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, 488 insertions, 0 deletions

diff --git a/ucb/source/cacher/dynamicresultsetwrapper.cxx b/ucb/source/cacher/dynamicresultsetwrapper.cxx
new file mode 100644
index 000000000..fb37a5fa6
--- /dev/null
+++ b/ucb/source/cacher/dynamicresultsetwrapper.cxx
@@ -0,0 +1,488 @@
+/* -*- 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 "dynamicresultsetwrapper.hxx"
+#include <cppuhelper/queryinterface.hxx>
+#include <osl/diagnose.h>
+#include <com/sun/star/ucb/AlreadyInitializedException.hpp>
+#include <com/sun/star/ucb/ListActionType.hpp>
+#include <com/sun/star/ucb/ListenerAlreadySetException.hpp>
+#include <com/sun/star/ucb/ServiceNotFoundException.hpp>
+#include <com/sun/star/ucb/WelcomeDynamicResultSetStruct.hpp>
+#include <com/sun/star/ucb/CachedDynamicResultSetStubFactory.hpp>
+
+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 comphelper;
+
+
+
+
+DynamicResultSetWrapper::DynamicResultSetWrapper(
+                    Reference< XDynamicResultSet > const & xOrigin
+                    , const Reference< XComponentContext > & rxContext )
+
+                : m_bDisposed( false )
+                , m_bInDispose( false )
+                , m_xContext( rxContext )
+                , m_bStatic( false )
+                , m_bGotWelcome( false )
+                , m_xSource( xOrigin )
+            //  , m_xSourceResultCurrent( NULL )
+            //  , m_bUseOne( NULL )
+{
+    m_xMyListenerImpl = new DynamicResultSetWrapperListener( this );
+    //call impl_init() at the end of constructor of derived class
+};
+
+void DynamicResultSetWrapper::impl_init()
+{
+    //call this at the end of constructor of derived class
+
+
+    Reference< XDynamicResultSet > xSource;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        xSource = m_xSource;
+        m_xSource = nullptr;
+    }
+    if( xSource.is() )
+        setSource( xSource );
+}
+
+DynamicResultSetWrapper::~DynamicResultSetWrapper()
+{
+    //call impl_deinit() at start of destructor of derived class
+};
+
+void DynamicResultSetWrapper::impl_deinit()
+{
+    //call this at start of destructor of derived class
+
+    m_xMyListenerImpl->impl_OwnerDies();
+}
+
+void DynamicResultSetWrapper::impl_EnsureNotDisposed()
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+    if( m_bDisposed )
+        throw DisposedException();
+}
+
+//virtual
+void DynamicResultSetWrapper::impl_InitResultSetOne( const Reference< XResultSet >& xResultSet )
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+    OSL_ENSURE( !m_xSourceResultOne.is(), "Source ResultSet One is set already" );
+    m_xSourceResultOne = xResultSet;
+    m_xMyResultOne = xResultSet;
+}
+
+//virtual
+void DynamicResultSetWrapper::impl_InitResultSetTwo( const Reference< XResultSet >& xResultSet )
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+    OSL_ENSURE( !m_xSourceResultTwo.is(), "Source ResultSet Two is set already" );
+    m_xSourceResultTwo = xResultSet;
+    m_xMyResultTwo = xResultSet;
+}
+
+// XInterface methods.
+css::uno::Any SAL_CALL DynamicResultSetWrapper::queryInterface( const css::uno::Type & rType )
+{
+    //list all interfaces inclusive baseclasses of interfaces
+    css::uno::Any aRet = cppu::queryInterface( rType,
+                                               static_cast< XComponent* >(this), //base of XDynamicResultSet
+                                               static_cast< XDynamicResultSet* >(this),
+                                               static_cast< XSourceInitialization* >(this)
+                                               );
+    return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
+}
+
+// XComponent methods.
+
+// virtual
+void SAL_CALL DynamicResultSetWrapper::dispose()
+{
+    impl_EnsureNotDisposed();
+
+    Reference< XComponent > xSourceComponent;
+    {
+        osl::ClearableGuard< osl::Mutex > aGuard( m_aMutex );
+        if( m_bInDispose || m_bDisposed )
+            return;
+        m_bInDispose = true;
+
+        xSourceComponent = m_xSource;
+
+        if( m_pDisposeEventListeners && m_pDisposeEventListeners->getLength() )
+        {
+            EventObject aEvt;
+            aEvt.Source = static_cast< XComponent * >( this );
+
+            aGuard.clear();
+            m_pDisposeEventListeners->disposeAndClear( aEvt );
+        }
+    }
+
+    /* //@todo ?? ( only if java collection needs to long )
+    if( xSourceComponent.is() )
+        xSourceComponent->dispose();
+    */
+
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+    m_bDisposed = true;
+    m_bInDispose = false;
+}
+
+
+// virtual
+void SAL_CALL DynamicResultSetWrapper::addEventListener( const Reference< XEventListener >& Listener )
+{
+    impl_EnsureNotDisposed();
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    if ( !m_pDisposeEventListeners )
+        m_pDisposeEventListeners.reset(
+                    new OInterfaceContainerHelper3<XEventListener>( m_aContainerMutex ) );
+
+    m_pDisposeEventListeners->addInterface( Listener );
+}
+
+
+// virtual
+void SAL_CALL DynamicResultSetWrapper::removeEventListener( const Reference< XEventListener >& Listener )
+{
+    impl_EnsureNotDisposed();
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    if ( m_pDisposeEventListeners )
+        m_pDisposeEventListeners->removeInterface( Listener );
+}
+
+
+// own methods
+
+
+//virtual
+void DynamicResultSetWrapper::impl_disposing( const EventObject& )
+{
+    impl_EnsureNotDisposed();
+
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    if( !m_xSource.is() )
+        return;
+
+    //release all references to the broadcaster:
+    m_xSource.clear();
+    m_xSourceResultOne.clear();//?? or only when not static??
+    m_xSourceResultTwo.clear();//??
+    //@todo m_xMyResultOne.clear(); ???
+    //@todo m_xMyResultTwo.clear(); ???
+}
+
+//virtual
+void DynamicResultSetWrapper::impl_notify( const ListEvent& Changes )
+{
+    impl_EnsureNotDisposed();
+    //@todo
+    /*
+    <p>The Listener is allowed to blockade this call, until he really want to go
+    to the new version. The only situation, where the listener has to return the
+    update call at once is, while he disposes his broadcaster or while he is
+    removing himself as listener (otherwise you deadlock)!!!
+    */
+    // handle the actions in the list
+
+    ListEvent aNewEvent;
+    aNewEvent.Source = static_cast< XDynamicResultSet * >( this );
+    aNewEvent.Changes = Changes.Changes;
+
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        for( ListAction& rAction : asNonConstRange(aNewEvent.Changes) )
+        {
+            if (m_bGotWelcome)
+                break;
+
+            switch( rAction.ListActionType )
+            {
+                case ListActionType::WELCOME:
+                {
+                    WelcomeDynamicResultSetStruct aWelcome;
+                    if( rAction.ActionInfo >>= aWelcome )
+                    {
+                        impl_InitResultSetOne( aWelcome.Old );
+                        impl_InitResultSetTwo( aWelcome.New );
+                        m_bGotWelcome = true;
+
+                        aWelcome.Old = m_xMyResultOne;
+                        aWelcome.New = m_xMyResultTwo;
+
+                        rAction.ActionInfo <<= aWelcome;
+                    }
+                    else
+                    {
+                        OSL_FAIL( "ListActionType was WELCOME but ActionInfo didn't contain a WelcomeDynamicResultSetStruct" );
+                        //throw RuntimeException();
+                    }
+                    break;
+                }
+            }
+        }
+        OSL_ENSURE( m_bGotWelcome, "first notification was without WELCOME" );
+    }
+
+    if( !m_xListener.is() )
+        m_aListenerSet.wait();
+    m_xListener->notify( aNewEvent );
+
+    /*
+    m_bUseOne = !m_bUseOne;
+    if( m_bUseOne )
+        m_xSourceResultCurrent = m_xSourceResultOne;
+    else
+        m_xSourceResultCurrent = m_xSourceResultTwo;
+    */
+}
+
+
+// XSourceInitialization
+
+//virtual
+void SAL_CALL DynamicResultSetWrapper::setSource( const Reference< XInterface > & Source )
+{
+    impl_EnsureNotDisposed();
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        if( m_xSource.is() )
+        {
+            throw AlreadyInitializedException();
+        }
+    }
+
+    Reference< XDynamicResultSet > xSourceDynamic( Source, UNO_QUERY );
+    OSL_ENSURE( xSourceDynamic.is(),
+        "the given source is not of required type XDynamicResultSet" );
+
+    Reference< XDynamicResultSetListener > xListener;
+    Reference< XDynamicResultSetListener > xMyListenerImpl;
+
+    bool bStatic = false;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        m_xSource = xSourceDynamic;
+        xListener = m_xListener;
+        bStatic = m_bStatic;
+        xMyListenerImpl = m_xMyListenerImpl.get();
+    }
+    if( xListener.is() )
+        xSourceDynamic->setListener( m_xMyListenerImpl );
+    else if( bStatic )
+    {
+        Reference< XComponent > xSourceComponent( Source, UNO_QUERY );
+        xSourceComponent->addEventListener( xMyListenerImpl );
+    }
+    m_aSourceSet.set();
+}
+
+
+// XDynamicResultSet
+
+//virtual
+Reference< XResultSet > SAL_CALL DynamicResultSetWrapper::getStaticResultSet()
+{
+    impl_EnsureNotDisposed();
+
+    Reference< XDynamicResultSet > xSource;
+    Reference< XEventListener > xMyListenerImpl;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        if( m_xListener.is() )
+            throw ListenerAlreadySetException();
+
+        xSource = m_xSource;
+        m_bStatic = true;
+        xMyListenerImpl = m_xMyListenerImpl.get();
+    }
+
+    if( xSource.is() )
+    {
+        xSource->addEventListener( xMyListenerImpl );
+    }
+    if( !xSource.is() )
+        m_aSourceSet.wait();
+
+
+    Reference< XResultSet > xResultSet = xSource->getStaticResultSet();
+    impl_InitResultSetOne( xResultSet );
+    return m_xMyResultOne;
+}
+
+//virtual
+void SAL_CALL DynamicResultSetWrapper::setListener( const Reference< XDynamicResultSetListener > & Listener )
+{
+    impl_EnsureNotDisposed();
+
+    Reference< XDynamicResultSet > xSource;
+    Reference< XDynamicResultSetListener > xMyListenerImpl;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        if( m_xListener.is() )
+            throw ListenerAlreadySetException();
+        if( m_bStatic )
+            throw ListenerAlreadySetException();
+
+        m_xListener = Listener;
+        addEventListener( Listener );
+
+        xSource = m_xSource;
+        xMyListenerImpl = m_xMyListenerImpl.get();
+    }
+    if ( xSource.is() )
+        xSource->setListener( xMyListenerImpl );
+
+    m_aListenerSet.set();
+}
+
+//virtual
+void SAL_CALL DynamicResultSetWrapper::connectToCache( const Reference< XDynamicResultSet > & xCache )
+{
+    impl_EnsureNotDisposed();
+
+    if( m_xListener.is() )
+        throw ListenerAlreadySetException();
+    if( m_bStatic )
+        throw ListenerAlreadySetException();
+
+    Reference< XSourceInitialization > xTarget( xCache, UNO_QUERY );
+    OSL_ENSURE( xTarget.is(), "The given Target doesn't have the required interface 'XSourceInitialization'" );
+    if( xTarget.is() && m_xContext.is() )
+    {
+        //@todo m_aSourceSet.wait();?
+
+        Reference< XCachedDynamicResultSetStubFactory > xStubFactory;
+        try
+        {
+            xStubFactory = CachedDynamicResultSetStubFactory::create( m_xContext );
+        }
+        catch ( Exception const & )
+        {
+        }
+
+        if( xStubFactory.is() )
+        {
+            xStubFactory->connectToCache(
+                  this, xCache, Sequence< NumberedSortingInfo > (), nullptr );
+            return;
+        }
+    }
+    OSL_FAIL( "could not connect to cache" );
+    throw ServiceNotFoundException();
+}
+
+//virtual
+sal_Int16 SAL_CALL DynamicResultSetWrapper::getCapabilities()
+{
+    impl_EnsureNotDisposed();
+
+    m_aSourceSet.wait();
+    Reference< XDynamicResultSet > xSource;
+    {
+        osl::Guard< osl::Mutex > aGuard( m_aMutex );
+        xSource = m_xSource;
+    }
+    return xSource->getCapabilities();
+}
+
+
+
+
+DynamicResultSetWrapperListener::DynamicResultSetWrapperListener(
+        DynamicResultSetWrapper* pOwner )
+        : m_pOwner( pOwner )
+{
+
+}
+
+DynamicResultSetWrapperListener::~DynamicResultSetWrapperListener()
+{
+
+}
+
+
+// XInterface methods.
+
+void SAL_CALL DynamicResultSetWrapperListener::acquire()
+    noexcept
+{
+    OWeakObject::acquire();
+}
+
+void SAL_CALL DynamicResultSetWrapperListener::release()
+    noexcept
+{
+    OWeakObject::release();
+}
+
+css::uno::Any SAL_CALL DynamicResultSetWrapperListener::queryInterface( const css::uno::Type & rType )
+{
+    css::uno::Any aRet = cppu::queryInterface( rType,
+                                               static_cast< XDynamicResultSetListener* >(this),
+                                               static_cast< XEventListener* >(this)
+                                               );
+    return aRet.hasValue() ? aRet : OWeakObject::queryInterface( rType );
+}
+
+// XDynamicResultSetListener methods:
+
+//virtual
+void SAL_CALL DynamicResultSetWrapperListener::disposing( const EventObject& rEventObject )
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    if( m_pOwner )
+        m_pOwner->impl_disposing( rEventObject );
+}
+
+//virtual
+void SAL_CALL DynamicResultSetWrapperListener::notify( const ListEvent& Changes )
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    if( m_pOwner )
+        m_pOwner->impl_notify( Changes );
+}
+
+
+// own methods:
+
+
+void DynamicResultSetWrapperListener::impl_OwnerDies()
+{
+    osl::Guard< osl::Mutex > aGuard( m_aMutex );
+
+    m_pOwner = nullptr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */