extensions/source/logging/loghandler.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "loghandler.hxx"
  22
  23 #include <com/sun/star/logging/LogLevel.hpp>
  24 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  25 #include <com/sun/star/lang/DisposedException.hpp>
  26 #include <com/sun/star/logging/PlainTextFormatter.hpp>
  27
  28 #include <tools/diagnose_ex.h>
  29 #include <comphelper/componentcontext.hxx>
  30 #include <rtl/tencinfo.h>
  31
  32 //........................................................................
  33 namespace logging
  34 {
  35 //........................................................................
  36
  37     using ::com::sun::star::uno::Reference;
  38     using ::com::sun::star::uno::XComponentContext;
  39     using ::com::sun::star::uno::Any;
  40     using ::com::sun::star::logging::LogRecord;
  41     using ::com::sun::star::uno::UNO_QUERY_THROW;
  42     using ::com::sun::star::logging::XLogFormatter;
  43     using ::com::sun::star::uno::Exception;
  44     using ::com::sun::star::lang::IllegalArgumentException;
  45     using ::com::sun::star::lang::DisposedException;
  46     using ::com::sun::star::logging::PlainTextFormatter;
  47
  48     namespace LogLevel = ::com::sun::star::logging::LogLevel;
  49
  50     //====================================================================
  51     //= LogHandlerHelper
  52     //====================================================================
  53     //--------------------------------------------------------------------
  54     LogHandlerHelper::LogHandlerHelper( const Reference< XComponentContext >& _rxContext, ::osl::Mutex& _rMutex, ::cppu::OBroadcastHelper& _rBHelper )
  55         :m_eEncoding( RTL_TEXTENCODING_UTF8 )
  56         ,m_nLevel( LogLevel::SEVERE )
  57         ,m_xFormatter( NULL )
  58         ,m_xContext( _rxContext )
  59         ,m_rMutex( _rMutex )
  60         ,m_rBHelper( _rBHelper )
  61         ,m_bInitialized( false )
  62     {
  63     }
  64
  65     //--------------------------------------------------------------------
  66     void LogHandlerHelper::initFromSettings( const ::comphelper::NamedValueCollection& _rSettings )
  67     {
  68         OUString sEncoding;
  69         if ( _rSettings.get_ensureType( "Encoding", sEncoding ) )
  70         {
  71             if ( !setEncoding( sEncoding ) )
  72                 throw IllegalArgumentException();
  73         }
  74
  75         _rSettings.get_ensureType( "Formatter", m_xFormatter );
  76         _rSettings.get_ensureType( "Level", m_nLevel );
  77     }
  78
  79     //--------------------------------------------------------------------
  80     void LogHandlerHelper::enterMethod()
  81     {
  82         m_rMutex.acquire();
  83
  84         if ( !getIsInitialized() )
  85             throw DisposedException( OUString( "component not initialized" ), NULL );
  86
  87         if ( m_rBHelper.bDisposed )
  88             throw DisposedException( OUString( "component already disposed" ), NULL );
  89
  90         // fallback settings, in case they weren't passed at construction time
  91         if ( !getFormatter().is() )
  92         {
  93             try
  94             {
  95                 Reference< XLogFormatter > xFormatter( PlainTextFormatter::create( m_xContext ), UNO_QUERY_THROW );
  96                 setFormatter( xFormatter );
  97             }
  98             catch( const Exception& )
  99             {
 100                 DBG_UNHANDLED_EXCEPTION();
 101             }
 102         }
 103     }
 104
 105     //--------------------------------------------------------------------
 106     bool LogHandlerHelper::getEncoding( OUString& _out_rEncoding ) const
 107     {
 108         const char* pMimeCharset = rtl_getMimeCharsetFromTextEncoding( m_eEncoding );
 109         if ( pMimeCharset )
 110         {
 111             _out_rEncoding = OUString::createFromAscii( pMimeCharset );
 112             return true;
 113         }
 114         _out_rEncoding = OUString();
 115         return false;
 116     }
 117
 118     //--------------------------------------------------------------------
 119     bool LogHandlerHelper::setEncoding( const OUString& _rEncoding )
 120     {
 121         OString sAsciiEncoding( OUStringToOString( _rEncoding, RTL_TEXTENCODING_ASCII_US ) );
 122         rtl_TextEncoding eEncoding = rtl_getTextEncodingFromMimeCharset( sAsciiEncoding.getStr() );
 123         if ( eEncoding != RTL_TEXTENCODING_DONTKNOW )
 124         {
 125             m_eEncoding = eEncoding;
 126             return true;
 127         }
 128         return false;
 129     }
 130
 131     //--------------------------------------------------------------------
 132     bool LogHandlerHelper::formatForPublishing( const LogRecord& _rRecord, OString& _out_rEntry ) const
 133     {
 134         if ( _rRecord.Level < getLevel() )
 135             // not to be published due to low level
 136             return false;
 137
 138         try
 139         {
 140             Reference< XLogFormatter > xFormatter( getFormatter(), UNO_QUERY_THROW );
 141             OUString sEntry( xFormatter->format( _rRecord ) );
 142             _out_rEntry = OUStringToOString( sEntry, getTextEncoding() );
 143             return true;
 144         }
 145         catch( const Exception& )
 146         {
 147             DBG_UNHANDLED_EXCEPTION();
 148         }
 149         return false;
 150     }
 151
 152     //--------------------------------------------------------------------
 153     bool LogHandlerHelper::getEncodedHead( OString& _out_rHead ) const
 154     {
 155         try
 156         {
 157             Reference< XLogFormatter > xFormatter( getFormatter(), UNO_QUERY_THROW );
 158             OUString sHead( xFormatter->getHead() );
 159             _out_rHead = OUStringToOString( sHead, getTextEncoding() );
 160             return true;
 161         }
 162         catch( const Exception& )
 163         {
 164             DBG_UNHANDLED_EXCEPTION();
 165         }
 166         return false;
 167     }
 168
 169     //--------------------------------------------------------------------
 170     bool LogHandlerHelper::getEncodedTail( OString& _out_rTail ) const
 171     {
 172         try
 173         {
 174             Reference< XLogFormatter > xFormatter( getFormatter(), UNO_QUERY_THROW );
 175             OUString sTail( xFormatter->getTail() );
 176             _out_rTail = OUStringToOString( sTail, getTextEncoding() );
 177             return true;
 178         }
 179         catch( const Exception& )
 180         {
 181             DBG_UNHANDLED_EXCEPTION();
 182         }
 183         return false;
 184     }
 185
 186 //........................................................................
 187 } // namespace logging
 188 //........................................................................
 189
 190 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */