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libreoffice/connectivity/source/drivers/postgresql/pq_xcontainer.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

411 lines
12 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* Effective License of whole file:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Parts "Copyright by Sun Microsystems, Inc" prior to August 2011:
*
* The Contents of this file are made available subject to the terms of
* the GNU Lesser General Public License Version 2.1
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* Contributor(s): Joerg Budischewski
*
* All parts contributed on or after August 2011:
*
* 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/.
*
************************************************************************/
#include <com/sun/star/container/ElementExistException.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <comphelper/diagnose_ex.hxx>
#include <cppuhelper/implbase.hxx>
#include <o3tl/safeint.hxx>
#include <utility>
#include "pq_xcontainer.hxx"
#include "pq_statics.hxx"
#include "pq_tools.hxx"
using osl::MutexGuard;
using com::sun::star::beans::XPropertySet;
using com::sun::star::uno::Any;
using com::sun::star::uno::Type;
using com::sun::star::uno::XInterface;
using com::sun::star::uno::Reference;
using com::sun::star::uno::Sequence;
using com::sun::star::uno::RuntimeException;
using com::sun::star::container::NoSuchElementException;
using com::sun::star::container::XEnumeration;
using com::sun::star::container::XContainerListener;
using com::sun::star::container::ContainerEvent;
using com::sun::star::lang::IndexOutOfBoundsException;
using com::sun::star::lang::XEventListener;
namespace pq_sdbc_driver
{
namespace {
class ReplacedBroadcaster : public EventBroadcastHelper
{
ContainerEvent m_event;
public:
ReplacedBroadcaster(
const Reference< XInterface > & source,
const OUString & name,
const Any & newElement,
const OUString & oldElement ) :
m_event( source, Any( name ), newElement, Any(oldElement) )
{}
virtual void fire( XEventListener * listener ) const override
{
static_cast<XContainerListener*>(listener)->elementReplaced( m_event );
}
virtual Type getType() const override
{
return cppu::UnoType<XContainerListener>::get();
}
};
class InsertedBroadcaster : public EventBroadcastHelper
{
public:
ContainerEvent m_event;
InsertedBroadcaster(
const Reference< XInterface > & source,
const OUString & name,
const Any & newElement ) :
m_event( source, Any( name ), newElement, Any() )
{}
virtual void fire( XEventListener * listener ) const override
{
static_cast<XContainerListener*>(listener)->elementInserted( m_event );
}
virtual Type getType() const override
{
return cppu::UnoType<XContainerListener>::get();
}
};
class RemovedBroadcaster : public EventBroadcastHelper
{
public:
ContainerEvent m_event;
RemovedBroadcaster(
const Reference< XInterface > & source,
const OUString & name) :
m_event( source, Any( name ), Any(), Any() )
{}
virtual void fire( XEventListener * listener ) const override
{
static_cast<XContainerListener*>(listener)->elementRemoved( m_event );
}
virtual Type getType() const override
{
return cppu::UnoType<XContainerListener>::get();
}
};
}
Container::Container(
const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
css::uno::Reference< css::sdbc::XConnection > origin,
ConnectionSettings *pSettings,
OUString type)
: ContainerBase( refMutex->GetMutex() ),
m_xMutex( refMutex ),
m_pSettings( pSettings ),
m_origin(std::move( origin )),
m_type(std::move( type ))
{
}
Any Container::getByName( const OUString& aName )
{
String2IntMap::const_iterator ii = m_name2index.find( aName );
if( ii == m_name2index.end() )
{
throw NoSuchElementException(
"Element " + aName + " unknown in " + m_type + "-Container",
*this );
}
OSL_ASSERT( ii->second >= 0 && o3tl::make_unsigned(ii->second) < m_values.size() );
return m_values[ ii->second ];
}
Sequence< OUString > Container::getElementNames( )
{
Sequence< OUString > ret( m_values.size() );
auto retRange = asNonConstRange(ret);
for( const auto& [rName, rIndex] : m_name2index )
{
// give element names in index order !
retRange[rIndex] = rName;
}
return ret;
}
sal_Bool Container::hasByName( const OUString& aName )
{
return m_name2index.find( aName ) != m_name2index.end();
}
// Methods
Type Container::getElementType( )
{
return Type();
}
sal_Bool Container::hasElements( )
{
return ! m_name2index.empty();
}
Any Container::getByIndex( sal_Int32 Index )
{
if( Index < 0 || o3tl::make_unsigned(Index) >= m_values.size() )
{
throw IndexOutOfBoundsException(
"Index " + OUString::number( Index )
+ " out of range for " + m_type + "-Container, expected 0 <= x <= "
+ OUString::number(m_values.size() -1),
*this );
}
return m_values[Index];
}
sal_Int32 Container::getCount()
{
return m_values.size();
}
namespace {
class ContainerEnumeration : public ::cppu::WeakImplHelper< XEnumeration >
{
std::vector< css::uno::Any > m_vec;
sal_Int32 m_index;
public:
explicit ContainerEnumeration( std::vector< css::uno::Any >&& vec )
: m_vec( std::move(vec) ),
m_index( -1 )
{}
public:
// XEnumeration
virtual sal_Bool SAL_CALL hasMoreElements( ) override;
virtual css::uno::Any SAL_CALL nextElement( ) override;
};
}
sal_Bool ContainerEnumeration::hasMoreElements()
{
return static_cast<int>(m_vec.size()) > m_index +1;
}
css::uno::Any ContainerEnumeration::nextElement()
{
if( ! hasMoreElements() )
{
throw NoSuchElementException(
u"NoSuchElementException during enumeration"_ustr, *this );
}
m_index ++;
return m_vec[m_index];
}
Reference< XEnumeration > Container::createEnumeration( )
{
return new ContainerEnumeration( std::vector(m_values) );
}
void Container::addRefreshListener(
const css::uno::Reference< css::util::XRefreshListener >& l )
{
rBHelper.addListener( cppu::UnoType<decltype(l)>::get() , l );
}
void Container::removeRefreshListener(
const css::uno::Reference< css::util::XRefreshListener >& l )
{
rBHelper.removeListener( cppu::UnoType<decltype(l)>::get() , l );
}
void Container::disposing()
{
m_origin.clear();
}
void Container::rename( const OUString &oldName, const OUString &newName )
{
Any newValue;
{
osl::MutexGuard guard ( m_xMutex->GetMutex() );
String2IntMap::iterator ii = m_name2index.find( oldName );
if( ii != m_name2index.end() )
{
sal_Int32 nIndex = ii->second;
newValue = m_values[nIndex];
m_name2index.erase( ii );
m_name2index[ newName ] = nIndex;
}
}
fire( ReplacedBroadcaster( *this, newName, newValue, oldName ) );
fire( RefreshedBroadcaster( *this ) );
}
void Container::dropByName( const OUString& elementName )
{
osl::MutexGuard guard( m_xMutex->GetMutex() );
String2IntMap::const_iterator ii = m_name2index.find( elementName );
if( ii == m_name2index.end() )
{
throw css::container::NoSuchElementException(
"Column " + elementName + " is unknown in "
+ m_type + " container, so it can't be dropped",
*this );
}
dropByIndex( ii->second );
}
void Container::dropByIndex( sal_Int32 index )
{
osl::MutexGuard guard( m_xMutex->GetMutex() );
if( index < 0 || o3tl::make_unsigned(index) >=m_values.size() )
{
throw css::lang::IndexOutOfBoundsException(
"Index out of range (allowed 0 to "
+ OUString::number(m_values.size() -1)
+ ", got " + OUString::number( index )
+ ") in " + m_type,
*this );
}
OUString name;
String2IntMap::iterator ii = std::find_if(m_name2index.begin(), m_name2index.end(),
[&index](const String2IntMap::value_type& rEntry) { return rEntry.second == index; });
if (ii != m_name2index.end())
{
name = ii->first;
m_name2index.erase( ii );
}
for( int i = index +1 ; i < static_cast<int>(m_values.size()) ; i ++ )
{
m_values[i-1] = m_values[i];
// I know, this is expensive, but don't want to maintain another map ...
ii = std::find_if(m_name2index.begin(), m_name2index.end(),
[&i](const String2IntMap::value_type& rEntry) { return rEntry.second == i; });
if (ii != m_name2index.end())
{
ii->second = i-1;
}
}
m_values.resize( m_values.size() - 1 );
fire( RemovedBroadcaster( *this, name ) );
}
void Container::append(
const OUString & name,
const css::uno::Reference< css::beans::XPropertySet >& descriptor )
{
osl::MutexGuard guard( m_xMutex->GetMutex() );
if( hasByName( name ) )
{
throw css::container::ElementExistException(
"a " + m_type + " with name " + name + " already exists in this container",
*this );
}
int index = m_values.size();
m_values.emplace_back(descriptor);
m_name2index[name] = index;
fire( InsertedBroadcaster( *this, name, Any( descriptor ) ) );
}
void Container::appendByDescriptor(
const css::uno::Reference< css::beans::XPropertySet >& descriptor)
{
append( extractStringProperty( descriptor, getStatics().NAME ), descriptor );
}
void Container::addContainerListener(
const css::uno::Reference< css::container::XContainerListener >& l )
{
rBHelper.addListener( cppu::UnoType<decltype(l)>::get() , l );
}
void Container::removeContainerListener(
const css::uno::Reference< css::container::XContainerListener >& l )
{
rBHelper.removeListener( cppu::UnoType<decltype(l)>::get() , l );
}
void Container::fire( const EventBroadcastHelper &helper )
{
cppu::OInterfaceContainerHelper *container = rBHelper.getContainer( helper.getType() );
if( !container )
return;
cppu::OInterfaceIteratorHelper iterator( * container );
while( iterator.hasMoreElements() )
{
try
{
helper.fire( static_cast<XEventListener *>(iterator.next()) );
}
catch ( css::uno::RuntimeException & )
{
TOOLS_WARN_EXCEPTION( "connectivity.postgresql", "exception caught" );
// loose coupling, a runtime exception shall not break anything
// TODO: log away as warning !
}
catch( css::uno::Exception & )
{
TOOLS_WARN_EXCEPTION( "connectivity.postgresql", "exception from listener flying through" );
throw;
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */