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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 .
*/
#include "loggerconfig.hxx"
#include <stdio.h>
#include <string_view>
#include <com/sun/star/configuration/theDefaultProvider.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/container/XNameContainer.hpp>
#include <com/sun/star/lang/XSingleServiceFactory.hpp>
#include <com/sun/star/util/XChangesBatch.hpp>
#include <com/sun/star/logging/LogLevel.hpp>
#include <com/sun/star/lang/NullPointerException.hpp>
#include <com/sun/star/lang/ServiceNotRegisteredException.hpp>
#include <com/sun/star/beans/NamedValue.hpp>
#include <com/sun/star/logging/XLogHandler.hpp>
#include <com/sun/star/logging/XLogFormatter.hpp>
#include <tools/diagnose_ex.h>
#include <osl/process.h>
#include <cppuhelper/component_context.hxx>
namespace logging
{
using ::com::sun::star::uno::Reference;
using ::com::sun::star::logging::XLogger;
using ::com::sun::star::lang::XMultiServiceFactory;
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::uno::Any;
using ::com::sun::star::container::XNameContainer;
using ::com::sun::star::uno::UNO_QUERY_THROW;
using ::com::sun::star::lang::XSingleServiceFactory;
using ::com::sun::star::uno::XInterface;
using ::com::sun::star::util::XChangesBatch;
using ::com::sun::star::lang::NullPointerException;
using ::com::sun::star::uno::Exception;
using ::com::sun::star::lang::ServiceNotRegisteredException;
using ::com::sun::star::beans::NamedValue;
using ::com::sun::star::logging::XLogHandler;
using ::com::sun::star::logging::XLogFormatter;
using ::com::sun::star::container::XNameAccess;
using ::com::sun::star::uno::XComponentContext;
namespace LogLevel = ::com::sun::star::logging::LogLevel;
namespace
{
typedef void (*SettingTranslation)( const Reference< XLogger >&, const OUString&, Any& );
void lcl_substituteFileHandlerURLVariables_nothrow( const Reference< XLogger >& _rxLogger, OUString& _inout_rFileURL )
{
struct Variable
{
std::u16string_view pVariablePattern;
OUString sVariableValue;
};
OUString sLoggerName;
try { sLoggerName = _rxLogger->getName(); }
catch( const Exception& ) { DBG_UNHANDLED_EXCEPTION("extensions.logging"); }
TimeValue aTimeValue;
oslDateTime aDateTime;
OSL_VERIFY( osl_getSystemTime( &aTimeValue ) );
OSL_VERIFY( osl_getDateTimeFromTimeValue( &aTimeValue, &aDateTime ) );
char buffer[ 30 ];
const size_t buffer_size = sizeof( buffer );
snprintf( buffer, buffer_size, "%04i-%02i-%02i",
static_cast<int>(aDateTime.Year),
static_cast<int>(aDateTime.Month),
static_cast<int>(aDateTime.Day) );
OUString sDate = OUString::createFromAscii( buffer );
snprintf( buffer, buffer_size, "%02i-%02i-%02i.%03i",
static_cast<int>(aDateTime.Hours),
static_cast<int>(aDateTime.Minutes),
static_cast<int>(aDateTime.Seconds),
::sal::static_int_cast< sal_Int16 >( aDateTime.NanoSeconds / 10000000 ) );
OUString sTime = OUString::createFromAscii( buffer );
OUString sDateTime = sDate + "." + sTime;
oslProcessIdentifier aProcessId = 0;
oslProcessInfo info;
info.Size = sizeof (oslProcessInfo);
if ( osl_getProcessInfo ( nullptr, osl_Process_IDENTIFIER, &info ) == osl_Process_E_None)
aProcessId = info.Ident;
OUString aPID = OUString::number( aProcessId );
Variable const aVariables[] =
{
{std::u16string_view(u"$(loggername)"), sLoggerName},
{std::u16string_view(u"$(date)"), sDate},
{std::u16string_view(u"$(time)"), sTime},
{std::u16string_view(u"$(datetime)"), sDateTime},
{std::u16string_view(u"$(pid)"), aPID}
};
for (Variable const & aVariable : aVariables)
{
sal_Int32 nVariableIndex = _inout_rFileURL.indexOf( aVariable.pVariablePattern );
if (nVariableIndex >= 0)
{
_inout_rFileURL = _inout_rFileURL.replaceAt( nVariableIndex, aVariable.pVariablePattern.size(), aVariable.sVariableValue );
}
}
}
void lcl_transformFileHandlerSettings_nothrow( const Reference< XLogger >& _rxLogger, const OUString& _rSettingName, Any& _inout_rSettingValue )
{
if ( _rSettingName != "FileURL" )
// not interested in this setting
return;
OUString sURL;
OSL_VERIFY( _inout_rSettingValue >>= sURL );
lcl_substituteFileHandlerURLVariables_nothrow( _rxLogger, sURL );
_inout_rSettingValue <<= sURL;
}
Reference< XInterface > lcl_createInstanceFromSetting_throw(
const Reference<XComponentContext>& _rContext,
const Reference< XLogger >& _rxLogger,
const Reference< XNameAccess >& _rxLoggerSettings,
const char* _pServiceNameAsciiNodeName,
const char* _pServiceSettingsAsciiNodeName,
SettingTranslation _pSettingTranslation = nullptr
)
{
Reference< XInterface > xInstance;
// read the settings for the to-be-created service
Reference< XNameAccess > xServiceSettingsNode( _rxLoggerSettings->getByName(
OUString::createFromAscii( _pServiceSettingsAsciiNodeName ) ), UNO_QUERY_THROW );
Sequence< OUString > aSettingNames( xServiceSettingsNode->getElementNames() );
size_t nServiceSettingCount( aSettingNames.getLength() );
Sequence< NamedValue > aSettings( nServiceSettingCount );
if ( nServiceSettingCount )
{
const OUString* pSettingNames = aSettingNames.getConstArray();
const OUString* pSettingNamesEnd = aSettingNames.getConstArray() + aSettingNames.getLength();
NamedValue* pSetting = aSettings.getArray();
for ( ;
pSettingNames != pSettingNamesEnd;
++pSettingNames, ++pSetting
)
{
pSetting->Name = *pSettingNames;
pSetting->Value = xServiceSettingsNode->getByName( *pSettingNames );
if ( _pSettingTranslation )
_pSettingTranslation( _rxLogger, pSetting->Name, pSetting->Value );
}
}
OUString sServiceName;
_rxLoggerSettings->getByName( OUString::createFromAscii( _pServiceNameAsciiNodeName ) ) >>= sServiceName;
if ( !sServiceName.isEmpty() )
{
bool bSuccess = false;
if ( aSettings.hasElements() )
{
Sequence< Any > aConstructionArgs{ Any(aSettings) };
xInstance = _rContext->getServiceManager()->createInstanceWithArgumentsAndContext(sServiceName, aConstructionArgs, _rContext);
bSuccess = xInstance.is();
}
else
{
xInstance = _rContext->getServiceManager()->createInstanceWithContext(sServiceName, _rContext);
bSuccess = xInstance.is();
}
if ( !bSuccess )
throw ServiceNotRegisteredException( sServiceName );
}
return xInstance;
}
}
void initializeLoggerFromConfiguration( const Reference<XComponentContext>& _rContext, const Reference< XLogger >& _rxLogger )
{
try
{
if ( !_rxLogger.is() )
throw NullPointerException();
Reference< XMultiServiceFactory > xConfigProvider(
css::configuration::theDefaultProvider::get(_rContext));
// write access to the "Settings" node (which includes settings for all loggers)
Sequence<Any> aArguments{ Any(NamedValue(
"nodepath", Any(OUString("/org.openoffice.Office.Logging/Settings")))) };
Reference< XNameContainer > xAllSettings( xConfigProvider->createInstanceWithArguments(
"com.sun.star.configuration.ConfigurationUpdateAccess",
aArguments
), UNO_QUERY_THROW );
OUString sLoggerName( _rxLogger->getName() );
if ( !xAllSettings->hasByName( sLoggerName ) )
{
// no node yet for this logger. Create default settings.
Reference< XSingleServiceFactory > xNodeFactory( xAllSettings, UNO_QUERY_THROW );
Reference< XInterface > xLoggerSettings( xNodeFactory->createInstance(), css::uno::UNO_SET_THROW );
xAllSettings->insertByName( sLoggerName, Any( xLoggerSettings ) );
Reference< XChangesBatch > xChanges( xAllSettings, UNO_QUERY_THROW );
xChanges->commitChanges();
}
// actually read and forward the settings
Reference< XNameAccess > xLoggerSettings( xAllSettings->getByName( sLoggerName ), UNO_QUERY_THROW );
// the log level
sal_Int32 nLogLevel( LogLevel::OFF );
OSL_VERIFY( xLoggerSettings->getByName("LogLevel") >>= nLogLevel );
_rxLogger->setLevel( nLogLevel );
// the default handler, if any
Reference< XInterface > xUntyped( lcl_createInstanceFromSetting_throw( _rContext, _rxLogger, xLoggerSettings, "DefaultHandler", "HandlerSettings", &lcl_transformFileHandlerSettings_nothrow ) );
if ( !xUntyped.is() )
// no handler -> we're done
return;
Reference< XLogHandler > xHandler( xUntyped, UNO_QUERY_THROW );
_rxLogger->addLogHandler( xHandler );
// The newly created handler might have an own (default) level. Ensure that it uses
// the same level as the logger.
xHandler->setLevel( nLogLevel );
// the default formatter for the handler
xUntyped = lcl_createInstanceFromSetting_throw( _rContext, _rxLogger, xLoggerSettings, "DefaultFormatter", "FormatterSettings" );
if ( !xUntyped.is() )
// no formatter -> we're done
return;
Reference< XLogFormatter > xFormatter( xUntyped, UNO_QUERY_THROW );
xHandler->setFormatter( xFormatter );
// TODO: we could first create the formatter, then the handler. This would allow
// passing the formatter as value in the component context, so the handler would
// not create an own default formatter
}
catch( const Exception& )
{
DBG_UNHANDLED_EXCEPTION("extensions.logging");
}
}
} // namespace logging
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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