From 64391c88c7e1421dd146b528c4395c68049c4adb Mon Sep 17 00:00:00 2001 From: Tim Jenssen Date: Tue, 8 Mar 2011 20:46:27 +0100 Subject: moved some directories and adjusted the README - also removed some unused projects under examples(updater, updaterplugin) - adjusted pro files to the new structure --- tools/repogenfromonlinerepo/downloadmanager.cpp | 172 ++++++++++++++++++++++++ 1 file changed, 172 insertions(+) create mode 100644 tools/repogenfromonlinerepo/downloadmanager.cpp (limited to 'tools/repogenfromonlinerepo/downloadmanager.cpp') diff --git a/tools/repogenfromonlinerepo/downloadmanager.cpp b/tools/repogenfromonlinerepo/downloadmanager.cpp new file mode 100644 index 000000000..61bf7ea88 --- /dev/null +++ b/tools/repogenfromonlinerepo/downloadmanager.cpp @@ -0,0 +1,172 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "downloadmanager.h" + +#include +#include +#include +#include +#include +#include +#include + +DownloadManager::DownloadManager(QObject *parent) + : QObject(parent), downloadedCount(0), totalCount(0) +{ +} + +void DownloadManager::append(const QStringList &urlList) +{ + foreach (QString url, urlList) + append(QUrl::fromEncoded(url.toLocal8Bit())); + + if (downloadQueue.isEmpty()) + QTimer::singleShot(0, this, SIGNAL(finished())); +} + +void DownloadManager::append(const QUrl &url) +{ + if (downloadQueue.isEmpty()) + QTimer::singleShot(0, this, SLOT(startNextDownload())); + + downloadQueue.enqueue(url); + ++totalCount; +} + +QString DownloadManager::saveFileName(const QUrl &url) +{ + QString path = url.path(); + QString basename = QFileInfo(path).fileName(); + + if (basename.isEmpty()) + basename = "download"; + + if (QFile::exists(basename)) { + // already exists, rename the old one + int i = 0; + while (QFile::exists(basename + ".old_" + QString::number(i))) + ++i; + + QFile::rename(basename, basename + ".old_" + QString::number(i)); + //basename += QString::number(i); + } + + return basename; +} + +void DownloadManager::startNextDownload() +{ + if (downloadQueue.isEmpty()) { + printf("%d/%d files downloaded successfully\n", downloadedCount, totalCount); + emit finished(); + return; + } + + QUrl url = downloadQueue.dequeue(); + + QString filename = saveFileName(url); + output.setFileName(filename); + if (!output.open(QIODevice::WriteOnly)) { + fprintf(stderr, "Problem opening save file '%s' for download '%s': %s\n", + qPrintable(filename), url.toEncoded().constData(), + qPrintable(output.errorString())); + + startNextDownload(); + return; // skip this download + } + + QNetworkRequest request(url); + currentDownload = manager.get(request); + connect(currentDownload, SIGNAL(downloadProgress(qint64,qint64)), + SLOT(downloadProgress(qint64,qint64))); + connect(currentDownload, SIGNAL(finished()), + SLOT(downloadFinished())); + connect(currentDownload, SIGNAL(readyRead()), + SLOT(downloadReadyRead())); + + // prepare the output + printf("Downloading %s...\n", url.toEncoded().constData()); + downloadTime.start(); +} + +void DownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal) +{ + progressBar.setStatus(bytesReceived, bytesTotal); + + // calculate the download speed + double speed = bytesReceived * 1000.0 / downloadTime.elapsed(); + QString unit; + if (speed < 1024) { + unit = "bytes/sec"; + } else if (speed < 1024*1024) { + speed /= 1024; + unit = "kB/s"; + } else { + speed /= 1024*1024; + unit = "MB/s"; + } + + progressBar.setMessage(QString::fromLatin1("%1 %2") + .arg(speed, 3, 'f', 1).arg(unit)); + progressBar.update(); +} + +void DownloadManager::downloadFinished() +{ + progressBar.clear(); + output.close(); + + if (currentDownload->error()) { + // download failed + fprintf(stderr, "Failed: %s\n", qPrintable(currentDownload->errorString())); + } else { + printf("Succeeded.\n"); + ++downloadedCount; + } + + currentDownload->deleteLater(); + startNextDownload(); +} + +void DownloadManager::downloadReadyRead() +{ + output.write(currentDownload->readAll()); +} -- cgit v1.2.3