JsonClassDataContract.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Runtime / Serialization / Json / JsonClassDataContract.cs / 1305376 / JsonClassDataContract.cs

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

namespace System.Runtime.Serialization.Json 
{
    using System.Threading; 
    using System.Xml; 
    using System.Diagnostics;
    using System.ServiceModel; 
    using System.Collections.Generic;
    using System.Security;

    class JsonClassDataContract : JsonDataContract 
    {
        [Fx.Tag.SecurityNote(Critical = "Holds instance of CriticalHelper which keeps state that is cached statically for serialization." 
            + "Static fields are marked SecurityCritical or readonly to prevent data from being modified or leaked to other components in appdomain.")] 
        [SecurityCritical]
        JsonClassDataContractCriticalHelper helper; 

        [Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'.",
            Safe = "Doesn't leak anything.")]
        [SecuritySafeCritical] 
        public JsonClassDataContract(ClassDataContract traditionalDataContract) : base(new JsonClassDataContractCriticalHelper(traditionalDataContract))
        { 
            this.helper = base.Helper as JsonClassDataContractCriticalHelper; 
        }
 
        internal JsonFormatClassReaderDelegate JsonFormatReaderDelegate
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatReaderDelegate property.",
                Safe = "JsonFormatReaderDelegate only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get 
            { 
                if (helper.JsonFormatReaderDelegate == null)
                { 
                    lock (this)
                    {
                        if (helper.JsonFormatReaderDelegate == null)
                        { 
                            JsonFormatClassReaderDelegate tempDelegate = new JsonFormatReaderGenerator().GenerateClassReader(TraditionalClassDataContract);
                            Thread.MemoryBarrier(); 
                            helper.JsonFormatReaderDelegate = tempDelegate; 
                        }
                    } 
                }
                return helper.JsonFormatReaderDelegate;
            }
        } 

        internal JsonFormatClassWriterDelegate JsonFormatWriterDelegate 
        { 
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatWriterDelegate property.",
                Safe = "JsonFormatWriterDelegate only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get
            {
                if (helper.JsonFormatWriterDelegate == null) 
                {
                    lock (this) 
                    { 
                        if (helper.JsonFormatWriterDelegate == null)
                        { 
                            JsonFormatClassWriterDelegate tempDelegate = new JsonFormatWriterGenerator().GenerateClassWriter(TraditionalClassDataContract);
                            Thread.MemoryBarrier();
                            helper.JsonFormatWriterDelegate = tempDelegate;
                        } 
                    }
                } 
                return helper.JsonFormatWriterDelegate; 
            }
        } 

        internal XmlDictionaryString[] MemberNames
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical MemberNames property.", 
                Safe = "MemberNames only needs to be protected for write.")]
            [SecuritySafeCritical] 
            get { return this.helper.MemberNames; } 
        }
 
        internal override string TypeName
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical TypeName property.",
                Safe =  "TypeName only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get { return this.helper.TypeName; } 
        } 

 
        ClassDataContract TraditionalClassDataContract
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical TraditionalClassDataContract property.",
                Safe = "TraditionalClassDataContract only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get { return this.helper.TraditionalClassDataContract; } 
        } 

        public override object ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context) 
        {
            jsonReader.Read();
            object o = JsonFormatReaderDelegate(jsonReader, context, XmlDictionaryString.Empty, MemberNames);
            jsonReader.ReadEndElement(); 
            return o;
        } 
 
        public override void WriteJsonValueCore(XmlWriterDelegator jsonWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, RuntimeTypeHandle declaredTypeHandle)
        { 
            jsonWriter.WriteAttributeString(null, JsonGlobals.typeString, null, JsonGlobals.objectString);
            JsonFormatWriterDelegate(jsonWriter, obj, context, TraditionalClassDataContract, MemberNames);
        }
 
        [Fx.Tag.SecurityNote(Critical = "Holds all state used for (de)serializing types."
            + "Since the data is cached statically, we lock down access to it.")] 
#pragma warning disable 618 // have not moved to the v4 security model yet 
        [SecurityCritical(SecurityCriticalScope.Everything)]
#pragma warning restore 618 
        class JsonClassDataContractCriticalHelper : JsonDataContractCriticalHelper
        {
            JsonFormatClassReaderDelegate jsonFormatReaderDelegate;
            JsonFormatClassWriterDelegate jsonFormatWriterDelegate; 
            XmlDictionaryString[] memberNames;
            ClassDataContract traditionalClassDataContract; 
            string typeName; 

            public JsonClassDataContractCriticalHelper(ClassDataContract traditionalDataContract) 
                : base(traditionalDataContract)
            {
                this.typeName = string.IsNullOrEmpty(traditionalDataContract.Namespace.Value) ? traditionalDataContract.Name.Value : string.Concat(traditionalDataContract.Name.Value, JsonGlobals.NameValueSeparatorString, XmlObjectSerializerWriteContextComplexJson.TruncateDefaultDataContractNamespace(traditionalDataContract.Namespace.Value));
                this.traditionalClassDataContract = traditionalDataContract; 
                CopyMembersAndCheckDuplicateNames();
            } 
 
            internal JsonFormatClassReaderDelegate JsonFormatReaderDelegate
            { 
                get { return this.jsonFormatReaderDelegate; }
                set { this.jsonFormatReaderDelegate = value; }
            }
 
            internal JsonFormatClassWriterDelegate JsonFormatWriterDelegate
            { 
                get { return this.jsonFormatWriterDelegate; } 
                set { this.jsonFormatWriterDelegate = value; }
            } 

            internal XmlDictionaryString[] MemberNames
            {
                get { return this.memberNames; } 
            }
 
            internal ClassDataContract TraditionalClassDataContract 
            {
                get { return this.traditionalClassDataContract; } 
            }

            void CopyMembersAndCheckDuplicateNames()
            { 
                if (traditionalClassDataContract.MemberNames != null)
                { 
                    int memberCount = traditionalClassDataContract.MemberNames.Length; 
                    Dictionary memberTable = new Dictionary(memberCount);
                    XmlDictionaryString[] decodedMemberNames = new XmlDictionaryString[memberCount]; 
                    for (int i = 0; i < memberCount; i++)
                    {
                        if (memberTable.ContainsKey(traditionalClassDataContract.MemberNames[i].Value))
                        { 
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString(SR.JsonDuplicateMemberNames,
                                DataContract.GetClrTypeFullName(traditionalClassDataContract.UnderlyingType), traditionalClassDataContract.MemberNames[i].Value))); 
                        } 
                        else
                        { 
                            memberTable.Add(traditionalClassDataContract.MemberNames[i].Value, null);
                            decodedMemberNames[i] = DataContractJsonSerializer.ConvertXmlNameToJsonName(traditionalClassDataContract.MemberNames[i]);
                        }
                    } 
                    this.memberNames = decodedMemberNames;
                } 
            } 
        }
 
    }
}

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

namespace System.Runtime.Serialization.Json 
{
    using System.Threading; 
    using System.Xml; 
    using System.Diagnostics;
    using System.ServiceModel; 
    using System.Collections.Generic;
    using System.Security;

    class JsonClassDataContract : JsonDataContract 
    {
        [Fx.Tag.SecurityNote(Critical = "Holds instance of CriticalHelper which keeps state that is cached statically for serialization." 
            + "Static fields are marked SecurityCritical or readonly to prevent data from being modified or leaked to other components in appdomain.")] 
        [SecurityCritical]
        JsonClassDataContractCriticalHelper helper; 

        [Fx.Tag.SecurityNote(Critical = "Initializes SecurityCritical field 'helper'.",
            Safe = "Doesn't leak anything.")]
        [SecuritySafeCritical] 
        public JsonClassDataContract(ClassDataContract traditionalDataContract) : base(new JsonClassDataContractCriticalHelper(traditionalDataContract))
        { 
            this.helper = base.Helper as JsonClassDataContractCriticalHelper; 
        }
 
        internal JsonFormatClassReaderDelegate JsonFormatReaderDelegate
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatReaderDelegate property.",
                Safe = "JsonFormatReaderDelegate only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get 
            { 
                if (helper.JsonFormatReaderDelegate == null)
                { 
                    lock (this)
                    {
                        if (helper.JsonFormatReaderDelegate == null)
                        { 
                            JsonFormatClassReaderDelegate tempDelegate = new JsonFormatReaderGenerator().GenerateClassReader(TraditionalClassDataContract);
                            Thread.MemoryBarrier(); 
                            helper.JsonFormatReaderDelegate = tempDelegate; 
                        }
                    } 
                }
                return helper.JsonFormatReaderDelegate;
            }
        } 

        internal JsonFormatClassWriterDelegate JsonFormatWriterDelegate 
        { 
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical JsonFormatWriterDelegate property.",
                Safe = "JsonFormatWriterDelegate only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get
            {
                if (helper.JsonFormatWriterDelegate == null) 
                {
                    lock (this) 
                    { 
                        if (helper.JsonFormatWriterDelegate == null)
                        { 
                            JsonFormatClassWriterDelegate tempDelegate = new JsonFormatWriterGenerator().GenerateClassWriter(TraditionalClassDataContract);
                            Thread.MemoryBarrier();
                            helper.JsonFormatWriterDelegate = tempDelegate;
                        } 
                    }
                } 
                return helper.JsonFormatWriterDelegate; 
            }
        } 

        internal XmlDictionaryString[] MemberNames
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical MemberNames property.", 
                Safe = "MemberNames only needs to be protected for write.")]
            [SecuritySafeCritical] 
            get { return this.helper.MemberNames; } 
        }
 
        internal override string TypeName
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical TypeName property.",
                Safe =  "TypeName only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get { return this.helper.TypeName; } 
        } 

 
        ClassDataContract TraditionalClassDataContract
        {
            [Fx.Tag.SecurityNote(Critical = "Fetches the critical TraditionalClassDataContract property.",
                Safe = "TraditionalClassDataContract only needs to be protected for write.")] 
            [SecuritySafeCritical]
            get { return this.helper.TraditionalClassDataContract; } 
        } 

        public override object ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context) 
        {
            jsonReader.Read();
            object o = JsonFormatReaderDelegate(jsonReader, context, XmlDictionaryString.Empty, MemberNames);
            jsonReader.ReadEndElement(); 
            return o;
        } 
 
        public override void WriteJsonValueCore(XmlWriterDelegator jsonWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, RuntimeTypeHandle declaredTypeHandle)
        { 
            jsonWriter.WriteAttributeString(null, JsonGlobals.typeString, null, JsonGlobals.objectString);
            JsonFormatWriterDelegate(jsonWriter, obj, context, TraditionalClassDataContract, MemberNames);
        }
 
        [Fx.Tag.SecurityNote(Critical = "Holds all state used for (de)serializing types."
            + "Since the data is cached statically, we lock down access to it.")] 
#pragma warning disable 618 // have not moved to the v4 security model yet 
        [SecurityCritical(SecurityCriticalScope.Everything)]
#pragma warning restore 618 
        class JsonClassDataContractCriticalHelper : JsonDataContractCriticalHelper
        {
            JsonFormatClassReaderDelegate jsonFormatReaderDelegate;
            JsonFormatClassWriterDelegate jsonFormatWriterDelegate; 
            XmlDictionaryString[] memberNames;
            ClassDataContract traditionalClassDataContract; 
            string typeName; 

            public JsonClassDataContractCriticalHelper(ClassDataContract traditionalDataContract) 
                : base(traditionalDataContract)
            {
                this.typeName = string.IsNullOrEmpty(traditionalDataContract.Namespace.Value) ? traditionalDataContract.Name.Value : string.Concat(traditionalDataContract.Name.Value, JsonGlobals.NameValueSeparatorString, XmlObjectSerializerWriteContextComplexJson.TruncateDefaultDataContractNamespace(traditionalDataContract.Namespace.Value));
                this.traditionalClassDataContract = traditionalDataContract; 
                CopyMembersAndCheckDuplicateNames();
            } 
 
            internal JsonFormatClassReaderDelegate JsonFormatReaderDelegate
            { 
                get { return this.jsonFormatReaderDelegate; }
                set { this.jsonFormatReaderDelegate = value; }
            }
 
            internal JsonFormatClassWriterDelegate JsonFormatWriterDelegate
            { 
                get { return this.jsonFormatWriterDelegate; } 
                set { this.jsonFormatWriterDelegate = value; }
            } 

            internal XmlDictionaryString[] MemberNames
            {
                get { return this.memberNames; } 
            }
 
            internal ClassDataContract TraditionalClassDataContract 
            {
                get { return this.traditionalClassDataContract; } 
            }

            void CopyMembersAndCheckDuplicateNames()
            { 
                if (traditionalClassDataContract.MemberNames != null)
                { 
                    int memberCount = traditionalClassDataContract.MemberNames.Length; 
                    Dictionary memberTable = new Dictionary(memberCount);
                    XmlDictionaryString[] decodedMemberNames = new XmlDictionaryString[memberCount]; 
                    for (int i = 0; i < memberCount; i++)
                    {
                        if (memberTable.ContainsKey(traditionalClassDataContract.MemberNames[i].Value))
                        { 
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString(SR.JsonDuplicateMemberNames,
                                DataContract.GetClrTypeFullName(traditionalClassDataContract.UnderlyingType), traditionalClassDataContract.MemberNames[i].Value))); 
                        } 
                        else
                        { 
                            memberTable.Add(traditionalClassDataContract.MemberNames[i].Value, null);
                            decodedMemberNames[i] = DataContractJsonSerializer.ConvertXmlNameToJsonName(traditionalClassDataContract.MemberNames[i]);
                        }
                    } 
                    this.memberNames = decodedMemberNames;
                } 
            } 
        }
 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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