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 <comphelper/diagnose_ex.hxx>
  29 #include <rtl/tencinfo.h>
  30
  31
  32 namespace logging
  33 {
  34
  35
  36     using ::com::sun::star::uno::Reference;
  37     using ::com::sun::star::uno::XComponentContext;
  38     using ::com::sun::star::logging::LogRecord;
  39     using ::com::sun::star::logging::XLogFormatter;
  40     using ::com::sun::star::uno::Exception;
  41     using ::com::sun::star::lang::IllegalArgumentException;
  42     using ::com::sun::star::lang::DisposedException;
  43     using ::com::sun::star::logging::PlainTextFormatter;
  44
  45     namespace LogLevel = ::com::sun::star::logging::LogLevel;
  46
  47     LogHandlerHelper::LogHandlerHelper( const Reference< XComponentContext >& _rxContext, ::osl::Mutex& _rMutex, ::cppu::OBroadcastHelper& _rBHelper )
  48         :m_eEncoding( RTL_TEXTENCODING_UTF8 )
  49         ,m_nLevel( LogLevel::SEVERE )
  50         ,m_xContext( _rxContext )
  51         ,m_rMutex( _rMutex )
  52         ,m_rBHelper( _rBHelper )
  53         ,m_bInitialized( false )
  54     {
  55     }
  56
  57
  58     void LogHandlerHelper::initFromSettings( const ::comphelper::NamedValueCollection& _rSettings )
  59     {
  60         OUString sEncoding;
  61         if ( _rSettings.get_ensureType( "Encoding", sEncoding ) )
  62         {
  63             if ( !setEncoding( sEncoding ) )
  64                 throw IllegalArgumentException();
  65         }
  66
  67         _rSettings.get_ensureType( "Formatter", m_xFormatter );
  68         _rSettings.get_ensureType( "Level", m_nLevel );
  69     }
  70
  71
  72     void LogHandlerHelper::enterMethod()
  73     {
  74         m_rMutex.acquire();
  75
  76         if ( !m_bInitialized )
  77             throw DisposedException("component not initialized" );
  78
  79         if ( m_rBHelper.bDisposed )
  80             throw DisposedException("component already disposed" );
  81
  82         // fallback settings, in case they weren't passed at construction time
  83         if ( !getFormatter().is() )
  84         {
  85             try
  86             {
  87                 Reference< XLogFormatter > xFormatter( PlainTextFormatter::create( m_xContext ), css::uno::UNO_SET_THROW );
  88                 setFormatter( xFormatter );
  89             }
  90             catch( const Exception& )
  91             {
  92                 DBG_UNHANDLED_EXCEPTION("extensions.logging");
  93             }
  94         }
  95     }
  96
  97
  98     bool LogHandlerHelper::getEncoding( OUString& _out_rEncoding ) const
  99     {
 100         const char* pMimeCharset = rtl_getMimeCharsetFromTextEncoding( m_eEncoding );
 101         if ( pMimeCharset )
 102         {
 103             _out_rEncoding = OUString::createFromAscii( pMimeCharset );
 104             return true;
 105         }
 106         _out_rEncoding.clear();
 107         return false;
 108     }
 109
 110
 111     bool LogHandlerHelper::setEncoding( std::u16string_view _rEncoding )
 112     {
 113         OString sAsciiEncoding( OUStringToOString( _rEncoding, RTL_TEXTENCODING_ASCII_US ) );
 114         rtl_TextEncoding eEncoding = rtl_getTextEncodingFromMimeCharset( sAsciiEncoding.getStr() );
 115         if ( eEncoding != RTL_TEXTENCODING_DONTKNOW )
 116         {
 117             m_eEncoding = eEncoding;
 118             return true;
 119         }
 120         return false;
 121     }
 122
 123
 124     bool LogHandlerHelper::formatForPublishing( const LogRecord& _rRecord, OString& _out_rEntry ) const
 125     {
 126         if ( _rRecord.Level < getLevel() )
 127             // not to be published due to low level
 128             return false;
 129
 130         try
 131         {
 132             Reference< XLogFormatter > xFormatter( getFormatter(), css::uno::UNO_SET_THROW );
 133             OUString sEntry( xFormatter->format( _rRecord ) );
 134             _out_rEntry = OUStringToOString( sEntry, getTextEncoding() );
 135             return true;
 136         }
 137         catch( const Exception& )
 138         {
 139             DBG_UNHANDLED_EXCEPTION("extensions.logging");
 140         }
 141         return false;
 142     }
 143
 144
 145     bool LogHandlerHelper::getEncodedHead( OString& _out_rHead ) const
 146     {
 147         try
 148         {
 149             Reference< XLogFormatter > xFormatter( getFormatter(), css::uno::UNO_SET_THROW );
 150             OUString sHead( xFormatter->getHead() );
 151             _out_rHead = OUStringToOString( sHead, getTextEncoding() );
 152             return true;
 153         }
 154         catch( const Exception& )
 155         {
 156             DBG_UNHANDLED_EXCEPTION("extensions.logging");
 157         }
 158         return false;
 159     }
 160
 161
 162     bool LogHandlerHelper::getEncodedTail( OString& _out_rTail ) const
 163     {
 164         try
 165         {
 166             Reference< XLogFormatter > xFormatter( getFormatter(), css::uno::UNO_SET_THROW );
 167             OUString sTail( xFormatter->getTail() );
 168             _out_rTail = OUStringToOString( sTail, getTextEncoding() );
 169             return true;
 170         }
 171         catch( const Exception& )
 172         {
 173             DBG_UNHANDLED_EXCEPTION("extensions.logging");
 174         }
 175         return false;
 176     }
 177
 178
 179 } // namespace logging
 180
 181
 182 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */