public static T GetInstance <T>(Func <Assembly, bool> predicate)
{
IEnumerable <T> instances = ExtensionManager.GetInstances <T>(predicate);
if (instances.Count() == 0)
{
throw new ArgumentException("Instance of " + typeof(T) + " can't be created");
}
return(instances.FirstOrDefault());
}
/// <summary>
/// Gets the new instances of the implementations of the type specified by the type parameter
/// and located in the assemblies filtered by the predicate or empty enumeration
/// if no implementations found.
/// </summary>
/// <typeparam name="T">The type parameter to find implementations of.</typeparam>
/// <param name="predicate">The predicate to filter the assemblies.</param>
/// <param name="useCaching">
/// Determines whether the type cache should be used to avoid assemblies scanning next time,
/// when the instance(s) of the same type(s) is requested.
/// </param>
/// <returns>The instances of the found implementations of the given type.</returns>
public static IEnumerable <T> GetInstances <T>(Func <Assembly, bool> predicate, bool useCaching = false)
{
return(ExtensionManager.GetInstances <T>(predicate, useCaching, new object[] { }));
}
/// <summary>
/// Gets the new instances (using constructor that matches the arguments) of the implementations
/// of the type specified by the type parameter or empty enumeration if no implementations found.
/// </summary>
/// <typeparam name="T">The type parameter to find implementations of.</typeparam>
/// <param name="useCaching">
/// Determines whether the type cache should be used to avoid assemblies scanning next time,
/// when the instance(s) of the same type(s) is requested.
/// </param>
/// <param name="args">The arguments to be passed to the constructors.</param>
/// <returns>The instances of the found implementations of the given type.</returns>
public static IEnumerable <T> GetInstances <T>(bool useCaching = false, params object[] args)
{
return(ExtensionManager.GetInstances <T>(null, useCaching, args));
}
/// <summary>
/// Gets the new instances of the implementations of the type specified by the type parameter
/// or empty enumeration if no implementations found.
/// </summary>
/// <typeparam name="T">The type parameter to find implementations of.</typeparam>
/// <param name="useCaching">
/// Determines whether the type cache should be used to avoid assemblies scanning next time,
/// when the instance(s) of the same type(s) is requested.
/// </param>
/// <returns>The instances of the found implementations of the given type.</returns>
public static IEnumerable <T> GetInstances <T>(bool useCaching = false)
{
return(ExtensionManager.GetInstances <T>(null, useCaching, new object[] { }));
}
/// <summary>
/// Gets the new instance (using constructor that matches the arguments) of the first implementation
/// of the type specified by the type parameter and located in the assemblies filtered by the predicate
/// or null if no implementations found.
/// </summary>
/// <typeparam name="T">The type parameter to find implementation of.</typeparam>
/// <param name="predicate">The predicate to filter the assemblies.</param>
/// <param name="useCaching">
/// Determines whether the type cache should be used to avoid assemblies scanning next time,
/// when the instance(s) of the same type(s) is requested.
/// </param>
/// <param name="args">The arguments to be passed to the constructor.</param>
/// <returns>The instance of the first found implementation of the given type.</returns>
public static T GetInstance <T>(Func <Assembly, bool> predicate, bool useCaching = false, params object[] args)
{
return(ExtensionManager.GetInstances <T>(predicate, useCaching, args).FirstOrDefault());
}
public static IEnumerable <T> GetInstances <T>()
{
return(ExtensionManager.GetInstances <T>(null));
}
public static T GetInstance <T>(Func <Assembly, bool> predicate)
{
return(ExtensionManager.GetInstances <T>(predicate).FirstOrDefault());
}
/// <summary>
/// Gets the new instances (using constructor that matches the arguments) of the implementations
/// of the type specified by the type parameter or empty enumeration if no implementations found.
/// </summary>
/// <typeparam name="T">The type parameter to find implementations of.</typeparam>
/// <param name="args">The arguments to be passed to the constructors.</param>
/// <returns></returns>
public static IEnumerable <T> GetInstances <T>(params object[] args)
{
return(ExtensionManager.GetInstances <T>(null, args));
}
