DictionaryContent.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataWeb / Server / System / Data / Services / Serializers / DictionaryContent.cs / 1 / DictionaryContent.cs

                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//  
//      Provides a syndication content that holds name/value pairs.
//  
// 
// @owner [....]
//--------------------------------------------------------------------- 

namespace System.Data.Services.Serializers
{
    #region Namespaces. 

    using System.Collections.Generic; 
    using System.Data.Services.Providers; 
    using System.Diagnostics;
    using System.ServiceModel.Syndication; 
    using System.Xml;

    #endregion Namespaces.
 
    /// 
    /// Use this class to hold the name/value pairs of content that will be written 
    /// to the content element of a syndication item. 
    /// 
    internal class DictionaryContent : SyndicationContent 
    {
        #region Private fields.

        /// Content for a property value: one of a string, dictionary or null. 
        private List valueContents;
 
        /// Names for property values. 
        private List valueNames;
 
        /// Declared type names for property values.
        private List valueTypes;

        #endregion Private fields. 

        #region Constructors. 
 
        /// Initializes a new DictionaryContent instance.
        public DictionaryContent() 
        {
            this.valueContents = new List();
            this.valueTypes = new List();
            this.valueNames = new List(); 
        }
 
        /// Initializes a new DictionaryContent instance. 
        /// Initial capacity for entries.
        public DictionaryContent(int capacity) 
        {
            this.valueContents = new List(capacity);
            this.valueTypes = new List(capacity);
            this.valueNames = new List(capacity); 
        }
 
        ///  
        /// Initializes a new DictionaryContent instance by copying values from
        /// the specified one. 
        /// 
        /// Dictionary to copy content from.
        /// This produces a shallow copy only.
        private DictionaryContent(DictionaryContent other) 
        {
            Debug.Assert(other != null, "other != null"); 
            this.valueContents = other.valueContents; 
            this.valueTypes = other.valueTypes;
            this.valueNames = other.valueNames; 
        }

        #endregion Constructors.
 
        #region Properties.
 
        /// The MIME type of this content. 
        public override string Type
        { 
            get { return XmlConstants.MimeApplicationXml; }
        }

        #endregion Properties. 

        #region Methods. 
 
        /// Creates a shallow copy of this content.
        /// A shallow copy of this content. 
        public override SyndicationContent Clone()
        {
            return new DictionaryContent(this);
        } 

        /// Adds the specified property. 
        /// Property name. 
        /// Expected type name for value.
        /// Property value in text form. 
        internal void Add(string name, string expectedTypeName, object value)
        {
            Debug.Assert(value != null, "value != null -- otherwise AddNull should have been called.");
            Debug.Assert( 
                value is DictionaryContent || value is string,
                "value is DictionaryContent || value is string -- only sub-dictionaries and formatted strings are allowed."); 
            Debug.Assert(!this.valueNames.Contains(name), "!this.valueNames.Contains(name) -- otherwise repeated property set."); 
            this.valueNames.Add(name);
            this.valueTypes.Add(expectedTypeName); 
            this.valueContents.Add(value);
            Debug.Assert(this.valueNames.Count == this.valueTypes.Count, "this.valueNames.Count == this.valueTypes.Count");
            Debug.Assert(this.valueNames.Count == this.valueContents.Count, "this.valueNames.Count == this.valueContents.Count");
        } 

        /// Adds a property with a null value. 
        /// Type for the property. 
        /// Property name.
        internal void AddNull(string expectedTypeName, string name) 
        {
            Debug.Assert(!this.valueNames.Contains(name), "!this.valueNames.Contains(name) -- otherwise repeated property set.");
            this.valueNames.Add(name);
            this.valueTypes.Add(expectedTypeName); 
            this.valueContents.Add(null);
            Debug.Assert(this.valueNames.Count == this.valueTypes.Count, "this.valueNames.Count == this.valueTypes.Count"); 
            Debug.Assert(this.valueNames.Count == this.valueContents.Count, "this.valueNames.Count == this.valueContents.Count"); 
        }
 
        /// Writes the contents of this SyndicationContent object to the specified XmlWriter.
        /// The XmlWriter to write to.
        protected override void WriteContentsTo(XmlWriter writer)
        { 
            if (0 < this.valueNames.Count)
            { 
                writer.WriteStartElement(XmlConstants.AtomPropertiesElementName, XmlConstants.DataWebMetadataNamespace); 
                this.WritePropertyContentsTo(writer);
                writer.WriteEndElement(); 
            }
        }

        /// Writes the contents of this SyndicationContent object to the specified XmlWriter. 
        /// The XmlWriter to write to.
        private void WritePropertyContentsTo(XmlWriter writer) 
        { 
            for (int i = 0; i < this.valueNames.Count; i++)
            { 
                string propertyName = this.valueNames[i];
                string propertyTypeName = this.valueTypes[i];
                object propertyValue = this.valueContents[i];
                if (propertyValue == null) 
                {
                    PlainXmlSerializer.WriteNullValue(writer, propertyName, propertyTypeName); 
                } 
                else if (propertyValue is DictionaryContent)
                { 
                    PlainXmlSerializer.WriteStartElementWithType(writer, propertyName, propertyTypeName);
                    ((DictionaryContent)propertyValue).WritePropertyContentsTo(writer);
                    writer.WriteEndElement();
                } 
                else
                { 
                    string propertyText = (string)propertyValue; 
                    PlainXmlSerializer.WriteTextValue(writer, propertyName, propertyTypeName, propertyText);
                } 
            }
        }

        #endregion Methods. 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//  
//      Provides a syndication content that holds name/value pairs.
//  
// 
// @owner [....]
//--------------------------------------------------------------------- 

namespace System.Data.Services.Serializers
{
    #region Namespaces. 

    using System.Collections.Generic; 
    using System.Data.Services.Providers; 
    using System.Diagnostics;
    using System.ServiceModel.Syndication; 
    using System.Xml;

    #endregion Namespaces.
 
    /// 
    /// Use this class to hold the name/value pairs of content that will be written 
    /// to the content element of a syndication item. 
    /// 
    internal class DictionaryContent : SyndicationContent 
    {
        #region Private fields.

        /// Content for a property value: one of a string, dictionary or null. 
        private List valueContents;
 
        /// Names for property values. 
        private List valueNames;
 
        /// Declared type names for property values.
        private List valueTypes;

        #endregion Private fields. 

        #region Constructors. 
 
        /// Initializes a new DictionaryContent instance.
        public DictionaryContent() 
        {
            this.valueContents = new List();
            this.valueTypes = new List();
            this.valueNames = new List(); 
        }
 
        /// Initializes a new DictionaryContent instance. 
        /// Initial capacity for entries.
        public DictionaryContent(int capacity) 
        {
            this.valueContents = new List(capacity);
            this.valueTypes = new List(capacity);
            this.valueNames = new List(capacity); 
        }
 
        ///  
        /// Initializes a new DictionaryContent instance by copying values from
        /// the specified one. 
        /// 
        /// Dictionary to copy content from.
        /// This produces a shallow copy only.
        private DictionaryContent(DictionaryContent other) 
        {
            Debug.Assert(other != null, "other != null"); 
            this.valueContents = other.valueContents; 
            this.valueTypes = other.valueTypes;
            this.valueNames = other.valueNames; 
        }

        #endregion Constructors.
 
        #region Properties.
 
        /// The MIME type of this content. 
        public override string Type
        { 
            get { return XmlConstants.MimeApplicationXml; }
        }

        #endregion Properties. 

        #region Methods. 
 
        /// Creates a shallow copy of this content.
        /// A shallow copy of this content. 
        public override SyndicationContent Clone()
        {
            return new DictionaryContent(this);
        } 

        /// Adds the specified property. 
        /// Property name. 
        /// Expected type name for value.
        /// Property value in text form. 
        internal void Add(string name, string expectedTypeName, object value)
        {
            Debug.Assert(value != null, "value != null -- otherwise AddNull should have been called.");
            Debug.Assert( 
                value is DictionaryContent || value is string,
                "value is DictionaryContent || value is string -- only sub-dictionaries and formatted strings are allowed."); 
            Debug.Assert(!this.valueNames.Contains(name), "!this.valueNames.Contains(name) -- otherwise repeated property set."); 
            this.valueNames.Add(name);
            this.valueTypes.Add(expectedTypeName); 
            this.valueContents.Add(value);
            Debug.Assert(this.valueNames.Count == this.valueTypes.Count, "this.valueNames.Count == this.valueTypes.Count");
            Debug.Assert(this.valueNames.Count == this.valueContents.Count, "this.valueNames.Count == this.valueContents.Count");
        } 

        /// Adds a property with a null value. 
        /// Type for the property. 
        /// Property name.
        internal void AddNull(string expectedTypeName, string name) 
        {
            Debug.Assert(!this.valueNames.Contains(name), "!this.valueNames.Contains(name) -- otherwise repeated property set.");
            this.valueNames.Add(name);
            this.valueTypes.Add(expectedTypeName); 
            this.valueContents.Add(null);
            Debug.Assert(this.valueNames.Count == this.valueTypes.Count, "this.valueNames.Count == this.valueTypes.Count"); 
            Debug.Assert(this.valueNames.Count == this.valueContents.Count, "this.valueNames.Count == this.valueContents.Count"); 
        }
 
        /// Writes the contents of this SyndicationContent object to the specified XmlWriter.
        /// The XmlWriter to write to.
        protected override void WriteContentsTo(XmlWriter writer)
        { 
            if (0 < this.valueNames.Count)
            { 
                writer.WriteStartElement(XmlConstants.AtomPropertiesElementName, XmlConstants.DataWebMetadataNamespace); 
                this.WritePropertyContentsTo(writer);
                writer.WriteEndElement(); 
            }
        }

        /// Writes the contents of this SyndicationContent object to the specified XmlWriter. 
        /// The XmlWriter to write to.
        private void WritePropertyContentsTo(XmlWriter writer) 
        { 
            for (int i = 0; i < this.valueNames.Count; i++)
            { 
                string propertyName = this.valueNames[i];
                string propertyTypeName = this.valueTypes[i];
                object propertyValue = this.valueContents[i];
                if (propertyValue == null) 
                {
                    PlainXmlSerializer.WriteNullValue(writer, propertyName, propertyTypeName); 
                } 
                else if (propertyValue is DictionaryContent)
                { 
                    PlainXmlSerializer.WriteStartElementWithType(writer, propertyName, propertyTypeName);
                    ((DictionaryContent)propertyValue).WritePropertyContentsTo(writer);
                    writer.WriteEndElement();
                } 
                else
                { 
                    string propertyText = (string)propertyValue; 
                    PlainXmlSerializer.WriteTextValue(writer, propertyName, propertyTypeName, propertyText);
                } 
            }
        }

        #endregion Methods. 
    }
} 

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

                        

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