MsmqIntegrationChannelFactory.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / MsmqIntegration / MsmqIntegrationChannelFactory.cs / 1 / MsmqIntegrationChannelFactory.cs

                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.MsmqIntegration
{ 
    using System.Runtime.Serialization;
    using System.ServiceModel; 
    using System.Runtime.Serialization.Formatters.Binary; // for BinaryFormatter 
    using System.Xml.Serialization; // for XmlSerializer
    using System.IO; // for Stream 
    using System.Collections.Specialized; //For HybridDictionary
    using System.ServiceModel.Channels;

    sealed class MsmqIntegrationChannelFactory : MsmqChannelFactoryBase 
    {
        ActiveXSerializer activeXSerializer; 
        BinaryFormatter binaryFormatter; 
        MsmqMessageSerializationFormat serializationFormat;
        HybridDictionary xmlSerializerTable; 
        const int maxSerializerTableSize = 1024;

        internal MsmqIntegrationChannelFactory(MsmqIntegrationBindingElement bindingElement, BindingContext context)
            : base(bindingElement, context, null) 
        {
            this.serializationFormat = bindingElement.SerializationFormat; 
        } 

        BinaryFormatter BinaryFormatter 
        {
            get
            {
                if (this.binaryFormatter == null) 
                {
                    lock(ThisLock) 
                    { 
                        if (this.binaryFormatter == null)
                            this.binaryFormatter = new BinaryFormatter(); 
                    }
                }

                return this.binaryFormatter; 
            }
        } 
 

        ActiveXSerializer ActiveXSerializer 
        {
            get
            {
                if (this.activeXSerializer == null) 
                {
                    lock(ThisLock) 
                    { 
                        if (this.activeXSerializer == null)
                            this.activeXSerializer = new ActiveXSerializer(); 
                    }
                }

                return this.activeXSerializer; 
            }
        } 
 

        XmlSerializer GetXmlSerializerForType(Type serializedType) 
        {
            if (this.xmlSerializerTable == null)
            {
                lock(ThisLock) 
                {
                    if (this.xmlSerializerTable == null) 
                        this.xmlSerializerTable = new HybridDictionary(); 
                }
            } 

            XmlSerializer serializer = (XmlSerializer)this.xmlSerializerTable[serializedType];
            if (serializer != null)
            { 
                return serializer;
            } 
 
            lock(ThisLock)
            { 
                if (this.xmlSerializerTable.Count >= maxSerializerTableSize)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                        new CommunicationException(SR.GetString(SR.MsmqSerializationTableFull, maxSerializerTableSize)));
                // double-locking 
                serializer = (XmlSerializer)this.xmlSerializerTable[serializedType];
                if (serializer != null) 
                { 
                    return serializer;
                } 

                serializer = new XmlSerializer(serializedType);
                this.xmlSerializerTable[serializedType] = serializer;
 
                return serializer;
            } 
        } 

 
        public MsmqMessageSerializationFormat SerializationFormat
        {
            get
            { 
                ThrowIfDisposed();
                return this.serializationFormat; 
            } 
        }
 
        protected override IOutputChannel OnCreateChannel(EndpointAddress to, Uri via)
        {
            base.ValidateScheme(via);
            return new MsmqIntegrationOutputChannel(this, to, via, ManualAddressing); 
        }
 
    // 
        // Returns stream containing serialized body
        // In case of MsmqMessageSerializationFormat.Stream, 
        // returns body as Stream, and throws exception if body is not a Stream
        //
        internal Stream Serialize(MsmqIntegrationMessageProperty property)
        { 
            Stream stream;
            switch (this.SerializationFormat) 
            { 
                case MsmqMessageSerializationFormat.Xml:
                    stream = new MemoryStream(); 
                    XmlSerializer serializer = GetXmlSerializerForType(property.Body.GetType());
                    serializer.Serialize(stream, property.Body);
                    return stream;
 
                case MsmqMessageSerializationFormat.Binary:
                    stream = new MemoryStream(); 
                    BinaryFormatter.Serialize(stream, property.Body); 
                    // need to set BodyType to a magic number used by System.Messaging
                    property.BodyType = 0x300; 
                    return stream;

                case MsmqMessageSerializationFormat.ActiveX:
                    if (property.BodyType.HasValue) 
                    {
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new  ArgumentException(SR.GetString(SR.MsmqCannotUseBodyTypeWithActiveXSerialization))); 
                    } 

                    stream = new MemoryStream(); 
                    int bodyType = 0;
                    ActiveXSerializer.Serialize(stream as MemoryStream, property.Body, ref bodyType);
                    property.BodyType = bodyType;
                    return stream; 

                case MsmqMessageSerializationFormat.ByteArray: 
                   // body MUST be byte array 
                   byte[] byteArray = property.Body as byte[];
                   if (byteArray == null) 
                       throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString(SR.MsmqByteArrayBodyExpected)));

                   stream = new MemoryStream();
                   stream.Write(byteArray, 0, byteArray.Length); 
                   return stream;
 
                case MsmqMessageSerializationFormat.Stream: 
                    // body MUST be a stream
                    Stream bodyStream = property.Body as Stream; 
                    if (bodyStream == null)
                       throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new  SerializationException(SR.GetString(SR.MsmqStreamBodyExpected)));

                    // NOTE: we don't copy here as a perf optimization, but this might be dangerous 
                    return bodyStream;
 
                default: 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString(SR.MsmqUnsupportedSerializationFormat, this.SerializationFormat)));
            } 

        }

    } 
}
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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