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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 1.1 by tdb, Sat Feb 3 04:51:50 2001 UTC vs.
Revision 1.12 by tdb, Wed Mar 14 01:34:21 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	<	CorbaHandler handler = lRef.connect("CorbaTest", client);
27	<	result = handler.startData();
28	<	System.out.println(result);
29	<	Thread.sleep(15000);
30	<	result = handler.stopData();
31	<	System.out.println(result);
33	>	//---CONSTRUCTORS---
34
35	<	_refman.getORB().run();
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	+	_refman = ReferenceManager.getInstance();
43	+	_logger = ReferenceManager.getInstance().getLogger();
44	+
45	+	_logger.write(toString(), Logger.SYSINIT, "coming up");
46	+
47	+	// configuration variables we require
48	+	int queueMonitorInterval = 0;
49	+
50	+	Configuration config = _refman.getCM().getConfiguration("LocalClient");
51	+	if (config == null) {
52	+	throw new ComponentStartException("Unable to obtain configuration for component");
53		}
54	<	catch (Exception e) {
55	<	System.out.println("ERROR : " + e);
56	<	e.printStackTrace(System.out);
54	>	else {
55	>	try {
56	>	// get the configuration properties we need
57	>	queueMonitorInterval = Integer.parseInt(config.getProperty("Queue.MonitorInterval"));
58	>	} catch (org.omg.CORBA.MARSHAL e) {
59	>	throw new ComponentStartException("Unable to obtain requried configuration property for component");
60	>	}
61		}
62	+
63	+	_logger.write(toString(), Logger.SYSINIT, "configured");
64	+
65	+	// setup the queues, this must be done before both managers are setup
66	+	String queueName;
67	+	// setup a Queue for the servant -> monitor manager
68	+	_monitorQueue = new Queue();
69	+
70	+	// setup a Queue for the monitors -> alert manager
71	+	_alerterQueue = new Queue();
72	+
73	+
74	+
75	+	// setup the servant and connect
76	+	_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
77	+	try {
78	+	ClientServant ref = new ClientServant(_monitorQueue);
79	+	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
80	+	Client client = ClientHelper.narrow(objRef);
81	+
82	+	// this name maybe shouldn't be static
83	+	objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
84	+	CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
85	+
86	+	_logger.write(toString(), Logger.SYSINIT, "connecting");
87	+	CorbaControlHandler handler = listener.connect(client, NAME);
88	+	handler.startData();
89	+	}
90	+	catch(Exception e) {
91	+	// not sure what to do here
92	+	// so we just log the error
93	+	_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
94	+	}
95	+
96	+	// setup the MonitorManager
97	+	MonitorManager monMan = MonitorManager.getInstance();
98	+	monMan.start();
99	+
100	+	// setup the AlerterManager
101	+	AlerterManager alertMan = AlerterManager.getInstance();
102	+	alertMan.start();
103	+
104	+	_logger.write(toString(), Logger.SYSINIT, "started");
105	+
106		}
107	+
108	+	/**
109	+	* Does a dependency check. Used mainly at startup to
110	+	* see if the required dependencies (components) are up
111	+	* and running.
112	+	*
113	+	* @return a boolean value, true if the depdencies are satisfied
114	+	*/
115	+	public boolean depCheck() {
116	+	try {
117	+	org.omg.CORBA.Object obj;
118	+	// first check the ConfigurationManager is alive
119	+	obj = _refman.getCORBARef("iscream.ConfigurationManager");
120	+	// then get some info on the CLI
121	+	ConfigurationProxy cp = ConfigurationProxy.getInstance();
122	+	String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
123	+	// finally check the CLI is alive
124	+	obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
125	+	} catch(ComponentCORBAException e) {
126	+	_logger.write(toString(), Logger.WARNING, "Dependency Failure: "+e);
127	+	return false;
128	+	} catch(PropertyNotFoundException e) {
129	+	_logger.write(toString(), Logger.WARNING, "Unable to obtain configuration: "+e);
130	+	return false;
131	+	}
132	+	// dependency check suceeded
133	+	return true;
134	+	}
135	+
136	+	/**
137	+	* Overrides the {@link java.lang.Object#toString() Object.toString()}
138	+	* method to provide clean logging (every class should have this).
139	+	*
140	+	* This uses the uk.ac.ukc.iscream.util.FormatName class
141	+	* to format the toString()
142	+	*
143	+	* @return the name of this class and its CVS revision
144	+	*/
145	+	public String toString() {
146	+	return FormatName.getName(
147	+	NAME,
148	+	getClass().getName(),
149	+	REVISION);
150	+	}
151	+
152	+	//---PRIVATE METHODS---
153	+
154	+	//---ACCESSOR/MUTATOR METHODS---
155	+
156	+	//---ATTRIBUTES---
157	+
158	+	/**
159	+	* This holds a reference to the
160	+	* system logger that is being used.
161	+	*/
162	+	private Logger _logger;
163	+
164	+	/**
165	+	* A reference to the reference manager in use
166	+	*/
167	+	private ReferenceManager _refman;
168	+
169	+	//---STATIC ATTRIBUTES---
170	+
171	+	/**
172	+	* A queue for the alerter manager
173	+	*/
174	+	public static Queue _alerterQueue;
175	+
176	+	/**
177	+	* A queue for the monitor manager
178	+	*/
179	+	public static Queue _monitorQueue;
180
181		}

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