summaryrefslogtreecommitdiffstats
path: root/extensions/source/logging/filehandler.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'extensions/source/logging/filehandler.cxx')
-rw-r--r--extensions/source/logging/filehandler.cxx359
1 files changed, 359 insertions, 0 deletions
diff --git a/extensions/source/logging/filehandler.cxx b/extensions/source/logging/filehandler.cxx
new file mode 100644
index 0000000000..8108f7c6ab
--- /dev/null
+++ b/extensions/source/logging/filehandler.cxx
@@ -0,0 +1,359 @@
+/* -*- 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 <sal/config.h>
+#include <sal/log.hxx>
+
+#include "methodguard.hxx"
+#include "loghandler.hxx"
+
+#include <com/sun/star/logging/XLogHandler.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+#include <com/sun/star/util/PathSubstitution.hpp>
+#include <com/sun/star/util/XStringSubstitution.hpp>
+
+#include <comphelper/diagnose_ex.hxx>
+
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <osl/file.hxx>
+
+#include <memory>
+
+namespace logging
+{
+ using ::com::sun::star::uno::Reference;
+ using ::com::sun::star::logging::LogRecord;
+ using ::com::sun::star::logging::XLogFormatter;
+ using ::com::sun::star::uno::Sequence;
+ using ::com::sun::star::uno::XInterface;
+ using ::com::sun::star::uno::XComponentContext;
+ using ::com::sun::star::logging::XLogHandler;
+ using ::com::sun::star::lang::XServiceInfo;
+ using ::com::sun::star::uno::Exception;
+ using ::com::sun::star::lang::IllegalArgumentException;
+ using ::com::sun::star::util::PathSubstitution;
+ using ::com::sun::star::util::XStringSubstitution;
+ using ::com::sun::star::beans::NamedValue;
+
+ typedef ::cppu::WeakComponentImplHelper < XLogHandler
+ , XServiceInfo
+ > FileHandler_Base;
+
+ namespace {
+
+ class FileHandler :public ::cppu::BaseMutex
+ ,public FileHandler_Base
+ {
+ private:
+ enum FileValidity
+ {
+ /// never attempted to open the file
+ eUnknown,
+ /// file is valid
+ eValid,
+ /// file is invalid
+ eInvalid
+ };
+
+ Reference<XComponentContext> m_xContext;
+ LogHandlerHelper m_aHandlerHelper;
+ OUString m_sFileURL;
+ std::unique_ptr< ::osl::File > m_pFile;
+ FileValidity m_eFileValidity;
+
+ public:
+ FileHandler(const css::uno::Reference<XComponentContext> &context,
+ const css::uno::Sequence<css::uno::Any> &arguments);
+ virtual ~FileHandler() override;
+
+ private:
+ // XLogHandler
+ virtual OUString SAL_CALL getEncoding() override;
+ virtual void SAL_CALL setEncoding( const OUString& _encoding ) override;
+ virtual Reference< XLogFormatter > SAL_CALL getFormatter() override;
+ virtual void SAL_CALL setFormatter( const Reference< XLogFormatter >& _formatter ) override;
+ virtual ::sal_Int32 SAL_CALL getLevel() override;
+ virtual void SAL_CALL setLevel( ::sal_Int32 _level ) override;
+ virtual void SAL_CALL flush( ) override;
+ virtual sal_Bool SAL_CALL publish( const LogRecord& Record ) override;
+
+ // XServiceInfo
+ virtual OUString SAL_CALL getImplementationName() override;
+ virtual sal_Bool SAL_CALL supportsService( const OUString& _rServiceName ) override;
+ virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+ // OComponentHelper
+ virtual void SAL_CALL disposing() override;
+
+ public:
+ typedef ComponentMethodGuard< FileHandler > MethodGuard;
+ void enterMethod( MethodGuard::Access );
+ void leaveMethod( MethodGuard::Access );
+
+ private:
+ /** prepares our output file for writing
+ */
+ bool impl_prepareFile_nothrow();
+
+ /// writes the given string to our file
+ void impl_writeString_nothrow( const OString& _rEntry );
+
+ /** does string substitution on a (usually externally provided) file url
+ */
+ void impl_doStringsubstitution_nothrow( OUString& _inout_rURL );
+ };
+
+ }
+
+ FileHandler::FileHandler(const css::uno::Reference<XComponentContext> &context,
+ const css::uno::Sequence<css::uno::Any> &arguments)
+ :FileHandler_Base( m_aMutex )
+ ,m_xContext( context )
+ ,m_aHandlerHelper( context, m_aMutex, rBHelper )
+ ,m_eFileValidity( eUnknown )
+ {
+ ::osl::MutexGuard aGuard( m_aMutex );
+
+ if ( arguments.getLength() != 1 )
+ throw IllegalArgumentException( OUString(), *this, 1 );
+
+ Sequence< NamedValue > aSettings;
+ if ( arguments[0] >>= m_sFileURL )
+ {
+ // create( [in] string URL );
+ impl_doStringsubstitution_nothrow( m_sFileURL );
+ }
+ else if ( arguments[0] >>= aSettings )
+ {
+ // createWithSettings( [in] sequence< css::beans::NamedValue > Settings )
+ ::comphelper::NamedValueCollection aTypedSettings( aSettings );
+ m_aHandlerHelper.initFromSettings( aTypedSettings );
+
+ if ( aTypedSettings.get_ensureType( "FileURL", m_sFileURL ) )
+ impl_doStringsubstitution_nothrow( m_sFileURL );
+ }
+ else
+ throw IllegalArgumentException( OUString(), *this, 1 );
+
+ m_aHandlerHelper.setIsInitialized();
+ }
+
+ FileHandler::~FileHandler()
+ {
+ if ( !rBHelper.bDisposed )
+ {
+ acquire();
+ dispose();
+ }
+ }
+
+
+ bool FileHandler::impl_prepareFile_nothrow()
+ {
+ if ( m_eFileValidity == eUnknown )
+ {
+ m_pFile.reset( new ::osl::File( m_sFileURL ) );
+ // check whether the log file already exists
+ ::osl::DirectoryItem aFileItem;
+ if (osl::FileBase::E_None == ::osl::DirectoryItem::get(m_sFileURL, aFileItem))
+ {
+ ::osl::FileStatus aStatus(osl_FileStatus_Mask_Validate);
+ if (::osl::FileBase::E_None == aFileItem.getFileStatus(aStatus))
+ ::osl::File::remove(m_sFileURL);
+ }
+
+ ::osl::FileBase::RC res = m_pFile->open( osl_File_OpenFlag_Write | osl_File_OpenFlag_Create );
+ m_eFileValidity = res == ::osl::FileBase::E_None
+ ? eValid
+ : eInvalid;
+ #if OSL_DEBUG_LEVEL > 0
+ if ( m_eFileValidity == eInvalid )
+ {
+ SAL_WARN( "extensions.logging", "FileHandler::impl_prepareFile_nothrow: could not open the designated log file:"
+ "\nURL: " << m_sFileURL
+ << "\nerror code: " << static_cast<sal_Int32>(res) );
+ }
+ #endif
+ if ( m_eFileValidity == eValid )
+ {
+ OString sHead;
+ if ( m_aHandlerHelper.getEncodedHead( sHead ) )
+ impl_writeString_nothrow( sHead );
+ }
+ }
+
+ return m_eFileValidity == eValid;
+ }
+
+
+ void FileHandler::impl_writeString_nothrow( const OString& _rEntry )
+ {
+ OSL_PRECOND(m_pFile, "FileHandler::impl_writeString_nothrow: no file!");
+
+ sal_uInt64 nBytesToWrite( _rEntry.getLength() );
+ sal_uInt64 nBytesWritten( 0 );
+ ::osl::FileBase::RC res =
+ m_pFile->write( _rEntry.getStr(), nBytesToWrite, nBytesWritten );
+ OSL_ENSURE( ( res == ::osl::FileBase::E_None ) && ( nBytesWritten == nBytesToWrite ),
+ "FileHandler::impl_writeString_nothrow: could not write the log entry!" );
+ }
+
+
+ void FileHandler::impl_doStringsubstitution_nothrow( OUString& _inout_rURL )
+ {
+ try
+ {
+ Reference< XStringSubstitution > xStringSubst(PathSubstitution::create(m_xContext));
+ _inout_rURL = xStringSubst->substituteVariables( _inout_rURL, true );
+ }
+ catch( const Exception& )
+ {
+ DBG_UNHANDLED_EXCEPTION("extensions.logging");
+ }
+ }
+
+
+ void SAL_CALL FileHandler::disposing()
+ {
+ if ( m_eFileValidity == eValid )
+ {
+ OString sTail;
+ if ( m_aHandlerHelper.getEncodedTail( sTail ) )
+ impl_writeString_nothrow( sTail );
+ }
+
+ m_pFile.reset();
+ m_aHandlerHelper.setFormatter( nullptr );
+ }
+
+
+ void FileHandler::enterMethod( MethodGuard::Access )
+ {
+ m_aHandlerHelper.enterMethod();
+ }
+
+
+ void FileHandler::leaveMethod( MethodGuard::Access )
+ {
+ m_aMutex.release();
+ }
+
+
+ OUString SAL_CALL FileHandler::getEncoding()
+ {
+ MethodGuard aGuard( *this );
+ OUString sEncoding;
+ OSL_VERIFY( m_aHandlerHelper.getEncoding( sEncoding ) );
+ return sEncoding;
+ }
+
+
+ void SAL_CALL FileHandler::setEncoding( const OUString& _rEncoding )
+ {
+ MethodGuard aGuard( *this );
+ OSL_VERIFY( m_aHandlerHelper.setEncoding( _rEncoding ) );
+ }
+
+
+ Reference< XLogFormatter > SAL_CALL FileHandler::getFormatter()
+ {
+ MethodGuard aGuard( *this );
+ return m_aHandlerHelper.getFormatter();
+ }
+
+
+ void SAL_CALL FileHandler::setFormatter( const Reference< XLogFormatter >& _rxFormatter )
+ {
+ MethodGuard aGuard( *this );
+ m_aHandlerHelper.setFormatter( _rxFormatter );
+ }
+
+
+ ::sal_Int32 SAL_CALL FileHandler::getLevel()
+ {
+ MethodGuard aGuard( *this );
+ return m_aHandlerHelper.getLevel();
+ }
+
+
+ void SAL_CALL FileHandler::setLevel( ::sal_Int32 _nLevel )
+ {
+ MethodGuard aGuard( *this );
+ m_aHandlerHelper.setLevel( _nLevel );
+ }
+
+
+ void SAL_CALL FileHandler::flush( )
+ {
+ MethodGuard aGuard( *this );
+ if (!m_pFile)
+ {
+ OSL_PRECOND(false, "FileHandler::flush: no file!");
+ return;
+ }
+ ::osl::FileBase::RC res = m_pFile->sync();
+ OSL_ENSURE(res == ::osl::FileBase::E_None, "FileHandler::flush: Could not sync logfile to filesystem.");
+ }
+
+
+ sal_Bool SAL_CALL FileHandler::publish( const LogRecord& _rRecord )
+ {
+ MethodGuard aGuard( *this );
+
+ if ( !impl_prepareFile_nothrow() )
+ return false;
+
+ OString sEntry;
+ if ( !m_aHandlerHelper.formatForPublishing( _rRecord, sEntry ) )
+ return false;
+
+ impl_writeString_nothrow( sEntry );
+ return true;
+ }
+
+ OUString SAL_CALL FileHandler::getImplementationName()
+ {
+ return "com.sun.star.comp.extensions.FileHandler";
+ }
+
+ sal_Bool SAL_CALL FileHandler::supportsService( const OUString& _rServiceName )
+ {
+ return cppu::supportsService(this, _rServiceName);
+ }
+
+ Sequence< OUString > SAL_CALL FileHandler::getSupportedServiceNames()
+ {
+ return { "com.sun.star.logging.FileHandler" };
+ }
+
+} // namespace logging
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
+com_sun_star_comp_extensions_FileHandler(
+ css::uno::XComponentContext *context,
+ css::uno::Sequence<css::uno::Any> const &arguments)
+{
+ return cppu::acquire(new logging::FileHandler(context, arguments));
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */