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Diffstat (limited to 'ucb/source/ucp/package/pkgdatasupplier.cxx')
| -rw-r--r-- | ucb/source/ucp/package/pkgdatasupplier.cxx | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/ucb/source/ucp/package/pkgdatasupplier.cxx b/ucb/source/ucp/package/pkgdatasupplier.cxx new file mode 100644 index 0000000000..436f7023d3 --- /dev/null +++ b/ucb/source/ucp/package/pkgdatasupplier.cxx @@ -0,0 +1,425 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + + +/************************************************************************** + TODO + ************************************************************************** + + *************************************************************************/ + +#include <osl/diagnose.h> +#include <com/sun/star/container/XNamed.hpp> +#include <com/sun/star/ucb/IllegalIdentifierException.hpp> +#include <com/sun/star/ucb/ResultSetException.hpp> +#include <ucbhelper/contentidentifier.hxx> +#include <ucbhelper/providerhelper.hxx> +#include <utility> +#include "pkgdatasupplier.hxx" +#include "pkgcontent.hxx" +#include "pkgprovider.hxx" + +#include "../inc/urihelper.hxx" + +using namespace com::sun::star; +using namespace package_ucp; + +// DataSupplier Implementation. + + +DataSupplier::DataSupplier( + uno::Reference< uno::XComponentContext > xContext, + const rtl::Reference< Content >& rContent ) +: m_xContent( rContent ), m_xContext(std::move( xContext )), + m_xFolderEnum( rContent->getIterator() ), + m_bCountFinal( !m_xFolderEnum.is() ), m_bThrowException( m_bCountFinal ) +{ +} + + +// virtual +DataSupplier::~DataSupplier() +{ +} + + +// virtual +OUString DataSupplier::queryContentIdentifierString( sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + return queryContentIdentifierStringImpl(aGuard, nIndex); +} + +OUString DataSupplier::queryContentIdentifierStringImpl( std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex ) +{ + if ( nIndex < m_aResults.size() ) + { + OUString aId = m_aResults[ nIndex ].aURL; + if ( !aId.isEmpty() ) + { + // Already cached. + return aId; + } + } + + if ( getResultImpl( rGuard, nIndex ) ) + { + // Note: getResult fills m_aResults[ nIndex ].aURL. + return m_aResults[ nIndex ].aURL; + } + return OUString(); +} + + +// virtual +uno::Reference< ucb::XContentIdentifier > +DataSupplier::queryContentIdentifier( sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + return queryContentIdentifierImpl(aGuard, nIndex); +} + +uno::Reference< ucb::XContentIdentifier > +DataSupplier::queryContentIdentifierImpl( std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex ) +{ + if ( nIndex < m_aResults.size() ) + { + uno::Reference< ucb::XContentIdentifier >& xId + = m_aResults[ nIndex ].xId; + if ( xId.is() ) + { + // Already cached. + return xId; + } + } + + OUString aId = queryContentIdentifierStringImpl( rGuard, nIndex ); + if ( !aId.isEmpty() ) + { + uno::Reference< ucb::XContentIdentifier > xId + = new ::ucbhelper::ContentIdentifier( aId ); + m_aResults[ nIndex ].xId = xId; + return xId; + } + return uno::Reference< ucb::XContentIdentifier >(); +} + + +// virtual +uno::Reference< ucb::XContent > DataSupplier::queryContent( + sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + + if ( nIndex < m_aResults.size() ) + { + uno::Reference< ucb::XContent >& xContent + = m_aResults[ nIndex ].xContent; + if ( xContent.is() ) + { + // Already cached. + return xContent; + } + } + + uno::Reference< ucb::XContentIdentifier > xId + = queryContentIdentifierImpl( aGuard, nIndex ); + if ( xId.is() ) + { + try + { + uno::Reference< ucb::XContent > xContent + = m_xContent->getProvider()->queryContent( xId ); + m_aResults[ nIndex ].xContent = xContent; + return xContent; + + } + catch ( ucb::IllegalIdentifierException const & ) + { + } + } + return uno::Reference< ucb::XContent >(); +} + + +// virtual +bool DataSupplier::getResult( sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + return getResultImpl(aGuard, nIndex); +} + +bool DataSupplier::getResultImpl( std::unique_lock<std::mutex>& rGuard, sal_uInt32 nIndex ) +{ + if ( m_aResults.size() > nIndex ) + { + // Result already present. + return true; + } + + // Result not (yet) present. + + if ( m_bCountFinal ) + return false; + + // Try to obtain result... + + sal_uInt32 nOldCount = m_aResults.size(); + bool bFound = false; + sal_uInt32 nPos = nOldCount; + + while ( m_xFolderEnum->hasMoreElements() ) + { + try + { + uno::Reference< container::XNamed > xNamed; + m_xFolderEnum->nextElement() >>= xNamed; + + if ( !xNamed.is() ) + { + OSL_FAIL( "DataSupplier::getResult - Got no XNamed!" ); + break; + } + + OUString aName = xNamed->getName(); + + if ( aName.isEmpty() ) + { + OSL_FAIL( "DataSupplier::getResult - Empty name!" ); + break; + } + + // Assemble URL for child. + OUString aURL = assembleChildURL( aName ); + + m_aResults.push_back( ResultListEntry( aURL ) ); + + if ( nPos == nIndex ) + { + // Result obtained. + bFound = true; + break; + } + + nPos++; + } + catch ( container::NoSuchElementException const & ) + { + m_bThrowException = true; + break; + } + catch ( lang::WrappedTargetException const & ) + { + m_bThrowException = true; + break; + } + } + + if ( !bFound ) + m_bCountFinal = true; + + rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet(); + if ( xResultSet.is() ) + { + // Callbacks follow! + rGuard.unlock(); + + if ( nOldCount < m_aResults.size() ) + xResultSet->rowCountChanged( + nOldCount, m_aResults.size() ); + + if ( m_bCountFinal ) + xResultSet->rowCountFinal(); + + rGuard.lock(); + } + + return bFound; +} + + +// virtual +sal_uInt32 DataSupplier::totalCount() +{ + std::unique_lock aGuard( m_aMutex ); + + if ( m_bCountFinal ) + return m_aResults.size(); + + sal_uInt32 nOldCount = m_aResults.size(); + + while ( m_xFolderEnum->hasMoreElements() ) + { + try + { + uno::Reference< container::XNamed > xNamed; + m_xFolderEnum->nextElement() >>= xNamed; + + if ( !xNamed.is() ) + { + OSL_FAIL( "DataSupplier::getResult - Got no XNamed!" ); + break; + } + + OUString aName = xNamed->getName(); + + if ( aName.isEmpty() ) + { + OSL_FAIL( "DataSupplier::getResult - Empty name!" ); + break; + } + + // Assemble URL for child. + OUString aURL = assembleChildURL( aName ); + + m_aResults.push_back( ResultListEntry( aURL ) ); + } + catch ( container::NoSuchElementException const & ) + { + m_bThrowException = true; + break; + } + catch ( lang::WrappedTargetException const & ) + { + m_bThrowException = true; + break; + } + } + + m_bCountFinal = true; + + rtl::Reference< ::ucbhelper::ResultSet > xResultSet = getResultSet(); + if ( xResultSet.is() ) + { + // Callbacks follow! + aGuard.unlock(); + + if ( nOldCount < m_aResults.size() ) + xResultSet->rowCountChanged( + nOldCount, m_aResults.size() ); + + xResultSet->rowCountFinal(); + } + + return m_aResults.size(); +} + + +// virtual +sal_uInt32 DataSupplier::currentCount() +{ + return m_aResults.size(); +} + + +// virtual +bool DataSupplier::isCountFinal() +{ + return m_bCountFinal; +} + + +// virtual +uno::Reference< sdbc::XRow > DataSupplier::queryPropertyValues( + sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + + if ( nIndex < m_aResults.size() ) + { + uno::Reference< sdbc::XRow >& xRow = m_aResults[ nIndex ].xRow; + if ( xRow.is() ) + { + // Already cached. + return xRow; + } + } + + if ( getResultImpl( aGuard, nIndex ) ) + { + uno::Reference< sdbc::XRow > xRow = Content::getPropertyValues( + m_xContext, + getResultSet()->getProperties(), + static_cast< ContentProvider * >( + m_xContent->getProvider().get() ), + queryContentIdentifierStringImpl( aGuard, nIndex ) ); + m_aResults[ nIndex ].xRow = xRow; + return xRow; + } + + return uno::Reference< sdbc::XRow >(); +} + + +// virtual +void DataSupplier::releasePropertyValues( sal_uInt32 nIndex ) +{ + std::unique_lock aGuard( m_aMutex ); + + if ( nIndex < m_aResults.size() ) + m_aResults[ nIndex ].xRow.clear(); +} + + +// virtual +void DataSupplier::close() +{ +} + + +// virtual +void DataSupplier::validate() +{ + if ( m_bThrowException ) + throw ucb::ResultSetException(); +} + + +OUString DataSupplier::assembleChildURL( const OUString& aName ) +{ + OUString aURL; + OUString aContURL + = m_xContent->getIdentifier()->getContentIdentifier(); + sal_Int32 nParam = aContURL.indexOf( '?' ); + if ( nParam >= 0 ) + { + aURL = aContURL.copy( 0, nParam ); + + sal_Int32 nPackageUrlEnd = aURL.lastIndexOf( '/' ); + if ( nPackageUrlEnd != aURL.getLength() - 1 ) + aURL += "/"; + + aURL += ::ucb_impl::urihelper::encodeSegment( aName ) + + aContURL.subView( nParam ); + } + else + { + aURL = aContURL; + + sal_Int32 nPackageUrlEnd = aURL.lastIndexOf( '/' ); + if ( nPackageUrlEnd != aURL.getLength() - 1 ) + aURL += "/"; + + aURL += ::ucb_impl::urihelper::encodeSegment( aName ); + } + return aURL; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |