DiscoveryReference.ReadDocument メソッドとは何？わかりやすく解説 Weblio辞書

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.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

DiscoveryReference.ReadDocument メソッド

渡された Stream を読み取り、参照されるドキュメントの型を表すクラスのインスタンスを返します。

名前空間: System.Web.Services.Discovery
アセンブリ: System.Web.Services (system.web.services.dll 内)
構文

Visual Basic (宣言)

Public MustOverride Function
 ReadDocument ( _
    stream As Stream _
) As Object

Visual Basic (使用法)

Dim instance As DiscoveryReference
Dim stream As Stream
Dim returnValue As Object

returnValue = instance.ReadDocument(stream)

public abstract Object ReadDocument (
    Stream stream
)

C++

public:
virtual Object^ ReadDocument (
    Stream^ stream
) abstract

public abstract Object ReadDocument (
    Stream stream
)

JScript

public abstract function ReadDocument (
    stream : Stream
) : Object

パラメータ

stream: 参照されるドキュメントを格納している Stream。

戻り値
基になる型が参照されるドキュメントの型に一致する Object。

解説

戻り値は、常に Object です。ただし、基になる型は参照されるドキュメントの型によって異なります。たとえば、Stream を SchemaReference.ReadDocument に渡すと、XmlSchema のインスタンスを返します。

使用例

Visual Basic

Imports System
Imports System.IO
Imports System.Web.Services.Discovery
Imports System.Net

Class MyDiscoveryDocumentClass
  Public Shared Sub Main()

      Dim myDiscoveryDocument As DiscoveryDocument
      Dim myStreamReader As _
         New StreamReader("c:\Inetpub\wwwroot\dataservice.disco")
      Dim myStream As _
         New FileStream("C:\MyDiscovery.disco",
 FileMode.OpenOrCreate)
      Console.WriteLine("Demonstrating Discovery Reference class.")

      ' Read discovery file.
      myDiscoveryDocument = DiscoveryDocument.Read(myStreamReader)

      ' Variable of type DiscoveryReference class defined.
      Dim myDiscoveryReference As MyDiscoveryReferenceClass
      myDiscoveryReference = New MyDiscoveryReferenceClass()

      Dim myDiscoveryClientProtocol As New
 DiscoveryClientProtocol()
      myDiscoveryClientProtocol.Credentials = _
         CredentialCache.DefaultCredentials

      ' Set the client protocol.
      myDiscoveryReference.ClientProtocol = myDiscoveryClientProtocol

      ' Read the default file name.
      Console.WriteLine("Default file name is : "
 & _
         myDiscoveryReference.DefaultFilename)

      ' Write the document.
      myDiscoveryReference.WriteDocument(myDiscoveryDocument, myStream)

      ' Read the document.
      myDiscoveryReference.ReadDocument(myStream)

      ' Set the URL.
      myDiscoveryReference.Url = "http://localhost/dataservice.disco"
      Console.WriteLine("Url is : " & myDiscoveryReference.Url)

      ' Resolve the URL
      myDiscoveryReference.Resolve()

      myStreamReader.Close()
      myStream.Close()
   End Sub

End Class


' Class derived from DiscoveryReference class and overriding its members.
Class MyDiscoveryReferenceClass
   Inherits DiscoveryReference
   Private myDocumentUrl As String

   Public Overrides ReadOnly
 Property DefaultFilename() As String
      Get
         Return "dataservice.disco"
      End Get
   End Property

   Public Overrides Function
 _
      ReadDocument(ByVal stream As System.IO.Stream)
 As Object
      Return stream
   End Function

   Public Overloads Sub
 Resolve()
      Try
         Dim myDiscoveryRefDocument As DiscoveryDocument
         myDiscoveryRefDocument = MyBase.ClientProtocol.Discover(Url)
      Catch e As Exception
         Throw e
      End Try
   End Sub

   Protected Overloads Overrides
 Sub _
      Resolve(ByVal contentType As String,
 ByVal stream As Stream)
   End Sub

   Public Overrides Property
 Url() As String
      Get
         Return myDocumentUrl
      End Get

      Set(ByVal Value As
 String)
         myDocumentUrl = Value
      End Set
   End Property

   Public Overrides Sub
 WriteDocument _
      (ByVal document As Object,
 ByVal stream As System.IO.Stream)
      Dim myDiscoveryDocument As DiscoveryDocument
 = _
         CType(document, DiscoveryDocument)
      myDiscoveryDocument.Write(stream)
   End Sub
End Class

using System;
using System.IO;
using System.Web.Services.Discovery;
using System.Net;

class MyDiscoveryDocumentClass
{
   static void Main()
   {
      DiscoveryDocument myDiscoveryDocument;
      StreamReader myStreamReader = 
         new StreamReader("c:\\Inetpub\\wwwroot\\dataservice.disco");
      FileStream myStream = 
         new FileStream("C:\\MyDiscovery.disco",FileMode.OpenOrCreate);
      Console.WriteLine("Demonstrating Discovery Reference class.");

      // Read discovery file.
      myDiscoveryDocument = DiscoveryDocument.Read(myStreamReader);

      // Variable of type DiscoveryReference class defined.
      MyDiscoveryReferenceClass myDiscoveryReference;
      myDiscoveryReference =  new MyDiscoveryReferenceClass();

      DiscoveryClientProtocol myDiscoveryClientProtocol = 
         new DiscoveryClientProtocol();
      myDiscoveryClientProtocol.Credentials = 
         CredentialCache.DefaultCredentials;

      // Set client protocol.
      myDiscoveryReference.ClientProtocol = myDiscoveryClientProtocol;
      
      // Read the default file name.
      Console.WriteLine("Default file name is: " + myDiscoveryReference.DefaultFilename);

      // Write the document.
      myDiscoveryReference.WriteDocument(myDiscoveryDocument,myStream);

      // Read the document.
      myDiscoveryReference.ReadDocument(myStream);

      // Set the URL.
      myDiscoveryReference.Url = "http://localhost/dataservice.disco";
      Console.WriteLine("Url is: " + myDiscoveryReference.Url);

      // Resolve the URL.
      myDiscoveryReference.Resolve();

      myStreamReader.Close();
      myStream.Close();
   }
}

// Class derived from DiscoveryReference class and overriding its members.
class MyDiscoveryReferenceClass : DiscoveryReference
{
   private string myDocumentUrl;
   public override string DefaultFilename
   {
      get
      {
         return "dataservice.disco";
      }
   }

   public override object ReadDocument(Stream stream)
   {
      return stream;
   }

   public new void Resolve()
   {
      try
      {
         DiscoveryDocument myDiscoveryRefDocument;
         myDiscoveryRefDocument = base.ClientProtocol.Discover(Url);
      }
      catch (Exception e)
      {
         throw(e);
      }
   }

   protected override void Resolve(string
 contentType, Stream stream) {}

   public override string Url
   {
      get
      {
         return myDocumentUrl;
      }

      set
      {
         myDocumentUrl = value;
      }
   }

   public override void WriteDocument(object
 document, System.IO.Stream stream)
   {
      DiscoveryDocument myDiscoveryDocument = (DiscoveryDocument)document;
      myDiscoveryDocument.Write(stream);
   }
}

C++

#using <System.dll>
#using <System.Xml.dll>
#using <System.Web.Services.dll>

using namespace System;
using namespace System::IO;
using namespace System::Web::Services::Discovery;
using namespace System::Net;

// Class derived from DiscoveryReference class and overriding its members.
ref class MyDiscoveryReferenceClass: public
 DiscoveryReference
{
private:
   String^ myDocumentUrl;

public:
   property String^ DefaultFilename 
   {
      virtual String^ get() override
      {
         return "dataservice.disco";
      }
   }

   virtual Object^ ReadDocument( Stream^ stream ) override
   {
      return stream;
   }

   void Resolve()
   {
      try
      {
         DiscoveryDocument^ myDiscoveryRefDocument;
         myDiscoveryRefDocument = __super::ClientProtocol->Discover( Url );
      }
      catch ( Exception^ e ) 
      {
         throw e;
      }
   }

protected:
   virtual void Resolve( String^ contentType, Stream^ stream )
 override {}

public:

   property String^ Url 
   {
      virtual String^ get() override
      {
         return myDocumentUrl;
      }

      virtual void set( String^ value ) override
      {
         myDocumentUrl = value;
      }
   }
   virtual void WriteDocument( Object^ document, System::IO::Stream^
 stream ) override
   {
      DiscoveryDocument^ myDiscoveryDocument = dynamic_cast<DiscoveryDocument^>(document);
      myDiscoveryDocument->Write( stream );
   }
};

int main()
{
   DiscoveryDocument^ myDiscoveryDocument;
   StreamReader^ myStreamReader = gcnew StreamReader( "c:\\Inetpub\\wwwroot\\dataservice.disco"
 );
   FileStream^ myStream = gcnew FileStream( "C:\\MyDiscovery.disco",FileMode::OpenOrCreate
 );
   Console::WriteLine( "Demonstrating Discovery Reference class."
 );
   
   // Read discovery file.
   myDiscoveryDocument = DiscoveryDocument::Read( myStreamReader );
   
   // Variable of type DiscoveryReference class defined.
   MyDiscoveryReferenceClass^ myDiscoveryReference;
   myDiscoveryReference = gcnew MyDiscoveryReferenceClass;
   DiscoveryClientProtocol^ myDiscoveryClientProtocol = gcnew DiscoveryClientProtocol;
   myDiscoveryClientProtocol->Credentials = CredentialCache::DefaultCredentials;
   
   // Set client protocol.
   myDiscoveryReference->ClientProtocol = myDiscoveryClientProtocol;
   
   // Read the default file name.
   Console::WriteLine( "Default file name is: {0}", myDiscoveryReference->DefaultFilename
 );
   
   // Write the document.
   myDiscoveryReference->WriteDocument( myDiscoveryDocument, myStream );
   
   // Read the document.
   myDiscoveryReference->ReadDocument( myStream );
   
   // Set the URL.
   myDiscoveryReference->Url = "http://localhost/dataservice.disco";
   Console::WriteLine( "Url is: {0}", myDiscoveryReference->Url );
   
   // Resolve the URL.
   myDiscoveryReference->Resolve();
   myStreamReader->Close();
   myStream->Close();
}

プラットフォーム

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
DiscoveryReference クラス
DiscoveryReference メンバ
System.Web.Services.Discovery 名前空間

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DiscoveryReference.ReadDocument メソッドとは？ わかりやすく解説

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DiscoveryReference.ReadDocument メソッドとは？わかりやすく解説