/// <summary>
/// Resolves the handler for the specific config item.
/// </summary>
public static IHandler Resolve(MethodInfo methodInfo, object[] arguments)
{
var configuration = (Configuration)ServiceLocator.Current.GetInstance<IConfiguration>();
var methodConfig = ServiceLocator.Current.GetInstance<IMethodContainer>();
IMethod metaData = methodConfig.Get(methodInfo, arguments);
var configItem = configuration.GetConfigItem(metaData);
IHandler handler = new BaseMethodHandler();
if (configItem != null)
{
if (configItem.CacheDuration.TotalMilliseconds > 0)
{
string containerId = (ServiceLocator.Current as Locator.AutoBoxServiceLocator).TypeContainer.Id;
string compositeKey = string.Format("{0}+{1}", metaData.Key, containerId);
handler = new CacheMethodHandler(compositeKey, configItem.CacheDuration, configItem.InValidated, arguments);
if (configItem.InValidated) configItem.InValidated = false;
}
// has items to invalidate.
configItem.InvalidateDependencies();
}
return handler;
}
/// <summary>
/// Returns the cached object. When new it the first stores then returns the cached item.
/// </summary>
/// <param name="target">Target object</param>
/// <param name="invocation">Target invocation</param>
public object Invoke(object target, IMethodInvocation invocation)
{
var provider = CacheProviderFactory.Create();
string cacheKey = this.GetUniqueKey();
object result = invalidated ? null : provider.GetObject(cacheKey);
JsonSerializer serializer = new JsonSerializer()
{
NullValueHandling = NullValueHandling.Ignore
};
if (result == null)
{
result = new BaseMethodHandler().Invoke(target, invocation);
var builder = new StringBuilder();
using (var writer = new StringWriter(builder))
{
serializer.Serialize(new JsonTextWriter(writer), result);
}
string content = builder.ToString();
provider.SetObject(cacheKey, content, DateTime.Now.AddMilliseconds(cacheDuration.TotalMilliseconds));
return result;
}
using (var reader = new StringReader((string)result))
{
result = serializer.Deserialize(new JsonTextReader(reader), invocation.Method.ReturnType);
}
return result;
}
