RealProxy Oluşturucular
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
RealProxy sınıfının yeni bir örneğini başlatır.
Aşırı Yüklemeler
RealProxy() |
RealProxy sınıfının yeni bir örneğini varsayılan değerlerle başlatır. |
RealProxy(Type) |
Belirtilen Typeöğesinin RealProxy uzak nesnesini temsil eden sınıfının yeni bir örneğini başlatır. |
RealProxy(Type, IntPtr, Object) |
RealProxy sınıfının yeni bir örneğini başlatır. |
RealProxy()
RealProxy sınıfının yeni bir örneğini varsayılan değerlerle başlatır.
protected:
RealProxy();
protected RealProxy ();
Protected Sub New ()
Örnekler
using namespace System;
using namespace System::Collections;
using namespace System::Runtime::Serialization;
using namespace System::Runtime::Remoting;
using namespace System::Runtime::Remoting::Activation;
using namespace System::Runtime::Remoting::Channels;
using namespace System::Runtime::Remoting::Proxies;
using namespace System::Runtime::Remoting::Messaging;
using namespace System::Runtime::Remoting::Contexts;
using namespace System::Security::Permissions;
ref class CustomServer;
[SecurityPermissionAttribute(SecurityAction::Demand, Flags=SecurityPermissionFlag::Infrastructure)]
public ref class MyProxy: public RealProxy
{
private:
String^ myUri;
MarshalByRefObject^ myMarshalByRefObject;
public:
MyProxy()
: RealProxy()
{
Console::WriteLine( "MyProxy Constructor Called..." );
myMarshalByRefObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance( CustomServer::typeid ));
ObjRef^ myObjRef = RemotingServices::Marshal( myMarshalByRefObject );
myUri = myObjRef->URI;
}
MyProxy( Type^ type1 )
: RealProxy( type1 )
{
Console::WriteLine( "MyProxy Constructor Called..." );
myMarshalByRefObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance( type1 ));
ObjRef^ myObjRef = RemotingServices::Marshal( myMarshalByRefObject );
myUri = myObjRef->URI;
}
MyProxy( Type^ type1, MarshalByRefObject^ targetObject )
: RealProxy( type1 )
{
Console::WriteLine( "MyProxy Constructor Called..." );
myMarshalByRefObject = targetObject;
ObjRef^ myObjRef = RemotingServices::Marshal( myMarshalByRefObject );
myUri = myObjRef->URI;
}
virtual IMessage^ Invoke( IMessage^ myMessage ) override
{
Console::WriteLine( "MyProxy 'Invoke method' Called..." );
if ( dynamic_cast<IMethodCallMessage^>(myMessage) )
{
Console::WriteLine( "IMethodCallMessage*" );
}
if ( dynamic_cast<IMethodReturnMessage^>(myMessage) )
{
Console::WriteLine( "IMethodReturnMessage*" );
}
if ( dynamic_cast<IConstructionCallMessage^>(myMessage) )
{
// Initialize a new instance of remote object
IConstructionReturnMessage^ myIConstructionReturnMessage = this->InitializeServerObject( static_cast<IConstructionCallMessage^>(myMessage) );
ConstructionResponse^ constructionResponse = gcnew ConstructionResponse( nullptr,static_cast<IMethodCallMessage^>(myMessage) );
return constructionResponse;
}
IDictionary^ myIDictionary = myMessage->Properties;
IMessage^ returnMessage;
myIDictionary[ "__Uri" ] = myUri;
// Synchronously dispatch messages to server.
returnMessage = ChannelServices::SyncDispatchMessage( myMessage );
// Pushing return value and OUT parameters back onto stack.
IMethodReturnMessage^ myMethodReturnMessage = dynamic_cast<IMethodReturnMessage^>(returnMessage);
return returnMessage;
}
virtual ObjRef^ CreateObjRef( Type^ ServerType ) override
{
Console::WriteLine( "CreateObjRef Method Called ..." );
CustomObjRef ^ myObjRef = gcnew CustomObjRef( myMarshalByRefObject,ServerType );
myObjRef->URI = myUri;
return myObjRef;
}
[System::Security::Permissions::SecurityPermissionAttribute(
System::Security::Permissions::SecurityAction::LinkDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
virtual void GetObjectData( SerializationInfo^ info, StreamingContext context ) override
{
// Add your custom data if any here.
RealProxy::GetObjectData( info, context );
}
[System::Security::Permissions::SecurityPermissionAttribute(
System::Security::Permissions::SecurityAction::Demand,
Flags=System::Security::Permissions::SecurityPermissionFlag::SerializationFormatter)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::InheritanceDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
ref class CustomObjRef: public ObjRef
{
public:
CustomObjRef( MarshalByRefObject^ myMarshalByRefObject, Type^ serverType )
: ObjRef( myMarshalByRefObject, serverType )
{
Console::WriteLine( "ObjRef 'Constructor' called" );
}
// Override this method to store custom data.
virtual void GetObjectData( SerializationInfo^ info, StreamingContext context ) override
{
ObjRef::GetObjectData( info, context );
}
};
};
[AttributeUsageAttribute(AttributeTargets::Class)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::InheritanceDemand,
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
public ref class MyProxyAttribute: public ProxyAttribute
{
public:
MyProxyAttribute(){}
// Create an instance of ServicedComponentProxy
virtual MarshalByRefObject^ CreateInstance( Type^ serverType ) override
{
return ProxyAttribute::CreateInstance( serverType );
}
virtual RealProxy^ CreateProxy( ObjRef^ objRef1, Type^ serverType, Object^ serverObject, Context^ serverContext ) override
{
MyProxy^ myCustomProxy = gcnew MyProxy( serverType );
if ( serverContext != nullptr )
{
RealProxy::SetStubData( myCustomProxy, serverContext );
}
if ( ( !serverType->IsMarshalByRef) && (serverContext == nullptr) )
{
throw gcnew RemotingException( "Bad Type for CreateProxy" );
}
return myCustomProxy;
}
};
[MyProxyAttribute]
ref class CustomServer: public ContextBoundObject
{
public:
CustomServer()
{
Console::WriteLine( "CustomServer Base Class constructor called" );
}
void HelloMethod( String^ str )
{
Console::WriteLine( "HelloMethod of Server is invoked with message : {0}", str );
}
};
// Acts as a custom proxy user.
int main()
{
Console::WriteLine( "" );
Console::WriteLine( "CustomProxy Sample" );
Console::WriteLine( "================" );
Console::WriteLine( "" );
// Create an instance of MyProxy.
MyProxy^ myProxyInstance = gcnew MyProxy( CustomServer::typeid );
// Get a CustomServer proxy.
CustomServer^ myHelloServer = static_cast<CustomServer^>(myProxyInstance->GetTransparentProxy());
// Get stubdata.
Console::WriteLine( "GetStubData = {0}", RealProxy::GetStubData( myProxyInstance ) );
// Get ProxyType.
Console::WriteLine( "Type of object represented by RealProxy is : {0}", myProxyInstance->GetProxiedType() );
myHelloServer->HelloMethod( "RealProxy Sample" );
Console::WriteLine( "" );
// Get a reference object from server.
Console::WriteLine( "Create an objRef object to be marshalled across Application Domains..." );
ObjRef^ CustomObjRef = myProxyInstance->CreateObjRef( CustomServer::typeid );
Console::WriteLine( "URI of 'ObjRef' object = {0}", CustomObjRef->URI );
return 0;
}
using System;
using System.Collections;
using System.Runtime.Serialization;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Activation;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Proxies;
using System.Runtime.Remoting.Messaging;
using System.Runtime.Remoting.Contexts;
namespace Samples
{
[AttributeUsage(AttributeTargets.Class)]
public class MyProxyAttribute : ProxyAttribute
{
public MyProxyAttribute()
{
}
// Create an instance of ServicedComponentProxy
public override MarshalByRefObject CreateInstance(Type serverType)
{
return base.CreateInstance(serverType);
}
public override RealProxy CreateProxy(ObjRef objRef1,
Type serverType,
object serverObject,
Context serverContext)
{
MyProxy myCustomProxy = new MyProxy(serverType);
if(serverContext != null)
{
RealProxy.SetStubData(myCustomProxy,serverContext);
}
if((!serverType.IsMarshalByRef)&&(serverContext == null))
{
throw new RemotingException("Bad Type for CreateProxy");
}
return myCustomProxy;
}
}
[MyProxyAttribute]
public class CustomServer :ContextBoundObject
{
public CustomServer()
{
Console.WriteLine("CustomServer Base Class constructor called");
}
public void HelloMethod(string str)
{
Console.WriteLine("HelloMethod of Server is invoked with message : " + str);
}
}
public class MyProxy : RealProxy
{
String myUri;
MarshalByRefObject myMarshalByRefObject;
public MyProxy(): base()
{
Console.WriteLine("MyProxy Constructor Called...");
myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(typeof(CustomServer));
ObjRef myObjRef = RemotingServices.Marshal(myMarshalByRefObject);
myUri = myObjRef.URI;
}
public MyProxy(Type type1): base(type1)
{
Console.WriteLine("MyProxy Constructor Called...");
myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(type1);
ObjRef myObjRef = RemotingServices.Marshal(myMarshalByRefObject);
myUri = myObjRef.URI;
}
public MyProxy(Type type1, MarshalByRefObject targetObject) : base(type1)
{
Console.WriteLine("MyProxy Constructor Called...");
myMarshalByRefObject = targetObject;
ObjRef myObjRef = RemotingServices.Marshal(myMarshalByRefObject);
myUri = myObjRef.URI;
}
public override IMessage Invoke(IMessage myMessage)
{
Console.WriteLine("MyProxy 'Invoke method' Called...");
if (myMessage is IMethodCallMessage)
{
Console.WriteLine("IMethodCallMessage");
}
if (myMessage is IMethodReturnMessage)
{
Console.WriteLine("IMethodReturnMessage");
}
if (myMessage is IConstructionCallMessage)
{
// Initialize a new instance of remote object
IConstructionReturnMessage myIConstructionReturnMessage =
this.InitializeServerObject((IConstructionCallMessage)myMessage);
ConstructionResponse constructionResponse = new
ConstructionResponse(null,(IMethodCallMessage) myMessage);
return constructionResponse;
}
IDictionary myIDictionary = myMessage.Properties;
IMessage returnMessage;
myIDictionary["__Uri"] = myUri;
// Synchronously dispatch messages to server.
returnMessage = ChannelServices.SyncDispatchMessage(myMessage);
// Pushing return value and OUT parameters back onto stack.
IMethodReturnMessage myMethodReturnMessage = (IMethodReturnMessage)returnMessage;
return returnMessage;
}
public override ObjRef CreateObjRef(Type ServerType)
{
Console.WriteLine ("CreateObjRef Method Called ...");
CustomObjRef myObjRef = new CustomObjRef(myMarshalByRefObject,ServerType);
myObjRef.URI = myUri ;
return myObjRef;
}
public override void GetObjectData( SerializationInfo info,
StreamingContext context)
{
// Add your custom data if any here.
base.GetObjectData(info, context);
}
public class CustomObjRef :ObjRef
{
public CustomObjRef(MarshalByRefObject myMarshalByRefObject,Type serverType):
base(myMarshalByRefObject,serverType)
{
Console.WriteLine("ObjRef 'Constructor' called");
}
// Override this method to store custom data.
public override void GetObjectData(SerializationInfo info,
StreamingContext context)
{
base.GetObjectData(info,context);
}
}
}
public class ProxySample
{
// Acts as a custom proxy user.
public static void Main()
{
Console.WriteLine("");
Console.WriteLine("CustomProxy Sample");
Console.WriteLine("================");
Console.WriteLine("");
// Create an instance of MyProxy.
MyProxy myProxyInstance = new MyProxy(typeof(CustomServer));
// Get a CustomServer proxy.
CustomServer myHelloServer = (CustomServer)myProxyInstance.GetTransparentProxy();
// Get stubdata.
Console.WriteLine("GetStubData = " + RealProxy.GetStubData(myProxyInstance).ToString());
// Get ProxyType.
Console.WriteLine("Type of object represented by RealProxy is :"
+ myProxyInstance.GetProxiedType());
myHelloServer.HelloMethod("RealProxy Sample");
Console.WriteLine("");
// Get a reference object from server.
Console.WriteLine("Create an objRef object to be marshalled across Application Domains...");
ObjRef CustomObjRef = myProxyInstance.CreateObjRef(typeof(CustomServer));
Console.WriteLine("URI of 'ObjRef' object = " + CustomObjRef.URI);
}
}
}
Imports System.Collections
Imports System.Runtime.Serialization
Imports System.Runtime.Remoting
Imports System.Runtime.Remoting.Activation
Imports System.Runtime.Remoting.Channels
Imports System.Runtime.Remoting.Proxies
Imports System.Runtime.Remoting.Messaging
Imports System.Runtime.Remoting.Contexts
Imports System.Security.Permissions
Namespace Samples
<SecurityPermissionAttribute(SecurityAction.Demand, Flags := SecurityPermissionFlag.Infrastructure), _
AttributeUsage(AttributeTargets.Class)> _
Public Class MyProxyAttribute
Inherits ProxyAttribute
Public Sub New()
End Sub
' Create an instance of ServicedComponentProxy
Public Overrides Function CreateInstance(serverType As Type) As MarshalByRefObject
Return MyBase.CreateInstance(serverType)
End Function 'CreateInstance
Public Overrides Function CreateProxy(objRef1 As ObjRef, serverType As Type, _
serverObject As Object, serverContext As Context) As RealProxy
Dim myCustomProxy As New MyProxy(serverType)
If Not (serverContext Is Nothing) Then
RealProxy.SetStubData(myCustomProxy, serverContext)
End If
If Not serverType.IsMarshalByRef And serverContext Is Nothing Then
Throw New RemotingException("Bad Type for CreateProxy")
End If
Return myCustomProxy
End Function 'CreateProxy
End Class
<MyProxyAttribute()> _
Public Class CustomServer
Inherits ContextBoundObject
Public Sub New()
Console.WriteLine("CustomServer Base Class constructor called")
End Sub
Public Sub HelloMethod(str As String)
Console.WriteLine("HelloMethod of Server is invoked with message : " + str)
End Sub
End Class
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class MyProxy
Inherits RealProxy
Private myUri As String
Private myMarshalByRefObject As MarshalByRefObject
Public Sub New()
MyBase.New()
Console.WriteLine("MyProxy Constructor Called...")
myMarshalByRefObject = _
CType(Activator.CreateInstance(GetType(CustomServer)), MarshalByRefObject)
Dim myObjRef As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
myUri = myObjRef.URI
End Sub
Public Sub New(type1 As Type)
MyBase.New(type1)
Console.WriteLine("MyProxy Constructor Called...")
myMarshalByRefObject = CType(Activator.CreateInstance(type1), MarshalByRefObject)
Dim myObjRef As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
myUri = myObjRef.URI
End Sub
Public Sub New(type1 As Type, targetObject As MarshalByRefObject)
MyBase.New(type1)
Console.WriteLine("MyProxy Constructor Called...")
myMarshalByRefObject = targetObject
Dim myObjRef As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
myUri = myObjRef.URI
End Sub
Public Overrides Function Invoke(myMessage As IMessage) As IMessage
Console.WriteLine("MyProxy 'Invoke method' Called...")
If TypeOf myMessage Is IMethodCallMessage Then
Console.WriteLine("IMethodCallMessage")
End If
If TypeOf myMessage Is IMethodReturnMessage Then
Console.WriteLine("IMethodReturnMessage")
End If
If TypeOf myMessage Is IConstructionCallMessage Then
' Initialize a new instance of remote object
Dim myIConstructionReturnMessage As IConstructionReturnMessage = _
Me.InitializeServerObject(CType(myMessage, IConstructionCallMessage))
Dim constructionResponse As _
New ConstructionResponse(Nothing, CType(myMessage, IMethodCallMessage))
Return constructionResponse
End If
Dim myIDictionary As IDictionary = myMessage.Properties
Dim returnMessage As IMessage
myIDictionary("__Uri") = myUri
' Synchronously dispatch messages to server.
returnMessage = ChannelServices.SyncDispatchMessage(myMessage)
' Pushing return value and OUT parameters back onto stack.
Dim myMethodReturnMessage As IMethodReturnMessage = _
CType(returnMessage, IMethodReturnMessage)
Return returnMessage
End Function 'Invoke
Public Overrides Function CreateObjRef(ServerType As Type) As ObjRef
Console.WriteLine("CreateObjRef Method Called ...")
Dim myObjRef As New CustomObjRef(myMarshalByRefObject, ServerType)
myObjRef.URI = myUri
Return myObjRef
End Function 'CreateObjRef
Public Overrides Sub GetObjectData(info As SerializationInfo, context As StreamingContext)
' Add your custom data if any here.
MyBase.GetObjectData(info, context)
End Sub
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class CustomObjRef
Inherits ObjRef
Public Sub New(myMarshalByRefObject As MarshalByRefObject, serverType As Type)
MyBase.New(myMarshalByRefObject, serverType)
Console.WriteLine("ObjRef 'Constructor' called")
End Sub
' Override this method to store custom data.
<SecurityPermissionAttribute(SecurityAction.Demand, SerializationFormatter:=true)> _
Public Overrides Sub GetObjectData(info As SerializationInfo, context As StreamingContext)
MyBase.GetObjectData(info, context)
End Sub
End Class
End Class
<PermissionSet(SecurityAction.Demand, Name:="FullTrust")> _
Public Class ProxySample
' Acts as a custom proxy user.
Public Shared Sub Main()
Console.WriteLine("")
Console.WriteLine("CustomProxy Sample")
Console.WriteLine("================")
Console.WriteLine("")
' Create an instance of MyProxy.
Dim myProxyInstance As New MyProxy(GetType(CustomServer))
' Get a CustomServer proxy.
Dim myHelloServer As CustomServer = _
CType(myProxyInstance.GetTransparentProxy(), CustomServer)
' Get stubdata.
Console.WriteLine("GetStubData = " + RealProxy.GetStubData(myProxyInstance).ToString())
' Get ProxyType.
Console.WriteLine("Type of object represented by RealProxy is :" + _
myProxyInstance.GetProxiedType().ToString())
myHelloServer.HelloMethod("RealProxy Sample")
Console.WriteLine("")
' Get a reference object from server.
Console.WriteLine("Create an objRef object to be marshalled across Application Domains...")
Dim CustomObjRef As ObjRef = myProxyInstance.CreateObjRef(GetType(CustomServer))
Console.WriteLine("URI of 'ObjRef' object = " + CustomObjRef.URI)
End Sub
End Class
End Namespace 'Samples.AspNet.VB
Şunlara uygulanır
RealProxy(Type)
protected:
RealProxy(Type ^ classToProxy);
protected RealProxy (Type classToProxy);
[System.Security.SecurityCritical]
protected RealProxy (Type classToProxy);
new System.Runtime.Remoting.Proxies.RealProxy : Type -> System.Runtime.Remoting.Proxies.RealProxy
[<System.Security.SecurityCritical>]
new System.Runtime.Remoting.Proxies.RealProxy : Type -> System.Runtime.Remoting.Proxies.RealProxy
Protected Sub New (classToProxy As Type)
Parametreler
- Öznitelikler
Özel durumlar
classToProxy
bir arabirim değildir ve 'den MarshalByRefObjecttüretilmemiştir.
Örnekler
// Create an instance of MyProxy.
MyProxy^ myProxyInstance = gcnew MyProxy( CustomServer::typeid );
// Get a CustomServer proxy.
CustomServer^ myHelloServer = static_cast<CustomServer^>(myProxyInstance->GetTransparentProxy());
// Create an instance of MyProxy.
MyProxy myProxyInstance = new MyProxy(typeof(CustomServer));
// Get a CustomServer proxy.
CustomServer myHelloServer = (CustomServer)myProxyInstance.GetTransparentProxy();
' Create an instance of MyProxy.
Dim myProxyInstance As New MyProxy(GetType(CustomServer))
' Get a CustomServer proxy.
Dim myHelloServer As CustomServer = _
CType(myProxyInstance.GetTransparentProxy(), CustomServer)
Açıklamalar
Geçerli yöntem, yöntemi aracılığıyla GetTransparentProxy erişilebilen saydam bir proxy oluşturur.
Herhangi bir uzaktan iletişim sınırında nesne kullanan bir istemci aslında nesne için saydam bir ara sunucu kullanır. Saydam proxy, gerçek nesnenin istemcinin alanında yer aldığını gösterir. Uzaktan iletişim altyapısını kullanarak üzerinde yapılan çağrıları gerçek nesneye ileterek bunu elde eder.
Saydam proxy, yönetilen çalışma zamanı sınıfının RealProxybir örneği tarafından barındırılır. , RealProxy saydam proxy'den işlemleri iletmek için gereken işlevselliğin bir bölümünü uygular. Bir proxy nesnesinin, atık toplama ve alanlar ve yöntemler için destek gibi yönetilen nesnelerin ilişkili semantiğini devraldığını ve yeni sınıflar oluşturacak şekilde genişletilebileceğini unutmayın. Ara sunucu çift yapıya sahiptir: uzak nesne (saydam ara sunucu) ile aynı sınıfın nesnesi olarak görev yapar ve yönetilen nesnenin kendisidir.
Şunlara uygulanır
RealProxy(Type, IntPtr, Object)
RealProxy sınıfının yeni bir örneğini başlatır.
protected:
RealProxy(Type ^ classToProxy, IntPtr stub, System::Object ^ stubData);
protected RealProxy (Type classToProxy, IntPtr stub, object stubData);
[System.Security.SecurityCritical]
protected RealProxy (Type classToProxy, IntPtr stub, object stubData);
new System.Runtime.Remoting.Proxies.RealProxy : Type * nativeint * obj -> System.Runtime.Remoting.Proxies.RealProxy
[<System.Security.SecurityCritical>]
new System.Runtime.Remoting.Proxies.RealProxy : Type * nativeint * obj -> System.Runtime.Remoting.Proxies.RealProxy
Protected Sub New (classToProxy As Type, stub As IntPtr, stubData As Object)
Parametreler
- stub
-
IntPtr
nativeint
Yeni proxy örneğiyle ilişkilendirilecek saplama.
- stubData
- Object
Belirtilen saplama ve yeni proxy örneği için ayarlanacağı saplama verileri.
- Öznitelikler
Özel durumlar
classToProxy
bir arabirim değildir ve 'den MarshalByRefObjecttüretilmemiştir.
Açıklamalar
Saptama verileri, özel ara sunucu kullanıcıları tarafından gelen yöntem çağrısıyla ne yapacağına karar vermek için kullanılır. Örneğin, saplama verileri, çağrının yerel olarak yürütüleceğini veya uzaktan iletişim altyapısı üzerinden gönderilip gönderilmeyeceğini belirlemek için kullanabileceğiniz sunucunun bağlamı hakkında bilgiler olabilir.