BizTalk 新增/修改/删除 XmlDocument 名字空间的高效方法

新增一个名字空间

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public class AddXmlNamespaceStream : XmlTranslatorStream

{

    private String namespace_;

    private int level_ = 0; // hierarchy level

 

    public AddXmlNamespaceStream(Stream stream, String @namespace)

        : base(XmlReader.Create(stream))

    {

        namespace_ = @namespace;

    }

 

    #region XmlTranslatorStream Overrides

 

    protected override void TranslateStartElement(string prefix, string localName, string nsURI)

    {

        if (level_++ != 0)

        {

            base.TranslateStartElement(prefix, localName, nsURI);

            return;

        }

 

        if (String.IsNullOrEmpty(nsURI))

        {

            nsURI = namespace_;

            if (String.IsNullOrEmpty(prefix))

                prefix = "__bts_ns0__";

        }

 

        base.TranslateStartElement(prefix, localName, nsURI);

    }

 

    protected override void TranslateEndElement(bool full)

    {

        if (level_-- != 0)

        {

            base.TranslateEndElement(full);

            return;

        }

 

        base.TranslateEndElement(full);

    }

 

    #endregion

}

　　删除名字空间

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public class XmlNamespaceRemoverStream : XmlTranslatorStream

{

    protected override void TranslateStartElement(

        string prefix, string localName, string nsURI)

    {

        base.TranslateStartElement(null, localName, null);

    }

 

    protected override void TranslateAttribute()

    {

        if (this.m_reader.Prefix != "xmlns")

            base.TranslateAttribute();

    }

 

    public XmlNamespaceRemoverStream(Stream input)

        : base(new XmlTextReader(input), Encoding.Default)

    { }

}

　　修改根节点 名字空间

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public class XmlNamespaceModifierStream : XmlTranslatorStream

    {

        private const string CIN_DOCTYPE = "catalogueItemNotification";

        private const string CPN_DOCTYPE = "priceSynchronisationDocument";

        private const string ROOT_GS1_ELEMENT = "StandardBusinessDocument";

        private const string NS_PREFIX = "http://www.test.com";

 

        private string _newNamespaceVersion;

        private string _documentType;

 

 

 

 

        protected override void TranslateStartElement(string prefix, string localName, string nsURI)

        {

            string newNSUri = string.Empty;

            bool isElementFoundWithNamespace = false;

            bool isFirstElement = false;

 

 

            if (!string.IsNullOrEmpty(prefix) && !isFirstElement)

            {

                //element found with prefix. Modify namespace with new value and append passed namespace version

                newNSUri = NS_PREFIX + _newNamespaceVersion;

                isElementFoundWithNamespace = true;

 

                if (localName.Equals(ROOT_GS1_ELEMENT))

                    isFirstElement = true;

            }

 

 

            if (isElementFoundWithNamespace & isFirstElement)

            {

                //replace with new namespace

                Debug.WriteLine(string.Format("[BTS.Utilities.CustomPipelines.NamespaceModifier.XmlNamespaceModifierStream]Replace namespace with {0}", nsURI + newNSUri));

 

                if (_documentType.Equals(CIN_DOCTYPE))

                    localName = localName + "Catalogue";

                if (_documentType.Equals(CPN_DOCTYPE))

                    localName = localName + "Price";

 

                base.TranslateStartElement(null, localName, newNSUri);

                //base.TranslateStartElement(prefix, localName, newNSUri);

            }

            else

            {

                base.TranslateStartElement(null, localName, null);

                //base.TranslateStartElement(prefix, localName, newNSUri);

            }

 

        }

 

        protected override void TranslateAttribute()

        {

            if (this.m_reader.Prefix != "xmlns" && this.m_reader.Name != "xmlns")

                base.TranslateAttribute();

        }

 

 

 

        public XmlNamespaceModifierStream(Stream input, string namespaceVersion, string documentType)

            : base(new XmlTextReader(input), Encoding.Default)

        {

            Debug.WriteLine("[BTS.Utilities.CustomPipelines.NamespaceModifier.XmlNamespaceModifierStream]Entered method");

            _newNamespaceVersion = namespaceVersion.Trim();

            _documentType = documentType.Trim();

            Debug.WriteLine("[BTS.Utilities.CustomPipelines.NamespaceModifier.XmlNamespaceModifierStream]Exit method");

        }

    }