Slightly faster version of asynchronous metadata download.

Change-Id: I63793529eeebfd3ea0a325cabe79d646015dc3bc
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

1 files changed, 107 insertions, 0 deletions

diff --git a/src/libs/installer/metadatajob.h b/src/libs/installer/metadatajob.h
new file mode 100644
index 000000000..a10eb083b
--- /dev/null
+++ b/src/libs/installer/metadatajob.h
@@ -0,0 +1,107 @@
+/**************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, 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.
+**
+**
+** $QT_END_LICENSE$
+**
+**************************************************************************/
+
+#ifndef METADATAJOB_H
+#define METADATAJOB_H
+
+#include "downloadfiletask.h"
+#include "fileutils.h"
+#include "kdjob.h"
+#include "repository.h"
+
+#include <QFutureWatcher>
+
+namespace QInstaller {
+
+class PackageManagerCore;
+
+struct Metadata
+{
+    QString directory;
+    Repository repository;
+};
+
+class INSTALLER_EXPORT MetadataJob : public KDJob
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(MetadataJob)
+
+    enum Status {
+        XmlDownloadRetry,
+        XmlDownloadFailure,
+        XmlDownloadSuccess
+    };
+
+public:
+    explicit MetadataJob(QObject *parent = 0);
+    ~MetadataJob();
+
+    QList<Metadata> metadata() const { return m_metadata.values(); }
+    Repository repositoryForDirectory(const QString &directory) const;
+    void setPackageManagerCore(PackageManagerCore *core) { m_core = core; }
+
+private slots:
+    void doStart();
+    void doCancel();
+
+    void xmlTaskFinished();
+    void unzipTaskFinished();
+    void metadataTaskFinished();
+    void progressChanged(int progress);
+
+private:
+    void reset();
+    Status parseUpdatesXml(const QList<FileTaskResult> &results);
+
+private:
+    PackageManagerCore *m_core;
+
+    QList<FileTaskItem> m_packages;
+    TempDirDeleter m_tempDirDeleter;
+    QHash<QString, Metadata> m_metadata;
+    QFutureWatcher<FileTaskResult> m_xmlTask;
+    QFutureWatcher<FileTaskResult> m_metadataTask;
+    QHash<QFutureWatcher<void> *, QObject*> m_unzipTasks;
+};
+
+}   // namespace QInstaller
+
+#endif  // METADATAJOB_H