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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/client/ClientMain.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/client/ClientMain.java (file contents):
Revision 1.3 by tdb, Mon Feb 5 02:58:54 2001 UTC vs.
Revision 1.14 by tdb, Wed Mar 14 01:54:24 2001 UTC

#	Line 1 | Line 1
1	+	//---PACKAGE DECLARATION---
2		package uk.ac.ukc.iscream.client;
3
4	<	import uk.ac.ukc.iscream.client.*;
4	>	//---IMPORTS---
5		import uk.ac.ukc.iscream.clientinterface.*;
6		import uk.ac.ukc.iscream.componentmanager.*;
7	<	import org.omg.CosNaming.*;
8	<	import org.omg.CORBA.*;
8	<	import org.omg.PortableServer.*;
7	>	import uk.ac.ukc.iscream.core.*;
8	>	import uk.ac.ukc.iscream.util.*;
9
10	<	public class ClientMain {
11	<	public static void main(String args[]) {
12	<	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
13	<	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
14	<	try {
15	<	ReferenceManager _refman = ReferenceManager.getInstance();
16	<	_refman.activatePOA();
10	>	/**
11	>	* A startup component for the Local Clients.
12	>	*
13	>	* @author  $Author$
14	>	* @version $Id$
15	>	*/
16	>	public class ClientMain implements Component {
17
18	<	ClientServant corbaServant = new ClientServant();
19	<	org.omg.CORBA.Object o = _refman.getRootPOA().servant_to_reference(corbaServant);
20	<	Client client = ClientHelper.narrow(o);
18	>	//---FINAL ATTRIBUTES---
19
20	<	o = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
21	<	CorbaClientListener lRef = CorbaClientListenerHelper.narrow(o);
20	>	/**
21	>	* The current CVS revision of this class
22	>	*/
23	>	public static final String REVISION = "$Revision$";
24	>
25	>	/**
26	>	* The friendly name for this component, used by
27	>	* all related classes.
28	>	*/
29	>	public static final String NAME = "LocalClient";
30	>
31	>	//---STATIC METHODS---
32
33	<	boolean result;
26	<	System.out.println(" -- connecting -- ");
27	<	CorbaControlHandler handler = lRef.connect(client);
28	<	System.out.println(" -- starting data -- ");
29	<	result = handler.startData();
30	<	System.out.println(" -- sleep for 30s -- ");
31	<	Thread.sleep(30000);
32	<	System.out.println(" -- stopping data -- ");
33	<	result = handler.stopData();
34	<	Thread.sleep(2000);
35	<	System.out.println(" -- completed -- ");
33	>	//---CONSTRUCTORS---
34
35	+	//---PUBLIC METHODS---
36	+
37	+	/**
38	+	* This starts the Local Client component
39	+	*/
40	+	public void start() throws ComponentStartException {
41	+	// get references to key objects
42	+	_logger = _refman.getLogger();
43	+
44	+	_logger.write(toString(), Logger.SYSINIT, "coming up");
45	+
46	+	// configuration variables we require
47	+	int queueMonitorInterval = 0;
48	+
49	+	Configuration config = _refman.getCM().getConfiguration("LocalClient");
50	+	if (config == null) {
51	+	throw new ComponentStartException("Unable to obtain configuration for component");
52		}
53	<	catch (Exception e) {
54	<	System.out.println("ERROR : " + e);
55	<	e.printStackTrace(System.out);
53	>	else {
54	>	try {
55	>	// get the configuration properties we need
56	>	queueMonitorInterval = Integer.parseInt(config.getProperty("Queue.MonitorInterval"));
57	>	} catch (org.omg.CORBA.MARSHAL e) {
58	>	throw new ComponentStartException("Unable to obtain requried configuration property for component");
59	>	}
60		}
61	+
62	+	_logger.write(toString(), Logger.SYSINIT, "configured");
63	+
64	+	// setup the queues, this must be done before both managers are setup
65	+	String queueName;
66	+	// setup a Queue for the servant -> monitor manager
67	+	_monitorQueue = new Queue();
68	+
69	+	// setup a Queue for the monitors -> alert manager
70	+	_alerterQueue = new Queue();
71	+
72	+
73	+
74	+	// setup the servant and connect
75	+	_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
76	+	try {
77	+	ClientServant ref = new ClientServant(_monitorQueue);
78	+	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
79	+	Client client = ClientHelper.narrow(objRef);
80	+
81	+	// this name maybe shouldn't be static
82	+	objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
83	+	CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
84	+
85	+	_logger.write(toString(), Logger.SYSINIT, "connecting");
86	+	CorbaControlHandler handler = listener.connect(client, NAME);
87	+	handler.startData();
88	+	}
89	+	catch(Exception e) {
90	+	// not sure what to do here
91	+	// so we just log the error
92	+	_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
93	+	}
94	+
95	+	// setup the MonitorManager
96	+	MonitorManager monMan = MonitorManager.getInstance();
97	+	monMan.start();
98	+
99	+	// setup the AlerterManager
100	+	AlerterManager alertMan = AlerterManager.getInstance();
101	+	alertMan.start();
102	+
103	+	_logger.write(toString(), Logger.SYSINIT, "started");
104	+
105		}
106	+
107	+	/**
108	+	* Does a dependency check. Used mainly at startup to
109	+	* see if the required dependencies (components) are up
110	+	* and running.
111	+	*
112	+	* @return a boolean value, true if the depdencies are satisfied
113	+	*/
114	+	public boolean depCheck() {
115	+	try {
116	+	org.omg.CORBA.Object obj;
117	+	// first check the ConfigurationManager is alive
118	+	obj = _refman.getCORBARef("iscream.ConfigurationManager");
119	+	// then get some info on the CLI
120	+	ConfigurationProxy cp = ConfigurationProxy.getInstance();
121	+	String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
122	+	// finally check the CLI is alive
123	+	obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
124	+	} catch(ComponentCORBAException e) {
125	+	System.err.println(toString() + ": Dependency Failure: "+e);
126	+	return false;
127	+	} catch(PropertyNotFoundException e) {
128	+	System.err.println(toString() + ": Unable to obtain configuration: "+e);
129	+	return false;
130	+	}
131	+	// dependency check suceeded
132	+	return true;
133	+	}
134	+
135	+	/**
136	+	* Overrides the {@link java.lang.Object#toString() Object.toString()}
137	+	* method to provide clean logging (every class should have this).
138	+	*
139	+	* This uses the uk.ac.ukc.iscream.util.FormatName class
140	+	* to format the toString()
141	+	*
142	+	* @return the name of this class and its CVS revision
143	+	*/
144	+	public String toString() {
145	+	return FormatName.getName(
146	+	NAME,
147	+	getClass().getName(),
148	+	REVISION);
149	+	}
150	+
151	+	//---PRIVATE METHODS---
152	+
153	+	//---ACCESSOR/MUTATOR METHODS---
154	+
155	+	//---ATTRIBUTES---
156	+
157	+	/**
158	+	* This holds a reference to the
159	+	* system logger that is being used.
160	+	*/
161	+	private Logger _logger;
162	+
163	+	/**
164	+	* A reference to the reference manager in use
165	+	*/
166	+	private ReferenceManager _refman = ReferenceManager.getInstance();
167	+
168	+	//---STATIC ATTRIBUTES---
169	+
170	+	/**
171	+	* A queue for the alerter manager
172	+	*/
173	+	public static Queue _alerterQueue;
174	+
175	+	/**
176	+	* A queue for the monitor manager
177	+	*/
178	+	public static Queue _monitorQueue;
179
180		}

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