server/componentmanager/ComponentManager.java

/* 
 * i-scream central monitoring system
 * http://www.i-scream.org.uk
 * Copyright (C) 2000-2002 i-scream
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

//---PACKAGE DECLARATION---
package uk.org.iscream.cms.server.componentmanager;

//---IMPORTS---
import java.util.*;
import java.io.*;
import uk.org.iscream.cms.util.*;

/**
 * The component manager is the starting point for all
 * server side components of the iscream system.
 * It loads its initial system configuration from the
 * default properties file, it then starts all the iscream
 * components as specified in the default.properties under
 * uk.org.iscream.cms.server.ComponentList
 *
 * @author  $Author: tdb $
 * @version $Id: ComponentManager.java,v 1.42 2003/02/05 16:43:46 tdb Exp $
 */
public class ComponentManager {

//---FINAL ATTRIBUTES---

    /**
     * The current CVS revision of this class
     */
    public static final String REVISION = "$Revision: 1.42 $";
    
    /**
     * The toString() of this class
     * As it won't be instatiated, this is needed.
     * Not also that we pass a null as the class name (as we are static)
     */
    public static final String toString = FormatName.getName("ComponentManager", null, REVISION);
    
    /**
     * The default location of the properties file for the system
     */
    public static final String DEFAULTPROPERTIES = "./etc/default.properties";
    
    /**
     * The default time to wait before retrying
     * component.
     */
    public static final int DEFAULT_COMPONENT_START_TIMEOUT = 5;
    
//---STATIC METHODS---

    /**
     * The main method which starts the components as
     * listed in the default.properties file.
     *
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("-----------------------------------------");
        System.out.println("--- i-scream Server Component Manager ---");
        System.out.println("---   (c) 2001 The i-scream Project   ---");
        System.out.println("---    (http://www.i-scream.org.uk)   ---");
        System.out.println("-----------------------------------------");
        System.out.println("---          Starting System          ---");
        
        // get the command line args
        String defaultProperties = DEFAULTPROPERTIES;
        String filterName = null;
        String filterManagerName = null;
        String clientInterfaceName = null;
        for(int i=0; i < args.length; i++) {
            if(args[i].equals("-h")) {
                usage();
            }
            else if(args[i].equals("-f")) {
                if(++i < args.length) {
                    filterName = args[i];
                }
                else {
                    usage();
                }
            }
            else if(args[i].equals("-fm")) {
                if(++i < args.length) {
                    filterManagerName = args[i];
                }
                else {
                    usage();
                }
            }
            else if(args[i].equals("-ci")) {
                if(++i < args.length) {
                    clientInterfaceName = args[i];
                }
                else {
                    usage();
                }
            }
            else if(args[i].equals("-l")) {
                if(++i < args.length) {
                    defaultProperties = args[i];
                }
                else {
                    usage();
                }
            }
            else {
                usage();
            }
        }

        // load the default properties file into the system properties
        System.out.println(toString + ": initialising - using " + defaultProperties);
        try {
            Properties initProperties = new Properties(System.getProperties());
            initProperties.load(new FileInputStream(new File(defaultProperties)));
            System.setProperties(initProperties);
        } catch (Exception e) {
            System.err.println(toString + ": ERROR " + e.getMessage());
            usage();
        }

        // continue to bring the system up
        System.out.println(toString + ": coming up");
        
        // start the ORB by initialising the ReferenceManager
        ReferenceManager refman = ReferenceManager.getInstance();
        
        // now the ORB is running, we need to activate our RootPOA
        // so that we can start serving requests once servants start up
        refman.activatePOA();
        
        // get the list of components
        String componentList = System.getProperty("uk.org.iscream.cms.server.ComponentList");
        StringTokenizer st = new StringTokenizer(componentList, ";");
        _componentsToStart = new LinkedList();
        
        // this could be done using reflection
        // but..well..we don't ;-p
        while (st.hasMoreTokens()){
            String componentName = st.nextToken();
            Component component = null;
            
            
            // ### This is where the list of supported components is checked! ###
            if (componentName.equalsIgnoreCase("core")) {
                component = new uk.org.iscream.cms.server.core.Core();
            // note the passing of the FilterManagers's name in its constructor
            } else if (componentName.equalsIgnoreCase("filtermanager")) {
                component = new uk.org.iscream.cms.server.filtermanager.FilterManager(filterManagerName);
            } else if (componentName.equalsIgnoreCase("rootfilter")) {
                component = new uk.org.iscream.cms.server.rootfilter.RootFilter();
            } else if (componentName.equalsIgnoreCase("clientinterface")) {
                component = new uk.org.iscream.cms.server.clientinterface.ClientInterfaceMain(clientInterfaceName);
            // note the passing of the Filter's name in its constructor
            } else if (componentName.equalsIgnoreCase("filter")) {
                component = new uk.org.iscream.cms.server.filter.FilterMain(filterName);
            } else if (componentName.equalsIgnoreCase("client")) {
                component = new uk.org.iscream.cms.server.client.ClientMain();
            }
            // ###  Add new component constructors in the above section! ###
            
            // build the list of components to start
            if (component != null) {
                _componentsToStart.add(component);
            } else {
                System.err.println(toString + ": WARNING unsupported component not started: "+componentName);
            }
        }
        
        

        // get the value for timeout
        
        String confTimeout = null;
        try {
            confTimeout = System.getProperty("uk.org.iscream.cms.server.ComponentTimeout");
            confTimeout.trim();
            _startTimeout = Integer.parseInt(confTimeout);
        } catch (NumberFormatException e) {
            _startTimeout = DEFAULT_COMPONENT_START_TIMEOUT;
            System.err.println(toString + ": unable to read uk.org.iscream.cms.server.ComponentTimeout value (" + confTimeout + "), using default!");
        }
        System.out.println(toString + ": using component start timeout of " + _startTimeout + " seconds");
        
        // startup the system components
        startUp();

        // block on the ORB...in time, management functionality can be placed here.
        // if we detect a CORBA communication error, we'll restart all the components.
        // !! this doesn't appear to work !!
        while(true) {
            try {
                refman.getORB().run();
            } catch (org.omg.CORBA.COMM_FAILURE e) {
                System.out.println(toString + ": WARNING CORBA communications failure - " + e.getMessage());
                System.out.println(toString + ": WARNING CORBA connections have been lost - attempting to restart!");
            }
            startUp();
        }
    }

    /**
     * Starts the components as obtained from the configuration.
     * This method calls the start() methods on all the components.
     * If a component fails to start due to a CORBA communication
     * problem, then it catches this and tries to start it again
     * according to uk.org.iscream.cms.server.ComponentTimeout time.
     *
     * If the server dies and CORBA connections are lost, this method
     * is called again.
     */
    private static void startUp() {
        // now we try and start the beast up
        boolean tryAgain = true;
        Component component = null;
        
        // keep trying until we've started all the components.
        // maybe add support for a limited number of retries
        while(tryAgain) {
            Iterator i = _componentsToStart.iterator();
            LinkedList failedComponents = new LinkedList();
            // go through all the components
            while(i.hasNext()) {
                // get a refence to the component
                component = (Component) i.next();
                System.out.println(toString + ": dependency checking component - " + component.toString());
                
                // check it's dependencies
                boolean depOK = component.depCheck();
                if(depOK) {
                    System.out.println(toString + ": starting component - " + component.toString());
                    // it should be ok to start the component
                    try {    
                        // start the component
                        component.start();
                    } catch (ComponentStartException e) {
                        // if we get this then there was a problem
                        // that we can't recover from
                        System.err.println(toString + ": ERROR starting component - " + component.toString());
                        System.err.println(toString + ": component reports - " + e.getMessage());
                        System.exit(1);
                    }
                }
                else {
                    // it seems the depedencies failed
                    // so we want to try again after a delay
                    System.err.println(toString + ": WARNING Component reported dependency failure");
                    System.err.println(toString + ": This could be because it can't communicate with components it needs.");
                    
                    // make a list of the failed components
                    failedComponents.add(component);
                }
            }
            
            // if we had some failed components that we can retry
            if (failedComponents.size() > 0) {
                System.err.println(toString + ": WARNING One or more components failed to start correctly.");
                System.err.println(toString + ": Will try again in " + _startTimeout + " seconds");
            
                // our list is now the failed list
                _componentsToStart = failedComponents;
                
                // sleep for a given timeout
                try {
                    Thread.sleep(_startTimeout * 1000);
                } catch (InterruptedException e) {
                    // we're not bothered
                }
            // otherwise we started everything
            } else {
                // so we set to exit the loop
                tryAgain = false;
            }
        }
        
        System.out.println(toString + ": running");
    }

    /**
     * A simple method to print the usage of this class.
     * It never returns, but instead exits to the system
     * with a value 1, to indicate the system did not start
     * properly.
     */
    public static void usage() {
        System.out.println("USAGE: java uk.org.iscream.cms.server.componentmanager.ComponentManager <option>");
        System.out.println("   or: java -jar iscream.jar <option>");
        System.out.println("WHERE <option>:");
        System.out.println("      -l <filename> - the location of initial system properties");
        System.out.println("                      the default is ./etc/default.properties");
        System.out.println("      -f <name>     - the name of the filter (if there is one configured");
        System.out.println("      -fm <name>    - the name of the filter manager (if there is one configured");
        System.out.println("      -ci <name>    - the name of the client interface (if there is one configured");
        System.out.println("      -h            - this help screen");
        System.exit(1);
    }

//---CONSTRUCTORS---

//---PUBLIC METHODS---

//---PRIVATE METHODS---

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

//---ATTRIBUTES---
    
//---STATIC ATTRIBUTES---

    private static LinkedList _componentsToStart;
    private static int _startTimeout = 0;

}
Revision:	1.43
Committed:	Mon May 5 22:05:09 2003 UTC (21 years, 1 month ago) by tdb
Branch:	MAIN
Changes since 1.42:	+37 -29 lines
Log Message:	Tidy up of the client interface code - more commonly known as the "right hand side of the server". Right since the start the filter side of the server has been nice and tree like - every Filter sent data to another Filter. At the top of the tree there was a "special" Filter known as the RootFilter, which to the other Filters just looked like a normal Filter. This was nice, and simple, and expandable. The Client Interface on the other hand was messy. The root filter had some hacky wrapper threads which pulled from a queue and pushed to the relevant client interfaces (one for real time stuff, and the other for databases). There was no simple room for expandability - it was all hardwired to do just what was needed at the time. This commit changes that. A Client Interface now connects to another Client Interface, with a special one being found in the RootFilter (yes, maybe that needs a name change now :-). So we can chain client interfaces, and move other bits and bobs around in the server - for example, alerting no longer needs to be connected to the Client Interface, it can connect straight to the RootFilter (or, wherever the config tells it ;). Hopefully this sanitizes the underlying layout of the server a bit. As a final note, I dropped the DBInterface. This used to insert data in to a MySQL database. We've long since stopped using that, and it's fallen behind and is way out of date. For now, it's gone in to the attic.
#	User	Rev	Content
1	tdb	1.40	/*
2			* i-scream central monitoring system
3	tdb	1.41	* http://www.i-scream.org.uk
4	tdb	1.40	* Copyright (C) 2000-2002 i-scream
5			*
6			* This program is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19			*/
20
21	ajm	1.1	//---PACKAGE DECLARATION---
22	tdb	1.38	package uk.org.iscream.cms.server.componentmanager;
23	ajm	1.1
24			//---IMPORTS---
25			import java.util.*;
26			import java.io.*;
27	tdb	1.42	import uk.org.iscream.cms.util.*;
28	ajm	1.1
29			/**
30	ajm	1.2	* The component manager is the starting point for all
31			* server side components of the iscream system.
32			* It loads its initial system configuration from the
33			* default properties file, it then starts all the iscream
34			* components as specified in the default.properties under
35	tdb	1.38	* uk.org.iscream.cms.server.ComponentList
36	ajm	1.1	*
37	tdb	1.39	* @author $Author: tdb $
38	tdb	1.43	* @version $Id: ComponentManager.java,v 1.42 2003/02/05 16:43:46 tdb Exp $
39	ajm	1.1	*/
40			public class ComponentManager {
41
42			//---FINAL ATTRIBUTES---
43
44			/**
45			* The current CVS revision of this class
46			*/
47	tdb	1.43	public static final String REVISION = "$Revision: 1.42 $";
48	ajm	1.1
49			/**
50			* The toString() of this class
51			* As it won't be instatiated, this is needed.
52	ajm	1.2	* Not also that we pass a null as the class name (as we are static)
53	ajm	1.1	*/
54	ajm	1.2	public static final String toString = FormatName.getName("ComponentManager", null, REVISION);
55	ajm	1.1
56			/**
57			* The default location of the properties file for the system
58			*/
59	ajm	1.2	public static final String DEFAULTPROPERTIES = "./etc/default.properties";
60	ajm	1.1
61	ajm	1.22	/**
62	tdb	1.43	* The default time to wait before retrying
63	ajm	1.22	* component.
64			*/
65			public static final int DEFAULT_COMPONENT_START_TIMEOUT = 5;
66
67	ajm	1.1	//---STATIC METHODS---
68
69			/**
70	ajm	1.2	* The main method which starts the components as
71			* listed in the default.properties file.
72	ajm	1.1	*
73			* @param args the command line arguments
74			*/
75			public static void main(String[] args) {
76	ajm	1.36	System.out.println("-----------------------------------------");
77	tdb	1.11	System.out.println("--- i-scream Server Component Manager ---");
78	tdb	1.37	System.out.println("--- (c) 2001 The i-scream Project ---");
79	ajm	1.36	System.out.println("--- (http://www.i-scream.org.uk) ---");
80			System.out.println("-----------------------------------------");
81	tdb	1.43	System.out.println("--- Starting System ---");
82	ajm	1.2
83	ajm	1.1	// get the command line args
84			String defaultProperties = DEFAULTPROPERTIES;
85			String filterName = null;
86	tdb	1.39	String filterManagerName = null;
87	tdb	1.43	String clientInterfaceName = null;
88	tdb	1.11	for(int i=0; i < args.length; i++) {
89	tdb	1.12	if(args[i].equals("-h")) {
90	ajm	1.1	usage();
91	tdb	1.11	}
92	tdb	1.12	else if(args[i].equals("-f")) {
93	tdb	1.39	if(++i < args.length) {
94			filterName = args[i];
95			}
96			else {
97			usage();
98			}
99			}
100			else if(args[i].equals("-fm")) {
101			if(++i < args.length) {
102			filterManagerName = args[i];
103			}
104			else {
105			usage();
106			}
107	tdb	1.11	}
108	tdb	1.43	else if(args[i].equals("-ci")) {
109			if(++i < args.length) {
110			clientInterfaceName = args[i];
111			}
112			else {
113			usage();
114			}
115			}
116	tdb	1.12	else if(args[i].equals("-l")) {
117	tdb	1.39	if(++i < args.length) {
118			defaultProperties = args[i];
119			}
120			else {
121			usage();
122			}
123	tdb	1.11	}
124			else {
125			usage();
126			}
127	ajm	1.1	}
128
129			// load the default properties file into the system properties
130			System.out.println(toString + ": initialising - using " + defaultProperties);
131			try {
132			Properties initProperties = new Properties(System.getProperties());
133			initProperties.load(new FileInputStream(new File(defaultProperties)));
134			System.setProperties(initProperties);
135			} catch (Exception e) {
136			System.err.println(toString + ": ERROR " + e.getMessage());
137			usage();
138			}
139
140			// continue to bring the system up
141			System.out.println(toString + ": coming up");
142
143			// start the ORB by initialising the ReferenceManager
144	ajm	1.2	ReferenceManager refman = ReferenceManager.getInstance();
145	ajm	1.1
146	ajm	1.2	// now the ORB is running, we need to activate our RootPOA
147			// so that we can start serving requests once servants start up
148	ajm	1.1	refman.activatePOA();
149
150	ajm	1.2	// get the list of components
151	tdb	1.38	String componentList = System.getProperty("uk.org.iscream.cms.server.ComponentList");
152	ajm	1.1	StringTokenizer st = new StringTokenizer(componentList, ";");
153	tdb	1.33	_componentsToStart = new LinkedList();
154	ajm	1.13
155	ajm	1.1	// this could be done using reflection
156			// but..well..we don't ;-p
157			while (st.hasMoreTokens()){
158			String componentName = st.nextToken();
159			Component component = null;
160	ajm	1.13
161	ajm	1.2
162			// ### This is where the list of supported components is checked! ###
163			if (componentName.equalsIgnoreCase("core")) {
164	tdb	1.38	component = new uk.org.iscream.cms.server.core.Core();
165	tdb	1.39	// note the passing of the FilterManagers's name in its constructor
166	ajm	1.3	} else if (componentName.equalsIgnoreCase("filtermanager")) {
167	tdb	1.39	component = new uk.org.iscream.cms.server.filtermanager.FilterManager(filterManagerName);
168	ajm	1.4	} else if (componentName.equalsIgnoreCase("rootfilter")) {
169	tdb	1.38	component = new uk.org.iscream.cms.server.rootfilter.RootFilter();
170	ajm	1.6	} else if (componentName.equalsIgnoreCase("clientinterface")) {
171	tdb	1.43	component = new uk.org.iscream.cms.server.clientinterface.ClientInterfaceMain(clientInterfaceName);
172	ajm	1.7	// note the passing of the Filter's name in its constructor
173			} else if (componentName.equalsIgnoreCase("filter")) {
174	tdb	1.38	component = new uk.org.iscream.cms.server.filter.FilterMain(filterName);
175	tdb	1.30	} else if (componentName.equalsIgnoreCase("client")) {
176	tdb	1.38	component = new uk.org.iscream.cms.server.client.ClientMain();
177	ajm	1.1	}
178	ajm	1.2	// ### Add new component constructors in the above section! ###
179	ajm	1.3
180	ajm	1.22	// build the list of components to start
181	ajm	1.1	if (component != null) {
182	tdb	1.43	_componentsToStart.add(component);
183	ajm	1.13	} else {
184	tdb	1.33	System.err.println(toString + ": WARNING unsupported component not started: "+componentName);
185	ajm	1.13	}
186			}
187
188	ajm	1.32
189	ajm	1.22
190			// get the value for timeout
191	ajm	1.32
192	ajm	1.28	String confTimeout = null;
193	ajm	1.22	try {
194	tdb	1.38	confTimeout = System.getProperty("uk.org.iscream.cms.server.ComponentTimeout");
195	ajm	1.29	confTimeout.trim();
196	ajm	1.32	_startTimeout = Integer.parseInt(confTimeout);
197	ajm	1.22	} catch (NumberFormatException e) {
198	ajm	1.32	_startTimeout = DEFAULT_COMPONENT_START_TIMEOUT;
199	tdb	1.38	System.err.println(toString + ": unable to read uk.org.iscream.cms.server.ComponentTimeout value (" + confTimeout + "), using default!");
200	ajm	1.22	}
201	ajm	1.32	System.out.println(toString + ": using component start timeout of " + _startTimeout + " seconds");
202	ajm	1.22
203	ajm	1.31	// startup the system components
204			startUp();
205
206	tdb	1.43	// block on the ORB...in time, management functionality can be placed here.
207			// if we detect a CORBA communication error, we'll restart all the components.
208			// !! this doesn't appear to work !!
209			while(true) {
210			try {
211	ajm	1.31	refman.getORB().run();
212	ajm	1.32	} catch (org.omg.CORBA.COMM_FAILURE e) {
213	ajm	1.31	System.out.println(toString + ": WARNING CORBA communications failure - " + e.getMessage());
214			System.out.println(toString + ": WARNING CORBA connections have been lost - attempting to restart!");
215			}
216			startUp();
217			}
218			}
219
220			/**
221			* Starts the components as obtained from the configuration.
222			* This method calls the start() methods on all the components.
223			* If a component fails to start due to a CORBA communication
224			* problem, then it catches this and tries to start it again
225	tdb	1.38	* according to uk.org.iscream.cms.server.ComponentTimeout time.
226	ajm	1.31	*
227			* If the server dies and CORBA connections are lost, this method
228			* is called again.
229			*/
230			private static void startUp() {
231	tdb	1.43	// now we try and start the beast up
232	ajm	1.32	boolean tryAgain = true;
233			Component component = null;
234
235	ajm	1.22	// keep trying until we've started all the components.
236			// maybe add support for a limited number of retries
237	ajm	1.13	while(tryAgain) {
238	ajm	1.32	Iterator i = _componentsToStart.iterator();
239	tdb	1.33	LinkedList failedComponents = new LinkedList();
240	ajm	1.22	// go through all the components
241	ajm	1.13	while(i.hasNext()) {
242	tdb	1.43	// get a refence to the component
243			component = (Component) i.next();
244			System.out.println(toString + ": dependency checking component - " + component.toString());
245
246			// check it's dependencies
247			boolean depOK = component.depCheck();
248			if(depOK) {
249			System.out.println(toString + ": starting component - " + component.toString());
250			// it should be ok to start the component
251			try {
252			// start the component
253	tdb	1.33	component.start();
254			} catch (ComponentStartException e) {
255			// if we get this then there was a problem
256			// that we can't recover from
257			System.err.println(toString + ": ERROR starting component - " + component.toString());
258			System.err.println(toString + ": component reports - " + e.getMessage());
259			System.exit(1);
260			}
261			}
262			else {
263			// it seems the depedencies failed
264			// so we want to try again after a delay
265			System.err.println(toString + ": WARNING Component reported dependency failure");
266	ajm	1.14	System.err.println(toString + ": This could be because it can't communicate with components it needs.");
267	ajm	1.22
268			// make a list of the failed components
269	ajm	1.20	failedComponents.add(component);
270	ajm	1.1	}
271	ajm	1.13	}
272	ajm	1.22
273			// if we had some failed components that we can retry
274	ajm	1.21	if (failedComponents.size() > 0) {
275	ajm	1.14	System.err.println(toString + ": WARNING One or more components failed to start correctly.");
276	ajm	1.32	System.err.println(toString + ": Will try again in " + _startTimeout + " seconds");
277	ajm	1.22
278			// our list is now the failed list
279	ajm	1.32	_componentsToStart = failedComponents;
280	ajm	1.22
281			// sleep for a given timeout
282	tdb	1.43	try {
283	ajm	1.32	Thread.sleep(_startTimeout * 1000);
284	ajm	1.17	} catch (InterruptedException e) {
285			// we're not bothered
286			}
287	ajm	1.22	// otherwise we started everything
288	ajm	1.18	} else {
289	ajm	1.22	// so we set to exit the loop
290	ajm	1.18	tryAgain = false;
291	ajm	1.1	}
292			}
293	tdb	1.43
294			System.out.println(toString + ": running");
295			}
296	ajm	1.3
297			/**
298	ajm	1.1	* A simple method to print the usage of this class.
299			* It never returns, but instead exits to the system
300			* with a value 1, to indicate the system did not start
301			* properly.
302			*/
303			public static void usage() {
304	tdb	1.38	System.out.println("USAGE: java uk.org.iscream.cms.server.componentmanager.ComponentManager <option>");
305	tdb	1.8	System.out.println(" or: java -jar iscream.jar <option>");
306	ajm	1.1	System.out.println("WHERE <option>:");
307			System.out.println(" -l <filename> - the location of initial system properties");
308	ajm	1.2	System.out.println(" the default is ./etc/default.properties");
309	ajm	1.1	System.out.println(" -f <name> - the name of the filter (if there is one configured");
310	tdb	1.39	System.out.println(" -fm <name> - the name of the filter manager (if there is one configured");
311	tdb	1.43	System.out.println(" -ci <name> - the name of the client interface (if there is one configured");
312	ajm	1.1	System.out.println(" -h - this help screen");
313			System.exit(1);
314			}
315
316			//---CONSTRUCTORS---
317
318			//---PUBLIC METHODS---
319
320			//---PRIVATE METHODS---
321
322			//---ACCESSOR/MUTATOR METHODS---
323
324			//---ATTRIBUTES---
325
326			//---STATIC ATTRIBUTES---
327	ajm	1.32
328	tdb	1.33	private static LinkedList _componentsToStart;
329	ajm	1.32	private static int _startTimeout = 0;
330	ajm	1.1
331			}