private async Task <IReadOnlyDictionary <string, IValueProvider> > BindCoreAsync(ValueBindingContext context, object value, IDictionary <string, object> parameters)
{
Dictionary <string, IValueProvider> valueProviders = new Dictionary <string, IValueProvider>();
IValueProvider triggerProvider;
IReadOnlyDictionary <string, object> bindingData;
try
{
ITriggerData triggerData = await _triggerBinding.BindAsync(value, context);
triggerProvider = triggerData.ValueProvider;
bindingData = triggerData.BindingData;
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception exception)
{
triggerProvider = new BindingExceptionValueProvider(_triggerParameterName, exception);
bindingData = null;
}
valueProviders.Add(_triggerParameterName, triggerProvider);
BindingContext bindingContext = FunctionBinding.NewBindingContext(context, bindingData, parameters);
// Bind Singleton if specified
SingletonAttribute singletonAttribute = SingletonManager.GetFunctionSingletonOrNull(_descriptor.Method, isTriggered: true);
if (singletonAttribute != null)
{
string boundScopeId = _singletonManager.GetBoundScopeId(singletonAttribute.ScopeId, bindingData);
IValueProvider singletonValueProvider = new SingletonValueProvider(_descriptor.Method, boundScopeId, context.FunctionInstanceId.ToString(), singletonAttribute, _singletonManager);
valueProviders.Add(SingletonValueProvider.SingletonParameterName, singletonValueProvider);
}
foreach (KeyValuePair <string, IBinding> item in _nonTriggerBindings)
{
string name = item.Key;
IBinding binding = item.Value;
IValueProvider valueProvider;
try
{
if (parameters != null && parameters.ContainsKey(name))
{
valueProvider = await binding.BindAsync(parameters[name], context);
}
else
{
valueProvider = await binding.BindAsync(bindingContext);
}
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception exception)
{
valueProvider = new BindingExceptionValueProvider(name, exception);
}
valueProviders.Add(name, valueProvider);
}
return(valueProviders);
}
private async Task <IReadOnlyDictionary <string, IValueProvider> > BindCoreAsync(ValueBindingContext context, object value, IDictionary <string, object> parameters)
{
Dictionary <string, IValueProvider> valueProviders = new Dictionary <string, IValueProvider>();
IValueProvider triggerProvider;
IReadOnlyDictionary <string, object> bindingData;
IValueBinder triggerReturnValueProvider = null;
try
{
ITriggerData triggerData = await _triggerBinding.BindAsync(value, context);
triggerProvider = triggerData.ValueProvider;
bindingData = triggerData.BindingData;
triggerReturnValueProvider = (triggerData as TriggerData)?.ReturnValueProvider;
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception exception)
{
triggerProvider = new BindingExceptionValueProvider(_triggerParameterName, exception);
bindingData = null;
}
valueProviders.Add(_triggerParameterName, triggerProvider);
// Bind Singleton if specified
SingletonAttribute singletonAttribute = SingletonManager.GetFunctionSingletonOrNull(_descriptor, isTriggered: true);
if (singletonAttribute != null)
{
string boundScopeId = _singletonManager.GetBoundScopeId(singletonAttribute.ScopeId, bindingData);
IValueProvider singletonValueProvider = new SingletonValueProvider(_descriptor, boundScopeId, context.FunctionInstanceId.ToString(), singletonAttribute, _singletonManager);
valueProviders.Add(SingletonValueProvider.SingletonParameterName, singletonValueProvider);
}
BindingContext bindingContext = FunctionBinding.NewBindingContext(context, bindingData, parameters);
foreach (KeyValuePair <string, IBinding> item in _nonTriggerBindings)
{
string name = item.Key;
IBinding binding = item.Value;
IValueProvider valueProvider;
try
{
if (parameters != null && parameters.ContainsKey(name))
{
valueProvider = await binding.BindAsync(parameters[name], context);
}
else
{
valueProvider = await binding.BindAsync(bindingContext);
}
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception exception)
{
valueProvider = new BindingExceptionValueProvider(name, exception);
}
valueProviders.Add(name, valueProvider);
}
// Triggers can optionally process the return values of functions. They do so by declaring
// a "$return" key in their binding data dictionary and mapping it to an IValueBinder.
// An explicit return binding takes precedence over an implicit trigger binding.
if (!valueProviders.ContainsKey(FunctionIndexer.ReturnParamName))
{
if (triggerReturnValueProvider != null)
{
valueProviders.Add(FunctionIndexer.ReturnParamName, triggerReturnValueProvider);
}
}
return(valueProviders);
}
