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path: root/ucb/source/ucp/odma/odma_datasupplier.cxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

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

/**************************************************************************
                                TODO
 **************************************************************************

 *************************************************************************/

#include <vector>
#include <ucbhelper/contentidentifier.hxx>
#include <ucbhelper/providerhelper.hxx>
#include "odma_datasupplier.hxx"
#include "odma_content.hxx"
#include "odma_contentprops.hxx"
#include "odma_provider.hxx"

using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::ucb;
using namespace com::sun::star::uno;
using namespace com::sun::star::sdbc;

using namespace odma;

namespace odma
{

//=========================================================================
//
// struct ResultListEntry.
//
//=========================================================================

struct ResultListEntry
{
    ::rtl::OUString					    aId;
    Reference< XContentIdentifier >     xId;
    Reference< XContent > 			    xContent;
    Reference< XRow > 				    xRow;
    ::rtl::Reference<ContentProperties>	rData;

    ResultListEntry( const ::rtl::Reference<ContentProperties>& rEntry ) : rData( rEntry ) {}
};

//=========================================================================
//
// ResultList.
//
//=========================================================================

typedef std::vector< ResultListEntry* > ResultList;

//=========================================================================
//
// struct DataSupplier_Impl.
//
//=========================================================================

struct DataSupplier_Impl
{
    osl::Mutex					      m_aMutex;
    ResultList					      m_aResults;
    rtl::Reference< Content >     	  m_xContent;
    Reference< XMultiServiceFactory > m_xSMgr;
// @@@ The data source and an iterator for it
//	Entry 		 	      	  		  m_aFolder;
//	Entry::iterator 		  		  m_aIterator;
      sal_Int32					      m_nOpenMode;
      sal_Bool					      m_bCountFinal;
                                                           
    DataSupplier_Impl( const Reference< XMultiServiceFactory >& rxSMgr,
                       const rtl::Reference< Content >& rContent,
                       sal_Int32 nOpenMode )
    : m_xContent( rContent ), m_xSMgr( rxSMgr ),
//	  m_aFolder( rxSMgr, rContent->getIdentifier()->getContentIdentifier() ),
      m_nOpenMode( nOpenMode ), m_bCountFinal( sal_False ) {}
    ~DataSupplier_Impl();
};

//=========================================================================
DataSupplier_Impl::~DataSupplier_Impl()
{
    ResultList::const_iterator it  = m_aResults.begin();
    ResultList::const_iterator end = m_aResults.end();

    while ( it != end )
    {
        delete (*it);
        it++;
    }
}

}

//=========================================================================
//=========================================================================
//
// DataSupplier Implementation.
//
//=========================================================================
//=========================================================================

DataSupplier::DataSupplier( const Reference<XMultiServiceFactory >& rxSMgr,
                           const rtl::Reference< ::odma::Content >& rContent,
                            sal_Int32 nOpenMode )
: m_pImpl( new DataSupplier_Impl( rxSMgr, rContent, nOpenMode ) )
{
}

//=========================================================================
// virtual
DataSupplier::~DataSupplier()
{
    delete m_pImpl;
}

//=========================================================================
// virtual
::rtl::OUString DataSupplier::queryContentIdentifierString( sal_uInt32 nIndex )
{
    osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( nIndex < m_pImpl->m_aResults.size() )
    {
        ::rtl::OUString aId = m_pImpl->m_aResults[ nIndex ]->aId;
        if ( aId.getLength() )
        {
            // Already cached.
            return aId;
        }
    }

    if ( getResult( nIndex ) )
    {
        ::rtl::OUString aId
            = m_pImpl->m_xContent->getIdentifier()->getContentIdentifier();

        aId += m_pImpl->m_aResults[ nIndex ]->rData->m_sTitle;

        m_pImpl->m_aResults[ nIndex ]->aId = aId;
        return aId;
    }
    return ::rtl::OUString();
}

//=========================================================================
// virtual
Reference< XContentIdentifier > DataSupplier::queryContentIdentifier(
                                                        sal_uInt32 nIndex )
{
    osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( nIndex < m_pImpl->m_aResults.size() )
    {
        Reference< XContentIdentifier > xId
                                = m_pImpl->m_aResults[ nIndex ]->xId;
        if ( xId.is() )
        {
            // Already cached.
            return xId;
        }
    }

    ::rtl::OUString aId = queryContentIdentifierString( nIndex );
    if ( aId.getLength() )
    {
        Reference< XContentIdentifier > xId 
            = new ucbhelper::ContentIdentifier( aId );
        m_pImpl->m_aResults[ nIndex ]->xId = xId;
        return xId;
    }
    return Reference< XContentIdentifier >();
}

//=========================================================================
// virtual
Reference< XContent > DataSupplier::queryContent( sal_uInt32 nIndex )
{
    osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( nIndex < m_pImpl->m_aResults.size() )
    {
        Reference< XContent > xContent
                                = m_pImpl->m_aResults[ nIndex ]->xContent;
        if ( xContent.is() )
        {
            // Already cached.
            return xContent;
        }
    }

    Reference< XContentIdentifier > xId = queryContentIdentifier( nIndex );
    if ( xId.is() )
    {
        try
        {
            Reference< XContent > xContent
                = m_pImpl->m_xContent->getProvider()->queryContent( xId );
            m_pImpl->m_aResults[ nIndex ]->xContent = xContent;
            return xContent;

        }
        catch ( IllegalIdentifierException& )
        {
        }
    }
    return Reference< XContent >();
}

//=========================================================================
// virtual
sal_Bool DataSupplier::getResult( sal_uInt32 nIndex )
{
    osl::ClearableGuard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( m_pImpl->m_aResults.size() > nIndex )
    {
        // Result already present.
        return sal_True;
    }

    // Result not (yet) present.

    if ( m_pImpl->m_bCountFinal )
        return sal_False;

    // Try to obtain result...

    sal_uInt32 nOldCount = m_pImpl->m_aResults.size();
    sal_Bool bFound = sal_False;
//	sal_uInt32 nPos = nOldCount;

    // @@@ Obtain data and put it into result list...
/*
    while ( m_pImpl->m_aFolder.next( m_pImpl->m_aIterator ) )
    {
        m_pImpl->m_aResults.push_back(
                        new ResultListEntry( *m_pImpl->m_aIterator ) );

        if ( nPos == nIndex )
        {
            // Result obtained.
            bFound = sal_True;
            break;
        }

        nPos++;
    }
*/
    // now query for all documents in the DMS
    OSL_ENSURE(ContentProvider::getHandle(),"No Handle!");
    sal_Char* pQueryId		= new sal_Char[ODM_QUERYID_MAX];
    sal_Char* lpszDMSList	= new sal_Char[ODM_DMSID_MAX];

    ODMSTATUS odm = NODMGetDMS(ODMA_ODMA_REGNAME, lpszDMSList);
    lpszDMSList[strlen(lpszDMSList)+1] = '\0';

    ::rtl::OString sQuery("SELECT ODM_DOCID_LATEST, ODM_NAME");
    
    DWORD dwFlags = ODM_SPECIFIC;
    odm = NODMQueryExecute(ContentProvider::getHandle(), sQuery,dwFlags, lpszDMSList, pQueryId );
    if(odm != ODM_SUCCESS)
        return sal_False;

    sal_uInt16 nCount		= 10;
    sal_uInt16 nMaxCount	= 10;
    sal_Char* lpszDocId		= new sal_Char[ODM_DOCID_MAX * nMaxCount];
    sal_Char* lpszDocName	= new sal_Char[ODM_NAME_MAX * nMaxCount];

    
    ::rtl::OUString sContentType(RTL_CONSTASCII_USTRINGPARAM(ODMA_CONTENT_TYPE));
    sal_uInt32 nCurrentCount = 0;
    do
    {
        if(nCount >= nMaxCount)
        {
            nCount = nMaxCount;
            odm = NODMQueryGetResults(ContentProvider::getHandle(), pQueryId,lpszDocId, lpszDocName, ODM_NAME_MAX, (WORD*)&nCount);
            nCurrentCount += nCount;
        }
        if(odm == ODM_SUCCESS && nIndex < nCurrentCount)
        {
            bFound = sal_True;
            for(sal_uInt16 i = 0; i < nCount; ++i)
            {
                ::rtl::Reference<ContentProperties> rProps = new ContentProperties();
                rProps->m_sDocumentId	= ::rtl::OString(&lpszDocId[ODM_DOCID_MAX*i]);
                rProps->m_sContentType	= sContentType;
                m_pImpl->m_xContent->getContentProvider()->append(rProps);
                m_pImpl->m_aResults.push_back( new ResultListEntry(rProps));
            }
        }
    }
    while(nCount > nMaxCount);
    

    // now close the query
    odm = NODMQueryClose(ContentProvider::getHandle(), pQueryId);

    delete [] lpszDMSList;
    delete [] pQueryId;
    delete [] lpszDocId;
    delete [] lpszDocName;

    if ( !bFound )
        m_pImpl->m_bCountFinal = sal_True;

    rtl::Reference< ucbhelper::ResultSet > xResultSet = getResultSet();
    if ( xResultSet.is() )
    {
        // Callbacks follow!
        aGuard.clear();

        if ( nOldCount < m_pImpl->m_aResults.size() )
            xResultSet->rowCountChanged(
                                    nOldCount, m_pImpl->m_aResults.size() );

        if ( m_pImpl->m_bCountFinal )
            xResultSet->rowCountFinal();
    }

    return bFound;
}

//=========================================================================
// virtual
sal_uInt32 DataSupplier::totalCount()
{
    osl::ClearableGuard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( m_pImpl->m_bCountFinal )
        return m_pImpl->m_aResults.size();

    sal_uInt32 nOldCount = m_pImpl->m_aResults.size();

    // @@@ Obtain data and put it into result list...
/*
    while ( m_pImpl->m_aFolder.next( m_pImpl->m_aIterator ) )
        m_pImpl->m_aResults.push_back(
                        new ResultListEntry( *m_pImpl->m_aIterator ) );
*/
    m_pImpl->m_bCountFinal = sal_True;

    rtl::Reference< ucbhelper::ResultSet > xResultSet = getResultSet();
    if ( xResultSet.is() )
    {
        // Callbacks follow!
        aGuard.clear();

        if ( nOldCount < m_pImpl->m_aResults.size() )
            xResultSet->rowCountChanged(
                                    nOldCount, m_pImpl->m_aResults.size() );

        xResultSet->rowCountFinal();
    }

    return m_pImpl->m_aResults.size();
}

//=========================================================================
// virtual
sal_uInt32 DataSupplier::currentCount()
{
    return m_pImpl->m_aResults.size();
}

//=========================================================================
// virtual
sal_Bool DataSupplier::isCountFinal()
{
    return m_pImpl->m_bCountFinal;
}

//=========================================================================
// virtual
Reference< XRow > DataSupplier::queryPropertyValues( sal_uInt32 nIndex  )
{
    osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( nIndex < m_pImpl->m_aResults.size() )
    {
        Reference< XRow > xRow = m_pImpl->m_aResults[ nIndex ]->xRow;
        if ( xRow.is() )
        {
            // Already cached.
            return xRow;
        }
    }

    if ( getResult( nIndex ) )
    {
        Reference< XRow > xRow = Content::getPropertyValues(
                                    m_pImpl->m_xSMgr,
                                    getResultSet()->getProperties(),
                                    m_pImpl->m_aResults[ nIndex ]->rData,
                                    m_pImpl->m_xContent->getProvider(),
                                    queryContentIdentifierString( nIndex ) );
        m_pImpl->m_aResults[ nIndex ]->xRow = xRow;
        return xRow;
    }

    return Reference< XRow >();
}

//=========================================================================
// virtual
void DataSupplier::releasePropertyValues( sal_uInt32 nIndex )
{
    osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );

    if ( nIndex < m_pImpl->m_aResults.size() )
        m_pImpl->m_aResults[ nIndex ]->xRow = Reference< XRow >();
}

//=========================================================================
// virtual
void DataSupplier::close()
{
}

//=========================================================================
// virtual
void DataSupplier::validate()
    throw( ResultSetException )
{
}