/// <summary>Solve a QUBO problem</summary>
/// <returns>QUBO solved.</returns>
/// <exception cref="ApiException">A server side error occurred.</exception>
public System.Threading.Tasks.Task <QuboAPI> QuboAsync(QuboAPI body)
{
return(QuboAsync(body, System.Threading.CancellationToken.None));
}
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
/// <summary>Solve a QUBO problem</summary>
/// <returns>QUBO solved.</returns>
/// <exception cref="ApiException">A server side error occurred.</exception>
public async System.Threading.Tasks.Task <QuboAPI> QuboAsync(QuboAPI body, System.Threading.CancellationToken cancellationToken)
{
var urlBuilder_ = new System.Text.StringBuilder();
urlBuilder_.Append(BaseUrl != null ? BaseUrl.TrimEnd('/') : "").Append("/api/Qubo");
var client_ = _httpClient;
try
{
using (var request_ = new System.Net.Http.HttpRequestMessage())
{
var content_ = new System.Net.Http.StringContent(Newtonsoft.Json.JsonConvert.SerializeObject(body, _settings.Value));
content_.Headers.ContentType = System.Net.Http.Headers.MediaTypeHeaderValue.Parse("application/json");
request_.Content = content_;
request_.Method = new System.Net.Http.HttpMethod("POST");
request_.Headers.Accept.Add(System.Net.Http.Headers.MediaTypeWithQualityHeaderValue.Parse("text/plain"));
PrepareRequest(client_, request_, urlBuilder_);
var url_ = urlBuilder_.ToString();
request_.RequestUri = new System.Uri(url_, System.UriKind.RelativeOrAbsolute);
PrepareRequest(client_, request_, url_);
var response_ = await client_.SendAsync(request_, System.Net.Http.HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
try
{
var headers_ = System.Linq.Enumerable.ToDictionary(response_.Headers, h_ => h_.Key, h_ => h_.Value);
if (response_.Content != null && response_.Content.Headers != null)
{
foreach (var item_ in response_.Content.Headers)
{
headers_[item_.Key] = item_.Value;
}
}
ProcessResponse(client_, response_);
var status_ = ((int)response_.StatusCode).ToString();
if (status_ == "200")
{
var objectResponse_ = await ReadObjectResponseAsync <QuboAPI>(response_, headers_).ConfigureAwait(false);
return(objectResponse_.Object);
}
else
if (status_ == "500")
{
string responseText_ = (response_.Content == null) ? string.Empty : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new ApiException("Internal error, please contact support.", (int)response_.StatusCode, responseText_, headers_, null);
}
else
if (status_ != "200" && status_ != "204")
{
var responseData_ = response_.Content == null ? null : await response_.Content.ReadAsStringAsync().ConfigureAwait(false);
throw new ApiException("The HTTP status code of the response was not expected (" + (int)response_.StatusCode + ").", (int)response_.StatusCode, responseData_, headers_, null);
}
return(default(QuboAPI));
}
finally
{
if (response_ != null)
{
response_.Dispose();
}
}
}
}
finally
{
}
}
//solves a qubo problem by posting it to a Meta-Analytics AWS marketplace solver
static void Main(string[] args)
{
try
{
if (args.Length < 4)
{
//to solve QUBO model test.txt as with 20 seconds timout as a minimization problem
//C:/tmp/test.txt http://<load balancer>/api/QUBO 20 min
System.Console.WriteLine("usage QuboClient path_to_problem.txt solverUrl timeoutseconds min_or_max");
}
string sFilePath = args[0];
string sSolverUrl = args[1];
string sTimeOutInSeconds = args[2];
string sMinMax = args[3];
int nVariables = 0;
List <Points> inputData = QuboFileUtils.readQuboInputFromFile(sFilePath, out nVariables);
QuboAPI quboApi = new QuboAPI();
quboApi.Inputs = inputData;
quboApi.MinMax = 1; //maximize;
if (sMinMax.Equals("min"))
{
quboApi.MinMax = 0;
}
quboApi.Rows = nVariables;
quboApi.Timeout = Int32.Parse(sTimeOutInSeconds);
string sVal = quboApi.ToString();
HttpClient httpClient = new HttpClient();
QuboClient.Client quboClient = new QuboClient.Client(sSolverUrl, httpClient);
System.Threading.Tasks.Task <QuboAPI> solverTask = quboClient.QuboAsync(quboApi);
//Give the solver an additional 60 seconds to send the model
//over the network before timing out
int iTimeOutInMilliseconds = (60 + quboApi.Timeout) * 1000;
solverTask.Wait(); // iTimeOutInMilliseconds);
if (solverTask.IsCompletedSuccessfully)
{
double solutionValue = solverTask.Result.SolvedValue;
System.Console.WriteLine("solution value : " + solutionValue.ToString());
System.Text.StringBuilder sb = new System.Text.StringBuilder();
foreach (int variableResult in solverTask.Result.SolvedResult)
{
sb.Append(variableResult.ToString());
}
System.Console.WriteLine(sb.ToString());
}
else
{
System.Console.WriteLine("Task Failed");
}
}
catch (Exception error)
{
System.Console.WriteLine(error.Message);
}
}
