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root/i-scream/projects/cms/source/server/uk/org/iscream/cms/server/core/Core.java

Comparing projects/cms/source/server/uk/org/iscream/cms/server/core/Core.java (file contents):
Revision 1.7 by tdb, Thu Nov 16 15:24:32 2000 UTC vs.
Revision 1.14 by ajm, Mon Nov 20 21:10:09 2000 UTC

#	Line 5 | Line 5 | import uk.ac.ukc.iscream.core.*;
5		import org.omg.CORBA.*;
6		import org.omg.CosNaming.*;
7		import org.omg.PortableServer.*;
8	+	import java.util.*;
9	+	import java.io.*;
10
11		/**
12		* The main class for the CORE of the I-Scream system.
#	Line 26 | Line 28 | class Core {
28		*/
29		public static final String REVISION = "$Revision$";
30
31	+	/**
32	+	* The toString() of this class
33	+	* As it won't be instatiated, this is needed.
34	+	*/
35	+	public static final String toString = "CORE(" + REVISION.substring(11, REVISION.length() - 2) + ")";
36	+
37	+	/**
38	+	* The default location of the properties file for the system
39	+	*/
40	+	public static final String DEFAULTPROPERTIES = "default.properties";
41	+
42		//---STATIC METHODS---
43
44		/**
#	Line 36 | Line 49 | class Core {
49		* @param args the command line arguments
50		*/
51		public static void main(String[] args) {
39	–	System.setProperty("org.omg.CORBA.ORBClass","jacorb.orb.ORB");
40	–	System.setProperty("org.omg.CORBA.ORBSingletonClass","jacorb.orb.ORBSingleton");
41	–
52		System.out.println("--- I-Scream ---");
53	<
54	<	// can't have a real toString() :)
55	<	String toString = "CORE(" + REVISION.substring(11, REVISION.length() - 2) + ")";
56	<
57	<	System.out.println(toString + ": coming up");
58	<
53	>
54	>	// get the command line args
55	>	String defaultProperties = DEFAULTPROPERTIES;
56	>	if (args.length > 0) {
57	>	if (args[0].equals("-l")) {
58	>	defaultProperties = args[1];
59	>	} else if (args[0].equals("-h")) {
60	>	usage();
61	>	} else {
62	>	usage();
63	>	}
64	>	}
65	>
66	>	// load the default properties file into the system properties
67	>	System.out.println(toString + ": initialising - using " + defaultProperties);
68		try {
69	+	Properties initProperties = new Properties(System.getProperties());
70	+	initProperties.load(new FileInputStream(new File(defaultProperties)));
71	+	System.setProperties(initProperties);
72	+
73	+
74	+	} catch (Exception e) {
75	+	System.err.println(toString + ": ERROR " + e.getMessage());
76	+	usage();
77	+	}
78	+
79	+	// continue to bring the system up
80	+	System.out.println(toString + ": coming up");
81	+	try {
82		// start the ORB
83		ORB orb = ORB.init(args, null);
84
#	Line 58 | Line 90 | class Core {
90		objRef = orb.resolve_initial_references("NameService");
91		NamingContextExt ncRef = NamingContextExtHelper.narrow(objRef);
92
93	+	// check we got it
94	+	if (ncRef == null) {
95	+	throw new Exception("Unable to locate CORBA Naming Service for configured ORB!");
96	+	}
97	+
98		// start and bind each server in turn
99	<
100	<	// create the logger (either Screen or File)
101	<	ScreenLoggerServant loggerRef = new ScreenLoggerServant(3);
102	<	//FileLoggerServant loggerRef = new FileLoggerServant("core.log");
103	<	// and advertise it to the naming context
99	>
100	>	// work out which logger to use
101	>	String whichLogger = System.getProperty("uk.ac.ukc.iscream.LoggerClass", defaultLogger);
102	>
103	>	// construct the relevant LoggerImpl
104	>	LoggerImpl loggerImplRef = (LoggerImpl) ClassLoader.getSystemClassLoader().loadClass(whichLogger).newInstance();
105	>
106	>	// setup and bind the LoggerServant
107	>	LoggerServant loggerRef = new LoggerServant(loggerImplRef);
108		objRef = poa.servant_to_reference(loggerRef);
109		ncRef.bind(ncRef.to_name("iscream.Logger"), objRef);
110
111	<	// get a ref to the logger servant as a Logger reference
111	>	// get a reference to the servant as a Logger
112		Logger logRef = LoggerHelper.narrow(objRef);
113	<
113	>
114		// create the Configurator
115	<	ConfiguratorServant configuratorRef = new ConfiguratorServant(poa, logRef);
115	>	ConfigurationManagerServant configManRef = new ConfigurationManagerServant(poa, logRef);
116	>
117		// and advertise it to the naming context
118	<	objRef = poa.servant_to_reference(configuratorRef);
119	<	ncRef.bind(ncRef.to_name("iscream.Configurator"), objRef);
118	>	objRef = poa.servant_to_reference(configManRef);
119	>	ncRef.bind(ncRef.to_name("iscream.ConfigurationManager"), objRef);
120
121		// start the POA off
122		poa.the_POAManager().activate();
123
124	<	logRef.write(toString, "started");
124	>	logRef.write(toString, Logger.SYSINIT, "started");
125
126		// now we are running, we just need to serve
127		// so we ask the orb to block for us until it has finished
#	Line 90 | Line 132 | class Core {
132
133		// there is already another CORE of the same name registered
134		if ( e instanceof org.omg.CosNaming.NamingContextPackage.AlreadyBound) {
135	<	System.err.println("ERROR: Another I-Scream CORE is already registered under the same name.");
135	>	System.err.println("CORE ERROR: Another I-Scream CORE is already registered under the same name.");
136
137		// otherwise we don't know what happened
138	<	// so print the error and do a stack trace
138	>	// so print the error and do a stack trace if debug is enabled
139		} else {
140	<	System.err.println("CORE ERROR: " + e);
141	<	e.printStackTrace(System.out);
140	>	System.err.println("CORE ERROR: " + e.getMessage());
141	>	if (Integer.parseInt(System.getProperty("uk.ac.ukc.iscream.Verbosity")) == Logger.DEBUG) {
142	>	System.err.println("*** DEBUG ENABLED - printing stack trace ***");
143	>	e.printStackTrace(System.out);
144	>	}
145		}
146		}
147		}
148	+
149	+	/**
150	+	* A simple method to print the usage of this class.
151	+	* It never returns, but instead exits to the system
152	+	* with a value 1, to indicate the system did not start
153	+	* properly.
154	+	*/
155	+	public static void usage() {
156	+	System.out.println("USAGE: java Core.java <option>");
157	+	System.out.println("WHERE <option>:");
158	+	System.out.println("      -l <filename> - the location of initial system properties");
159	+	System.out.println("      -h            - this help screen");
160	+	System.exit(1);
161	+	}
162
163		//---CONSTRUCTORS---
164
#	Line 110 | Line 169 | class Core {
169		//---ACCESSOR/MUTATOR METHODS---
170
171		//---ATTRIBUTES---
172	<
172	>
173		//---STATIC ATTRIBUTES---
174	+
175	+	/**
176	+	* Default logger, to be used when one is not provided
177	+	* in the configuration.
178	+	*/
179	+	private static final String defaultLogger = "ScreenLogger";
180	+
181	+	/**
182	+	* Default configPath, to be used when one is not provided
183	+	* in the configuration.
184	+	*/
185	+	private static final String defaultConfigPath = ".";
186
187		}

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