public static CosmosQueryResponse ConvertToCosmosQueryResponse(
FeedResponse <CosmosElement> dynamicFeed,
CosmosSerializationOptions cosmosSerializationOptions)
{
IJsonWriter jsonWriter;
if (cosmosSerializationOptions != null)
{
jsonWriter = cosmosSerializationOptions.CreateCustomWriterCallback();
}
else
{
jsonWriter = JsonWriter.Create(JsonSerializationFormat.Text);
}
jsonWriter.WriteArrayStart();
foreach (CosmosElement cosmosElement in dynamicFeed)
{
cosmosElement.WriteTo(jsonWriter);
}
jsonWriter.WriteArrayEnd();
MemoryStream memoryStream = new MemoryStream(jsonWriter.GetResult());
return(new CosmosQueryResponse(
dynamicFeed.Headers,
memoryStream,
dynamicFeed.Count,
dynamicFeed.ResponseContinuation,
dynamicFeed.QueryMetrics));
}
/// <summary>
/// DEVNOTE: Need to refactor to use CosmosJsonSerializer
/// Todo: This method can be optimized by not writing the result out to text.
/// </summary>
public static DocumentFeedResponse <T> ConvertCosmosElementFeed <T>(
DocumentFeedResponse <CosmosElement> dynamicFeed,
ResourceType resourceType,
JsonSerializerSettings settings)
{
if (dynamicFeed.Count == 0)
{
return(new DocumentFeedResponse <T>(
new List <T>(),
dynamicFeed.Count,
dynamicFeed.Headers,
dynamicFeed.UseETagAsContinuation,
dynamicFeed.QueryMetrics,
dynamicFeed.RequestStatistics,
dynamicFeed.DisallowContinuationTokenMessage,
dynamicFeed.ResponseLengthBytes));
}
IJsonWriter jsonWriter = JsonWriter.Create(JsonSerializationFormat.Text);
jsonWriter.WriteArrayStart();
foreach (CosmosElement cosmosElement in dynamicFeed)
{
cosmosElement.WriteTo(jsonWriter);
}
jsonWriter.WriteArrayEnd();
ReadOnlyMemory <byte> buffer = jsonWriter.GetResult();
string jsonText = Utf8StringHelpers.ToString(buffer);
IEnumerable <T> typedResults;
// If the resource type is an offer and the requested type is either a Offer or OfferV2 or dynamic
// create a OfferV2 object and cast it to T. This is a temporary fix until offers is moved to v3 API.
if (resourceType == ResourceType.Offer &&
(typeof(T).IsSubclassOf(typeof(Documents.Resource)) || typeof(T) == typeof(object)))
{
typedResults = JsonConvert.DeserializeObject <List <OfferV2> >(jsonText, settings).Cast <T>();
}
else
{
typedResults = JsonConvert.DeserializeObject <List <T> >(jsonText, settings);
}
return(new DocumentFeedResponse <T>(
typedResults,
dynamicFeed.Count,
dynamicFeed.Headers,
dynamicFeed.UseETagAsContinuation,
dynamicFeed.QueryMetrics,
dynamicFeed.RequestStatistics,
dynamicFeed.DisallowContinuationTokenMessage,
dynamicFeed.ResponseLengthBytes));
}
/// <summary>
/// DEVNOTE: Need to refactor to use CosmosJsonSerializer
/// </summary>
public static FeedResponse <T> ConvertCosmosElementFeed <T>(
FeedResponse <CosmosElement> dynamicFeed,
ResourceType resourceType,
CosmosJsonSerializer jsonSerializer)
{
if (dynamicFeed.Count == 0)
{
return(new FeedResponse <T>(
new List <T>(),
dynamicFeed.Count,
dynamicFeed.Headers,
dynamicFeed.UseETagAsContinuation,
dynamicFeed.QueryMetrics,
dynamicFeed.RequestStatistics,
dynamicFeed.DisallowContinuationTokenMessage,
dynamicFeed.ResponseLengthBytes));
}
IJsonWriter jsonWriter = JsonWriter.Create(JsonSerializationFormat.Text);
jsonWriter.WriteArrayStart();
foreach (CosmosElement cosmosElement in dynamicFeed)
{
cosmosElement.WriteTo(jsonWriter);
}
jsonWriter.WriteArrayEnd();
MemoryStream stream = new MemoryStream(jsonWriter.GetResult());
IEnumerable <T> typedResults;
// If the resource type is an offer and the requested type is either a Offer or OfferV2 or dynamic
// create a OfferV2 object and cast it to T. This is a temporary fix until offers is moved to v3 API.
if (resourceType == ResourceType.Offer &&
(typeof(T).IsSubclassOf(typeof(Resource)) || typeof(T) == typeof(object)))
{
typedResults = jsonSerializer.FromStream <List <OfferV2> >(stream).Cast <T>();
}
else
{
typedResults = jsonSerializer.FromStream <List <T> >(stream);
}
return(new FeedResponse <T>(
typedResults,
dynamicFeed.Count,
dynamicFeed.Headers,
dynamicFeed.UseETagAsContinuation,
dynamicFeed.QueryMetrics,
dynamicFeed.RequestStatistics,
dynamicFeed.DisallowContinuationTokenMessage,
dynamicFeed.ResponseLengthBytes));
}
