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Integrating WCF Services into UDDI based enterprise SOA

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27 Jan 2009CPOL18 min read 69.3K   749   42  
Shows how to integrate WCF services into a UDDI based SOA. This includes the discovery of WCF services at runtime and the runtime configuration of the client.
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Reflection;
using System.ServiceModel.Channels;
using System.ServiceModel.Configuration;

namespace DynamicWCFFactory
{
    /// <summary>
    /// Provides methods to discover and configure various aspects of a WCF client.
    /// </summary>
    public class BindingConfigurationHelper
    {
        #region Members

        /// <summary>
        /// The configuration from the application configuration file.
        /// </summary>
        private System.Configuration.Configuration _appConfig = null;

        /// <summary>
        /// The list of key-value pair, property name and property value, used to configure a <see cref="Binding"/>.
        /// </summary>
        public class BindingProperties : Dictionary<string, IConvertible>
        {
        }

        #endregion

        #region Private methods

        /// <summary>
        /// Sets the properties of the binding by applying the properties from the property list.
        /// </summary>
        /// <param name="binding">The <see cref="System.ServiceModel.Channels.Binding"/> to configure.</param>
        /// <param name="properties">The list of properties to apply</param>
        private void SetBindingProperties(Binding binding, BindingProperties properties)
        {
            CustomBinding customBinding = binding as CustomBinding;

            if (customBinding != null)
            {
                foreach (BindingElement element in customBinding.Elements)
                {
                    Type elementType = element.GetType();
                    foreach (KeyValuePair<string, IConvertible> _keyValue in properties)
                    {
                        // Retrieve the PropertyInfo for the specified property.
                        PropertyInfo _propertyInfo = elementType.GetProperty(_keyValue.Key, BindingFlags.Instance | BindingFlags.Public);
                        if (null != _propertyInfo)
                        {
                            try
                            {
                                _propertyInfo.SetValue(binding, _keyValue.Value, null);
                            }
                            catch
                            {
                                // HACK: the catch block is intentionally doing nothing to
                                // allow the loop to continue processing the property list.
                            }
                        }
                    }
                }
            }

            // Retrieve the type of the binding.
            Type _bindingType = binding.GetType();

            // Process the collection of properties to set.
            foreach (KeyValuePair<string, IConvertible> _keyValue in properties)
            {
                // Retrieve the PropertyInfo for the specified property.
                PropertyInfo _propertyInfo = _bindingType.GetProperty(_keyValue.Key, BindingFlags.Instance | BindingFlags.Public);
                if (null != _propertyInfo)
                {
                    try
                    {
                        _propertyInfo.SetValue(binding, _keyValue.Value, null);
                    }
                    catch
                    {
                        // HACK: the catch block is intentionally doing nothing to
                        // allow the loop to continue processing the property list.
                    }
                }
            }
        }

        
        #endregion

        #region Public methods

        /// <summary>
        /// Configures the given <see cref="System.ServiceModel.Channels.Binding"/> using the key-value pairs from the <see cref="BindingProperties"/> list.
        /// </summary>
        /// <param name="binding">The  <see cref="System.ServiceModel.Channels.Binding"/> to configure.</param>
        /// <param name="properties">The key-value pair of properties used to configure the new <see cref="System.ServiceModel.Channels.Binding"/>.</param>
        public void ConfigureClientBinding(Binding binding, BindingProperties properties)
        {
            // Set the properties of the new binding.
            SetBindingProperties(binding, properties);
        }


        #endregion
    }
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Architect
Germany Germany
being IT-Engineer since 1995 I am freelancing since then. From networks to programming, from system administration to DBA, from AIX to Windows I offer a wide range of IT-Skill's without considering me the ultimate expert in each area.
I try to avoid complexity wherever I can and so my philosophy is to strictly follow KISS principles.

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