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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 "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(
+ const uno::Reference< uno::XComponentContext >& rxContext,
+ const rtl::Reference< Content >& rContent )
+: m_xContent( rContent ), m_xContext( rxContext ),
+ 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: */