private object GetLocalService(
string sAppName,
string sServiceName,
string sServiceInstanceName)
{
// Validate sAppName
if (!StringUtil.IsStringInitialized(sAppName))
{
ExceptionUtil.RaiseArgumentNullException(
"sAppName",
"sAppName parameter must be initialized",
MethodInfo.GetCurrentMethod());
}
// Validate sServiceName
if (!StringUtil.IsStringInitialized(sServiceName))
{
ExceptionUtil.RaiseArgumentNullException(
"sServiceName",
"sServiceName parameter must be initialized",
MethodInfo.GetCurrentMethod());
}
// Validate sServiceInstanceName
if (!StringUtil.IsStringInitialized(sServiceInstanceName))
{
ExceptionUtil.RaiseArgumentNullException(
"sServiceInstanceName",
"sServiceInstanceName parameter must be initialized",
MethodInfo.GetCurrentMethod());
}
ITisServiceProvider oServiceProvider = null;
// Get service provider for the application
oServiceProvider = m_oServiceProvidersCache.GetServiceProvider(sAppName);
ITisServiceInfo oServiceInfo =
CheckedGetServiceInfo(sAppName, sServiceName);
// Create service key
TisServiceKey oKey = new TisServiceKey(
sServiceName,
sServiceInstanceName,
oServiceInfo);
object oService = oServiceProvider.GetService(
oKey);
return(oService);
}
public void ReleaseService(
string applicationName,
string serviceName,
string serviceInstanceName = TisServicesConst.UNNAMED_INSTANCE)
{
ITisServiceProvider serviceProvider = m_oServiceProvidersCache.GetServiceProvider(applicationName);
ITisServiceInfo serviceInfo =
CheckedGetServiceInfo(applicationName, serviceName);
TisServiceKey serviceKey = new TisServiceKey(
serviceName,
serviceInstanceName);
serviceProvider.ReleaseService(serviceKey, serviceInfo);
}
public TisServiceCache(
ITisServiceProvider oServicesActivator,
string sAppName)
{
m_sAppName = sAppName;
// Keep the service provider
m_oServicesActivator = oServicesActivator;
// Create services cache
m_oServicesCache = new MRUCache(
false // DisposeOnRevoke
);
// Subscribe to the cache "OnCacheMiss" event
m_oServicesCache.OnCacheMiss +=
new CacheMissEvent(ServicesCache_OnCacheMiss);
}
//
// Private methods
//
private object OnCacheMissHandler(object oSender, CacheMissEventArgs oArgs)
{
// Obtain application
string sAppName = (string)oArgs.Key;
// Use factory to return the new object
ITisServiceProvider oServiceProvider =
m_oFactory.CreateServiceProvider(sAppName);
if (oServiceProvider is ITisServiceLifetimeManager)
{
FireOnLifetimeManagerActivate(
sAppName,
(ITisServiceLifetimeManager)oServiceProvider);
}
return(oServiceProvider);
}
private void OnCacheRevokeHandler(object oSender, CacheRevokeEventArgs oArgs)
{
if (oArgs.EventTiming != CacheRevokeEventArgs.Timing.Post)
{
return;
}
string sAppName = (string)oArgs.Key;
ITisServiceProvider oServiceProvider =
(ITisServiceProvider)oArgs.Value;
if (oServiceProvider is ITisServiceLifetimeManager)
{
FireOnLifetimeManagerDeactivate(
sAppName,
(ITisServiceLifetimeManager)oServiceProvider);
}
}
