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 1.6 2001/02/25 22:22:16 tdb1 Exp $
 */
public class ClientMain implements Component {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.6 $";
    
    /**
     * 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 a Queue for the servant -> monitor manager
        Queue queue = new Queue();
        // startup a monitor on this queue
        String queueName = NAME + " ServantToMonMan";
        queue.startMonitor(queueMonitorInterval*1000, queueName);
        
        // setup the servant and connect
        _logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");           
        try {
            ClientServant ref = new ClientServant(queue);
            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);
            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 = new MonitorManager(queue);
        
        _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---

}
Revision:	1.7
Committed:	Tue Feb 27 01:01:33 2001 UTC (23 years, 2 months ago) by tdb
Branch:	MAIN
Changes since 1.6:	+14 -8 lines
Log Message:	Now constructs the MonitorManager, and sets up a Queue for linking the Servant with the MonitorManager.
#	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	tdb	1.7	* @version $Id: ClientMain.java,v 1.6 2001/02/25 22:22:16 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	tdb	1.7	public static final String REVISION = "$Revision: 1.6 $";
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	tdb	1.7	// setup a Queue for the servant -> monitor manager
66			Queue queue = new Queue();
67			// startup a monitor on this queue
68			String queueName = NAME + " ServantToMonMan";
69			queue.startMonitor(queueMonitorInterval*1000, queueName);
70	tdb	1.5
71	tdb	1.7	// setup the servant and connect
72			_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
73	tdb	1.1	try {
74	tdb	1.7	ClientServant ref = new ClientServant(queue);
75	tdb	1.5	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
76	tdb	1.7	Client client = ClientHelper.narrow(objRef);
77	tdb	1.5
78			// this name maybe shouldn't be static
79			objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
80			CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
81
82			_logger.write(toString(), Logger.SYSINIT, "connecting");
83			CorbaControlHandler handler = listener.connect(client);
84			handler.startData();
85	tdb	1.1	}
86	tdb	1.5	catch(Exception e) {
87			// not sure what to do here
88			// so we just log the error
89			_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
90	tdb	1.1	}
91	tdb	1.7
92			// setup the MonitorManager
93			MonitorManager monMan = new MonitorManager(queue);
94	tdb	1.5
95			_logger.write(toString(), Logger.SYSINIT, "started");
96
97			}
98
99			/**
100			* Overrides the {@link java.lang.Object#toString() Object.toString()}
101			* method to provide clean logging (every class should have this).
102			*
103			* This uses the uk.ac.ukc.iscream.util.FormatName class
104			* to format the toString()
105			*
106			* @return the name of this class and its CVS revision
107			*/
108			public String toString() {
109			return FormatName.getName(
110			NAME,
111			getClass().getName(),
112			REVISION);
113	tdb	1.1	}
114	tdb	1.5
115			//---PRIVATE METHODS---
116
117			//---ACCESSOR/MUTATOR METHODS---
118
119			//---ATTRIBUTES---
120
121			/**
122			* This holds a reference to the
123			* system logger that is being used.
124			*/
125	tdb	1.6	private Logger _logger;
126	tdb	1.5
127			/**
128			* A reference to the reference manager in use
129			*/
130	tdb	1.6	private ReferenceManager _refman;
131	tdb	1.5
132			//---STATIC ATTRIBUTES---
133	tdb	1.1
134			}