protected TOutput ParseResponse <TOutput>(TTransportData response, IVkMethod <TOutput> method, ExecuteEnvironment environment)
{
var methodVisitor = this.CreateMethodVisitor(response, environment);
var error = methodVisitor.GetError();
if (error != null)
{
throw new Exception($"An error with code {error.ErrorCode} was occured during method {method.Name} execution. Error text: {error.ErrorMsg}");
}
return(method.Accept(methodVisitor, methodVisitor.Data));
}
public TOutput Execute <TOutput>(IVkMethod <TOutput> method)
{
var env = this.CreateEnvironment();
TOutput result;
do
{
env.NeedResend = false;
var parameters = this.PrepareRequestParameters(method, env);
var request = this.CreateRequest(parameters, method, env);
var response = this.TransmitRequest(request, env);
result = this.ParseResponse(response, method, env);
} while (env.NeedResend);
return(result);
}
protected override Dictionary <String, String> PrepareRequestParameters(IVkMethod method, ExecuteEnvironment environment)
{
var properties = method.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public);
var parameters = new Dictionary <String, String>();
foreach (var propertyInfo in properties)
{
var attr = propertyInfo.GetCustomAttributes(typeof(VkParamAttribute), true);
if (attr.Length <= 0)
{
continue;
}
var mpa = (VkParamAttribute)attr[0];
if (propertyInfo.PropertyType == typeof(Boolean?))
{
var boolValue = (bool?)propertyInfo.GetValue(method, null);
if (boolValue.HasValue)
{
parameters.Add(mpa.Name, GetBoolValue(boolValue.Value));
}
}
if (propertyInfo.PropertyType == typeof(String))
{
var stringValue = (String)propertyInfo.GetValue(method, null);
if (stringValue != null)
{
parameters.Add(mpa.Name, stringValue);
}
}
if (propertyInfo.PropertyType == typeof(List <String>))
{
var listValue = (List <String>)propertyInfo.GetValue(method, null);
if (listValue != null && listValue.Count > 0)
{
parameters.Add(mpa.Name, GetStringList(listValue));
}
}
if (propertyInfo.PropertyType == typeof(Int32?))
{
var intValue = (Int32?)propertyInfo.GetValue(method, null);
if (intValue.HasValue)
{
parameters.Add(mpa.Name, GetInt32(intValue.Value, environment.Culture));
}
}
if (propertyInfo.PropertyType == typeof(UInt32?))
{
var intValue = (UInt32?)propertyInfo.GetValue(method, null);
if (intValue.HasValue)
{
parameters.Add(mpa.Name, GetUInt32(intValue.Value, environment.Culture));
}
}
if (propertyInfo.PropertyType == typeof(DateTime?))
{
var dateTimeValue = (DateTime?)propertyInfo.GetValue(method, null);
if (dateTimeValue.HasValue)
{
parameters.Add(mpa.Name, GetDateTime(dateTimeValue.Value, environment.Culture));
}
}
if (propertyInfo.PropertyType == typeof(Guid?))
{
var guidValue = (Guid?)propertyInfo.GetValue(method, null);
if (guidValue.HasValue)
{
parameters.Add(mpa.Name, GetGuid(guidValue.Value, environment.Culture));
}
}
if (propertyInfo.PropertyType == typeof(Double?))
{
var doubleValue = (Double?)propertyInfo.GetValue(method, null);
if (doubleValue.HasValue)
{
parameters.Add(mpa.Name, GetDouble(doubleValue.Value, environment.Culture));
}
}
}
if (environment.PrepareParametersExtension != null)
{
environment.PrepareParametersExtension(parameters);
environment.PrepareParametersExtension = null;
}
return(parameters);
}
protected override String CreateRequest(Dictionary <String, String> requestParameters, IVkMethod method, ExecuteEnvironment ee)
{
if (requestParameters.Count == 0)
{
throw new Exception($"При формировании запроса для метода {method.Name} не были заданы входные параметры");
}
var sb = new StringBuilder();
int i = 1;
foreach (var pair in requestParameters)
{
sb.Append(pair.Key).Append("=").Append(pair.Value);
if (i < requestParameters.Count)
{
sb.Append("&");
}
i++;
}
var queryString = sb.ToString();
if (this.AuthenticationProvider.IsAuthenticated)
{
if (method.NeedAuthentication)
{
var r = String.Format(WithAccessTokenTemlate, method.Name, queryString, this.AuthenticationProvider.AccessToken);
//this.Log.WriteInfo(String.Format("Id: {0}; Запрос: {1}", ee.Id, r));
return(r);
}
var r2 = String.Format(WithoutAccessTokenTemlate, method.Name, queryString);
//this.Log.WriteInfo(String.Format("Id: {0}; Запрос: {1}", ee.Id, r2));
return(r2);
}
if (method.NeedAuthentication)
{
throw new Exception($"Метод {method.Name} нельзя вызывать без проведенной аутентификации");
}
var r3 = String.Format(WithoutAccessTokenTemlate, method.Name, queryString);
//this.Log.WriteInfo(String.Format("Id: {0}; Запрос: {1}", ee.Id, r3));
return(r3);
}
protected abstract TTransportData CreateRequest(Dictionary <String, String> requestParameters, IVkMethod method, ExecuteEnvironment ee);
protected abstract Dictionary <String, String> PrepareRequestParameters(IVkMethod method, ExecuteEnvironment environment);
