protected async Task <IHttpActionResult> QueryAsync(string application, string service, string collection)
{
var serviceUri = GetServiceUri(application, service);
try
{
var query = Request.GetQueryNameValuePairs();
// Query one service partition, allowing the partition to do the distributed query.
var proxy = await GetServiceProxyAsync <IQueryableService>(serviceUri).ConfigureAwait(false);
var results = await proxy.QueryAsync(collection, query).ConfigureAwait(false);
// Construct the final, aggregated result.
var result = new ODataResult
{
ODataMetadata = "",
Value = results.Select(JsonConvert.DeserializeObject <JObject>),
};
return(Ok(result));
}
catch (Exception e)
{
return(HandleException(e, serviceUri));
}
}
private async Task QueryCollectionAsync(HttpContext httpContext, StatefulServiceContext serviceContext, IReliableStateManager stateManager, string collection, Guid partitionId)
{
if (partitionId != serviceContext.PartitionId)
{
// Query this partition.
await ForwardQueryCollectionAsync(httpContext, serviceContext, stateManager, collection, partitionId).ConfigureAwait(false);
return;
}
// Query the local reliable collection.
var query = httpContext.Request.Query.Select(p => new KeyValuePair <string, string>(p.Key, p.Value));
var results = await stateManager.QueryPartitionAsync(collection, query, partitionId, CancellationToken.None).ConfigureAwait(false);
httpContext.Response.ContentType = "application/json";
httpContext.Response.StatusCode = (int)HttpStatusCode.OK;
// Write the response.
var result = new ODataResult
{
ODataMetadata = "",
Value = results,
};
string response = JsonConvert.SerializeObject(result);
await httpContext.Response.WriteAsync(response).ConfigureAwait(false);
}
