private static object[] TryGetParameters(JsonRpcMessage request, MethodSignature method, HashSet <string> errors, JsonSerializer jsonSerializer, string requestMethodName)
{
Requires.NotNull(request, nameof(request));
Requires.NotNull(method, nameof(method));
Requires.NotNull(errors, nameof(errors));
Requires.NotNull(jsonSerializer, nameof(jsonSerializer));
Requires.NotNullOrEmpty(requestMethodName, nameof(requestMethodName));
if (!method.IsPublic)
{
errors.Add(string.Format(CultureInfo.CurrentCulture, Resources.MethodIsNotPublic, method));
return(null);
}
// ref and out parameters aren't supported.
if (method.HasOutOrRefParameters)
{
errors.Add(string.Format(CultureInfo.CurrentCulture, Resources.MethodHasRefOrOutParameters, method));
return(null);
}
if (request.Parameters != null && request.Parameters.Type == JTokenType.Object)
{
// If the parameter passed is an object, then we want to find the matching method with the same name and the method only takes a JToken as a parameter.
if (method.Parameters.Length != 1)
{
return(null);
}
if (method.Parameters[0].ParameterType != typeof(JToken))
{
return(null);
}
return(new object[] { request.Parameters });
}
// The number of parameters must fall within required and total parameters.
int paramCount = request.ParameterCount;
if (paramCount < method.RequiredParamCount || paramCount > method.TotalParamCountExcludingCancellationToken)
{
string methodParameterCount;
if (method.RequiredParamCount == method.TotalParamCountExcludingCancellationToken)
{
methodParameterCount = method.RequiredParamCount.ToString(CultureInfo.CurrentCulture);
}
else
{
methodParameterCount = string.Format(CultureInfo.CurrentCulture, "{0} - {1}", method.RequiredParamCount, method.TotalParamCountExcludingCancellationToken);
}
errors.Add(string.Format(
CultureInfo.CurrentCulture,
Resources.MethodParameterCountDoesNotMatch,
method,
methodParameterCount,
request.ParameterCount));
return(null);
}
// Parameters must be compatible
try
{
return(request.GetParameters(method.Parameters, jsonSerializer));
}
catch (Exception exception)
{
errors.Add(string.Format(CultureInfo.CurrentCulture, Resources.MethodParametersNotCompatible, method, exception.Message));
return(null);
}
}
internal MethodSignatureAndTarget(MethodSignature signature, object?target, SynchronizationContext?perMethodSynchronizationContext)
{
this.Signature = signature;
this.Target = target;
this.SynchronizationContext = perMethodSynchronizationContext;
}
private object[] TryGetParameters(JsonRpcMessage request, MethodSignature method, JsonSerializer jsonSerializer, string requestMethodName)
{
Requires.NotNull(request, nameof(request));
Requires.NotNull(method, nameof(method));
Requires.NotNull(jsonSerializer, nameof(jsonSerializer));
Requires.NotNullOrEmpty(requestMethodName, nameof(requestMethodName));
// ref and out parameters aren't supported.
if (method.HasOutOrRefParameters)
{
this.AddErrorMessage(string.Format(CultureInfo.CurrentCulture, Resources.MethodHasRefOrOutParameters, method));
return(null);
}
if (request.Parameters != null && request.Parameters.Type == JTokenType.Object)
{
// If the parameter passed is an object, then we want to find the matching method with the same name and the method only takes a JToken as a parameter,
// and possibly a CancellationToken
if (method.Parameters.Length < 1 || method.Parameters[0].ParameterType != typeof(JToken))
{
return(null);
}
if (method.Parameters.Length > 2)
{
// We don't support methods with more than two parameters.
return(null);
}
bool includeCancellationToken = method.Parameters.Length > 1 && method.Parameters[1].ParameterType == typeof(CancellationToken);
var args = new object[includeCancellationToken ? 2 : 1];
args[0] = request.Parameters;
if (includeCancellationToken)
{
args[1] = CancellationToken.None;
}
return(args);
}
// The number of parameters must fall within required and total parameters.
int paramCount = request.ParameterCount;
if (paramCount < method.RequiredParamCount || paramCount > method.TotalParamCountExcludingCancellationToken)
{
string methodParameterCount;
if (method.RequiredParamCount == method.TotalParamCountExcludingCancellationToken)
{
methodParameterCount = method.RequiredParamCount.ToString(CultureInfo.CurrentCulture);
}
else
{
methodParameterCount = string.Format(CultureInfo.CurrentCulture, "{0} - {1}", method.RequiredParamCount, method.TotalParamCountExcludingCancellationToken);
}
this.AddErrorMessage(string.Format(
CultureInfo.CurrentCulture,
Resources.MethodParameterCountDoesNotMatch,
method,
methodParameterCount,
request.ParameterCount));
return(null);
}
// Parameters must be compatible
try
{
return(request.GetParameters(method.Parameters, jsonSerializer));
}
catch (Exception exception)
{
this.AddErrorMessage(string.Format(CultureInfo.CurrentCulture, Resources.MethodParametersNotCompatible, method, exception.Message));
return(null);
}
}
