C++ ItemLocation::IsValid方法代码示例

QNetworkRequest ItemsManagerWorker::MakeCharacterRequest(const std::string &name, const ItemLocation &location) {
    QUrlQuery query;
    query.addQueryItem("character", name.c_str());
    query.addQueryItem("accountName", account_name_.c_str());

    QUrl url(kCharacterItemsUrl);
    url.setQuery(query);

    TabCache::Flags flags;
    if (!location.IsValid() || bo_manager_.GetRefreshChecked(location))
        flags |= TabCache::Refresh;

    return Request(url, location, flags);
}

QNetworkRequest ItemsManagerWorker::MakeTabRequest(int tab_index, const ItemLocation &location, bool tabs) {
    QUrlQuery query;
    query.addQueryItem("league", league_.c_str());
    query.addQueryItem("tabs", tabs ? "1" : "0");
    query.addQueryItem("tabIndex", QString::number(tab_index));
    query.addQueryItem("accountName", account_name_.c_str());

    QUrl url(kStashItemsUrl);
    url.setQuery(query);

    TabCache::Flags flags;
    if (tabs) flags |= TabCache::Refresh;

    if (!location.IsValid() || bo_manager_.GetRefreshChecked(location))
        flags |= TabCache::Refresh;

    return Request(url, location, flags);
}

QNetworkRequest TabCache::Request(const QUrl &url, const ItemLocation &location, Flags flags) {
    QNetworkRequest request{url};

    // The cache policy exists so it can override normal behavior for a given refresh.
    // Based on the current policy we may ignore refresh requests, or force refreshes
    // even if none was specifed with 'flags'.
    switch (cache_policy_) {
    case DefaultCache:
        // This is the default policy, where we honor cache policy as specified by 'flags'
        // Evict this request from the cache if refresh is requested
        if (flags.testFlag(Refresh))
            remove(url);
        break;
    case AlwaysCache:
        // By default we always try to hit in the cache, so this policy just allows
        // the normal cache mechanism to do its job and it will basically grab everything
        // from the cache that is available for all network requests
        break;
    case NeverCache:
        // We've already fully flushed the cache in OnPolicyUpdate, so nothing to do here.
        break;
    case ManualCache:
        // The case involves refreshing only an explicitily specified set of named tabs, customers
        // use AddManualRefresh to indicate what set of tabs to refresh before triggering a refresh
        // all other network requests will come from the cache if available
        if (location.IsValid() && manual_refresh_.count(location.GetUniqueHash()))
            remove(url);
        break;
    default:
        QLOG_ERROR() << "TabCache::Request Failed to handle all cache policy cases";
        break;
    };

    // At this point we've evicted any request that should be refreshed, so we always
    // tell the 'real' request to prefer but not require the entry be in the cache.
    // If it is not in the cache it will be fetched from the network regardless.
    request.setAttribute(QNetworkRequest::CacheSaveControlAttribute, QNetworkRequest::PreferCache);

    return request;
}

void TabCache::AddManualRefresh( const ItemLocation &location) {
    if (location.IsValid())
        manual_refresh_.insert(location.GetUniqueHash());
}