/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_forms.hxx"

#include "cachedrowset.hxx"
#include "services.hxx"
#include "frm_strings.hxx"

/** === begin UNO includes === **/
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/sdb/XQueriesSupplier.hpp>
#include <com/sun/star/sdbc/ResultSetType.hpp>
/** === end UNO includes === **/

#include <tools/diagnose_ex.h>

//........................................................................
namespace frm
{
//........................................................................

	/** === begin UNO using === **/
	using ::com::sun::star::uno::Reference;
	using ::com::sun::star::uno::UNO_QUERY;
	using ::com::sun::star::uno::UNO_QUERY_THROW;
	using ::com::sun::star::uno::UNO_SET_THROW;
	using ::com::sun::star::uno::Exception;
	using ::com::sun::star::uno::RuntimeException;
    using ::com::sun::star::sdbc::XConnection;
    using ::com::sun::star::lang::XComponent;
    using ::com::sun::star::beans::XPropertySet;
    using ::com::sun::star::uno::makeAny;
    using ::com::sun::star::sdbc::SQLException;
    using ::com::sun::star::uno::Any;
    using ::com::sun::star::sdb::XQueriesSupplier;
    using ::com::sun::star::container::XNameAccess;
    using ::com::sun::star::sdbc::XResultSet;
    using ::com::sun::star::sdbc::XStatement;
	/** === end UNO using === **/
    namespace ResultSetType = ::com::sun::star::sdbc::ResultSetType;

	//====================================================================
	//= CachedRowSet_Data
	//====================================================================
    struct CachedRowSet_Data
    {
        ::comphelper::ComponentContext  aContext;
        ::rtl::OUString                 sCommand;
        sal_Bool                        bEscapeProcessing;
        Reference< XConnection >        xConnection;

        bool                            bStatementDirty;

        CachedRowSet_Data( const ::comphelper::ComponentContext& _rContext )
            :aContext( _rContext )
            ,sCommand()
            ,bEscapeProcessing( sal_False )
            ,xConnection()
            ,bStatementDirty( true )
        {
        }
    };

	//====================================================================
	//= CachedRowSet
	//====================================================================
	//--------------------------------------------------------------------
    CachedRowSet::CachedRowSet( const ::comphelper::ComponentContext& _rContext )
        :m_pData( new CachedRowSet_Data( _rContext ) )
    {
    }

	//--------------------------------------------------------------------
    CachedRowSet::~CachedRowSet()
    {
        dispose();
    }

	//--------------------------------------------------------------------
    void CachedRowSet::setCommand( const ::rtl::OUString& _rCommand )
    {
        if ( m_pData->sCommand == _rCommand )
            return;

        m_pData->sCommand = _rCommand;
        m_pData->bStatementDirty = true;
    }

	//--------------------------------------------------------------------
    void CachedRowSet::setCommandFromQuery( const ::rtl::OUString& _rQueryName )
    {
        Reference< XQueriesSupplier > xSupplyQueries( m_pData->xConnection, UNO_QUERY_THROW );
        Reference< XNameAccess >      xQueries      ( xSupplyQueries->getQueries(), UNO_QUERY_THROW );
        Reference< XPropertySet >     xQuery        ( xQueries->getByName( _rQueryName ), UNO_QUERY_THROW );

        sal_Bool bEscapeProcessing( sal_False );
        OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_ESCAPE_PROCESSING ) >>= bEscapeProcessing );
        setEscapeProcessing( bEscapeProcessing );

        ::rtl::OUString sCommand;
        OSL_VERIFY( xQuery->getPropertyValue( PROPERTY_COMMAND ) >>= sCommand );
        setCommand( sCommand );
    }

	//--------------------------------------------------------------------
    void CachedRowSet::setEscapeProcessing ( const sal_Bool _bEscapeProcessing )
    {
        if ( m_pData->bEscapeProcessing == _bEscapeProcessing )
            return;

        m_pData->bEscapeProcessing = _bEscapeProcessing;
        m_pData->bStatementDirty = true;
    }

	//--------------------------------------------------------------------
    void CachedRowSet::setConnection( const Reference< XConnection >& _rxConnection )
    {
        if ( m_pData->xConnection == _rxConnection )
            return;

        m_pData->xConnection = _rxConnection;
        m_pData->bStatementDirty = true;
    }

	//--------------------------------------------------------------------
    Reference< XResultSet > CachedRowSet::execute()
    {
        Reference< XResultSet > xResult;
        try
        {
            OSL_PRECOND( m_pData->xConnection.is(), "CachedRowSet::execute: how am I expected to do this without a connection?" );
            if ( !m_pData->xConnection.is() )
                return xResult;

            Reference< XStatement > xStatement( m_pData->xConnection->createStatement(), UNO_SET_THROW );
            Reference< XPropertySet > xStatementProps( xStatement, UNO_QUERY_THROW );
            xStatementProps->setPropertyValue( PROPERTY_ESCAPE_PROCESSING, makeAny( m_pData->bEscapeProcessing ) );
            xStatementProps->setPropertyValue( PROPERTY_RESULTSET_TYPE, makeAny( ResultSetType::FORWARD_ONLY ) );

            xResult.set( xStatement->executeQuery( m_pData->sCommand ), UNO_SET_THROW );
            m_pData->bStatementDirty = false;
        }
        catch( const SQLException& )
        {
            throw;
        }
        catch( const Exception& )
        {
        	DBG_UNHANDLED_EXCEPTION();
        }
        return xResult;
    }

	//--------------------------------------------------------------------
    bool CachedRowSet::isDirty() const
    {
        return m_pData->bStatementDirty;
    }

	//--------------------------------------------------------------------
    void CachedRowSet::dispose()
    {
        try
        {
            m_pData.reset( new CachedRowSet_Data( m_pData->aContext ) );
        }
        catch( const Exception& )
        {
        	DBG_UNHANDLED_EXCEPTION();
        }
    }

//........................................................................
} // namespace frm
//........................................................................