public static string SendEndSignal(string configUUID, string host_addr, CustomLogger clog)
{
// Create a request using a URL that can receive a post.
WebRequest analysisRequest = WebRequest.Create(host_addr);
analysisRequest.Method = "GET";
// Set the Config-GUID header
analysisRequest.Headers["Config-GUID"] = configUUID;
string analysisResponse = "[ProducerAzure] Default analysis response";
try
{
HttpWebResponse endResponse = (HttpWebResponse)analysisRequest.GetResponse();
if (endResponse.StatusCode != HttpStatusCode.OK)
{
clog.RawLog(LogLevel.ERROR, "[ProducerAzure] Bad consumer analysis status");
}
using (Stream responseStream = endResponse.GetResponseStream())
{
// Open the stream using a StreamReader for easy access and read the content
analysisResponse = new StreamReader(responseStream).ReadToEnd();
}
//analysisResponse = endResponse.StatusDescription;
endResponse.Close();
}
catch (WebException)
{
clog.RawLog(LogLevel.ERROR, "Got Web exception!");
}
return(analysisResponse);
}
public static string SendConsumerConfig(string configUUID, string configData, string host_addr, CustomLogger clog)
{
// Create a request using a URL that can receive a post.
WebRequest configRequest = WebRequest.Create(host_addr);
configRequest.Method = "POST";
// Convert POST data to a byte array.
byte[] byteConfigArray = Encoding.UTF8.GetBytes(configData);
// Set the ContentType property of the WebRequest.
configRequest.ContentType = "application/json";
// Set the Config-GUID header
configRequest.Headers["Config-GUID"] = configUUID;
// Set the ContentLength property of the WebRequest.
configRequest.ContentLength = byteConfigArray.Length;
// Get the request stream.
Stream configDataStream = configRequest.GetRequestStream();
// Write the data to the request stream.
configDataStream.Write(byteConfigArray, 0, byteConfigArray.Length);
// Close the Stream object.
configDataStream.Close();
// Get the response.
string consumerResponse = "[SendConsumerConfig] Default Consumer Response";
try
{
HttpWebResponse response = (HttpWebResponse)configRequest.GetResponse();
using (Stream cfgDataStream = response.GetResponseStream())
{
// Open the stream using a StreamReader for easy access & Read content.
consumerResponse = new StreamReader(cfgDataStream).ReadToEnd();
clog.RawLog(LogLevel.INFO, consumerResponse);
}
response.Close();
}
catch (WebException)
{
clog.RawLog(LogLevel.ERROR, "[SendConsumerConfig] Got WebException when sending consumer config!");
}
return(consumerResponse);
}
// Sends one data record
public void SendRecord(IProducerToConsumerAdpt adpt, string uuid, string receiver_addr, CustomLogger log)
{
JObject record = recordGenerator.GenerateRecord();
log.RawLog(LogLevel.INFO, $"[Producer] Generated Data Record: {record}");
adpt.Send(record, uuid, receiver_addr); //TODO: Uncomment me to test connection with consumer!
this.Amount--;
}
public static void ProduceAndSend(string configUUID, FullConfig producerConfig, string host_addr, CustomLogger log)
{
Producer producer = new Producer(producerConfig.records_count, producerConfig.fields, producerConfig.error_rate);
// Generate and Send Data Records
host_addr = host_addr ?? LOCAL_HOST;
ProducerToDefaultConsumerAddpt adapter = new ProducerToDefaultConsumerAddpt();
for (int counter = producerConfig.records_count; counter > 0; counter--)
{
try
{
producer.SendRecord(adapter, configUUID, host_addr, log);
}
catch (WebException webExcp)
{
log.RawLog(LogLevel.ERROR, $"[ERROR] Got WebException {webExcp} while sending {counter}th record!");
}
}
;
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req)
{
customLog.RawLog(LogLevel.INFO, "ProducerAzure HTTP trigger function start to process a request...");
// Get Configuration json
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic httpData = JsonConvert.DeserializeObject(requestBody);
JObject jConfigData = (JObject)httpData;
// Parse Configuration json
string?cfgName = (string)jConfigData.GetValue("config_name");
if (cfgName == null)
{
customLog.RawLog(LogLevel.WARN, "[ProducerAzure] Got empty Config Name, using default name");
cfgName = "Default Config";
}
string configHostAddr = (string)jConfigData.GetValue("config_url");
if (configHostAddr == null)
{
return(new BadRequestObjectResult(
"[ProducerAzure] Please specify consumer CONFIG endpoint in the config input!"));
}
string dataHostAddr = (string)jConfigData.GetValue("data_url");
if (dataHostAddr == null)
{
return(new BadRequestObjectResult(
"[ProducerAzure] Please specify consumer DATA endpoint in the config input!"));
}
// NOTE: consumer behavior differs only in whether it sends back analysis
string team = (string)jConfigData.GetValue("consumer_team");
if (team == null)
{
return(new BadRequestObjectResult(
"[ProducerAzure] Please specify WHICH consumer you are procuding to!"));
}
string analysisHostAddr = (string)jConfigData.GetValue("analysis_url");
if (analysisHostAddr == null & team == "A")
{
return(new BadRequestObjectResult(
"[ProducerAzure] Please specify consumer ANALYSIS endpoint in the config input!"));
}
JObject consumerCfg = (JObject)jConfigData.GetValue("consumer_config");
if (consumerCfg == null)
{
return(new BadRequestObjectResult(
"[ProducerAzure] Consumer config cannot be null!"));
}
JObject producerCfg = (JObject)jConfigData.GetValue("producer_config");
FullConfig?parsedProducerCfg = Util.ParseConfig(producerCfg);
if (parsedProducerCfg == null)
{
return(new BadRequestObjectResult(
"[ProducerAzure] Incorrect Producer config format!"));
}
customLog.RawLog(LogLevel.INFO, $"[ProducerAzure] Successfully parsed configuration: {cfgName}");
// Send ConsumerConfig as JSON string
string configUUID = Guid.NewGuid().ToString();
string configResponse = MessageSender.SendConsumerConfig(configUUID, consumerCfg.ToString(), configHostAddr, customLog);
customLog.RawLog(LogLevel.INFO, $"[ProducerAzure] Config Response: {configResponse}");
// Producer generates data and send to consumer
customLog.RawLog(LogLevel.INFO, "[ProducerAzure] Start to generate data and send to consumer...");
MessageSender.ProduceAndSend(configUUID, parsedProducerCfg.Value, dataHostAddr, customLog);
// Producer sends end signal
string?analysisResponse = null;
if (team == "A")
{
analysisResponse = MessageSender.SendEndSignal(configUUID, analysisHostAddr, customLog);
customLog.RawLog(LogLevel.INFO, $"[ProducerAzure] End Signal Response: {analysisResponse}");
}
return((cfgName != null & dataHostAddr != null & configHostAddr != null)
? (ActionResult) new OkObjectResult(
Util.FormatProducerResult(configUUID, cfgName, jConfigData.ToString(), analysisResponse))
: new BadRequestObjectResult(
$"[ProducerAzure] Got exception during data transfer!"));
}
