Download *DownloadManagerImpl::getDownloadByContactId(int contactId)
{
    QMutexLocker locker(&m_mutexLocker);
    for (int i = 0; i < m_downloadQueue.count(); i++) {
        Download *download = m_downloadQueue.at(i);
        if (download == 0)
            continue;
        Contact *contact = download->getContact();
        if (contact == 0)
            continue;
        if (contact->getId() == contactId)
            return download;
    }

    foreach(Download *download, m_downloadingList) {
        if (download == 0)
            continue;
        Contact *contact = download->getContact();
        if (contact == 0)
            continue;
        if (contact->getId() == contactId)
            return download;
    }

    return 0;
}
bool DownloadManagerImpl::removeDownloadByContactId(int contactId)
{
    QMutexLocker locker(&m_mutexLocker);
    for (int i = 0; i < m_downloadQueue.count(); i++) {
        Download *download = m_downloadQueue.at(i);
        if (download == 0)
            continue;
        Contact *contact = download->getContact();
        if (contact == 0)
            continue;
        if (contact->getId() == contactId) {
            m_downloadQueue.removeAt(i);
            // Free memory
            download->stop();
            download->deleteLater();
            return true;
        }
    }

    for (int i = 0; i < m_downloadingList.count(); i++) {
        Download *download = m_downloadingList.at(i);
        if (download == 0)
            continue;
        Contact *contact = download->getContact();
        if (contact == 0)
            continue;
        if (contact->getId() == contactId) {
            m_downloadingList.removeAt(i);
            // Free memory
            download->stop();
            download->deleteLater();
            return true;
        }
    }

    return false;
}
bool DownloadManagerImpl::isDownloadExistingInQueue(int contactId)
{
    for (int i = 0; i < m_downloadQueue.count(); i++) {
        Download *download = m_downloadQueue.at(i);
        if (download == 0)
            continue;
        Contact *contact = download->getContact();
        if (contact == 0)
            continue;
        if (contact->getId() == contactId)
            return true;
    }

    return false;
}