private bool TryAllInstancesFromServiceLocators <T>(out ICollection <T> instance) where T : class
{
IEnumerable <T> result;
if (UserServiceLocator != null)
{
result = UserServiceLocator.GetAllInstances <T>();
if (result != null)
{
instance = result as IList <T>;
return(true);
}
}
if (ProviderServiceLocator != null)
{
result = ProviderServiceLocator.GetAllInstances <T>();
if (result != null)
{
instance = result as IList <T>;
return(true);
}
}
instance = null;
return(false);
}
private bool TrySingleInstanceFromServiceLocators <T>(out T instance) where T : class
{
if (UserServiceLocator != null)
{
instance = UserServiceLocator.GetInstance <T>();
if (instance != null)
{
return(true);
}
}
if (ProviderServiceLocator != null)
{
instance = ProviderServiceLocator.GetInstance <T>();
if (instance != null)
{
return(true);
}
}
instance = null;
return(false);
}
/// <summary>
/// Instantiates an instance of <see cref="ResourceEndpointConfiguration"/>.
/// </summary>
/// <returns>A <see cref="ResourceEndpointConfiguration"/> instance resolved by one of the <see cref="IServiceLocator"/>s.</returns>
/// <exception cref="GlimpseException">An exception is thrown is an instance of <see cref="ResourceEndpointConfiguration"/> is not provided by a <see cref="IServiceLocator"/>.</exception>
public ResourceEndpointConfiguration InstantiateResourceEndpointConfiguration()
{
ResourceEndpointConfiguration result;
if (TrySingleInstanceFromServiceLocators(out result))
{
return(result);
}
throw new GlimpseException(
string.Format(
Resources.InstantiateResourceEndpointConfigurationException,
UserServiceLocator == null ? "UserServiceLocator not configured" : UserServiceLocator.GetType().AssemblyQualifiedName,
ProviderServiceLocator == null ? "ProviderServiceLocator not configured" : ProviderServiceLocator.GetType().AssemblyQualifiedName));
}
/// <summary>
/// Instantiates an instance of <see cref="IFrameworkProvider"/>.
/// </summary>
/// <returns>A <see cref="IFrameworkProvider"/> instance resolved by one of the <see cref="IServiceLocator"/>s.</returns>
/// <exception cref="GlimpseException">An exception is thrown is an instance of <see cref="IFrameworkProvider"/> is not provided by a <see cref="IServiceLocator"/>.</exception>
public IFrameworkProvider InstantiateFrameworkProvider()
{
if (FrameworkProvider != null)
{
return(FrameworkProvider);
}
IFrameworkProvider result;
if (TrySingleInstanceFromServiceLocators(out result))
{
FrameworkProvider = result;
return(FrameworkProvider);
}
throw new GlimpseException(
string.Format(
Resources.InstantiateFrameworkProviderException,
UserServiceLocator == null ? "UserServiceLocator not configured" : UserServiceLocator.GetType().AssemblyQualifiedName,
ProviderServiceLocator == null ? "ProviderServiceLocator not configured" : ProviderServiceLocator.GetType().AssemblyQualifiedName));
}
