write(toString(), Logger.DEBUG, message);
115	>	}
116	>
117	>	/**
118	>	* Does a dependency check. Used mainly at startup to
119	>	* see if the required dependencies (components) are up
120	>	* and running.
121	>	*
122	>	* @return a boolean value, true if the depdencies are satisfied
123	>	*/
124	>	public boolean depCheck() {
125	>	try {
126	>	org.omg.CORBA.Object obj;
127	>	// first check the ConfigurationManager is alive
128	>	obj = _refman.getCORBARef("iscream.ConfigurationManager");
129	>	// then get some info on the CLI and DBI
130	>	ConfigurationProxy cp = ConfigurationProxy.getInstance();
131	>	String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
132	>	String dbi = cp.getProperty("RootFilter", "RootFilter.dbInterfaceName");
133	>	// finally check the CLI and DBI are alive
134	>	obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
135	>	obj = _refman.getCORBARef("iscream.ClientInterface." + dbi);
136	>	} catch(ComponentCORBAException e) {
137	>	_logger.write(toString(), Logger.WARNING, "Dependency Failure: "+e);
138	>	return false;
139	>	} catch(PropertyNotFoundException e) {
140	>	_logger.write(toString(), Logger.WARNING, "Unable to obtain configuration: "+e);
141	>	return false;
142		}
143	+	// dependency check suceeded
144	+	return true;
145		}
146
147		/**
#	Line 143 | Line 170 | public class RootFilter implements Component {
170		* This holds a reference to the
171		* system logger that is being used.
172		*/
173	<	private Logger _logger = ReferenceManager.getInstance().getLogger();
173	>	private Logger _logger;
174
175		/**
176		* A reference to the reference manager in use

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