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  $Author$
 * @version $Id$
 */
public class ClientMain implements Component {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.1 $";
    
    /**
     * 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 {

        _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 servant
        _logger.write(toString(), Logger.SYSINIT, "starting servant");           
        
        Client client;
        
        try {
            ClientServant ref = new ClientServant();
            org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
            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());
        }
        
        _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 = ReferenceManager.getInstance().getLogger();

    /**
     * A reference to the reference manager in use
     */
    private ReferenceManager _refman = ReferenceManager.getInstance();

//---STATIC ATTRIBUTES---

}
Revision:	1.5
Committed:	Wed Feb 21 22:48:20 2001 UTC (23 years, 2 months ago) by tdb
Branch:	MAIN
Changes since 1.4:	+115 -35 lines
Log Message:	Removed all the debugging and testing stuff that I originally wrote. This is now along the lines of the new structure, although it will need a lot more work :)
#	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			* @author $Author$
14			* @version $Id$
15			*/
16			public class ClientMain implements Component {
17
18			//---FINAL ATTRIBUTES---
19
20			/**
21			* The current CVS revision of this class
22			*/
23			public static final String REVISION = "$Revision: 1.1 $";
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			//---CONSTRUCTORS---
34
35			//---PUBLIC METHODS---
36
37			/**
38			* This starts the Local Client component
39			*/
40			public void start() throws ComponentStartException {
41
42			_logger.write(toString(), Logger.SYSINIT, "coming up");
43
44			// configuration variables we require
45			int queueMonitorInterval = 0;
46
47			Configuration config = _refman.getCM().getConfiguration("LocalClient");
48			if (config == null) {
49			throw new ComponentStartException("Unable to obtain configuration for component");
50			}
51			else {
52			try {
53			// get the configuration properties we need
54			queueMonitorInterval = Integer.parseInt(config.getProperty("Queue.MonitorInterval"));
55			} catch (org.omg.CORBA.MARSHAL e) {
56			throw new ComponentStartException("Unable to obtain requried configuration property for component");
57			}
58			}
59
60			_logger.write(toString(), Logger.SYSINIT, "configured");
61
62			// setup the servant
63			_logger.write(toString(), Logger.SYSINIT, "starting servant");
64
65			Client client;
66
67	tdb	1.1	try {
68	tdb	1.5	ClientServant ref = new ClientServant();
69			org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
70			client = ClientHelper.narrow(objRef);
71
72			// this name maybe shouldn't be static
73			objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
74			CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
75
76			_logger.write(toString(), Logger.SYSINIT, "connecting");
77			CorbaControlHandler handler = listener.connect(client);
78			handler.startData();
79	tdb	1.1	}
80	tdb	1.5	catch(Exception e) {
81			// not sure what to do here
82			// so we just log the error
83			_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
84	tdb	1.1	}
85	tdb	1.5
86			_logger.write(toString(), Logger.SYSINIT, "started");
87
88			}
89
90			/**
91			* Overrides the {@link java.lang.Object#toString() Object.toString()}
92			* method to provide clean logging (every class should have this).
93			*
94			* This uses the uk.ac.ukc.iscream.util.FormatName class
95			* to format the toString()
96			*
97			* @return the name of this class and its CVS revision
98			*/
99			public String toString() {
100			return FormatName.getName(
101			NAME,
102			getClass().getName(),
103			REVISION);
104	tdb	1.1	}
105	tdb	1.5
106			//---PRIVATE METHODS---
107
108			//---ACCESSOR/MUTATOR METHODS---
109
110			//---ATTRIBUTES---
111
112			/**
113			* This holds a reference to the
114			* system logger that is being used.
115			*/
116			private Logger _logger = ReferenceManager.getInstance().getLogger();
117
118			/**
119			* A reference to the reference manager in use
120			*/
121			private ReferenceManager _refman = ReferenceManager.getInstance();
122
123			//---STATIC ATTRIBUTES---
124	tdb	1.1
125			}