XPathMessageFilterElement.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Configuration / XPathMessageFilterElement.cs / 1 / XPathMessageFilterElement.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.ServiceModel.Configuration 
{
    using System; 
    using System.Configuration; 
    using System.Globalization;
    using System.IO; 
    using System.ServiceModel.Channels;
    using System.ServiceModel.Dispatcher;
    using System.Xml;
    using System.Xml.Serialization; 
    using System.Text;
 
    public sealed partial class XPathMessageFilterElement : ConfigurationElement 
    {
        const int DefaultNodeQuota = 1000; 

        [ConfigurationProperty(ConfigurationStrings.Filter, DefaultValue = null, Options = ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsKey)]
        public XPathMessageFilter Filter
        { 
            get { return (XPathMessageFilter)base[ConfigurationStrings.Filter]; }
            set { base[ConfigurationStrings.Filter] = value; } 
        } 

        protected override void DeserializeElement(XmlReader reader, bool serializeCollectionKey) 
        {
            StringBuilder filterStringBuilder = new StringBuilder();
            string nodeQuotaStringValue = String.Empty;
 
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.ConformanceLevel = ConformanceLevel.Fragment; 
            settings.OmitXmlDeclaration = false; 

            using (XmlWriter tempWriter = XmlWriter.Create(filterStringBuilder, settings)) 
            {
                tempWriter.WriteStartElement(reader.Name);

                if (0 < reader.AttributeCount) 
                {
                    for (int i = 0; i < reader.AttributeCount; i++) 
                    { 
                        reader.MoveToAttribute(i);
                        if (reader.Name.Equals(ConfigurationStrings.NodeQuota, StringComparison.Ordinal)) 
                        {
                            nodeQuotaStringValue = reader.Value;
                        }
                        else 
                        {
                            if (reader.Name.Contains(":")) 
                            { 
                                string[] attributeName = reader.Name.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
                                tempWriter.WriteAttributeString(attributeName[0], attributeName[1], null, reader.Value); 
                            }
                            else
                            {
                                tempWriter.WriteAttributeString(reader.Name, reader.Value); 
                            }
                        } 
                    } 

                    reader.MoveToElement(); 
                }

                string filterString = reader.ReadString();
                filterString = filterString.Trim(); 
                if (String.IsNullOrEmpty(filterString))
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException( 
                        SR.GetString(SR.ConfigXPathFilterMustNotBeEmpty)));
                } 
                tempWriter.WriteString(filterString);
                tempWriter.WriteEndElement();
            }
 
            XPathMessageFilter filter = null;
 
            using (StringReader stringReader = new StringReader(filterStringBuilder.ToString())) 
            {
                using (XmlReader tempReader = XmlReader.Create(stringReader)) 
                {
                    filter = new XPathMessageFilter(tempReader);
                }
            } 

            if (null != filter) 
            { 
                if (!String.IsNullOrEmpty(nodeQuotaStringValue))
                { 
                    filter.NodeQuota = int.Parse(nodeQuotaStringValue, CultureInfo.CurrentCulture);
                }
                else
                { 
                    filter.NodeQuota = XPathMessageFilterElement.DefaultNodeQuota;
                } 
            } 

            this.Filter = filter; 
        }

        protected override bool SerializeToXmlElement(XmlWriter writer, String elementName)
        { 
            bool dataToWrite = this.Filter != null;
            if (dataToWrite && writer != null) 
            { 
                //this.Filter.WriteXPathTo(writer, null, elementName, null, true);
                writer.WriteStartElement(elementName); 
                writer.WriteAttributeString(ConfigurationStrings.NodeQuota, Filter.NodeQuota.ToString(NumberFormatInfo.CurrentInfo));

                StringBuilder filterStringBuilder = new StringBuilder();
 
                XmlWriterSettings settings = new XmlWriterSettings();
                settings.ConformanceLevel = ConformanceLevel.Fragment; 
                settings.OmitXmlDeclaration = false; 

                using (XmlWriter tempWriter = XmlWriter.Create(filterStringBuilder, settings)) 
                {
                    this.Filter.WriteXPathTo(tempWriter, null, elementName, null, true);
                }
 
                using(StringReader stringReader = new StringReader(filterStringBuilder.ToString()))
                { 
                    using (XmlReader tempReader = XmlReader.Create(stringReader)) 
                    {
                        if (tempReader.Read()) 
                        {
                            if (0 < tempReader.AttributeCount)
                            {
                                for (int i = 0; i < tempReader.AttributeCount; i++) 
                                {
                                    tempReader.MoveToAttribute(i); 
                                    writer.WriteAttributeString(tempReader.Name, tempReader.Value); 
                                }
 
                                tempReader.MoveToElement();
                            }

                            writer.WriteString(tempReader.ReadString()); 
                        }
                    } 
                } 

                writer.WriteEndElement(); 
            }
            return dataToWrite;
        }
    } 
}
 
 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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XPathMessageFilterElement.cs source code in C# .NET

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