protected async override Task <Action <AsyncCodeActivityContext> > ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
{
IInvoker invoker = JavaScope.GetJavaInvoker(context);
var fieldName = FieldName.Get(context) ?? throw new ArgumentNullException(Resources.FieldName);
var javaObject = TargetObject.Get(context);
var className = TargetType.Get(context);
if (javaObject == null && className == null)
{
throw new InvalidOperationException(Resources.InvokationObjectException);
}
JavaObject instance;
try
{
instance = await invoker.InvokeGetField(javaObject, fieldName, className, cancellationToken);
}
catch (Exception e)
{
Trace.TraceError($"Could not get java field: {e}");
throw new InvalidOperationException(Resources.GetFieldException, e);
}
return(asyncCodeActivityContext =>
{
Result.Set(asyncCodeActivityContext, instance);
});
}
protected async override Task <Action <AsyncCodeActivityContext> > ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
{
IInvoker invoker = JavaScope.GetJavaInvoker(context);
var className = TargetType.Get(context);
if (string.IsNullOrWhiteSpace(className))
{
throw new ArgumentNullException(nameof(TargetType));
}
List <object> parameters = GetParameters(context);
JavaObject instance = null;
try
{
instance = await invoker.InvokeConstructor(className, parameters, parameters.Select(param => param?.GetType()).ToList(), cancellationToken);
}
catch (Exception e)
{
Trace.TraceError($"Constrcutor could not be invoker: {e.ToString()}");
throw new InvalidOperationException(Resources.ConstructorException, e);
}
return(asyncCodeActivityContext =>
{
Result.Set(asyncCodeActivityContext, instance);
});
}
protected async override Task <Action <AsyncCodeActivityContext> > ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
{
IInvoker invoker = JavaScope.GetJavaInvoker(context);
var methodName = MethodName.Get(context) ?? throw new ArgumentNullException(Resources.MethodName);
JavaObject javaObject = TargetObject.Get(context);
string className = TargetType.Get(context);
if (javaObject == null && string.IsNullOrWhiteSpace(className))
{
throw new InvalidOperationException(Resources.InvokationObjectException);
}
List <object> parameters = GetParameters(context);
var types = GetParameterTypes(context, parameters);
JavaObject instance = null;
try
{
instance = await invoker.InvokeMethod(methodName, className, javaObject, parameters, types, cancellationToken);
}
catch (Exception e)
{
Trace.TraceError($"The method could not be invoked: {e}");
throw new InvalidOperationException(Resources.InvokeMethodException, e);
}
return(asyncCodeActivityContext =>
{
Result.Set(asyncCodeActivityContext, instance);
});
}