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 1.10 2001/03/02 02:47:16 tdb1 Exp $
 */
public class ClientMain implements Component {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.10 $";
    
    /**
     * 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();
        
        // setup a Queue for the monitors -> alert manager
        _alerterQueue = new Queue();
        
        
        
        // 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:	1.11
Committed:	Fri Mar 2 05:42:39 2001 UTC (23 years, 3 months ago) by ajm
Branch:	MAIN
Changes since 1.10:	+3 -5 lines
Log Message:	minor update - hey, I'm fussy ;p
#	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	ajm	1.11	* @author $Author: tdb1 $
14			* @version $Id: ClientMain.java,v 1.10 2001/03/02 02:47:16 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	1.11	public static final String REVISION = "$Revision: 1.10 $";
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
70	tdb	1.10	// setup a Queue for the monitors -> alert manager
71	ajm	1.9	_alerterQueue = new Queue();
72
73
74	tdb	1.5
75	tdb	1.7	// setup the servant and connect
76			_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
77	tdb	1.1	try {
78	ajm	1.9	ClientServant ref = new ClientServant(_monitorQueue);
79	tdb	1.5	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
80	tdb	1.7	Client client = ClientHelper.narrow(objRef);
81	tdb	1.5
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	tdb	1.8	CorbaControlHandler handler = listener.connect(client, NAME);
88	tdb	1.5	handler.startData();
89	tdb	1.1	}
90	tdb	1.5	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	tdb	1.1	}
95	tdb	1.7
96			// setup the MonitorManager
97	ajm	1.9	MonitorManager monMan = MonitorManager.getInstance();
98			monMan.start();
99
100			// setup the AlerterManager
101			AlerterManager alertMan = AlerterManager.getInstance();
102			alertMan.start();
103
104	tdb	1.5	_logger.write(toString(), Logger.SYSINIT, "started");
105
106			}
107
108			/**
109			* Overrides the {@link java.lang.Object#toString() Object.toString()}
110			* method to provide clean logging (every class should have this).
111			*
112			* This uses the uk.ac.ukc.iscream.util.FormatName class
113			* to format the toString()
114			*
115			* @return the name of this class and its CVS revision
116			*/
117			public String toString() {
118			return FormatName.getName(
119			NAME,
120			getClass().getName(),
121			REVISION);
122	tdb	1.1	}
123	tdb	1.5
124			//---PRIVATE METHODS---
125
126			//---ACCESSOR/MUTATOR METHODS---
127
128			//---ATTRIBUTES---
129
130			/**
131			* This holds a reference to the
132			* system logger that is being used.
133			*/
134	tdb	1.6	private Logger _logger;
135	tdb	1.5
136			/**
137			* A reference to the reference manager in use
138			*/
139	tdb	1.6	private ReferenceManager _refman;
140	tdb	1.5
141			//---STATIC ATTRIBUTES---
142	ajm	1.9
143			/**
144			* A queue for the alerter manager
145			*/
146			public static Queue _alerterQueue;
147
148			/**
149			* A queue for the monitor manager
150			*/
151			public static Queue _monitorQueue;
152	tdb	1.1
153			}