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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 "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;
+ {
+ std::unique_lock 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()
+{
+ std::unique_lock aGuard( m_aMutex );
+ if( m_bDisposed )
+ throw DisposedException();
+}
+
+//virtual
+void DynamicResultSetWrapper::impl_InitResultSetOne( const Reference< XResultSet >& xResultSet )
+{
+ std::unique_lock 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 )
+{
+ std::unique_lock 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();
+
+ std::unique_lock aGuard( m_aMutex );
+ Reference< XComponent > xSourceComponent;
+ if( m_bInDispose || m_bDisposed )
+ return;
+ m_bInDispose = true;
+
+ xSourceComponent = m_xSource;
+
+ if( m_aDisposeEventListeners.getLength(aGuard) )
+ {
+ EventObject aEvt;
+ aEvt.Source = static_cast< XComponent * >( this );
+ m_aDisposeEventListeners.disposeAndClear( aGuard, aEvt );
+ }
+
+ /* //@todo ?? ( only if java collection needs to long )
+ if( xSourceComponent.is() )
+ xSourceComponent->dispose();
+ */
+
+ m_bDisposed = true;
+ m_bInDispose = false;
+}
+
+
+// virtual
+void SAL_CALL DynamicResultSetWrapper::addEventListener( const Reference< XEventListener >& Listener )
+{
+ impl_EnsureNotDisposed();
+ std::unique_lock aGuard( m_aMutex );
+
+ m_aDisposeEventListeners.addInterface( aGuard, Listener );
+}
+
+
+// virtual
+void SAL_CALL DynamicResultSetWrapper::removeEventListener( const Reference< XEventListener >& Listener )
+{
+ impl_EnsureNotDisposed();
+ std::unique_lock aGuard( m_aMutex );
+
+ m_aDisposeEventListeners.removeInterface( aGuard, Listener );
+}
+
+
+// own methods
+
+
+//virtual
+void DynamicResultSetWrapper::impl_disposing( const EventObject& )
+{
+ impl_EnsureNotDisposed();
+
+ std::unique_lock 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;
+
+ {
+ std::unique_lock 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();
+ {
+ std::unique_lock 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;
+ {
+ std::unique_lock 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;
+ {
+ std::unique_lock 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;
+ {
+ std::unique_lock 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;
+ {
+ std::unique_lock 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 )
+{
+ std::unique_lock aGuard( m_aMutex );
+
+ if( m_pOwner )
+ m_pOwner->impl_disposing( rEventObject );
+}
+
+//virtual
+void SAL_CALL DynamicResultSetWrapperListener::notify( const ListEvent& Changes )
+{
+ std::unique_lock aGuard( m_aMutex );
+
+ if( m_pOwner )
+ m_pOwner->impl_notify( Changes );
+}
+
+
+// own methods:
+
+
+void DynamicResultSetWrapperListener::impl_OwnerDies()
+{
+ std::unique_lock aGuard( m_aMutex );
+
+ m_pOwner = nullptr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */