core/loggers/MultiLogger.java

//---PACKAGE DECLARATION---

//---IMPORTS---
import uk.ac.ukc.iscream.core.*;
import java.io.IOException;

/**
 * The MultiLogger is just a gateway to both the ScreenLogger
 * and the FileLogger.
 *
 * @author  $Author$
 * @version $Id$
 */
class MultiLogger implements LoggerImpl {

//---FINAL ATTRIBUTES---

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

//---CONSTRUCTORS---

    /**
     * Creates a new MultiLogger.
     */
    public MultiLogger() throws IOException {
        _screenlog = new ScreenLogger();
        _filelog = new FileLogger();
        write(this.toString(), Logger.SYSINIT, "started");
    }

//---PUBLIC METHODS---

    /**
         * The write() method takes a message, formats it using the
         * formatLogLine() method, and then outputs it to the screen
         * using System.out.println(). The source is usually the
         * calling object, referenced by `this'. The method has been
         * made synchronized to avoid it being called by two different
         * objects and the output ending up merged on the screen.
         * 
         * @param source A string representation of the calling object.
         * @param verbosity the verbosity of this message
         * @param message The text to be logged.
         */   
    public synchronized void write(String source, int verbosity, String message) {
        _screenlog.write(source, verbosity, message);
        _filelog.write(source, verbosity, message);
    }
       
    /**
     * Overrides the {@link java.lang.Object#toString() Object.toString()}
     * method to provide clean logging (every class should have this).
     *
     * @return the name of this class and its CVS revision
     */
    public String toString() {
        return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")";
    }
//---PRIVATE METHODS---

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

//---ATTRIBUTES---

        /**
         * A reference to the ScreenLogger we'll use
         */
        private LoggerImpl _screenlog;
        
        /**
         * A reference to the FileLogger we'll use
         */
        private LoggerImpl _filelog;
    
//---STATIC ATTRIBUTES---
    
}
Revision:	1.1
Committed:	Mon Nov 20 18:35:18 2000 UTC (23 years, 6 months ago) by tdb
Branch:	MAIN
Log Message:	New MultiLogger. Does exactly the same, but implements a Java interface instead. No CORBA functionality is present in this class, instead it is used by the new LoggerServant. Also added new method of acquiring the verbosity directly from the configuration system.
#	User	Rev	Content
1	tdb	1.1	//---PACKAGE DECLARATION---
2
3			//---IMPORTS---
4			import uk.ac.ukc.iscream.core.*;
5			import java.io.IOException;
6
7			/**
8			* The MultiLogger is just a gateway to both the ScreenLogger
9			* and the FileLogger.
10			*
11			* @author $Author$
12			* @version $Id$
13			*/
14			class MultiLogger implements LoggerImpl {
15
16			//---FINAL ATTRIBUTES---
17
18			/**
19			* The current CVS revision of this class
20			*/
21			public final String REVISION = "$Revision: 1.1 $";
22
23			//---STATIC METHODS---
24
25			//---CONSTRUCTORS---
26
27			/**
28			* Creates a new MultiLogger.
29			*/
30			public MultiLogger() throws IOException {
31			_screenlog = new ScreenLogger();
32			_filelog = new FileLogger();
33			write(this.toString(), Logger.SYSINIT, "started");
34			}
35
36			//---PUBLIC METHODS---
37
38			/**
39			* The write() method takes a message, formats it using the
40			* formatLogLine() method, and then outputs it to the screen
41			* using System.out.println(). The source is usually the
42			* calling object, referenced by `this'. The method has been
43			* made synchronized to avoid it being called by two different
44			* objects and the output ending up merged on the screen.
45			*
46			* @param source A string representation of the calling object.
47			* @param verbosity the verbosity of this message
48			* @param message The text to be logged.
49			*/
50			public synchronized void write(String source, int verbosity, String message) {
51			_screenlog.write(source, verbosity, message);
52			_filelog.write(source, verbosity, message);
53			}
54
55			/**
56			* Overrides the {@link java.lang.Object#toString() Object.toString()}
57			* method to provide clean logging (every class should have this).
58			*
59			* @return the name of this class and its CVS revision
60			*/
61			public String toString() {
62			return this.getClass().getName() + "(" + REVISION.substring(11, REVISION.length() - 2) + ")";
63			}
64			//---PRIVATE METHODS---
65
66			//---ACCESSOR/MUTATOR METHODS---
67
68			//---ATTRIBUTES---
69
70			/**
71			* A reference to the ScreenLogger we'll use
72			*/
73			private LoggerImpl _screenlog;
74
75			/**
76			* A reference to the FileLogger we'll use
77			*/
78			private LoggerImpl _filelog;
79
80			//---STATIC ATTRIBUTES---
81
82			}