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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef __com_sun_star_logging_XLogger_idl__
+#define __com_sun_star_logging_XLogger_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+
+
+module com { module sun { module star { module logging {
+
+interface XLogHandler;
+
+
+/** implemented by a component which is able to log events.
+
+ <p>This interface is roughly designed after the
+ <a href="http://java.sun.com/javase/6/docs/api/java/util/logging/package-summary.html">Java
+ Logging API</a>. However, there are some differences, the major ones being:
+ <ul><li>There's no support (yet) for filtering log events.</li>
+ <li>There ain't no convenience methods for logging.</li>
+ <li>There's no localization support.</li>
+ <li>Logger instances do not form a hierarchy.</li>
+ </ul></p>
+
+ @since OOo 2.3
+ */
+interface XLogger
+{
+ /** denotes the name of the logger.
+ */
+ [attribute, readonly] string Name;
+
+ /** specifies which log events are logged or ignored.
+
+ @see LogLevel
+ */
+ [attribute] long Level;
+
+ /** adds the given handler to the list of handlers.
+
+ <p>When an event is logged, the logger will create a LogRecord
+ for this event, and pass this record to all registered handlers. Single handlers
+ might or might not log those records at their own discretion, and depending on
+ additional restrictions such as filters specified at handler level.</p>
+
+ <p>Note: The log level of the given handler (XLogHandler::Level) will
+ not be touched. In particular, it will not be set to the logger's log level. It's
+ the responsibility of the component which knits a logger with one or more
+ log handlers to ensure that all loggers have appropriate levels set.</p>
+
+ @param LogHandler
+ the handler to add to the list of handlers. The call is ignored if this
+ parameter is `NULL`.
+ */
+ void addLogHandler( [in] XLogHandler LogHandler );
+
+ /** removes the given handler from the list of handlers.
+
+ @param LogHandler
+ the handler to remove from the list of handlers. The call is ignored if this
+ parameter is `NULL`, or if the handler has not previously been added.
+ */
+ void removeLogHandler( [in] XLogHandler LogHandler );
+
+ /** determines whether logger instance would produce any output for the given level.
+
+ <p>The method can be used to optimize performance as maybe complex parameter evaluation
+ in the <code>log</code> calls can be omitted if <code>isLoggable</code> evaluates to false.</p>
+
+ @param Level
+ level to be checked against
+
+ @returns
+ `TRUE` if there would be some output for this XLogger for the given level, `FALSE`
+ otherwise. Note that a return value of `FALSE` could also indicate that the logger
+ does not have any log handlers associated with it.
+
+ @see addLogHandler
+ @see removeLogHandler
+ */
+ boolean isLoggable( [in] long Level );
+
+ /** logs a given message
+
+ @param Level
+ the log level of this message. If this level is smaller than the logger's #Level
+ attribute, then the call will be ignored.
+
+ @param Message
+ the message to log
+ */
+ void log( [in] long Level, [in] string Message );
+
+ /** logs a given message, detailing the source class and method at which the logged
+ event occurred.
+
+ @param Level
+ the log level of this message. If this level is smaller than the logger's #Level
+ attribute, then the call will be ignored.
+
+ @param SourceClass
+ the source class at which the logged event occurred.
+
+ @param SourceMethod
+ the source class at which the logged event occurred.
+
+ @param Message
+ the message to log
+ */
+ void logp( [in] long Level, [in] string SourceClass, [in] string SourceMethod, [in] string Message );
+};
+
+
+}; }; }; };
+
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */