server/client/ClientMain.java

//---PACKAGE DECLARATION---
package uk.org.iscream.client;

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

/**
 * A startup component for the Local Clients.
 *
 * @author  $Author: tdb1 $
 * @version $Id: ClientMain.java,v 1.15 2001/03/14 23:25:29 tdb1 Exp $
 */
public class ClientMain implements Component {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.15 $";
    
    /**
     * 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
        _logger = _refman.getLogger();

        _logger.write(toString(), Logger.SYSINIT, "coming up");
        
        // setup the queues, this must be done before both managers are setup
        // 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");
        
    }
    
    /**
     * Does a dependency check. Used mainly at startup to
     * see if the required dependencies (components) are up
     * and running.
     *
     * @return a boolean value, true if the depdencies are satisfied
     */
    public boolean depCheck() {
        try {
            org.omg.CORBA.Object obj;
            // first check the ConfigurationManager is alive
            obj = _refman.getCORBARef("iscream.ConfigurationManager");
            // then get some info on the CLI
            ConfigurationProxy cp = ConfigurationProxy.getInstance();
            String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
            // finally check the CLI is alive
            obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
        } catch(ComponentCORBAException e) {
            System.err.println(toString() + ": Dependency Failure: "+e);
            return false;
        } catch(PropertyNotFoundException e) {
            System.err.println(toString() + ": Unable to obtain configuration: "+e);
            return false;
        }
        // dependency check suceeded
        return true;
    }
    
    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * This uses the uk.org.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 = ReferenceManager.getInstance();

//---STATIC ATTRIBUTES---

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

}
Revision:	1.16
Committed:	Thu Mar 15 22:12:22 2001 UTC (23 years, 2 months ago) by tdb
Branch:	MAIN
Changes since 1.15:	+2 -24 lines
Log Message:	Seems I missed updating the configuration sections in these files.
#	User	Rev	Content
1	tdb	1.5	//---PACKAGE DECLARATION---
2	tdb	1.15	package uk.org.iscream.client;
3	tdb	1.1
4	tdb	1.5	//---IMPORTS---
5	tdb	1.15	import uk.org.iscream.clientinterface.*;
6			import uk.org.iscream.componentmanager.*;
7			import uk.org.iscream.core.*;
8			import uk.org.iscream.util.*;
9	tdb	1.5
10			/**
11			* A startup component for the Local Clients.
12			*
13	tdb	1.13	* @author $Author: tdb1 $
14	tdb	1.16	* @version $Id: ClientMain.java,v 1.15 2001/03/14 23:25:29 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	1.16	public static final String REVISION = "$Revision: 1.15 $";
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	tdb	1.13	_logger = _refman.getLogger();
43	tdb	1.5
44			_logger.write(toString(), Logger.SYSINIT, "coming up");
45
46	ajm	1.9	// setup the queues, this must be done before both managers are setup
47	tdb	1.7	// setup a Queue for the servant -> monitor manager
48	ajm	1.9	_monitorQueue = new Queue();
49	tdb	1.10	// setup a Queue for the monitors -> alert manager
50	ajm	1.9	_alerterQueue = new Queue();
51	tdb	1.5
52	tdb	1.7	// setup the servant and connect
53			_logger.write(toString(), Logger.SYSINIT, "starting servant and connecting");
54	tdb	1.1	try {
55	ajm	1.9	ClientServant ref = new ClientServant(_monitorQueue);
56	tdb	1.5	org.omg.CORBA.Object objRef = _refman.getRootPOA().servant_to_reference(ref);
57	tdb	1.7	Client client = ClientHelper.narrow(objRef);
58	tdb	1.5
59			// this name maybe shouldn't be static
60			objRef = _refman.getCORBARef("iscream.ClientInterface.CorbaListener");
61			CorbaClientListener listener = CorbaClientListenerHelper.narrow(objRef);
62
63			_logger.write(toString(), Logger.SYSINIT, "connecting");
64	tdb	1.8	CorbaControlHandler handler = listener.connect(client, NAME);
65	tdb	1.5	handler.startData();
66	tdb	1.1	}
67	tdb	1.5	catch(Exception e) {
68			// not sure what to do here
69			// so we just log the error
70			_logger.write(toString(), Logger.ERROR, "ERROR - " + e.getMessage());
71	tdb	1.1	}
72	tdb	1.7
73			// setup the MonitorManager
74	ajm	1.9	MonitorManager monMan = MonitorManager.getInstance();
75			monMan.start();
76
77			// setup the AlerterManager
78			AlerterManager alertMan = AlerterManager.getInstance();
79			alertMan.start();
80
81	tdb	1.5	_logger.write(toString(), Logger.SYSINIT, "started");
82
83			}
84	tdb	1.12
85			/**
86			* Does a dependency check. Used mainly at startup to
87			* see if the required dependencies (components) are up
88			* and running.
89			*
90			* @return a boolean value, true if the depdencies are satisfied
91			*/
92			public boolean depCheck() {
93			try {
94			org.omg.CORBA.Object obj;
95			// first check the ConfigurationManager is alive
96			obj = _refman.getCORBARef("iscream.ConfigurationManager");
97			// then get some info on the CLI
98			ConfigurationProxy cp = ConfigurationProxy.getInstance();
99			String cli = cp.getProperty("RootFilter", "RootFilter.realtimeInterfaceName");
100			// finally check the CLI is alive
101			obj = _refman.getCORBARef("iscream.ClientInterface." + cli);
102			} catch(ComponentCORBAException e) {
103	tdb	1.14	System.err.println(toString() + ": Dependency Failure: "+e);
104	tdb	1.12	return false;
105			} catch(PropertyNotFoundException e) {
106	tdb	1.14	System.err.println(toString() + ": Unable to obtain configuration: "+e);
107	tdb	1.12	return false;
108			}
109			// dependency check suceeded
110			return true;
111			}
112
113	tdb	1.5	/**
114			* Overrides the {@link java.lang.Object#toString() Object.toString()}
115			* method to provide clean logging (every class should have this).
116			*
117	tdb	1.15	* This uses the uk.org.iscream.util.FormatName class
118	tdb	1.5	* to format the toString()
119			*
120			* @return the name of this class and its CVS revision
121			*/
122			public String toString() {
123			return FormatName.getName(
124			NAME,
125			getClass().getName(),
126			REVISION);
127	tdb	1.1	}
128	tdb	1.5
129			//---PRIVATE METHODS---
130
131			//---ACCESSOR/MUTATOR METHODS---
132
133			//---ATTRIBUTES---
134
135			/**
136			* This holds a reference to the
137			* system logger that is being used.
138			*/
139	tdb	1.6	private Logger _logger;
140	tdb	1.5
141			/**
142			* A reference to the reference manager in use
143			*/
144	tdb	1.13	private ReferenceManager _refman = ReferenceManager.getInstance();
145	tdb	1.5
146			//---STATIC ATTRIBUTES---
147	ajm	1.9
148			/**
149			* A queue for the alerter manager
150			*/
151			public static Queue _alerterQueue;
152
153			/**
154			* A queue for the monitor manager
155			*/
156			public static Queue _monitorQueue;
157	tdb	1.1
158			}