office-gobmx/ucb/source/ucp/tdoc/tdoc_datasupplier.cxx
2011-03-29 21:40:28 +01:00

469 lines
14 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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 "osl/diagnose.h"
#include "ucbhelper/contentidentifier.hxx"
#include "tdoc_datasupplier.hxx"
#include "tdoc_content.hxx"
using namespace com::sun::star;
using namespace tdoc_ucp;
namespace tdoc_ucp
{
//=========================================================================
//
// struct ResultListEntry.
//
//=========================================================================
struct ResultListEntry
{
rtl::OUString aURL;
uno::Reference< ucb::XContentIdentifier > xId;
uno::Reference< ucb::XContent > xContent;
uno::Reference< sdbc::XRow > xRow;
ResultListEntry( const rtl::OUString& rURL ) : aURL( rURL ) {}
};
//=========================================================================
//
// ResultList.
//
//=========================================================================
typedef std::vector< ResultListEntry* > ResultList;
//=========================================================================
//
// struct DataSupplier_Impl.
//
//=========================================================================
struct DataSupplier_Impl
{
osl::Mutex m_aMutex;
ResultList m_aResults;
rtl::Reference< Content > m_xContent;
uno::Reference< lang::XMultiServiceFactory > m_xSMgr;
uno::Sequence< rtl::OUString > * m_pNamesOfChildren;
sal_Int32 m_nOpenMode;
bool m_bCountFinal;
bool m_bThrowException;
DataSupplier_Impl(
const uno::Reference< lang::XMultiServiceFactory >& rxSMgr,
const rtl::Reference< Content >& rContent,
sal_Int32 nOpenMode )
: m_xContent( rContent ), m_xSMgr( rxSMgr ),
m_pNamesOfChildren( 0 ), m_nOpenMode( nOpenMode ),
m_bCountFinal( false ), m_bThrowException( 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;
}
delete m_pNamesOfChildren;
}
}
//=========================================================================
//=========================================================================
//
// DataSupplier Implementation.
//
//=========================================================================
//=========================================================================
ResultSetDataSupplier::ResultSetDataSupplier(
const uno::Reference< lang::XMultiServiceFactory >& rxSMgr,
const rtl::Reference< Content >& rContent,
sal_Int32 nOpenMode )
: m_pImpl( new DataSupplier_Impl( rxSMgr, rContent, nOpenMode ) )
{
}
//=========================================================================
// virtual
ResultSetDataSupplier::~ResultSetDataSupplier()
{
delete m_pImpl;
}
//=========================================================================
// virtual
rtl::OUString
ResultSetDataSupplier::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 ]->aURL;
if ( aId.getLength() )
{
// Already cached.
return aId;
}
}
if ( getResult( nIndex ) )
{
// Note: getResult fills m_pImpl->m_aResults[ nIndex ]->aURL.
return m_pImpl->m_aResults[ nIndex ]->aURL;
}
return rtl::OUString();
}
//=========================================================================
// virtual
uno::Reference< ucb::XContentIdentifier >
ResultSetDataSupplier::queryContentIdentifier( sal_uInt32 nIndex )
{
osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );
if ( nIndex < m_pImpl->m_aResults.size() )
{
uno::Reference< ucb::XContentIdentifier > xId
= m_pImpl->m_aResults[ nIndex ]->xId;
if ( xId.is() )
{
// Already cached.
return xId;
}
}
rtl::OUString aId = queryContentIdentifierString( nIndex );
if ( aId.getLength() )
{
uno::Reference< ucb::XContentIdentifier > xId
= new ::ucbhelper::ContentIdentifier( aId );
m_pImpl->m_aResults[ nIndex ]->xId = xId;
return xId;
}
return uno::Reference< ucb::XContentIdentifier >();
}
//=========================================================================
// virtual
uno::Reference< ucb::XContent >
ResultSetDataSupplier::queryContent( sal_uInt32 nIndex )
{
osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );
if ( nIndex < m_pImpl->m_aResults.size() )
{
uno::Reference< ucb::XContent > xContent
= m_pImpl->m_aResults[ nIndex ]->xContent;
if ( xContent.is() )
{
// Already cached.
return xContent;
}
}
uno::Reference< ucb::XContentIdentifier > xId
= queryContentIdentifier( nIndex );
if ( xId.is() )
{
try
{
uno::Reference< ucb::XContent > xContent
= m_pImpl->m_xContent->getProvider()->queryContent( xId );
m_pImpl->m_aResults[ nIndex ]->xContent = xContent;
return xContent;
}
catch ( ucb::IllegalIdentifierException const & )
{
}
}
return uno::Reference< ucb::XContent >();
}
//=========================================================================
// virtual
sal_Bool ResultSetDataSupplier::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();
bool bFound = false;
if ( queryNamesOfChildren() )
{
for ( sal_uInt32 n = nOldCount;
n < sal::static_int_cast<sal_uInt32>(
m_pImpl->m_pNamesOfChildren->getLength());
++n )
{
const rtl::OUString & rName
= m_pImpl->m_pNamesOfChildren->getConstArray()[ n ];
if ( !rName.getLength() )
{
OSL_FAIL( "ResultDataSupplier::getResult - Empty name!" );
break;
}
// Assemble URL for child.
rtl::OUString aURL = assembleChildURL( rName );
m_pImpl->m_aResults.push_back( new ResultListEntry( aURL ) );
if ( n == nIndex )
{
// Result obtained.
bFound = true;
break;
}
}
}
if ( !bFound )
m_pImpl->m_bCountFinal = sal_True;
rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet().get();
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 ResultSetDataSupplier::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();
if ( queryNamesOfChildren() )
{
for ( sal_uInt32 n = nOldCount;
n < sal::static_int_cast<sal_uInt32>(
m_pImpl->m_pNamesOfChildren->getLength());
++n )
{
const rtl::OUString & rName
= m_pImpl->m_pNamesOfChildren->getConstArray()[ n ];
if ( !rName.getLength() )
{
OSL_FAIL( "ResultDataSupplier::getResult - Empty name!" );
break;
}
// Assemble URL for child.
rtl::OUString aURL = assembleChildURL( rName );
m_pImpl->m_aResults.push_back( new ResultListEntry( aURL ) );
}
}
m_pImpl->m_bCountFinal = sal_True;
rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet().get();
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 ResultSetDataSupplier::currentCount()
{
return m_pImpl->m_aResults.size();
}
//=========================================================================
// virtual
sal_Bool ResultSetDataSupplier::isCountFinal()
{
return m_pImpl->m_bCountFinal;
}
//=========================================================================
// virtual
uno::Reference< sdbc::XRow >
ResultSetDataSupplier::queryPropertyValues( sal_uInt32 nIndex )
{
osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );
if ( nIndex < m_pImpl->m_aResults.size() )
{
uno::Reference< sdbc::XRow > xRow = m_pImpl->m_aResults[ nIndex ]->xRow;
if ( xRow.is() )
{
// Already cached.
return xRow;
}
}
if ( getResult( nIndex ) )
{
uno::Reference< sdbc::XRow > xRow = Content::getPropertyValues(
m_pImpl->m_xSMgr,
getResultSet()->getProperties(),
m_pImpl->m_xContent->getContentProvider().get(),
queryContentIdentifierString( nIndex ) );
m_pImpl->m_aResults[ nIndex ]->xRow = xRow;
return xRow;
}
return uno::Reference< sdbc::XRow >();
}
//=========================================================================
// virtual
void ResultSetDataSupplier::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 = uno::Reference< sdbc::XRow >();
}
//=========================================================================
// virtual
void ResultSetDataSupplier::close()
{
}
//=========================================================================
// virtual
void ResultSetDataSupplier::validate()
throw( ucb::ResultSetException )
{
if ( m_pImpl->m_bThrowException )
throw ucb::ResultSetException();
}
//=========================================================================
bool ResultSetDataSupplier::queryNamesOfChildren()
{
osl::Guard< osl::Mutex > aGuard( m_pImpl->m_aMutex );
if ( m_pImpl->m_pNamesOfChildren == 0 )
{
uno::Sequence< rtl::OUString > * pNamesOfChildren
= new uno::Sequence< rtl::OUString >();
if ( !m_pImpl->m_xContent->getContentProvider()->queryNamesOfChildren(
m_pImpl->m_xContent->getIdentifier()->getContentIdentifier(),
*pNamesOfChildren ) )
{
OSL_FAIL( "Got no list of children!" );
m_pImpl->m_bThrowException = sal_True;
return false;
}
else
{
m_pImpl->m_pNamesOfChildren = pNamesOfChildren;
}
}
return true;
}
//=========================================================================
::rtl::OUString
ResultSetDataSupplier::assembleChildURL( const ::rtl::OUString& aName )
{
rtl::OUString aContURL
= m_pImpl->m_xContent->getIdentifier()->getContentIdentifier();
rtl::OUString aURL( aContURL );
sal_Int32 nUrlEnd = aURL.lastIndexOf( '/' );
if ( nUrlEnd != aURL.getLength() - 1 )
aURL += rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("/"));
aURL += aName;
return aURL;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */