DataContractSerializerOperationGenerator.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 / Description / DataContractSerializerOperationGenerator.cs / 1 / DataContractSerializerOperationGenerator.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

using System.Collections.Generic; 
using System.ServiceModel.Channels;
using System.ServiceModel; 
using System.ServiceModel.Dispatcher; 
using System.CodeDom;
using System.Globalization; 
using System.Text;
using System.Runtime.Serialization;
using System.Collections;
 
namespace System.ServiceModel.Description
{ 
    class DataContractSerializerOperationGenerator : IOperationBehavior, IOperationContractGenerationExtension 
    {
        Dictionary operationAttributes = new Dictionary(); 
        OperationGenerator operationGenerator;
        Dictionary> knownTypes;
        Dictionary isNonNillableReferenceTypes;
        CodeCompileUnit codeCompileUnit; 

        internal DataContractSerializerOperationGenerator() : this(new CodeCompileUnit()) { } 
        internal DataContractSerializerOperationGenerator(CodeCompileUnit codeCompileUnit) 
        {
            this.codeCompileUnit = codeCompileUnit; 
            this.operationGenerator = new OperationGenerator();
        }

        internal void Add(MessagePartDescription part, CodeTypeReference typeReference, ICollection knownTypeReferences, bool isNonNillableReferenceType) 
        {
            OperationGenerator.ParameterTypes.Add(part, typeReference); 
            if (knownTypeReferences != null) 
                KnownTypes.Add(part, knownTypeReferences);
            if (isNonNillableReferenceType) 
            {
                if (isNonNillableReferenceTypes == null)
                    isNonNillableReferenceTypes = new Dictionary();
                isNonNillableReferenceTypes.Add(part, isNonNillableReferenceType); 
            }
        } 
 

        internal OperationGenerator OperationGenerator 
        {
            get { return this.operationGenerator; }
        }
 
        internal Dictionary OperationAttributes
        { 
            get { return operationAttributes; } 
        }
 
        internal Dictionary> KnownTypes
        {
            get
            { 
                if (this.knownTypes == null)
                    this.knownTypes = new Dictionary>(); 
                return this.knownTypes; 
            }
        } 

        void IOperationBehavior.Validate(OperationDescription description)
        {
        } 

        void IOperationBehavior.ApplyDispatchBehavior(OperationDescription description, DispatchOperation dispatch) { } 
 
        void IOperationBehavior.ApplyClientBehavior(OperationDescription description, ClientOperation proxy) { }
 
        void IOperationBehavior.AddBindingParameters(OperationDescription description, BindingParameterCollection parameters) { }

        // Assumption: gets called exactly once per operation
        void IOperationContractGenerationExtension.GenerateOperation(OperationContractGenerationContext context) 
        {
            DataContractSerializerOperationBehavior DataContractSerializerOperationBehavior = context.Operation.Behaviors.Find() as DataContractSerializerOperationBehavior; 
            DataContractFormatAttribute dataContractFormatAttribute = (DataContractSerializerOperationBehavior == null)? new DataContractFormatAttribute() : DataContractSerializerOperationBehavior.DataContractFormatAttribute; 
            OperationFormatStyle style = dataContractFormatAttribute.Style;
            operationGenerator.GenerateOperation(context, ref style, false/*isEncoded*/, new WrappedBodyTypeGenerator(this, context), knownTypes); 
            dataContractFormatAttribute.Style = style;
            if (dataContractFormatAttribute.Style != TypeLoader.DefaultDataContractFormatAttribute.Style)
                context.SyncMethod.CustomAttributes.Add(OperationGenerator.GenerateAttributeDeclaration(context.Contract.ServiceContractGenerator, dataContractFormatAttribute));
            if (knownTypes != null) 
            {
                Dictionary operationKnownTypes = new Dictionary(new CodeTypeReferenceComparer()); 
                foreach (MessageDescription message in context.Operation.Messages) 
                {
                    foreach (MessagePartDescription part in message.Body.Parts) 
                        AddKnownTypesForPart(context, part, operationKnownTypes);
                    foreach (MessageHeaderDescription header in message.Headers)
                        AddKnownTypesForPart(context, header, operationKnownTypes);
                    if (OperationFormatter.IsValidReturnValue(message.Body.ReturnValue)) 
                        AddKnownTypesForPart(context, message.Body.ReturnValue, operationKnownTypes);
                } 
            } 
            UpdateTargetCompileUnit(context, this.codeCompileUnit);
        } 

        void AddKnownTypesForPart(OperationContractGenerationContext context, MessagePartDescription part, Dictionary operationKnownTypes)
        {
            ICollection knownTypesForPart; 
            if (knownTypes.TryGetValue(part, out knownTypesForPart))
            { 
                foreach (CodeTypeReference knownTypeReference in knownTypesForPart) 
                {
                    object value; 
                    if (!operationKnownTypes.TryGetValue(knownTypeReference, out value))
                    {
                        operationKnownTypes.Add(knownTypeReference, null);
                        CodeAttributeDeclaration knownTypeAttribute = new CodeAttributeDeclaration(typeof(ServiceKnownTypeAttribute).FullName); 
                        knownTypeAttribute.Arguments.Add(new CodeAttributeArgument(new CodeTypeOfExpression(knownTypeReference)));
                        context.SyncMethod.CustomAttributes.Add(knownTypeAttribute); 
                    } 
                }
            } 
        }

        internal static void UpdateTargetCompileUnit(OperationContractGenerationContext context, CodeCompileUnit codeCompileUnit)
        { 
            CodeCompileUnit targetCompileUnit = context.ServiceContractGenerator.TargetCompileUnit;
            if (!Object.ReferenceEquals(targetCompileUnit, codeCompileUnit)) 
            { 
                foreach (CodeNamespace codeNamespace in codeCompileUnit.Namespaces)
                    if (!targetCompileUnit.Namespaces.Contains(codeNamespace)) 
                        targetCompileUnit.Namespaces.Add(codeNamespace);
                foreach (string referencedAssembly in codeCompileUnit.ReferencedAssemblies)
                    if (!targetCompileUnit.ReferencedAssemblies.Contains(referencedAssembly))
                        targetCompileUnit.ReferencedAssemblies.Add(referencedAssembly); 
                foreach (CodeAttributeDeclaration assemblyCustomAttribute in codeCompileUnit.AssemblyCustomAttributes)
                    if (!targetCompileUnit.AssemblyCustomAttributes.Contains(assemblyCustomAttribute)) 
                        targetCompileUnit.AssemblyCustomAttributes.Add(assemblyCustomAttribute); 
                foreach (CodeDirective startDirective in codeCompileUnit.StartDirectives)
                    if (!targetCompileUnit.StartDirectives.Contains(startDirective)) 
                        targetCompileUnit.StartDirectives.Add(startDirective);
                foreach (CodeDirective endDirective in codeCompileUnit.EndDirectives)
                    if (!targetCompileUnit.EndDirectives.Contains(endDirective))
                        targetCompileUnit.EndDirectives.Add(endDirective); 
                foreach (DictionaryEntry userData in codeCompileUnit.UserData)
                    targetCompileUnit.UserData[userData.Key] = userData.Value; 
            } 
        }
 
        internal class WrappedBodyTypeGenerator : IWrappedBodyTypeGenerator
        {
            static CodeTypeReference dataContractAttributeTypeRef = new CodeTypeReference(typeof(DataContractAttribute));
            int memberCount; 
            OperationContractGenerationContext context;
            DataContractSerializerOperationGenerator dataContractSerializerOperationGenerator; 
            public void ValidateForParameterMode(OperationDescription operation) 
            {
                if (dataContractSerializerOperationGenerator.isNonNillableReferenceTypes == null) 
                    return;
                foreach (MessageDescription messageDescription in operation.Messages)
                {
                    if (messageDescription.Body != null) 
                    {
                        if (messageDescription.Body.ReturnValue != null) 
                            ValidateForParameterMode(messageDescription.Body.ReturnValue); 
                        foreach (MessagePartDescription bodyPart in messageDescription.Body.Parts)
                        { 
                            ValidateForParameterMode(bodyPart);
                        }
                    }
                } 
            }
 
            void ValidateForParameterMode(MessagePartDescription part) 
            {
                if (dataContractSerializerOperationGenerator.isNonNillableReferenceTypes.ContainsKey(part)) 
                {
                    ParameterModeException parameterModeException = new ParameterModeException(SR.GetString(SR.SFxCannotImportAsParameters_ElementIsNotNillable, part.Name, part.Namespace));
                    parameterModeException.MessageContractType = MessageContractType.BareMessageContract;
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(parameterModeException); 
                }
            } 
 
            public WrappedBodyTypeGenerator(DataContractSerializerOperationGenerator dataContractSerializerOperationGenerator, OperationContractGenerationContext context)
            { 
                this.context = context;
                this.dataContractSerializerOperationGenerator = dataContractSerializerOperationGenerator;
            }
 
            public void AddMemberAttributes(XmlName messageName, MessagePartDescription part, CodeAttributeDeclarationCollection attributesImported, CodeAttributeDeclarationCollection typeAttributes, CodeAttributeDeclarationCollection fieldAttributes)
            { 
                CodeAttributeDeclaration dataContractAttributeDecl = null; 
                foreach (CodeAttributeDeclaration attr in typeAttributes)
                { 
                    if (attr.AttributeType.BaseType == dataContractAttributeTypeRef.BaseType)
                    {
                        dataContractAttributeDecl = attr;
                        break; 
                    }
 
                } 

                if (dataContractAttributeDecl == null) 
                {
                    DiagnosticUtility.DebugAssert(String.Format(CultureInfo.InvariantCulture, "Cannot find DataContract attribute for  {0}", messageName));

                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(String.Format(CultureInfo.InvariantCulture, "Cannot find DataContract attribute for  {0}", messageName))); 
                }
                bool nsAttrFound = false; 
                foreach (CodeAttributeArgument attrArg in dataContractAttributeDecl.Arguments) 
                {
                    if (attrArg.Name == "Namespace") 
                    {
                        nsAttrFound = true;
                        string nsValue = ((CodePrimitiveExpression)attrArg.Value).Value.ToString();
                        if (nsValue != part.Namespace) 
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.SFxWrapperTypeHasMultipleNamespaces, messageName)));
                    } 
                } 
                if (!nsAttrFound)
                    dataContractAttributeDecl.Arguments.Add(new CodeAttributeArgument("Namespace", new CodePrimitiveExpression(part.Namespace))); 

                DataMemberAttribute dataMemberAttribute = new DataMemberAttribute();
                dataMemberAttribute.Order = memberCount++;
                dataMemberAttribute.EmitDefaultValue = !IsNonNillableReferenceType(part); 
                fieldAttributes.Add(OperationGenerator.GenerateAttributeDeclaration(context.Contract.ServiceContractGenerator, dataMemberAttribute));
 
            } 

            private bool IsNonNillableReferenceType(MessagePartDescription part) 
            {
                if (dataContractSerializerOperationGenerator.isNonNillableReferenceTypes == null)
                    return false;
                return dataContractSerializerOperationGenerator.isNonNillableReferenceTypes.ContainsKey(part); 
            }
 
            public void AddTypeAttributes(string messageName, string typeNS, CodeAttributeDeclarationCollection typeAttributes, bool isEncoded) 
            {
                typeAttributes.Add(OperationGenerator.GenerateAttributeDeclaration(context.Contract.ServiceContractGenerator, new DataContractAttribute())); 
                memberCount = 0;
            }
        }
 
        class CodeTypeReferenceComparer : IEqualityComparer
        { 
            public bool Equals(CodeTypeReference x, CodeTypeReference y) 
            {
                if (Object.ReferenceEquals(x, y)) 
                    return true;

                if (x == null || y == null || x.ArrayRank != y.ArrayRank || x.BaseType != y.BaseType)
                    return false; 

                CodeTypeReferenceCollection xTypeArgs = x.TypeArguments; 
                CodeTypeReferenceCollection yTypeArgs = y.TypeArguments; 
                if (yTypeArgs.Count == xTypeArgs.Count)
                { 
                    foreach (CodeTypeReference xTypeArg in xTypeArgs)
                    {
                        foreach (CodeTypeReference yTypeArg in yTypeArgs)
                        { 
                            if (!this.Equals(xTypeArg, xTypeArg))
                                return false; 
                        } 
                    }
                } 
                return true;
            }

            public int GetHashCode(CodeTypeReference obj) 
            {
                return obj.GetHashCode(); 
            } 
        }
 
    }
}

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

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