/// <summary>
/// Gets the resource response.
/// </summary>
/// <param name="uri">The URI of the request.</param>
/// <param name="args">The arguments to be used on the request.</param>
/// <returns></returns>
public override ResourceResponse GetResponse(string uri, NetworkResourceArguments args)
{
ResourceResponseCache response = new ResourceResponseCache(uri, args);
// find the item in the cache index
CacheIndex cacheIndex = CacheIndexMap.GetFromUri(uri);
CacheIndexItem cacheIndexItem = cacheIndex.Get(uri);
// ensure cache item is current
response.ReturnStatus = cacheIndex.EnsureCurrentCache(cacheIndexItem, args);
// store local references to cache index and item to prevent having to look up
// values again later.
response.CacheIndex = cacheIndex;
response.CacheIndexItem = cacheIndexItem;
// populate response data collection with cache index values;
response.Data.Add("RelativeUri", cacheIndexItem.RelativeUri);
response.Data.Add("AttemptToRefresh", cacheIndexItem.AttemptToRefresh.ToString());
response.Data.Add("Downloaded", cacheIndexItem.Downloaded.ToString());
response.Data.Add("Expiration", cacheIndexItem.Expiration.ToString());
response.Data.Add("IsExpired", cacheIndexItem.IsExpired.ToString());
response.Data.Add("IsStale", cacheIndexItem.IsStale.ToString());
response.Data.Add("ETag", cacheIndexItem.ETag);
return(response);
}
/// <summary>
/// method to initiate Prefetch processing based on provided manifest uri.
/// </summary>
/// <param name="manifestUri"></param>
public static void InitiatePrefetch(string manifestUri)
{
// if cache is not supported then don't bother prefetching.
if (Device.NetworkGetMethod == MonoCross.Utilities.Network.NetworkGetMethod.NoCache)
{
Device.Log.Debug("Cache is not supported, prefetch request ignored.");
return;
}
CacheManifest cacheManifest = CacheManifest.CreateFromUri(manifestUri);
CacheIndexMap.Add(cacheManifest);
Device.Thread.QueueIdle(CacheIndexMap.PreFetchIndexes);
Device.Thread.QueueIdle(CacheIndexMap.CleanIndexes);
}