/// <summary>
/// Executes before initiating the service instance.
/// </summary>
/// <param name="contractType"></param>
/// <param name="serviceName"></param>
/// <returns></returns>
protected InvocationInfo BeforeInvoke(Type contractType, string serviceName)
{
var factory = _internalsm.GetServiceFactory();
BaseServiceInfo serviceInfo = factory.GetServiceInfo(contractType, serviceName);
if (serviceInfo == null)
{
return(default(InvocationInfo));
}
//Invoke if there are any decorators.
if (DecoratorManager.GlobalDecorators.Count > 0 || (serviceInfo.Decorators != null && serviceInfo.Decorators.Length > 0))
{
ServiceCallContext callContext = ServiceCallContext.Create(contractType, serviceInfo.ServiceType, this);
InvokeDecorator(callContext, InvocationCase.Before, serviceInfo.Decorators);
return(new InvocationInfo()
{
ServiceInfo = serviceInfo, ServiceCallContext = callContext
});
}
return(new InvocationInfo()
{
ServiceInfo = serviceInfo
});
}
private void AfterInvoke(ServiceCallContext context, IEnumerable <DecoratorAttribute> decorators)
{
foreach (var decorator in decorators)
{
decorator.OnAfterInvoke(context);
}
}
/// <summary>
/// Executes decorator
/// </summary>
/// <param name="context">Specify the service call context object.</param>
/// <param name="case"></param>
/// <param name="localDecorators">Specify decorators of the contract.</param>
public void Execute(ServiceCallContext context, InvocationCase @case, IEnumerable <DecoratorAttribute> localDecorators)
{
switch (@case)
{
case InvocationCase.Before:
/*Invoke first global decorators and then local decorators*/
if (GlobalDecorators != null && GlobalDecorators.Count > 0)
{
BeforeInvoce(context, GlobalDecorators);
}
if (localDecorators != null)
{
BeforeInvoce(context, localDecorators);
}
break;
case InvocationCase.After:
/*Invoke first global decorators and then local decorators*/
if (GlobalDecorators != null && GlobalDecorators.Count > 0)
{
AfterInvoke(context, GlobalDecorators);
}
if (localDecorators != null)
{
AfterInvoke(context, localDecorators);
}
break;
}
}
/// <summary>
/// Executes after initiating the service instance.
/// </summary>
/// <param name="objectInstance"></param>
/// <param name="context"></param>
/// <param name="localDecorators"></param>
protected void AfterInvoke(object objectInstance, ServiceCallContext context, DecoratorAttribute[] localDecorators)
{
//Invoke if there are any decorators.
if (context != null && (DecoratorManager.GlobalDecorators.Count > 0 || (localDecorators != null && localDecorators.Length > 0)))
{
context.ServiceInstance = objectInstance;
InvokeDecorator(context, InvocationCase.After, localDecorators);
}
}
private void InvokeDecorator(ServiceCallContext context, InvocationCase @case, IEnumerable <DecoratorAttribute> localDecorators)
{
DecoratorManager.Execute(context, @case, localDecorators);
}
/// <summary>
/// Executes after invocation of the service, in this event, service instance
/// is accessible so that you can inject the data or dependencies that can be set through properties/fields.
/// </summary>
/// <param name="context">The context of the service</param>
public virtual void OnAfterInvoke(ServiceCallContext context)
{
}
/// <summary>
/// Executes before invocation of the service.
/// </summary>
/// <param name="context">The context of the service</param>
public virtual void OnBeforeInvoke(ServiceCallContext context)
{
}
