/// <summary>
/// Saves a FileCacheIndex object to the cache
/// </summary>
/// <param name="requestUrl"></param>
/// <param name="file"></param>
/// <param name="config"></param>
/// <param name="checksum"></param>
public static async Task saveAsync(string requestUrl, Stream file, IonConfig config, string checksum)
{
if (file == null)
{
return;
}
if (checksum == null)
{
checksum = "sha256:" + HashUtils.GetSHA256Hash(file);
}
FileCacheIndex cacheIndex = new FileCacheIndex(requestUrl, checksum, DateTimeUtils.now());
await CacheIndexStore.save(requestUrl, cacheIndex, config).ConfigureAwait(false);
}
/// <summary>
/// Retrieves a FileCacheIndex from cache
/// </summary>
/// <param name="requestURL"></param>
/// <param name="collectionIdentifier"></param>
/// <returns>FileCacheIndex object or null, if the index isn't found</returns>
public static async Task <FileCacheIndex> retrieveAsync(string requestUrl, IonConfig config)
{
return(await CacheIndexStore.retrieve <FileCacheIndex>(requestUrl, config).ConfigureAwait(false));
}
/// <summary>
/// Saves a pageCacheIndex to cache
/// </summary>
/// <param name="page"></param>
/// <param name="config"></param>
public static async Task save(IonPage page, IonConfig config)
{
string url = PagesURLs.getPageURL(config, page.identifier);
PageCacheIndex cacheIndex = new PageCacheIndex(url, page.last_changed);
await CacheIndexStore.save <PageCacheIndex>(url, cacheIndex, config).ConfigureAwait(false);
}
/// <summary>
/// Used to get a pageCacheIndex from cache
/// </summary>
/// <param name="requestURL"></param>
/// <param name="collectionIdentifier"></param>
/// <returns></returns>
public static async Task <PageCacheIndex> retrieve(string requestURL, IonConfig config)
{
return(await CacheIndexStore.retrieve <PageCacheIndex>(requestURL, config).ConfigureAwait(false));
}
/// <summary>
/// Saves a collectionCacheIndex to cache
/// </summary>
/// <param name="config"></param>
/// <param name="lastModified"></param>
public static async Task save(IonConfig config, DateTime lastModified)
{
string collectionURL = PagesURLs.getCollectionURL(config);
CollectionCacheIndex cacheIndex = new CollectionCacheIndex(collectionURL, DateTimeUtils.now().ToUniversalTime(), lastModified);
await CacheIndexStore.save(collectionURL, cacheIndex, config).ConfigureAwait(false);
}
/// <summary>
/// Retrieves a collection cache index either from memory or file cache
/// </summary>
/// <param name="config"></param>
/// <returns>Cache index or null, if no cache index was found</returns>
public static async Task <CollectionCacheIndex> retrieve(IonConfig config)
{
String requestUrl = PagesURLs.getCollectionURL(config);
return(await CacheIndexStore.retrieve <CollectionCacheIndex>(requestUrl, config).ConfigureAwait(false));
}
