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//---PACKAGE DECLARATION--- |
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package uk.ac.ukc.iscream.core; |
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|
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//---IMPORTS--- |
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import uk.ac.ukc.iscream.util.*; |
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|
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/** |
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* The LoggerServant is an implementation of the Logger defined |
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* in the IDL interface. Allows classes to send logging information |
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* over CORBA to a local implementation of the LoggerImpl interface. |
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* |
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* @author $Author: ajm4 $ |
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* @version $Id: LoggerServant.java,v 1.3 2000/12/12 18:26:52 ajm4 Exp $ |
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*/ |
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class LoggerServant extends LoggerPOA { |
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|
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//---FINAL ATTRIBUTES--- |
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|
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/** |
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* The current CVS revision of this class |
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*/ |
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public final String REVISION = "$Revision: 1.3 $"; |
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|
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/** |
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* An array of names of verbosity levels. |
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* Thus logging messages are now "classed" by the level" |
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* This string is prepended to the "source" of a logging message. |
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*/ |
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public final static String[] VERBOSITY_NAMES = {"FATAL", "ERROR", "WARNING", "SYSMSG", "SYSINIT", "DEBUG"}; |
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|
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//---STATIC METHODS--- |
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|
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//---CONSTRUCTORS--- |
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|
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/** |
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* Creates a new LoggerServant. |
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* |
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* @param logger a reference to the LoggerImpl this will use |
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*/ |
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public LoggerServant(LoggerImpl logger) { |
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_logger = logger; |
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_verbosityLevel = Integer.parseInt(System.getProperty("uk.ac.ukc.iscream.Verbosity")); |
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write(toString(), Logger.SYSINIT, "started"); |
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write(toString(), Logger.SYSMSG, "using verbosity " + _verbosityLevel); |
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} |
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|
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//---PUBLIC METHODS--- |
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|
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/** |
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* The write() method simply passes the call on to it's local |
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* LoggerImpl object. |
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* |
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* Note the "source" is prepended with the name of the verbosity level. |
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* |
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* @param source A string representation of the calling object. |
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* @param verbosity the verbosity of this message |
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* @param message The text to be logged. |
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*/ |
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public void write(String source, int verbosity, String message) { |
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_logger.write("|" + VERBOSITY_NAMES[verbosity] + "|" source, verbosity, message); |
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} |
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|
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/** |
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* Overrides the {@link java.lang.Object#toString() Object.toString()} |
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* method to provide clean logging (every class should have this). |
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* |
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* This uses the uk.ac.ukc.iscream.util.FormatName class |
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* to format the toString() |
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* |
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* @return the name of this class and its CVS revision |
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*/ |
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public String toString() { |
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return FormatName.getName( |
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_name, |
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getClass().getName(), |
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REVISION); |
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} |
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|
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//---PRIVATE METHODS--- |
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|
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//---ACCESSOR/MUTATOR METHODS--- |
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|
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//---ATTRIBUTES--- |
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|
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/** |
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* The verbosity level of this instance |
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*/ |
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private int _verbosityLevel; |
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|
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/** |
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* The actual Logger used by this instance |
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*/ |
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private LoggerImpl _logger; |
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|
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/** |
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* This is the friendly identifier of the |
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* component this class is running in. |
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* eg, a Filter may be called "filter1", |
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* If this class does not have an owning |
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* component, a name from the configuration |
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* can be placed here. This name could also |
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* be changed to null for utility classes. |
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*/ |
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private String _name = Core.NAME; |
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|
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//---STATIC ATTRIBUTES--- |
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|
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} |
