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Diffstat (limited to 'src/xmlpatterns/acceltree/qacceltreeresourceloader_p.h')
| -rw-r--r-- | src/xmlpatterns/acceltree/qacceltreeresourceloader_p.h | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/xmlpatterns/acceltree/qacceltreeresourceloader_p.h b/src/xmlpatterns/acceltree/qacceltreeresourceloader_p.h new file mode 100644 index 0000000..863fd65 --- /dev/null +++ b/src/xmlpatterns/acceltree/qacceltreeresourceloader_p.h @@ -0,0 +1,195 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef Patternist_AccelTreeResourceLoader_H +#define Patternist_AccelTreeResourceLoader_H + +#include <QtCore/QHash> +#include <QtCore/QEventLoop> +#include <QtNetwork/QNetworkReply> + +#include "qabstractxmlreceiver.h" +#include "qacceltree_p.h" +#include "qdeviceresourceloader_p.h" +#include "qnamepool_p.h" +#include "qnetworkaccessdelegator_p.h" +#include "qreportcontext_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QIODevice; + +namespace QPatternist +{ + /** + * @short An helper class which enables QNetworkAccessManager + * to be used in a blocking manner. + * + * @see AccelTreeResourceLoader::load() + * @author Frans Englich <fenglich@trolltech.com> + */ + class NetworkLoop : public QEventLoop + { + Q_OBJECT + public: + NetworkLoop() : m_hasReceivedError(false) + { + } + + public Q_SLOTS: + void error(QNetworkReply::NetworkError code) + { + Q_UNUSED(code); + m_hasReceivedError = true; + exit(1); + } + + void finished() + { + if(m_hasReceivedError) + exit(1); + else + exit(0); + } + private: + bool m_hasReceivedError; + }; + + /** + * @short Handles requests for documents, and instantiates + * them as AccelTree instances. + * + * @author Frans Englich <fenglich@trolltech.com> + */ + class Q_AUTOTEST_EXPORT AccelTreeResourceLoader : public DeviceResourceLoader + { + public: + /** + * AccelTreeResourceLoader does not own @p context. + */ + AccelTreeResourceLoader(const NamePool::Ptr &np, + const NetworkAccessDelegator::Ptr &networkDelegator); + + virtual Item openDocument(const QUrl &uri, + const ReportContext::Ptr &context); + virtual SequenceType::Ptr announceDocument(const QUrl &uri, const Usage usageHint); + virtual bool isDocumentAvailable(const QUrl &uri); + + virtual bool isUnparsedTextAvailable(const QUrl &uri, + const QString &encoding); + + virtual Item openUnparsedText(const QUrl &uri, + const QString &encoding, + const ReportContext::Ptr &context, + const SourceLocationReflection *const where); + + + /** + * @short Helper function that do NetworkAccessDelegator::get(), but + * does it blocked. + * + * The returned QNetworkReply has emitted QNetworkReply::finished(). + * + * The caller owns the return QIODevice instance. + * + * @p context may be @c null or valid. If @c null, no error reporting + * is done and @c null is returned. + * + * @see NetworkAccessDelegator + */ + static QNetworkReply *load(const QUrl &uri, + QNetworkAccessManager *const networkManager, + const ReportContext::Ptr &context); + + /** + * @overload + */ + static QNetworkReply *load(const QUrl &uri, + const NetworkAccessDelegator::Ptr &networkDelegator, + const ReportContext::Ptr &context); + + /** + * @short Returns the URIs this AccelTreeResourceLoader has loaded + * which are for devices through variable bindings. + */ + virtual QSet<QUrl> deviceURIs() const; + + virtual void clear(const QUrl &uri); + private: + static bool streamToReceiver(QIODevice *const dev, + QAbstractXmlReceiver *const receiver, + const NamePool::Ptr &np, + const ReportContext::Ptr &context, + const QUrl &uri); + bool retrieveDocument(const QUrl &uri, + const ReportContext::Ptr &context); + /** + * If @p context is @c null, no error reporting should be done. + */ + bool retrieveUnparsedText(const QUrl &uri, + const QString &encoding, + const ReportContext::Ptr &context, + const SourceLocationReflection *const where); + + QHash<QUrl, AccelTree::Ptr> m_loadedDocuments; + const NamePool::Ptr m_namePool; + const NetworkAccessDelegator::Ptr m_networkAccessDelegator; + QHash<QPair<QUrl, QString>, QString> m_unparsedTexts; + }; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |