public async Task <IQueryable> ExecuteOperationAsync(
OperationContext context, CancellationToken cancellationToken)
{
// Authorization check
await InvokeAuthorizers(context, cancellationToken);
// model build does not support operation with same name
// So method with same name but different signature is not considered.
MethodInfo method = context.ImplementInstance.GetType().GetMethod(
context.OperationName, BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy);
if (method == null)
{
throw new NotImplementedException(Resources.OperationNotImplemented);
}
var parameterArray = method.GetParameters();
var model = context.GetApiService <IEdmModel>();
// Parameters of method and model is exactly mapped or there is parsing error
var parameters = new object[parameterArray.Length];
int paraIndex = 0;
if (context.BindingParameterValue != null)
{
// Add binding parameter which is first parameter of method
parameters[0] = PrepareBindingParameter(parameterArray[0].ParameterType, context.BindingParameterValue);
paraIndex = 1;
}
for (; paraIndex < parameterArray.Length; paraIndex++)
{
var parameter = parameterArray[paraIndex];
var currentParameterValue = context.GetParameterValueFunc(parameter.Name);
object convertedValue = null;
if (context.IsFunction)
{
var parameterTypeRef = parameter.ParameterType.GetTypeReference(model);
// Change to right CLR class for collection/Enum/Complex/Entity
convertedValue = DeserializationHelpers.ConvertValue(
currentParameterValue,
parameter.Name,
parameter.ParameterType,
parameterTypeRef,
model,
context.Request,
context.ServiceProvider);
}
else
{
convertedValue = DeserializationHelpers.ConvertCollectionType(
currentParameterValue, parameter.ParameterType);
}
parameters[paraIndex] = convertedValue;
}
context.ParameterValues = parameters;
// Invoke preprocessing on the operation execution
PerformPreEvent(context, cancellationToken);
var result = await InvokeOperation(context.ImplementInstance, method, parameters, model);
// Invoke preprocessing on the operation execution
PerformPostEvent(context, cancellationToken);
return(result);
}
/// <summary>
/// Asynchronously executes an operation.
/// </summary>
/// <param name="context">
/// The operation context.
/// </param>
/// <param name="cancellationToken">
/// A cancellation token.
/// </param>
/// <returns>
/// A task that represents the asynchronous
/// operation whose result is a operation result.
/// </returns>
public async Task <IQueryable> ExecuteOperationAsync(OperationContext context, CancellationToken cancellationToken)
{
Ensure.NotNull(context, nameof(context));
// Authorization check
#pragma warning disable CA1062 // Validate arguments of public methods. JWS: Ensure.NotNull is there. Spurious warning.
await InvokeAuthorizers(context, cancellationToken).ConfigureAwait(false);
#pragma warning restore CA1062 // Validate arguments of public methods.
// model build does not support operation with same name
// So method with same name but different signature is not considered.
var method = context.Api.GetType().GetMethod(context.OperationName,
BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy);
if (method == null)
{
throw new NotImplementedException(Resources.OperationNotImplemented);
}
var parameterArray = method.GetParameters();
var model = await context.Api.GetModelAsync(cancellationToken).ConfigureAwait(false);
// Parameters of method and model is exactly mapped or there is parsing error
var parameters = new object[parameterArray.Length];
var paraIndex = 0;
if (context.BindingParameterValue != null)
{
// Add binding parameter which is first parameter of method
parameters[0] = PrepareBindingParameter(parameterArray[0].ParameterType, context.BindingParameterValue);
paraIndex = 1;
}
for (; paraIndex < parameterArray.Length; paraIndex++)
{
var parameter = parameterArray[paraIndex];
var currentParameterValue = context.GetParameterValueFunc(parameter.Name);
object convertedValue = null;
if (context.IsFunction)
{
var parameterTypeRef = parameter.ParameterType.GetTypeReference(model);
// Change to right CLR class for collection/Enum/Complex/Entity
convertedValue = DeserializationHelpers.ConvertValue(
currentParameterValue,
parameter.Name,
parameter.ParameterType,
parameterTypeRef,
model,
context.Request,
context.Request.GetRequestContainer()); // JWS: As long as OData requires the ServiceProvder,
// we have to provide it. DI abuse smell.
}
else
{
convertedValue = DeserializationHelpers.ConvertCollectionType(
currentParameterValue, parameter.ParameterType);
}
parameters[paraIndex] = convertedValue;
}
context.ParameterValues = parameters;
// Invoke preprocessing on the operation execution
await PerformPreEvent(context, cancellationToken).ConfigureAwait(false);
var result = await InvokeOperation(context.Api, method, parameters, model).ConfigureAwait(false);
// Invoke preprocessing on the operation execution
await PerformPostEvent(context, cancellationToken).ConfigureAwait(false);
return(result);
}
