Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 460 insertions, 0 deletions

diff --git a/include/comphelper/logging.hxx b/include/comphelper/logging.hxx
new file mode 100644
index 000000000..f0a599765
--- /dev/null
+++ b/include/comphelper/logging.hxx
@@ -0,0 +1,460 @@
+/* -*- 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 INCLUDED_COMPHELPER_LOGGING_HXX
+#define INCLUDED_COMPHELPER_LOGGING_HXX
+
+#include <comphelper/comphelperdllapi.h>
+#include <rtl/ustring.hxx>
+
+#include <optional>
+#include <memory>
+
+namespace com::sun::star::uno { template <class interface_type> class Reference; }
+namespace com::sun::star::uno { class XComponentContext; }
+namespace com::sun::star::logging { class XLogger; }
+
+namespace comphelper
+{
+
+
+    //= string conversions, employed by the templatized log* members of
+    //= EventLogger
+
+
+    namespace log::convert
+    {
+        inline const OUString& convertLogArgToString( const OUString& _rValue )
+        {
+            return _rValue;
+        }
+
+        inline OUString convertLogArgToString( const char* _pAsciiValue )
+        {
+            return OUString::createFromAscii( _pAsciiValue );
+        }
+
+        inline OUString convertLogArgToString( double      _nValue ) { return OUString::number( _nValue ); }
+        inline OUString convertLogArgToString( float       _nValue ) { return OUString::number( _nValue ); }
+        inline OUString convertLogArgToString( sal_Int64   _nValue ) { return OUString::number( _nValue ); }
+        inline OUString convertLogArgToString( sal_Int32   _nValue ) { return OUString::number( _nValue ); }
+        inline OUString convertLogArgToString( sal_Int16   _nValue ) { return OUString::number( _nValue ); }
+        inline OUString convertLogArgToString( sal_Unicode _nValue ) { return OUString( _nValue ); }
+        inline OUString convertLogArgToString( bool    _bValue ) { return OUString::boolean( _bValue ); }
+        void convertLogArgToString(sal_Bool) = delete;
+
+    } // namespace log::convert
+
+
+    //= EventLogger
+
+    class EventLogger_Impl;
+    typedef ::std::optional< OUString >    OptionalString;
+
+    /** encapsulates a css::logging::XLogger
+
+        The class silences several (unlikely) errors which could potentially happen
+        when working with a logger. Additionally, it provides some convenience methods
+        for logging events.
+
+        You can use this class as follows
+<pre>
+    EventLogger aLogger( xContext, sLoggerName );
+    ...
+    aLogger.log( LogLevel::SEVERE, sSomeMessage );
+    aLogger.logp( LogLevel::CONFIG, "MyClass", "MyMethod", sSomeMessage, SomeParameter1, SomeParameter2, SomeParameter3 );
+</pre>
+
+        The <code>log</code> and <code>logp</code> calls support up to 6 parameters, which can be of
+        arbitrary type. For every parameter, there must exist a function <code>convertLogArgToString</code>
+        which takes an argument of the respective type, and returns a string.
+
+        After a parameter has been converted to a string using the above mentioned
+        <code>convertLogArgToString</code> function, a placeholder $1$ (resp. $2$ resp. $4$ ...)
+        in the message will be replaced with this string, and the resulting message will be logged.
+    */
+    class COMPHELPER_DLLPUBLIC EventLogger
+    {
+    protected:
+        std::shared_ptr< EventLogger_Impl > m_pImpl;
+
+    public:
+        /** creates an <code>EventLogger</code> instance working with a css.logging.XLogger
+            instance given by ASCII name.
+
+            @param _rxContext
+                the component context to create services
+
+            @param _rLoggerName
+                the ASCII name of the logger to create.
+        */
+        EventLogger(
+            const css::uno::Reference< css::uno::XComponentContext >& _rxContext,
+            const char* _pAsciiLoggerName
+        );
+
+    public:
+        /// determines whether an event with the given level would be logged
+        bool        isLoggable( const sal_Int32 _nLogLevel ) const;
+
+
+        //- XLogger::log equivalents/wrappers
+        //- string messages
+
+        /// logs a given message, without any arguments, or source class/method names
+        void        log( const sal_Int32 _nLogLevel, const OUString& rMessage ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log(_nLogLevel, nullptr, nullptr, rMessage);
+        }
+
+        const css::uno::Reference<css::logging::XLogger> & getLogger() const;
+
+        /** logs a given message, replacing a placeholder in the message with an argument
+
+            The function takes, additionally to the log level and the message, an arbitrary
+            argument. This argument is converted to a string using an overloaded function
+            named <code>convertLogArgToString</code>. Then, a placeholder &quot;$1$&quot;
+            is searched in the message string, and replaced with the argument string.
+        */
+        template< typename ARGTYPE1 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ) );
+        }
+
+        /// logs a given message, replacing 2 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ) );
+        }
+
+        /// logs a given message, replacing 3 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ) );
+        }
+
+        /// logs a given message, replacing 4 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ) );
+        }
+
+        /// logs a given message, replacing 5 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ) );
+        }
+
+        /// logs a given message, replacing 6 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5, typename ARGTYPE6 >
+        void        log( const sal_Int32 _nLogLevel, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5, ARGTYPE6 _argument6 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument6 ) ) );
+        }
+
+
+        //- XLogger::log equivalents/wrappers
+        //- ASCII messages
+
+        /** logs a given message, replacing a placeholder in the message with an argument
+
+            The function takes, additionally to the log level and the message, an arbitrary
+            argument. This argument is converted to a string using an overloaded function
+            named <code>convertLogArgToString</code>. Then, a placeholder &quot;$1$&quot;
+            is searched in the message string, and replaced with the argument string.
+        */
+        template< typename ARGTYPE1 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ) );
+        }
+
+        /// logs a given message, replacing 2 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ) );
+        }
+
+        /// logs a given message, replacing 3 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ) );
+        }
+
+        /// logs a given message, replacing 4 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ) );
+        }
+
+        /// logs a given message, replacing 5 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ) );
+        }
+
+        /// logs a given message, replacing 6 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5, typename ARGTYPE6 >
+        void        log( const sal_Int32 _nLogLevel, const char* _pMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5, ARGTYPE6 _argument6 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, nullptr, nullptr, OUString::createFromAscii( _pMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument6 ) ) );
+        }
+
+
+        //- XLogger::logp equivalents/wrappers
+        //- string messages
+
+        /** logs a given message, replacing a placeholder in the message with an argument
+
+            The function takes, additionally to the logp level and the message, an arbitrary
+            argument. This argument is converted to a string using an overloaded function
+            named <code>convertLogArgToString</code>. Then, a placeholder &quot;$1$&quot;
+            is searched in the message string, and replaced with the argument string.
+        */
+        template< typename ARGTYPE1 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ) );
+        }
+
+        /// logs a given message, replacing 2 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ) );
+        }
+
+        /// logs a given message, replacing 3 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ) );
+        }
+
+        /// logs a given message, replacing 4 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ) );
+        }
+
+        /// logs a given message, replacing 5 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ) );
+        }
+
+        /// logs a given message, replacing 6 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5, typename ARGTYPE6 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const OUString& _rMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5, ARGTYPE6 _argument6 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, _rMessage,
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument6 ) ) );
+        }
+
+
+        //- XLogger::logp equivalents/wrappers
+        //- ASCII messages
+
+        /** logs a given ASCII message, replacing a placeholder in the message with an argument
+
+            The function takes, additionally to the logp level and the message, an arbitrary
+            argument. This argument is converted to a string using an overloaded function
+            named <code>convertLogArgToString</code>. Then, a placeholder &quot;$1$&quot;
+            is searched in the message string, and replaced with the argument string.
+        */
+        template< typename ARGTYPE1 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ) );
+        }
+
+        /// logs a given ASCII message, replacing 2 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ) );
+        }
+
+        /// logs a given ASCII message, replacing 3 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ) );
+        }
+
+        /// logs a given ASCII message, replacing 4 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ) );
+        }
+
+        /// logs a given ASCII message, replacing 5 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ) );
+        }
+
+        /// logs a given ASCII message, replacing 6 placeholders in the message with respective values
+        template< typename ARGTYPE1, typename ARGTYPE2, typename ARGTYPE3, typename ARGTYPE4, typename ARGTYPE5, typename ARGTYPE6 >
+        void        logp( const sal_Int32 _nLogLevel, const char* _pSourceClass, const char* _pSourceMethod, const char* _pAsciiMessage, ARGTYPE1 _argument1, ARGTYPE2 _argument2, ARGTYPE3 _argument3, ARGTYPE4 _argument4, ARGTYPE5 _argument5, ARGTYPE6 _argument6 ) const
+        {
+            if ( isLoggable( _nLogLevel ) )
+                impl_log( _nLogLevel, _pSourceClass, _pSourceMethod, OUString::createFromAscii( _pAsciiMessage ),
+                    OptionalString( log::convert::convertLogArgToString( _argument1 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument2 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument3 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument4 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument5 ) ),
+                    OptionalString( log::convert::convertLogArgToString( _argument6 ) ) );
+        }
+
+    protected:
+        void        impl_log(
+                        const sal_Int32 _nLogLevel,
+                        const char* _pSourceClass,
+                        const char* _pSourceMethod,
+                        const OUString& _rMessage,
+                        const OptionalString& _rArgument1 = OptionalString(),
+                        const OptionalString& _rArgument2 = OptionalString(),
+                        const OptionalString& _rArgument3 = OptionalString(),
+                        const OptionalString& _rArgument4 = OptionalString(),
+                        const OptionalString& _rArgument5 = OptionalString(),
+                        const OptionalString& _rArgument6 = OptionalString()
+                    ) const;
+    };
+} // namespace comphelper
+
+
+#endif // INCLUDED_COMPHELPER_LOGGING_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */