394 lines
10 KiB
C++
394 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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/**************************************************************************
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TODO
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**************************************************************************
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*************************************************************************/
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#include <optional>
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#include <com/sun/star/ucb/IllegalIdentifierException.hpp>
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#include <com/sun/star/ucb/ResultSetException.hpp>
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#include <osl/diagnose.h>
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#include <ucbhelper/contentidentifier.hxx>
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#include <utility>
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#include "tdoc_datasupplier.hxx"
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#include "tdoc_content.hxx"
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using namespace com::sun::star;
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using namespace tdoc_ucp;
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namespace tdoc_ucp
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{
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// struct ResultListEntry.
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namespace {
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}
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// struct DataSupplier_Impl.
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}
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// DataSupplier Implementation.
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ResultSetDataSupplier::ResultSetDataSupplier(
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uno::Reference< uno::XComponentContext > xContext,
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rtl::Reference< Content > xContent )
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: m_xContent(std::move( xContent )), m_xContext(std::move( xContext )),
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m_bCountFinal( false ), m_bThrowException( false )
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{
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}
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// virtual
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ResultSetDataSupplier::~ResultSetDataSupplier()
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{
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}
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// virtual
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OUString
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ResultSetDataSupplier::queryContentIdentifierString( std::unique_lock<std::mutex>& rResultSetGuard, sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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return queryContentIdentifierStringImpl(rResultSetGuard, aGuard, nIndex);
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}
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OUString
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ResultSetDataSupplier::queryContentIdentifierStringImpl( std::unique_lock<std::mutex>& rResultSetGuard, std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex )
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{
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if ( nIndex < m_aResults.size() )
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{
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OUString aId = m_aResults[ nIndex ].aURL;
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if ( !aId.isEmpty() )
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{
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// Already cached.
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return aId;
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}
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}
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if ( getResultImpl(rResultSetGuard, rGuard, nIndex) )
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{
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// Note: getResult fills m_pImpl->m_aResults[ nIndex ]->aURL.
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return m_aResults[ nIndex ].aURL;
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}
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return OUString();
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}
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// virtual
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uno::Reference< ucb::XContentIdentifier >
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ResultSetDataSupplier::queryContentIdentifier( std::unique_lock<std::mutex>& rResultSetGuard, sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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return queryContentIdentifierImpl(rResultSetGuard, aGuard, nIndex);
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}
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uno::Reference< ucb::XContentIdentifier >
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ResultSetDataSupplier::queryContentIdentifierImpl( std::unique_lock<std::mutex>& rResultSetGuard, std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex )
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{
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if ( nIndex < m_aResults.size() )
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{
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uno::Reference< ucb::XContentIdentifier > xId
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= m_aResults[ nIndex ].xId;
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if ( xId.is() )
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{
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// Already cached.
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return xId;
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}
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}
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OUString aId = queryContentIdentifierStringImpl( rResultSetGuard, rGuard, nIndex );
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if ( !aId.isEmpty() )
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{
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uno::Reference< ucb::XContentIdentifier > xId
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= new ::ucbhelper::ContentIdentifier( aId );
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m_aResults[ nIndex ].xId = xId;
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return xId;
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}
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return uno::Reference< ucb::XContentIdentifier >();
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}
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// virtual
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uno::Reference< ucb::XContent >
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ResultSetDataSupplier::queryContent( std::unique_lock<std::mutex>& rResultSetGuard, sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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if ( nIndex < m_aResults.size() )
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{
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uno::Reference< ucb::XContent > xContent
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= m_aResults[ nIndex ].xContent;
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if ( xContent.is() )
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{
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// Already cached.
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return xContent;
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}
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}
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uno::Reference< ucb::XContentIdentifier > xId
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= queryContentIdentifierImpl( rResultSetGuard, aGuard, nIndex );
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if ( xId.is() )
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{
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try
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{
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uno::Reference< ucb::XContent > xContent
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= m_xContent->getProvider()->queryContent( xId );
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m_aResults[ nIndex ].xContent = xContent;
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return xContent;
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}
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catch ( ucb::IllegalIdentifierException const & )
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{
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}
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}
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return uno::Reference< ucb::XContent >();
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}
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// virtual
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bool ResultSetDataSupplier::getResult( std::unique_lock<std::mutex>& rResultSetGuard, sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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return getResultImpl(rResultSetGuard, aGuard, nIndex);
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}
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bool ResultSetDataSupplier::getResultImpl( std::unique_lock<std::mutex>& rResultSetGuard, std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex )
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{
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if ( m_aResults.size() > nIndex )
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{
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// Result already present.
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return true;
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}
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// Result not (yet) present.
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if ( m_bCountFinal )
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return false;
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// Try to obtain result...
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sal_uInt32 nOldCount = m_aResults.size();
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bool bFound = false;
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if ( queryNamesOfChildren(rGuard) )
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{
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for ( sal_uInt32 n = nOldCount;
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n < sal::static_int_cast<sal_uInt32>(
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m_xNamesOfChildren->getLength());
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++n )
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{
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const OUString & rName
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= m_xNamesOfChildren->getConstArray()[ n ];
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if ( rName.isEmpty() )
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{
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OSL_FAIL( "ResultDataSupplier::getResult - Empty name!" );
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break;
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}
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// Assemble URL for child.
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OUString aURL = assembleChildURL( rName );
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m_aResults.emplace_back( aURL );
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if ( n == nIndex )
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{
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// Result obtained.
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bFound = true;
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break;
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}
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}
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}
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if ( !bFound )
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m_bCountFinal = true;
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rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet();
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if ( xResultSet.is() )
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{
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// Callbacks follow!
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rGuard.unlock();
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if ( nOldCount < m_aResults.size() )
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xResultSet->rowCountChanged( rResultSetGuard, nOldCount, m_aResults.size() );
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if ( m_bCountFinal )
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xResultSet->rowCountFinal(rResultSetGuard);
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rGuard.lock();
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}
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return bFound;
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}
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// virtual
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sal_uInt32 ResultSetDataSupplier::totalCount(std::unique_lock<std::mutex>& rResultSetGuard)
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{
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std::unique_lock aGuard( m_aMutex );
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if ( m_bCountFinal )
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return m_aResults.size();
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sal_uInt32 nOldCount = m_aResults.size();
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if ( queryNamesOfChildren(aGuard) )
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{
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for ( sal_uInt32 n = nOldCount;
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n < sal::static_int_cast<sal_uInt32>(
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m_xNamesOfChildren->getLength());
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++n )
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{
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const OUString & rName
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= m_xNamesOfChildren->getConstArray()[ n ];
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if ( rName.isEmpty() )
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{
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OSL_FAIL( "ResultDataSupplier::getResult - Empty name!" );
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break;
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}
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// Assemble URL for child.
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OUString aURL = assembleChildURL( rName );
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m_aResults.emplace_back( aURL );
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}
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}
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m_bCountFinal = true;
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rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet();
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if ( xResultSet.is() )
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{
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// Callbacks follow!
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aGuard.unlock();
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if ( nOldCount < m_aResults.size() )
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xResultSet->rowCountChanged( rResultSetGuard, nOldCount, m_aResults.size() );
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xResultSet->rowCountFinal(rResultSetGuard);
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}
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return m_aResults.size();
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}
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// virtual
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sal_uInt32 ResultSetDataSupplier::currentCount()
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{
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return m_aResults.size();
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}
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// virtual
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bool ResultSetDataSupplier::isCountFinal()
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{
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return m_bCountFinal;
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}
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// virtual
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uno::Reference< sdbc::XRow >
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ResultSetDataSupplier::queryPropertyValues( std::unique_lock<std::mutex>& rResultSetGuard, sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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if ( nIndex < m_aResults.size() )
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{
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uno::Reference< sdbc::XRow > xRow = m_aResults[ nIndex ].xRow;
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if ( xRow.is() )
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{
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// Already cached.
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return xRow;
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}
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}
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if ( getResultImpl( rResultSetGuard, aGuard, nIndex ) )
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{
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uno::Reference< sdbc::XRow > xRow = Content::getPropertyValues(
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m_xContext,
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getResultSet()->getProperties(),
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m_xContent->getContentProvider().get(),
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queryContentIdentifierStringImpl( rResultSetGuard, aGuard, nIndex ) );
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m_aResults[ nIndex ].xRow = xRow;
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return xRow;
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}
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return uno::Reference< sdbc::XRow >();
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}
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// virtual
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void ResultSetDataSupplier::releasePropertyValues( sal_uInt32 nIndex )
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{
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std::unique_lock aGuard( m_aMutex );
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if ( nIndex < m_aResults.size() )
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m_aResults[ nIndex ].xRow.clear();
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}
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// virtual
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void ResultSetDataSupplier::close()
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{
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}
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// virtual
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void ResultSetDataSupplier::validate()
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{
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if ( m_bThrowException )
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throw ucb::ResultSetException();
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}
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bool ResultSetDataSupplier::queryNamesOfChildren(std::unique_lock<std::mutex>& /*rGuard*/)
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{
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if ( !m_xNamesOfChildren )
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{
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uno::Sequence< OUString > aNamesOfChildren;
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if ( !m_xContent->getContentProvider()->queryNamesOfChildren(
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m_xContent->getIdentifier()->getContentIdentifier(),
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aNamesOfChildren ) )
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{
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OSL_FAIL( "Got no list of children!" );
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m_bThrowException = true;
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return false;
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}
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else
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{
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m_xNamesOfChildren = std::move( aNamesOfChildren );
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}
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}
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return true;
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}
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OUString
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ResultSetDataSupplier::assembleChildURL( std::u16string_view aName )
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{
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OUString aURL
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= m_xContent->getIdentifier()->getContentIdentifier();
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sal_Int32 nUrlEnd = aURL.lastIndexOf( '/' );
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if ( nUrlEnd != aURL.getLength() - 1 )
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aURL += "/";
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aURL += aName;
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return aURL;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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