server/client/ClientMain.java

//---PACKAGE DECLARATION---
package uk.ac.ukc.iscream.client;

//---IMPORTS---
import uk.ac.ukc.iscream.clientinterface.*;
import uk.ac.ukc.iscream.componentmanager.*;
import uk.ac.ukc.iscream.core.*;
import uk.ac.ukc.iscream.util.*;

/**
 * A startup component for the Local Clients.
 *
 * @author  $Author: tdb1 $
 * @version $Id: ClientMain.java,v 1.8 2001/02/28 19:02:58 tdb1 Exp $
 */
public class ClientMain implements Component {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.8 $";
    
    /**
     * The friendly name for this component, used by
     * all related classes.
     */
    public static final String NAME = "LocalClient";
    
//---STATIC METHODS---

//---CONSTRUCTORS---

//---PUBLIC METHODS---

    /**
     * This starts the Local Client component
     */
    public void start() throws ComponentStartException {
        // get references to key objects
        _refman = ReferenceManager.getInstance();
        _logger = ReferenceManager.getInstance().getLogger();

        _logger.write(toString(), Logger.SYSINIT, "coming up");
            
        // configuration variables we require
        int queueMonitorInterval = 0;
        
        Configuration config = _refman.getCM().getConfiguration("LocalClient");
        if (config == null) {
            throw new ComponentStartException("Unable to obtain configuration for component");
        }
        else {
            try {
                // get the configuration properties we need
                queueMonitorInterval = Integer.parseInt(config.getProperty("Queue.MonitorInterval"));
            } catch (org.omg.CORBA.MARSHAL e) {
                throw new ComponentStartException("Unable to obtain requried configuration property for component");
            }
        }
               
        _logger.write(toString(), Logger.SYSINIT, "configured");
        
        // setup the queues, this must be done before both managers are setup
        String queueName;
        // setup a Queue for the servant -> monitor manager
        _monitorQueue = new Queue();
        // startup a monitor on this queue
        queueName = NAME + " MonitorManager";
        _monitorQueue.startMonitor(queueMonitorInterval*1000, queueName);
        
         // setup a Queue for the monitors -> alert manager
        _alerterQueue = new Queue();
        // startup a monitor on this queue
       queueName = NAME + " MonitorManager";
        _alerterQueue.startMonitor(queueMonitorInterval*1000, queueName);
        
        
        
        // setup the servant and connect
        _logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");           
        try {
            ClientServant ref = new ClientServant(_monitorQueue);
            org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
            Client client = ClientHelper.narrow(objRef);
            
            // this name maybe shouldn't be static
            objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
            CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
            
            _logger.write(toString(), Logger.SYSINIT, "connecting");
            CorbaControlHandler handler = listener.connect(client, NAME);
            handler.startData();
        }
        catch(Exception e) {
            // not sure what to do here
            // so we just log the error
            _logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
        }
        
        // setup the MonitorManager
        MonitorManager monMan = MonitorManager.getInstance();
        monMan.start();
        
        // setup the AlerterManager
       
        
        AlerterManager alertMan = AlerterManager.getInstance();
        alertMan.start();
       
        _logger.write(toString(), Logger.SYSINIT, "started");
        
    }

    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * This uses the uk.ac.ukc.iscream.util.FormatName class
     * to format the toString()
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return FormatName.getName(
            NAME,
            getClass().getName(),
            REVISION);
    }

//---PRIVATE METHODS---

//---ACCESSOR/MUTATOR METHODS---

//---ATTRIBUTES---

    /**
     * This holds a reference to the
     * system logger that is being used.
     */
    private Logger _logger;

    /**
     * A reference to the reference manager in use
     */
    private ReferenceManager _refman;

//---STATIC ATTRIBUTES---

    /**
     * A queue for the alerter manager
     */
    public static Queue _alerterQueue;
    
    /**
     * A queue for the monitor manager
     */
    public static Queue _monitorQueue;

}
Revision:	1.9
Committed:	Fri Mar 2 00:15:59 2001 UTC (23 years, 2 months ago) by ajm
Branch:	MAIN
Changes since 1.8:	+34 -7 lines
Log Message:	Makefile now compiles the alerter manager. MonitorManager is now fleshed out. ClientMain is now fleshed out.
#	User	Rev	Content
1	tdb	1.5	//---PACKAGE DECLARATION---
2	tdb	1.1	package uk.ac.ukc.iscream.client;
3
4	tdb	1.5	//---IMPORTS---
5	tdb	1.1	import uk.ac.ukc.iscream.clientinterface.*;
6			import uk.ac.ukc.iscream.componentmanager.*;
7	tdb	1.5	import uk.ac.ukc.iscream.core.*;
8			import uk.ac.ukc.iscream.util.*;
9
10			/**
11			* A startup component for the Local Clients.
12			*
13	tdb	1.6	* @author $Author: tdb1 $
14	ajm	1.9	* @version $Id: ClientMain.java,v 1.8 2001/02/28 19:02:58 tdb1 Exp $
15	tdb	1.5	*/
16			public class ClientMain implements Component {
17
18			//---FINAL ATTRIBUTES---
19
20			/**
21			* The current CVS revision of this class
22			*/
23	ajm	1.9	public static final String REVISION = "$Revision: 1.8 $";
24	tdb	1.5
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			//---CONSTRUCTORS---
34
35			//---PUBLIC METHODS---
36
37			/**
38			* This starts the Local Client component
39			*/
40			public void start() throws ComponentStartException {
41	tdb	1.6	// get references to key objects
42			_refman = ReferenceManager.getInstance();
43			_logger = ReferenceManager.getInstance().getLogger();
44	tdb	1.5
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			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	ajm	1.9	// setup the queues, this must be done before both managers are setup
66			String queueName;
67	tdb	1.7	// setup a Queue for the servant -> monitor manager
68	ajm	1.9	_monitorQueue = new Queue();
69	tdb	1.7	// startup a monitor on this queue
70	ajm	1.9	queueName = NAME + " MonitorManager";
71			_monitorQueue.startMonitor(queueMonitorInterval*1000, queueName);
72
73			// setup a Queue for the monitors -> alert manager
74			_alerterQueue = new Queue();
75			// startup a monitor on this queue
76			queueName = NAME + " MonitorManager";
77			_alerterQueue.startMonitor(queueMonitorInterval*1000, queueName);
78
79
80	tdb	1.5
81	tdb	1.7	// setup the servant and connect
82			_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
83	tdb	1.1	try {
84	ajm	1.9	ClientServant ref = new ClientServant(_monitorQueue);
85	tdb	1.5	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
86	tdb	1.7	Client client = ClientHelper.narrow(objRef);
87	tdb	1.5
88			// this name maybe shouldn't be static
89			objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
90			CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
91
92			_logger.write(toString(), Logger.SYSINIT, "connecting");
93	tdb	1.8	CorbaControlHandler handler = listener.connect(client, NAME);
94	tdb	1.5	handler.startData();
95	tdb	1.1	}
96	tdb	1.5	catch(Exception e) {
97			// not sure what to do here
98			// so we just log the error
99			_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
100	tdb	1.1	}
101	tdb	1.7
102			// setup the MonitorManager
103	ajm	1.9	MonitorManager monMan = MonitorManager.getInstance();
104			monMan.start();
105
106			// setup the AlerterManager
107
108	tdb	1.5
109	ajm	1.9	AlerterManager alertMan = AlerterManager.getInstance();
110			alertMan.start();
111
112	tdb	1.5	_logger.write(toString(), Logger.SYSINIT, "started");
113
114			}
115
116			/**
117			* Overrides the {@link java.lang.Object#toString() Object.toString()}
118			* method to provide clean logging (every class should have this).
119			*
120			* This uses the uk.ac.ukc.iscream.util.FormatName class
121			* to format the toString()
122			*
123			* @return the name of this class and its CVS revision
124			*/
125			public String toString() {
126			return FormatName.getName(
127			NAME,
128			getClass().getName(),
129			REVISION);
130	tdb	1.1	}
131	tdb	1.5
132			//---PRIVATE METHODS---
133
134			//---ACCESSOR/MUTATOR METHODS---
135
136			//---ATTRIBUTES---
137
138			/**
139			* This holds a reference to the
140			* system logger that is being used.
141			*/
142	tdb	1.6	private Logger _logger;
143	tdb	1.5
144			/**
145			* A reference to the reference manager in use
146			*/
147	tdb	1.6	private ReferenceManager _refman;
148	tdb	1.5
149			//---STATIC ATTRIBUTES---
150	ajm	1.9
151			/**
152			* A queue for the alerter manager
153			*/
154			public static Queue _alerterQueue;
155
156			/**
157			* A queue for the monitor manager
158			*/
159			public static Queue _monitorQueue;
160	tdb	1.1
161			}