public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
ActivityTriggerAttribute trigger = parameter.GetCustomAttribute <ActivityTriggerAttribute>(inherit: false);
if (trigger == null)
{
return(Task.FromResult <ITriggerBinding>(null));
}
// Priority for getting the name is [ActivityTrigger], [FunctionName], method name
string name = trigger.Activity;
if (string.IsNullOrEmpty(name))
{
MemberInfo method = context.Parameter.Member;
name = method.GetCustomAttribute <FunctionNameAttribute>()?.Name ?? method.Name;
}
// The activity name defaults to the method name.
var activityName = new FunctionName(name);
this.durableTaskConfig.RegisterActivity(activityName, null);
var binding = new ActivityTriggerBinding(this, parameter, trigger, activityName);
return(Task.FromResult <ITriggerBinding>(binding));
}
public Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
ParameterInfo parameter = context.Parameter;
ActivityTriggerAttribute trigger = parameter.GetCustomAttribute <ActivityTriggerAttribute>(inherit: false);
if (trigger == null)
{
return(Task.FromResult <ITriggerBinding>(null));
}
// The activity name defaults to the method name.
string activityName = trigger.Activity ?? parameter.Member.Name;
var binding = new ActivityTriggerBinding(
this,
parameter,
trigger,
activityName,
trigger.Version);
return(Task.FromResult <ITriggerBinding>(binding));
}
public ActivityTriggerBinding(
ActivityTriggerAttributeBindingProvider parent,
ParameterInfo parameterInfo,
ActivityTriggerAttribute attribute,
FunctionName activity)
{
this.parent = parent;
this.parameterInfo = parameterInfo;
this.attribute = attribute;
this.activityName = activity;
}
public ActivityTriggerBinding(
ActivityTriggerAttributeBindingProvider parent,
ParameterInfo parameterInfo,
ActivityTriggerAttribute attribute,
string activityName,
string activityVersion)
{
this.parent = parent;
this.parameterInfo = parameterInfo;
this.attribute = attribute;
this.activityName = activityName;
this.activityVersion = activityVersion;
}
public ActivityTriggerBinding(
ActivityTriggerAttributeBindingProvider parent,
ParameterInfo parameterInfo,
ActivityTriggerAttribute attribute,
FunctionName activity,
DurableTaskExtension durableTaskConfig)
{
this.parent = parent;
this.parameterInfo = parameterInfo;
this.attribute = attribute;
this.activityName = activity;
this.contract = GetBindingDataContract(parameterInfo);
this.durableTaskConfig = durableTaskConfig;
}
