Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 555 insertions, 0 deletions

diff --git a/ucb/source/cacher/cachedcontentresultsetstub.cxx b/ucb/source/cacher/cachedcontentresultsetstub.cxx
new file mode 100644
index 000000000..a84d8f98f
--- /dev/null
+++ b/ucb/source/cacher/cachedcontentresultsetstub.cxx
@@ -0,0 +1,555 @@
+/* -*- 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 "cachedcontentresultsetstub.hxx"
+#include <com/sun/star/sdbc/FetchDirection.hpp>
+#include <com/sun/star/sdbc/SQLException.hpp>
+#include <com/sun/star/ucb/FetchError.hpp>
+#include <osl/diagnose.h>
+#include <cppuhelper/queryinterface.hxx>
+#include <ucbhelper/macros.hxx>
+
+using namespace com::sun::star::beans;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::sdbc;
+using namespace com::sun::star::ucb;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::util;
+using namespace cppu;
+
+
+CachedContentResultSetStub::CachedContentResultSetStub( Reference< XResultSet > const & xOrigin )
+                : ContentResultSetWrapper( xOrigin )
+                , m_nColumnCount( 0 )
+                , m_bColumnCountCached( false )
+                , m_bNeedToPropagateFetchSize( true )
+                , m_bFirstFetchSizePropagationDone( false )
+                , m_nLastFetchSize( 1 )//this value is not important at all
+                , m_bLastFetchDirection( true )//this value is not important at all
+                , m_aPropertyNameForFetchSize( OUString("FetchSize") )
+                , m_aPropertyNameForFetchDirection( OUString("FetchDirection") )
+{
+    impl_init();
+}
+
+CachedContentResultSetStub::~CachedContentResultSetStub()
+{
+    impl_deinit();
+}
+
+
+// XInterface methods.
+void SAL_CALL CachedContentResultSetStub::acquire()
+    noexcept
+{
+    OWeakObject::acquire();
+}
+
+void SAL_CALL CachedContentResultSetStub::release()
+    noexcept
+{
+    OWeakObject::release();
+}
+
+Any SAL_CALL CachedContentResultSetStub
+    ::queryInterface( const Type&  rType )
+{
+    //list all interfaces inclusive baseclasses of interfaces
+
+    Any aRet = ContentResultSetWrapper::queryInterface( rType );
+    if( aRet.hasValue() )
+        return aRet;
+
+    aRet = cppu::queryInterface( rType
+                , static_cast< XTypeProvider* >( this )
+                , static_cast< XServiceInfo* >( this )
+                , static_cast< XFetchProvider* >( this )
+                , static_cast< XFetchProviderForContentAccess* >( this )
+                );
+
+    return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
+}
+
+
+// own methods.  ( inherited )
+
+
+//virtual
+void CachedContentResultSetStub
+    ::impl_propertyChange( const PropertyChangeEvent& rEvt )
+{
+    impl_EnsureNotDisposed();
+
+    //don't notify events on fetchsize and fetchdirection to the above CachedContentResultSet
+    //because it will ignore them anyway and we can save this remote calls
+    if(    rEvt.PropertyName == m_aPropertyNameForFetchSize
+        || rEvt.PropertyName == m_aPropertyNameForFetchDirection )
+        return;
+
+    PropertyChangeEvent aEvt( rEvt );
+    aEvt.Source = static_cast< XPropertySet * >( this );
+    aEvt.Further = false;
+
+    impl_notifyPropertyChangeListeners( aEvt );
+}
+
+
+//virtual
+void CachedContentResultSetStub
+    ::impl_vetoableChange( const PropertyChangeEvent& rEvt )
+{
+    impl_EnsureNotDisposed();
+
+    //don't notify events on fetchsize and fetchdirection to the above CachedContentResultSet
+    //because it will ignore them anyway and we can save this remote calls
+    if(    rEvt.PropertyName == m_aPropertyNameForFetchSize
+        || rEvt.PropertyName == m_aPropertyNameForFetchDirection )
+        return;
+
+    PropertyChangeEvent aEvt( rEvt );
+    aEvt.Source = static_cast< XPropertySet * >( this );
+    aEvt.Further = false;
+
+    impl_notifyVetoableChangeListeners( aEvt );
+}
+
+
+// XTypeProvider methods.
+
+
+XTYPEPROVIDER_COMMON_IMPL( CachedContentResultSetStub )
+//list all interfaces exclusive baseclasses
+Sequence< Type > SAL_CALL CachedContentResultSetStub
+    ::getTypes()
+{
+    static Sequence<Type> ourTypes(
+                {   CPPU_TYPE_REF( XTypeProvider ),
+                    CPPU_TYPE_REF( XServiceInfo ),
+                    CPPU_TYPE_REF( XComponent ),
+                    CPPU_TYPE_REF( XCloseable ),
+                    CPPU_TYPE_REF( XResultSetMetaDataSupplier ),
+                    CPPU_TYPE_REF( XPropertySet ),
+                    CPPU_TYPE_REF( XPropertyChangeListener ),
+                    CPPU_TYPE_REF( XVetoableChangeListener ),
+                    CPPU_TYPE_REF( XResultSet ),
+                    CPPU_TYPE_REF( XContentAccess ),
+                    CPPU_TYPE_REF( XRow ),
+                    CPPU_TYPE_REF( XFetchProvider ),
+                    CPPU_TYPE_REF( XFetchProviderForContentAccess ) } );
+
+    return ourTypes;
+}
+
+
+// XServiceInfo methods.
+
+OUString SAL_CALL CachedContentResultSetStub::getImplementationName()
+{
+    return "com.sun.star.comp.ucb.CachedContentResultSetStub";
+}
+
+sal_Bool SAL_CALL CachedContentResultSetStub::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService( this, ServiceName );
+}
+
+css::uno::Sequence< OUString > SAL_CALL CachedContentResultSetStub::getSupportedServiceNames()
+{
+    return { "com.sun.star.ucb.CachedContentResultSetStub" };
+}
+
+
+
+// XFetchProvider methods.
+
+
+FetchResult CachedContentResultSetStub::impl_fetchHelper(
+        sal_Int32 nRowStartPosition, sal_Int32 nRowCount, bool bDirection,
+        std::function<void( css::uno::Any& rRowContent)> impl_loadRow)
+{
+    impl_EnsureNotDisposed();
+    if( !m_xResultSetOrigin.is() )
+    {
+        OSL_FAIL( "broadcaster was disposed already" );
+        throw RuntimeException();
+    }
+    impl_propagateFetchSizeAndDirection( nRowCount, bDirection );
+    FetchResult aRet;
+    aRet.StartIndex = nRowStartPosition;
+    aRet.Orientation = bDirection;
+    aRet.FetchError = FetchError::SUCCESS; /*ENDOFDATA, EXCEPTION*/
+    sal_Int32 nOldOriginal_Pos = m_xResultSetOrigin->getRow();
+    if( impl_isForwardOnly() )
+    {
+        if( nOldOriginal_Pos != nRowStartPosition )
+        {
+            /*@todo*/
+            aRet.FetchError = FetchError::EXCEPTION;
+            return aRet;
+        }
+        if( nRowCount != 1 )
+            aRet.FetchError = FetchError::EXCEPTION;
+
+        aRet.Rows.realloc( 1 );
+
+        try
+        {
+            impl_loadRow( aRet.Rows.getArray()[0] );
+        }
+        catch( SQLException& )
+        {
+            aRet.Rows.realloc( 0 );
+            aRet.FetchError = FetchError::EXCEPTION;
+            return aRet;
+        }
+        return aRet;
+    }
+    aRet.Rows.realloc( nRowCount );
+    auto pRows = aRet.Rows.getArray();
+    bool bOldOriginal_AfterLast = false;
+    if( !nOldOriginal_Pos )
+        bOldOriginal_AfterLast = m_xResultSetOrigin->isAfterLast();
+    sal_Int32 nN = 1;
+    try
+    {
+        bool bValidNewPos = false;
+        try
+        {
+            /*if( nOldOriginal_Pos != nRowStartPosition )*/
+            bValidNewPos = m_xResultSetOrigin->absolute( nRowStartPosition );
+        }
+        catch( SQLException& )
+        {
+            aRet.Rows.realloc( 0 );
+            aRet.FetchError = FetchError::EXCEPTION;
+            return aRet;
+        }
+        if( !bValidNewPos )
+        {
+            aRet.Rows.realloc( 0 );
+            aRet.FetchError = FetchError::EXCEPTION;
+
+            /*restore old position*/
+            if( nOldOriginal_Pos )
+                m_xResultSetOrigin->absolute( nOldOriginal_Pos );
+            else if( bOldOriginal_AfterLast )
+                m_xResultSetOrigin->afterLast();
+            else
+                m_xResultSetOrigin->beforeFirst();
+
+            return aRet;
+        }
+        for( ; nN <= nRowCount; )
+        {
+            impl_loadRow( pRows[nN-1] );
+            nN++;
+            if( nN <= nRowCount )
+            {
+                if( bDirection )
+                {
+                    if( !m_xResultSetOrigin->next() )
+                    {
+                        aRet.Rows.realloc( nN-1 );
+                        aRet.FetchError = FetchError::ENDOFDATA;
+                        break;
+                    }
+                }
+                else
+                {
+                    if( !m_xResultSetOrigin->previous() )
+                    {
+                        aRet.Rows.realloc( nN-1 );
+                        aRet.FetchError = FetchError::ENDOFDATA;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+    catch( SQLException& )
+    {
+        aRet.Rows.realloc( nN-1 );
+        aRet.FetchError = FetchError::EXCEPTION;
+    }
+    /*restore old position*/
+    if( nOldOriginal_Pos )
+        m_xResultSetOrigin->absolute( nOldOriginal_Pos );
+    else if( bOldOriginal_AfterLast )
+        m_xResultSetOrigin->afterLast();
+    else
+        m_xResultSetOrigin->beforeFirst();
+    return aRet;
+}
+
+FetchResult SAL_CALL CachedContentResultSetStub
+    ::fetch( sal_Int32 nRowStartPosition
+    , sal_Int32 nRowCount, sal_Bool bDirection )
+{
+    impl_init_xRowOrigin();
+    return impl_fetchHelper( nRowStartPosition, nRowCount, bDirection,
+        [&](css::uno::Any& rRowContent)
+        { return impl_getCurrentRowContent(rRowContent, m_xRowOrigin); });
+}
+
+sal_Int32 CachedContentResultSetStub
+    ::impl_getColumnCount()
+{
+    sal_Int32 nCount;
+    bool bCached;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        nCount = m_nColumnCount;
+        bCached = m_bColumnCountCached;
+    }
+    if( !bCached )
+    {
+        try
+        {
+            Reference< XResultSetMetaData > xMetaData = getMetaData();
+            if( xMetaData.is() )
+                nCount = xMetaData->getColumnCount();
+        }
+        catch( SQLException& )
+        {
+            OSL_FAIL( "couldn't determine the column count" );
+            nCount = 0;
+        }
+    }
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+    m_nColumnCount = nCount;
+    m_bColumnCountCached = true;
+    return m_nColumnCount;
+}
+
+void CachedContentResultSetStub
+    ::impl_getCurrentRowContent( Any& rRowContent
+        , const Reference< XRow >& xRow )
+{
+    sal_Int32 nCount = impl_getColumnCount();
+
+    Sequence< Any > aContent( nCount );
+    auto aContentRange = asNonConstRange(aContent);
+    for( sal_Int32 nN = 1; nN <= nCount; nN++ )
+    {
+        aContentRange[nN-1] = xRow->getObject( nN, nullptr );
+    }
+
+    rRowContent <<= aContent;
+}
+
+void CachedContentResultSetStub
+    ::impl_propagateFetchSizeAndDirection( sal_Int32 nFetchSize, bool bFetchDirection )
+{
+    //this is done only for the case, that there is another CachedContentResultSet in the chain of underlying ResultSets
+
+    //we do not propagate the property 'FetchSize' or 'FetchDirection' via 'setPropertyValue' from the above CachedContentResultSet to save remote calls
+
+    //if the underlying ResultSet has a property FetchSize and FetchDirection,
+    //we will set these properties, if the new given parameters are different from the last ones
+
+    if( !m_bNeedToPropagateFetchSize )
+        return;
+
+    bool bNeedAction;
+    sal_Int32 nLastSize;
+    bool bLastDirection;
+    bool bFirstPropagationDone;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        bNeedAction             = m_bNeedToPropagateFetchSize;
+        nLastSize               = m_nLastFetchSize;
+        bLastDirection          = m_bLastFetchDirection;
+        bFirstPropagationDone   = m_bFirstFetchSizePropagationDone;
+    }
+    if( !bNeedAction )
+        return;
+
+    if( nLastSize == nFetchSize
+        && bLastDirection == bFetchDirection
+        && bFirstPropagationDone )
+        return;
+
+    if(!bFirstPropagationDone)
+    {
+        //check whether the properties 'FetchSize' and 'FetchDirection' do exist
+
+        Reference< XPropertySetInfo > xPropertySetInfo = getPropertySetInfo();
+        bool bHasSize = xPropertySetInfo->hasPropertyByName( m_aPropertyNameForFetchSize );
+        bool bHasDirection = xPropertySetInfo->hasPropertyByName( m_aPropertyNameForFetchDirection );
+
+        if(!bHasSize || !bHasDirection)
+        {
+            osl::Guard< osl::Mutex > aGuard( m_aMutex );
+            m_bNeedToPropagateFetchSize = false;
+            return;
+        }
+    }
+
+    bool bSetSize       = ( nLastSize       !=nFetchSize        ) || !bFirstPropagationDone;
+    bool bSetDirection  = ( bLastDirection  !=bFetchDirection   ) || !bFirstPropagationDone;
+
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        m_bFirstFetchSizePropagationDone = true;
+        m_nLastFetchSize        = nFetchSize;
+        m_bLastFetchDirection   = bFetchDirection;
+    }
+
+    if( bSetSize )
+    {
+        Any aValue;
+        aValue <<= nFetchSize;
+        try
+        {
+            setPropertyValue( m_aPropertyNameForFetchSize, aValue );
+        }
+        catch( css::uno::Exception& ) {}
+    }
+    if( !bSetDirection )
+        return;
+
+    sal_Int32 nFetchDirection = FetchDirection::FORWARD;
+    if( !bFetchDirection )
+        nFetchDirection = FetchDirection::REVERSE;
+    Any aValue;
+    aValue <<= nFetchDirection;
+    try
+    {
+        setPropertyValue( m_aPropertyNameForFetchDirection, aValue );
+    }
+    catch( css::uno::Exception& ) {}
+}
+
+
+// XFetchProviderForContentAccess methods.
+
+
+void CachedContentResultSetStub
+    ::impl_getCurrentContentIdentifierString( Any& rAny
+        , const Reference< XContentAccess >& xContentAccess )
+{
+     rAny <<= xContentAccess->queryContentIdentifierString();
+}
+
+void CachedContentResultSetStub
+    ::impl_getCurrentContentIdentifier( Any& rAny
+        , const Reference< XContentAccess >& xContentAccess )
+{
+     rAny <<= xContentAccess->queryContentIdentifier();
+}
+
+void CachedContentResultSetStub
+    ::impl_getCurrentContent( Any& rAny
+        , const Reference< XContentAccess >& xContentAccess )
+{
+     rAny <<= xContentAccess->queryContent();
+}
+
+//virtual
+FetchResult SAL_CALL CachedContentResultSetStub
+    ::fetchContentIdentifierStrings( sal_Int32 nRowStartPosition
+        , sal_Int32 nRowCount, sal_Bool bDirection )
+{
+    impl_init_xContentAccessOrigin();
+    return impl_fetchHelper( nRowStartPosition, nRowCount, bDirection,
+        [&](css::uno::Any& rRowContent)
+        { return impl_getCurrentContentIdentifierString(rRowContent, m_xContentAccessOrigin); });
+}
+
+//virtual
+FetchResult SAL_CALL CachedContentResultSetStub
+    ::fetchContentIdentifiers( sal_Int32 nRowStartPosition
+        , sal_Int32 nRowCount, sal_Bool bDirection )
+{
+    impl_init_xContentAccessOrigin();
+    return impl_fetchHelper( nRowStartPosition, nRowCount, bDirection,
+        [&](css::uno::Any& rRowContent)
+        { return impl_getCurrentContentIdentifier(rRowContent, m_xContentAccessOrigin); });
+}
+
+//virtual
+FetchResult SAL_CALL CachedContentResultSetStub
+    ::fetchContents( sal_Int32 nRowStartPosition
+        , sal_Int32 nRowCount, sal_Bool bDirection )
+{
+    impl_init_xContentAccessOrigin();
+    return impl_fetchHelper( nRowStartPosition, nRowCount, bDirection,
+        [&](css::uno::Any& rRowContent)
+        { return impl_getCurrentContent(rRowContent, m_xContentAccessOrigin); });
+}
+
+
+
+
+CachedContentResultSetStubFactory::CachedContentResultSetStubFactory()
+{
+}
+
+CachedContentResultSetStubFactory::~CachedContentResultSetStubFactory()
+{
+}
+
+
+// CachedContentResultSetStubFactory XServiceInfo methods.
+
+OUString SAL_CALL CachedContentResultSetStubFactory::getImplementationName()
+{
+    return "com.sun.star.comp.ucb.CachedContentResultSetStubFactory";
+}
+sal_Bool SAL_CALL CachedContentResultSetStubFactory::supportsService( const OUString& ServiceName )
+{
+    return cppu::supportsService( this, ServiceName );
+}
+css::uno::Sequence< OUString > SAL_CALL CachedContentResultSetStubFactory::getSupportedServiceNames()
+{
+    return { "com.sun.star.ucb.CachedContentResultSetStubFactory" };
+}
+
+// Service factory implementation.
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+ucb_CachedContentResultSetStubFactory_get_implementation(
+    css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new CachedContentResultSetStubFactory());
+}
+
+
+
+
+// CachedContentResultSetStubFactory XCachedContentResultSetStubFactory methods.
+
+
+    //virtual
+Reference< XResultSet > SAL_CALL CachedContentResultSetStubFactory
+    ::createCachedContentResultSetStub(
+            const Reference< XResultSet > & xSource )
+{
+    if( xSource.is() )
+    {
+        Reference< XResultSet > xRet = new CachedContentResultSetStub( xSource );
+        return xRet;
+    }
+    return nullptr;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */