public static Tuple <int[][], int[][]> GetDataAsync(int matrixSize, string apiUri)
{
int[][] AmatrixRow = new int[matrixSize][];
int[][] BmatrixCol = new int[matrixSize][];
// setup an async task list to loop thru completed requests
List <Task> TaskList = new List <Task>();
// download all data at once
for (int i = 0; i < matrixSize; i++)
{
// make requests to row and column data
var getMatrixARowTask = InvestCloudAPI.GetAsync(apiUri + "numbers/A/row/", i, true);
TaskList.Add(getMatrixARowTask);
// matrix B are stored as columns because it makes the AxB multiply matrix easier
var getMatrixBColTask = InvestCloudAPI.GetAsync(apiUri + "numbers/B/col/", i, false);
TaskList.Add(getMatrixBColTask);
}
// wait for downloads to finish
Task.WaitAll(TaskList.ToArray());
// loop thru tasks and store result in their respective matrices
foreach (Task <Tuple <string, int, bool> > t in TaskList)
{
if (t.Result.Item3)
{
string resultMatrixARow = t.Result.Item1;
DataResponse resultMatrixAResponse = JsonConvert.DeserializeObject <DataResponse>(resultMatrixARow);
AmatrixRow[t.Result.Item2] = resultMatrixAResponse.value;
}
else
{
string resultMatrixBCol = t.Result.Item1;
DataResponse resultMatrixBResponse = JsonConvert.DeserializeObject <DataResponse>(resultMatrixBCol);
BmatrixCol[t.Result.Item2] = resultMatrixBResponse.value;
}
}
return(new Tuple <int[][], int[][]>(AmatrixRow, BmatrixCol));
}
static void Main(string[] args)
{
System.Net.ServicePointManager.DefaultConnectionLimit = 200;
int matrixSize = 1000;
bool verbose = false;
int[][] AmatrixRow;
int[][] BmatrixCol;
string apiUri = "https://recruitment-test.investcloud.com/api/";
var watchOverall = System.Diagnostics.Stopwatch.StartNew();
var watch = System.Diagnostics.Stopwatch.StartNew();
// set up initialization GET Request
var JSONObj = InvestCloudAPI.Get(apiUri + "numbers/init/" + matrixSize);
InitResponse initResponse = JsonConvert.DeserializeObject <InitResponse>(JSONObj);
watch.Stop();
Console.WriteLine($"init value: {initResponse.value}");
Console.WriteLine($"init time: { watch.ElapsedMilliseconds} ms");
// get matrix data
watch = System.Diagnostics.Stopwatch.StartNew();
var getDataAsync = GetDataAsync2(matrixSize, apiUri);
AmatrixRow = getDataAsync.Item1;
BmatrixCol = getDataAsync.Item2;
if (verbose)
{
for (int i = 0; i < matrixSize; i++)
{
if (i == 0)
{
Console.WriteLine();
Console.Write("[");
}
for (int j = 0; j < matrixSize; j++)
{
Console.Write(AmatrixRow[i][j] + " ");
}
if (i == matrixSize - 1)
{
Console.Write("]");
}
else
{
Console.WriteLine();
}
}
for (int i = 0; i < matrixSize; i++)
{
if (i == 0)
{
Console.WriteLine();
Console.Write("[");
}
for (int j = 0; j < matrixSize; j++)
{
Console.Write(BmatrixCol[j][i] + " ");
}
if (i == matrixSize - 1)
{
Console.Write("]");
}
else
{
Console.WriteLine();
}
}
}
watch.Stop();
Console.WriteLine($"download time: {watch.ElapsedMilliseconds} ms");
// perform multiplication
watch = System.Diagnostics.Stopwatch.StartNew();
string AxB = MultiplyAndSerialize2(AmatrixRow, BmatrixCol, matrixSize);
if (verbose)
{
Console.WriteLine();
Console.WriteLine($"AxBmatrix: {AxB}");
}
// generate hash
string md5 = CalculateMD5Hash(AxB);
watch.Stop();
Console.WriteLine($"hash: {md5}");
Console.WriteLine($"multiplication and hash time: {watch.ElapsedMilliseconds} ms");
// validate response with server
JSONObj = InvestCloudAPI.Post(apiUri + "numbers/validate", md5, "text/json;charset=utf-8");
ValidateResponse validateResponse = JsonConvert.DeserializeObject <ValidateResponse>(JSONObj);
Console.WriteLine($"result: {validateResponse.value}");
watchOverall.Stop();
Console.WriteLine($"total time: {watchOverall.ElapsedMilliseconds} ms");
Console.WriteLine("press any key to exit");
Console.ReadLine();
}
