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/* -*- 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.emplace_back(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.emplace_back(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: */
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