XML-RPC

Access Attributes

Posted on by coder 
   
 



using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;

class Program {
    static void Main(string[] args) {

        XmlDocument documentation = new XmlDocument();
        documentation.Load("DocumentedClasses.xml");
        XmlNodeList memberNodes = documentation.SelectNodes("//member");

        List<XmlNode> typeNodes = new List<XmlNode>();
        foreach (XmlNode node in memberNodes) {
            if (node.Attributes["name"].Value.StartsWith("T")) {
                typeNodes.Add(node);
            }
        }
        foreach (XmlNode node in typeNodes) {
            Console.WriteLine("- {0}", node.Attributes["name"].Value.Substring(2));
        }
    }
}

Reading from an XML file.

Posted on by coder 
   
 

using System;
using System.Xml;

public class MainClass {
    public static void Main(string[] args) {
        XmlTextReader reader = new XmlTextReader(args[0]);

        while (reader.Read()) {
            switch (reader.NodeType) {
                case XmlNodeType.Element: // The node is an Element
                    Console.WriteLine("Element: " + reader.Name);
                    while (reader.MoveToNextAttribute()) // Read attributes
                        Console.WriteLine("  Attribute: [" +
                         reader.Name + "] = &#039;"
                           + reader.Value + "&#039;");
                    break;
                case XmlNodeType.DocumentType: // The node is a DocumentType
                    Console.WriteLine("Document: " + reader.Value);
                    break;
                case XmlNodeType.Comment:
                    Console.WriteLine("Comment: " + reader.Value);
                    break;
            }
        }

        reader.Close();
    }
}

Writing XML with the XmlWriter Class

Posted on by coder 


   


using System;
using System.IO;
using System.Xml;
   
class MainClass
{
    static public void Main()
    {
        XmlTextWriter XmlWriter = new XmlTextWriter(Console.Out);
        
        XmlWriter.WriteStartDocument();
        XmlWriter.WriteComment("This is the comments.");
        XmlWriter.WriteStartElement("BOOK");
        XmlWriter.WriteElementString("TITLE", "this is the title.");
        XmlWriter.WriteElementString("AUTHOR", "I am the author.");
        XmlWriter.WriteElementString("PUBLISHER", "who is the publisher");
        XmlWriter.WriteEndElement();
        XmlWriter.WriteEndDocument();
    }
}

Convert an XmlNode to an object

Posted on by coder 
   
 
#region License and Copyright
/*
 * Dotnet Commons Xml
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 */
#endregion

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;

//using Dotnet.Commons.Reflection;

namespace Dotnet.Commons.Xml
{
  
  ///  
  /// <summary>
  /// This utility class contains wrapper functions that help to ease the handling and 
    /// manipulation of Xml documents, such as adding an element, adding an attribute
    /// to an element, copying and cloning of nodes, etc.
  ///
  /// </summary>
  /// 
    
  public abstract class XmlUtils
  {
    /// <summary>
    /// Convert an XmlNode to an object
    /// </summary>
    /// <param name="node"></param>
    /// <param name="targetObj"></param>
    /// <returns></returns>
    /// -----------------------------------------------------------
    public static object FromXmlNodeWithAttributes(XmlNode node, object targetObj)
    {
      if (node.Attributes.Count == 0)
        return targetObj;

      foreach( XmlAttribute attr in node.Attributes)
      {
        string propertyName = attr.Name;
        string propertyValue = attr.Value;

                PropertyInfo pi = targetObj.GetType().GetProperty(propertyName);

                if (pi != null)
                    pi.SetValue(targetObj, Convert.ChangeType(propertyValue, pi.PropertyType), null);

                else // search if such field exists
                {
                    FieldInfo fi = targetObj.GetType().GetField(propertyName);

                    if (fi != null)
                        fi.SetValue(targetObj, Convert.ChangeType(propertyValue, fi.FieldType));                        
                }
      }

      return targetObj;
    }

    }
}

Alphabetical sorting of the XmlNodes

Posted on by coder

#region License and Copyright
/*
* Dotnet Commons Xml
*
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place,
* Suite 330,
* Boston,
* MA 02111-1307
* USA
*
*/
#endregion

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;

//using Dotnet.Commons.Reflection;

namespace Dotnet.Commons.Xml
{

///
///

/// This utility class contains wrapper functions that help to ease the handling and
/// manipulation of Xml documents, such as adding an element, adding an attribute
/// to an element, copying and cloning of nodes, etc.
///
///

///

public abstract class XmlUtils
{
// #################################################################### //
// These code is derived from Mainsoft.com //
// http://www.koders.com/csharp/fid439BB5BEF93D1AEFAF0B9206236AB0ECE49BC229.aspx
// #################################################################### //

/// ———————————————————–
///

/// Alphabetical sorting of the XmlNodes
/// and their attributes in the .
///

/// to be sorted /// ———————————————————–
public static void SortXml(XmlDocument document)
{
SortXml(document.DocumentElement);
}

/// ———————————————————–
///

/// Inplace pre-order recursive alphabetical sorting of the XmlNodes child
/// elements and .
///

/// The root to be sorted. /// ———————————————————–
public static void SortXml(XmlNode rootNode)
{
SortAttributes(rootNode.Attributes);
SortElements(rootNode);
foreach (XmlNode childNode in rootNode.ChildNodes)
{
SortXml(childNode);
}
}

/// ———————————————————–
///

/// Sorts an attributes collection alphabetically.
/// It uses the bubble sort algorithm.
///

/// The attribute collection to be sorted. /// ———————————————————–
public static void SortAttributes(XmlAttributeCollection attribCol)
{
if (attribCol == null)
return;

bool hasChanged = true;
while (hasChanged)
{
hasChanged = false;
for (int i = 1; i < attribCol.Count; i++) { if (String.Compare(attribCol[i].Name, attribCol[i-1].Name, true) < 0) { //Replace attribCol.InsertBefore(attribCol[i], attribCol[i - 1]); hasChanged = true; } } } } /// ----------------------------------------------------------- ///

/// Sorts a alphabetically, by the names of the elements.
/// It uses the bubble sort algorithm.
///

/// The node in which its childNodes are to be sorted. /// ———————————————————–
public static void SortElements(XmlNode node)
{
bool changed = true;
while (changed)
{
changed = false;
for (int i = 1; i < node.ChildNodes.Count; i++) { if (String.Compare(node.ChildNodes[i].Name, node.ChildNodes[i-1].Name, true) < 0) { //Replace: node.InsertBefore(node.ChildNodes[i], node.ChildNodes[i-1]); changed = true; } } } } } } [/csharp]

Set the value to the Element

Posted on by coder 
   
 
#region License and Copyright
/*
 * Dotnet Commons Xml
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 */
#endregion

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;

//using Dotnet.Commons.Reflection;

namespace Dotnet.Commons.Xml
{
  
  ///  
  /// <summary>
  /// This utility class contains wrapper functions that help to ease the handling and 
    /// manipulation of Xml documents, such as adding an element, adding an attribute
    /// to an element, copying and cloning of nodes, etc.
  ///
  /// </summary>
  /// 
    
  public abstract class XmlUtils
  {
    /// -----------------------------------------------------------
    /// <summary>
    /// Set the value to the Element
    /// </summary>
    /// <param name="node">the node to set the value </param>
    /// <param name="nodeValue">Value to set</param>
    /// <exception cref="XmlException">
    ///    Thrown if XmlNode is not an element or node is 
    ///    not a text node (no child nodes)
    ///  </exception>
    /// -----------------------------------------------------------
    public static void SetNodeValue( XmlNode node, object nodeValue )
    {  
      if (node == null)
        throw new ArgumentNullException("node");

      if (node.NodeType != XmlNodeType.Element)
        throw new XmlException("Node is not an element.");

      if (node.ChildNodes.Count > 0)
        throw new XmlException("Node is not a text node as it has child nodes.");

      node.AppendChild(node.OwnerDocument.CreateTextNode(nodeValue.ToString()));
    }

    /// ------------------------------------------------------------------
    /// <summary>
    /// Set the value to a node
    /// </summary>
    /// <param name="parentNode">parentNode to start search from</param>
    /// <param name="xpath">XPath to the child node</param>
    /// <param name="nodeValue">the new value to set to</param>
    /// <exception cref="ArgumentNullException">Thrown if parentNode is null</exception>
    /// <exception cref="ArgumentException">Thrown if no text node is found at the xpath provided.</exception>
    /// <exception cref="XmlException">Thrown if node to set the value is not a text node (ie. no child nodes)</exception>
    /// ------------------------------------------------------------------
    public static void SetNodeValue(XmlNode parentNode, 
                    string xpath, 
                    object nodeValue)
    {
      if (parentNode == null)
        throw new ArgumentNullException("parentNode");

      XmlNode childNode = parentNode.SelectSingleNode(xpath);
      
      if(childNode == null)
        throw new ArgumentException(String.Format("No node is not found at the path specified &#039;{0}&#039;", xpath), "xpath");
      
      if (childNode.ChildNodes.Count > 0)
        throw new XmlException("Child node is not a text node as it has child nodes.");

      childNode.InnerText = nodeValue.ToString();
      
    }

    /// -----------------------------------------------------------
    /// <summary>
    /// Set a blog of binary data encoded with Base64 to an XML element.
    /// </summary>
    /// <param name="node">the node to set the blog of data</param>
    /// <param name="byteArray">an array of bytes containing the actual data</param>
    /// <exception cref="XmlException">Thrown if XmlNode is not an element or 
    ///    node is not a text node (no child nodes)</exception>
    /// -----------------------------------------------------------
    public static void SetNodeBase64BinaryValue( XmlNode node, byte[] byteArray )
    {
      if (node.NodeType != XmlNodeType.Element)
        throw new XmlException("Node is not an element.");

      if (node.ChildNodes.Count > 0)
        throw new XmlException("Node is not a text node as it has child nodes.");

      // Convet byte array into Base64 string
      string encodedData = Convert.ToBase64String(byteArray);
      
      node.AppendChild(node.OwnerDocument.CreateTextNode(encodedData));
    }


    /// -----------------------------------------------------------
    /// <summary>
    /// Encode a value to Base64 and set it to the node.
    /// </summary>
    /// <param name="node">the node to set the value</param>
    /// <param name="value">value to set to the node</param>
    /// <exception cref="XmlException">Thrown if XmlNode is not an element 
    /// or node is not a text node (no child nodes)</exception>
    /// -----------------------------------------------------------
    public static void SetNodeBase64EncodedValue( XmlNode node, object value)
    {
      if (value is byte[])
        SetNodeBase64BinaryValue(node, (byte[])value);

      if (node.NodeType != XmlNodeType.Element)
        throw new XmlException("Node is not an element.");

      if (node.ChildNodes.Count > 0)
        throw new XmlException("Node is not a text node as it has child nodes.");

      // Convet byte array into Base64 string
      ASCIIEncoding encoding = new ASCIIEncoding();
      byte[] bytes = encoding.GetBytes(value.ToString());

      SetNodeBase64BinaryValue(node, bytes);      
    }
    }
}

Get the Xml Text node value

Posted on by coder 
   
 
#region License and Copyright
/*
 * Dotnet Commons Xml
 *
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this library; if not, write to the 
 * Free Software Foundation, Inc., 
 * 59 Temple Place, 
 * Suite 330, 
 * Boston, 
 * MA 02111-1307 
 * USA 
 * 
 */
#endregion

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.Serialization;

//using Dotnet.Commons.Reflection;

namespace Dotnet.Commons.Xml
{
  
  ///  
  /// <summary>
  /// This utility class contains wrapper functions that help to ease the handling and 
    /// manipulation of Xml documents, such as adding an element, adding an attribute
    /// to an element, copying and cloning of nodes, etc.
  ///
  /// </summary>
  /// 
    
  public abstract class XmlUtils
  {
    /// -------------------------------------------------------------------
    /// <summary>
    /// Get the Xml Text node value
    /// </summary>
    /// <param name="parentNode"></param>
    /// <param name="xPath"></param>
    /// <returns></returns>
    /// -------------------------------------------------------------------
    public static string GetTextNodeValueFromXPath(XmlNode parentNode, 
                             string xPath)
    {
      XmlNode node = parentNode.SelectSingleNode(xPath);

      if (node == null)
        return String.Empty;

      if (node.NodeType == XmlNodeType.Text || node.NodeType== XmlNodeType.Attribute)
        return node.Value;

      if (node.NodeType == XmlNodeType.Element)
      {        
        try
        {  
          if (node.FirstChild.NodeType == XmlNodeType.Text)
            return node.InnerText;
        }
        catch 
        { //Do Nothing 
        }
      }
      return String.Empty;
    }
    }
}