package at.gv.egovernment.moa.logging; /** * Provides each thread with a single instance of <code>LoggingContext</code>. * * @author Patrick Peck * @version $Id$ */ public class LoggingContextManager { /** The single instance of this class. */ private static LoggingContextManager instance = null; /** The <code>LoggingContext</code> for each thread. */ private ThreadLocal context; /** * Get the single instance of the <code>LoggingContextManager</code> class. * * @return LoggingContextManager The single instance. */ public static synchronized LoggingContextManager getInstance() { if (instance == null) { instance = new LoggingContextManager(); } return instance; } /** * Creates a new <code>LoggingContextManager</code>. * * Protected to disallow direct instantiation. */ protected LoggingContextManager() { context = new ThreadLocal(); } /** * Set the <code>LoggingContext</code> context for the current thread. * * @param ctx The <code>LoggingContext</code> for the current thread. */ public void setLoggingContext(LoggingContext ctx) { context.set(ctx); } /** * Return the <code>LoggingContext</code> for the current thread. * * @return LoggingContext The <code>LoggingContext</code> for the current * thread, or <code>null</code> if none has been set. */ public LoggingContext getLoggingContext() { return (LoggingContext) context.get(); } }