/// <summary>
///
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="parameters"></param>
/// <returns></returns>
public static IDynamicConstructor GetDynamicConstructor(Type objectType, params Type[] parameterTypes)
{
if (parameterTypes == null)
{
parameterTypes = Type.EmptyTypes;
}
MethodCacheKey key = MethodCacheKey.Create(objectType.FullName, objectType.Name, parameterTypes);
IDynamicConstructor dynamicConstructor = null;
if (!_dynamicConstructors.TryGetValue(key, out dynamicConstructor))
{
lock (_syncObj)
{
if (!_dynamicConstructors.TryGetValue(key, out dynamicConstructor))
{
ConstructorInfo ctor = objectType.GetConstructor(parameterTypes);
if (ctor != null)
{
dynamicConstructor = DynamicConstructor.Create(ctor);
if (dynamicConstructor != null)
{
_dynamicConstructors.Add(key, dynamicConstructor);
}
}
}
}
}
return(dynamicConstructor);
}
public static IDynamicConstructor GetDynamicConstructor(Type objectType, IDictionary <string, object> namedArgValues)
{
IDictionary <string, object> namedParamValues = namedArgValues == null ? new Dictionary <string, object>() : namedArgValues;
DynamicConstructorCacheKey key = new DynamicConstructorCacheKey(objectType, namedParamValues);
IDynamicConstructor dynamicConstructor = null;
if (!_namedArgumentDynamicConstructors.TryGetValue(key, out dynamicConstructor))
{
lock (_syncObj)
{
if (!_namedArgumentDynamicConstructors.TryGetValue(key, out dynamicConstructor))
{
ConstructorInfo constructorInfo = ReflectionHelper.GetConstructorByNamedArgumentValues(objectType, namedArgValues);
dynamicConstructor = DynamicConstructor.Create(constructorInfo);
if (dynamicConstructor != null)
{
_namedArgumentDynamicConstructors.Add(key, dynamicConstructor);
}
}
}
}
return(dynamicConstructor);
}
/// <summary>
/// Registers resource handler and maps it to the specified protocol name.
/// </summary>
/// <remarks>
/// <p>
/// If the mapping already exists, the existing mapping will be
/// silently overwritten with the new mapping.
/// </p>
/// </remarks>
/// <param name="protocolName">
/// The protocol to add (or override).
/// </param>
/// <param name="handlerType">
/// The concrete implementation of the
/// <see cref="Oragon.Spring.Core.IO.IResource"/> interface that will handle
/// the specified protocol.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// If the supplied <paramref name="protocolName"/> is
/// <see langword="null"/> or contains only whitespace character(s); or
/// if the supplied <paramref name="handlerType"/> is
/// <see langword="null"/>.
/// </exception>
/// <exception cref="System.ArgumentException">
/// If the supplied <paramref name="handlerType"/> is not a
/// <see cref="Type"/> that derives from the
/// <see cref="Oragon.Spring.Core.IO.IResource"/> interface; or (having passed
/// this first check), the supplied <paramref name="handlerType"/>
/// does not expose a constructor that takes a single
/// <see cref="System.String"/> parameter.
/// </exception>
public static void RegisterResourceHandler(string protocolName, Type handlerType)
{
#region Sanity Checks
AssertUtils.ArgumentHasText(protocolName, "protocolName");
AssertUtils.ArgumentNotNull(handlerType, "handlerType");
if (!typeof(IResource).IsAssignableFrom(handlerType))
{
throw new ArgumentException(
string.Format("[{0}] does not implement [{1}] interface (it must).", handlerType.FullName, typeof(IResource).FullName));
}
#endregion
lock (syncRoot)
{
//SecurityCritical.ExecutePrivileged( new SecurityPermission(SecurityPermissionFlag.Infrastructure), delegate
//{
// register generic uri parser for this scheme
if (!UriParser.IsKnownScheme(protocolName))
{
UriParser.Register(new TolerantUriParser(), protocolName, 0);
}
//});
IDynamicConstructor ctor = GetResourceConstructor(handlerType);
resourceHandlers[protocolName] = ctor;
}
}
public void ObjectInstantiatonTests()
{
int numIterations = 1000000;
start = DateTime.Now;
Type t = typeof(AccountCreditDao);
for (int i = 0; i < numIterations; i++)
{
//ObjectUtils.IsInstantiable(t);
IDynamicConstructor dc = DynamicConstructor.Create(t.GetConstructor(Type.EmptyTypes));
dc.Invoke(ObjectUtils.EmptyObjects);
}
stop = DateTime.Now;
double timeElapsed = Elapsed;
PrintTest("SafeConstructor", numIterations, timeElapsed);
start = DateTime.Now;
for (int i = 0; i < numIterations; i++)
{
ObjectUtils.InstantiateType(typeof(AccountCreditDao));
}
stop = DateTime.Now;
timeElapsed = Elapsed;
PrintTest("InstantiateType", numIterations, timeElapsed);
}
/// <summary>
/// Initializes a new instance of the <see cref="DbProvider"/> class.
/// </summary>
/// <param name="dbMetadata">The db metadata.</param>
public DbProvider(IDbMetadata dbMetadata)
{
this.dbMetadata = dbMetadata;
newCommand = DynamicConstructor.Create(dbMetadata.CommandType.GetConstructor(Type.EmptyTypes));
newConnection = DynamicConstructor.Create(dbMetadata.ConnectionType.GetConstructor(Type.EmptyTypes));
newCommandBuilder = DynamicConstructor.Create(dbMetadata.CommandBuilderType.GetConstructor(Type.EmptyTypes));
newDataAdapter = DynamicConstructor.Create(dbMetadata.DataAdapterType.GetConstructor(Type.EmptyTypes));
newParameter = DynamicConstructor.Create(dbMetadata.ParameterType.GetConstructor(Type.EmptyTypes));
}
/// <summary>
/// Initializes a new instance of the <see cref="DbProvider"/> class.
/// </summary>
/// <param name="dbMetadata">The db metadata.</param>
public DbProvider(IDbMetadata dbMetadata)
{
this.dbMetadata = dbMetadata;
newCommand = DynamicConstructor.Create(dbMetadata.CommandType.GetConstructor(Type.EmptyTypes));
newConnection = DynamicConstructor.Create(dbMetadata.ConnectionType.GetConstructor(Type.EmptyTypes));
newCommandBuilder = DynamicConstructor.Create(dbMetadata.CommandBuilderType.GetConstructor(Type.EmptyTypes));
newDataAdapter = DynamicConstructor.Create(dbMetadata.DataAdapterType.GetConstructor(Type.EmptyTypes));
newParameter = DynamicConstructor.Create(dbMetadata.ParameterType.GetConstructor(Type.EmptyTypes));
}
/// <summary>
/// Creates a new instance of the safe constructor wrapper.
/// </summary>
/// <param name="constructor">Constructor to wrap.</param>
public SafeConstructor(ConstructorInfo constructor)
{
this.constructorInfo = constructor;
if (constructor.IsPublic &&
ReflectionUtils.IsTypeVisible(constructor.DeclaringType, DynamicReflectionManager.ASSEMBLY_NAME))
{
this.dynamicConstructor = DynamicConstructor.Create(constructor);
this.isOptimized = true;
}
}
/// <summary>
/// Uses reflection to create an object using its
/// default constructor.
/// </summary>
/// <param name="objectType">Type of object to create.</param>
public static object CreateInstance(Type objectType)
{
IDynamicConstructor ctor = DynamicConstructorCache.GetDynamicConstructor(objectType, Type.EmptyTypes);
if (ctor == null)
{
ThrowHelper.ThrowNotImplementedException(ReflectionSR.DefaultConstructorMethodNotImplemented, objectType.FullName);
}
return(ctor.Invoke(null));
}
/// <summary>
///
/// </summary>
/// <param name="objectType"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public static object CreateInstance(Type objectType, params object[] parameters)
{
IDynamicConstructor ctor = DynamicConstructorCache.GetDynamicConstructor(objectType, parameters);
if (ctor == null)
{
ThrowHelper.ThrowNotImplementedException(ReflectionSR.ConstructorNotImplemented, objectType.FullName, TypeHelper.GetTypesString(parameters));
}
return(ctor.Invoke(parameters));
}
public static object CreateInstance(Type objectType, IDictionary <string, object> namedArgValues)
{
object target = null;
IDynamicConstructor ctor = DynamicConstructorCache.GetDynamicConstructor(objectType, namedArgValues);
if (ctor != null)
{
target = ctor.Invoke(namedArgValues.Values.ToArray());
}
return(target);
}
public void TestConstructors()
{
IDynamicConstructor newInventor = DynamicConstructor.Create(
typeof(Inventor).GetConstructor(new Type[] { typeof(string), typeof(DateTime), typeof(string) }));
Inventor ana = (Inventor)newInventor.Invoke(new object[] { "Ana Maria Seovic", new DateTime(2004, 8, 14), "Serbian" });
Assert.AreEqual("Ana Maria Seovic", ana.Name);
IDynamicConstructor newDate = DynamicConstructor.Create(
typeof(DateTime).GetConstructor(new Type[] { typeof(int), typeof(int), typeof(int) }));
Assert.AreEqual(DateTime.Today, newDate.Invoke(new object[] { DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day }));
}
/// <summary>
/// Returns dynamic constructor if one exists.
/// </summary>
/// <param name="constructor">Constructor to look up.</param>
/// <param name="createCallback">callback function that will be called to create the dynamic constructor</param>
/// <returns>An <see cref="IDynamicConstructor"/> for the given constructor.</returns>
internal static IDynamicConstructor GetDynamicConstructor(ConstructorInfo constructor, CreateConstructorCallback createCallback)
{
lock (constructorCache.SyncRoot)
{
IDynamicConstructor dynamicConstructor = (IDynamicConstructor)constructorCache[constructor];
if (dynamicConstructor == null)
{
dynamicConstructor = createCallback(constructor);
constructorCache[constructor] = dynamicConstructor;
}
return(dynamicConstructor);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="DbProvider"/> class.
/// </summary>
/// <param name="dbMetadata">The db metadata.</param>
public DbProvider(IDbMetadata dbMetadata)
{
this.dbMetadata = dbMetadata;
newCommand = DynamicConstructor.Create(dbMetadata.CommandType.GetConstructor(Type.EmptyTypes));
// Oracle needs custom bind by name property set to true as it's false by default
var bindByNameProperty = dbMetadata.CommandType.GetProperty("BindByName");
if (bindByNameProperty != null && bindByNameProperty.CanWrite)
{
commandBindByName = DynamicProperty.Create(bindByNameProperty);
}
newConnection = DynamicConstructor.Create(dbMetadata.ConnectionType.GetConstructor(Type.EmptyTypes));
newCommandBuilder = DynamicConstructor.Create(dbMetadata.CommandBuilderType.GetConstructor(Type.EmptyTypes));
newDataAdapter = DynamicConstructor.Create(dbMetadata.DataAdapterType.GetConstructor(Type.EmptyTypes));
newParameter = DynamicConstructor.Create(dbMetadata.ParameterType.GetConstructor(Type.EmptyTypes));
}
/// <summary>
/// Initializes a new instance of the <see cref="DbProvider"/> class.
/// </summary>
/// <param name="dbMetadata">The db metadata.</param>
public DbProvider(IDbMetadata dbMetadata)
{
this.dbMetadata = dbMetadata;
newCommand = DynamicConstructor.Create(dbMetadata.CommandType.GetConstructor(Type.EmptyTypes));
// Oracle needs custom bind by name property set to true as it's false by default
var bindByNameProperty = dbMetadata.CommandType.GetProperty("BindByName");
if (bindByNameProperty != null && bindByNameProperty.CanWrite)
{
commandBindByName = DynamicProperty.Create(bindByNameProperty);
}
newConnection = DynamicConstructor.Create(dbMetadata.ConnectionType.GetConstructor(Type.EmptyTypes));
newCommandBuilder = DynamicConstructor.Create(dbMetadata.CommandBuilderType.GetConstructor(Type.EmptyTypes));
newDataAdapter = DynamicConstructor.Create(dbMetadata.DataAdapterType.GetConstructor(Type.EmptyTypes));
newParameter = DynamicConstructor.Create(dbMetadata.ParameterType.GetConstructor(Type.EmptyTypes));
}
/// <summary>
/// Returns a <see cref="Spring.Core.IO.IResource"/> that has been
/// mapped to the protocol of the supplied <paramref name="resourceName"/>.
/// </summary>
/// <param name="resourceName">The name of the resource.</param>
/// <returns>
/// A new <see cref="Spring.Core.IO.IResource"/> instance for the
/// supplied <paramref name="resourceName"/>.
/// </returns>
/// <exception cref="System.UriFormatException">
/// If a <see cref="Spring.Core.IO.IResource"/> <see cref="System.Type"/>
/// mapping does not exist for the supplied <paramref name="resourceName"/>.
/// </exception>
/// <exception cref="System.Exception">
/// In the case of any errors arising from the instantiation of the
/// returned <see cref="Spring.Core.IO.IResource"/> instance.
/// </exception>
/// <seealso cref="ResourceHandlerRegistry.RegisterResourceHandler(string, Type)"/>
public IResource GetResource(string resourceName)
{
string protocol = GetProtocol(resourceName);
if (protocol == null)
{
protocol = DefaultResourceProtocol;
resourceName = protocol + ProtocolSeparator + resourceName;
}
IDynamicConstructor handler = ResourceHandlerRegistry.GetResourceHandler(protocol);
if (handler == null)
{
throw new UriFormatException("Resource handler for the '" + protocol + "' protocol is not defined.");
}
return((IResource)handler.Invoke(new object[] { resourceName }));
}
//[Test]
public void PerformanceTests()
{
int n = 10000000;
object x = null;
// new Inventor()
start = DateTime.Now;
for (int i = 0; i < n; i++)
{
x = new Inventor("Nikola Tesla", new DateTime(1856, 7, 9), "Serbian");
}
stop = DateTime.Now;
PrintTest("new Inventor() (direct)", n, Elapsed);
start = DateTime.Now;
IDynamicConstructor newInventor = DynamicConstructor.Create(
typeof(Inventor).GetConstructor(new Type[] { typeof(string), typeof(DateTime), typeof(string) }));
for (int i = 0; i < n; i++)
{
object[] args = new object[] { "Nikola Tesla", new DateTime(1856, 7, 9), "Serbian" };
x = newInventor.Invoke(args);
}
stop = DateTime.Now;
PrintTest("new Inventor() (dynamic reflection)", n, Elapsed);
start = DateTime.Now;
ConstructorInfo newInventorCi =
typeof(Inventor).GetConstructor(new Type[] { typeof(string), typeof(DateTime), typeof(string) });
for (int i = 0; i < n; i++)
{
object[] args = new object[] { "Nikola Tesla", new DateTime(1856, 7, 9), "Serbian" };
x = newInventorCi.Invoke(args);
}
stop = DateTime.Now;
PrintTest("new Inventor() (standard reflection)", n, Elapsed);
}
public CreateControlCollectionWrapper(IDynamicConstructor ctor)
{
_ctor = ctor;
}
/// <summary>
/// Creates a new instance of the safe constructor wrapper.
/// </summary>
/// <param name="constructor">Constructor to wrap.</param>
public SafeConstructor(ConstructorInfo constructor)
{
this.constructorInfo = constructor;
if (constructor.IsPublic &&
ReflectionUtils.IsTypeVisible(constructor.DeclaringType, DynamicReflectionManager.ASSEMBLY_NAME))
{
this.dynamicConstructor = DynamicConstructor.Create(constructor);
this.isOptimized = true;
}
}
public CreateControlCollectionWrapper(IDynamicConstructor ctor)
{
_ctor = ctor;
}
