AOO410/main/dbaccess/source/core/misc/sdbcoretools.cxx

/**************************************************************
 * 
 * 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_dbaccess.hxx"

#include "sdbcoretools.hxx"
#include "dbastrings.hrc"

/** === begin UNO includes === **/
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <com/sun/star/util/XModifiable.hpp>
#include <com/sun/star/sdb/XDocumentDataSource.hpp>
#include <com/sun/star/task/XInteractionRequestStringResolver.hpp>
#include <com/sun/star/embed/XTransactedObject.hpp>
#include <com/sun/star/embed/ElementModes.hpp>
/** === end UNO includes === **/

#include <tools/diagnose_ex.h>
#include <tools/debug.hxx>
#include <comphelper/componentcontext.hxx>
#include <comphelper/interaction.hxx>
#include <rtl/ref.hxx>
#include <rtl/ustrbuf.hxx>

//.........................................................................
namespace dbaccess
{
//.........................................................................

	using namespace ::com::sun::star::uno;
	using namespace ::com::sun::star::lang;
	using namespace ::com::sun::star::util;
	using namespace ::com::sun::star::io;
	using namespace ::com::sun::star::sdbc;
	using namespace ::com::sun::star::sdb;
	using namespace ::com::sun::star::beans;
	using namespace ::com::sun::star::task;
	using namespace ::com::sun::star::embed;
	using namespace ::com::sun::star::container;

    // =========================================================================
    // -------------------------------------------------------------------------
    void notifyDataSourceModified(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _rxObject,sal_Bool _bModified)
    {
        Reference< XInterface > xDs = getDataSource( _rxObject );
		Reference<XDocumentDataSource> xDocumentDataSource(xDs,UNO_QUERY);
		if ( xDocumentDataSource.is() )
            xDs = xDocumentDataSource->getDatabaseDocument();
        Reference< XModifiable > xModi( xDs, UNO_QUERY );
		if ( xModi.is() )
			xModi->setModified(_bModified);
    }

    // -------------------------------------------------------------------------
    Reference< XInterface > getDataSource( const Reference< XInterface >& _rxDependentObject )
    {
	    Reference< XInterface > xParent = _rxDependentObject;
	    Reference< XInterface > xReturn;
	    while( xParent.is() )
	    {
		    xReturn = xParent;
		    Reference<XChild> xChild(xParent,UNO_QUERY);
		    xParent.set(xChild.is() ? xChild->getParent() : Reference< XInterface >(),UNO_QUERY);
	    }
        return xReturn;
    }

// -----------------------------------------------------------------------------
    ::rtl::OUString extractExceptionMessage( const ::comphelper::ComponentContext& _rContext, const Any& _rError )
    {
        ::rtl::OUString sDisplayMessage;

        try
        {
            Reference< XInteractionRequestStringResolver > xStringResolver;
            if ( _rContext.createComponent( "com.sun.star.task.InteractionRequestStringResolver", xStringResolver ) )
            {
                ::rtl::Reference< ::comphelper::OInteractionRequest > pRequest( new ::comphelper::OInteractionRequest( _rError ) );
                ::rtl::Reference< ::comphelper::OInteractionApprove > pApprove( new ::comphelper::OInteractionApprove );
                pRequest->addContinuation( pApprove.get() );
                Optional< ::rtl::OUString > aMessage = xStringResolver->getStringFromInformationalRequest( pRequest.get() );
                if ( aMessage.IsPresent )
                    sDisplayMessage = aMessage.Value;
            }
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }

        if ( !sDisplayMessage.getLength() )
        {
            Exception aExcept;
            _rError >>= aExcept;

            ::rtl::OUStringBuffer aBuffer;
            aBuffer.append( _rError.getValueTypeName() );
            aBuffer.appendAscii( ":\n" );
            aBuffer.append( aExcept.Message );

            sDisplayMessage = aBuffer.makeStringAndClear();
        }

        return sDisplayMessage;
    }

    namespace tools { namespace stor {

    // -----------------------------------------------------------------------------
    bool storageIsWritable_nothrow( const Reference< XStorage >& _rxStorage )
    {
        if ( !_rxStorage.is() )
            return false;

        sal_Int32 nMode = ElementModes::READ;
        try
        {
            Reference< XPropertySet > xStorageProps( _rxStorage, UNO_QUERY_THROW );
			xStorageProps->getPropertyValue(
                ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "OpenMode" ) ) ) >>= nMode;
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
        return ( nMode & ElementModes::WRITE ) != 0;
    }

    // -----------------------------------------------------------------------------
    bool commitStorageIfWriteable( const Reference< XStorage >& _rxStorage ) SAL_THROW(( IOException, WrappedTargetException, RuntimeException ))
    {
        bool bSuccess = false;
	    Reference< XTransactedObject > xTrans( _rxStorage, UNO_QUERY );
	    if ( xTrans.is() )
        {
            if ( storageIsWritable_nothrow( _rxStorage ) )
                xTrans->commit();
            bSuccess = true;
        }
        return bSuccess;
    }

    } } // tools::stor

//.........................................................................
}	// namespace dbaccess
//.........................................................................