using System;   

using System.Text;

using FluentValidator.Interface;

using FluentValidator.Validator;

​

// Interfaces used for building the fluent validator   

namespace FluentValidator.Interface

{

    /// <summary>

    /// Prepare document for validation

    /// </summary>

    public interface IDocument

    {

        public IValidateSyntax Create();

    }

    /// <summary>

    /// RuUn a syntax check on the document

    /// </summary>

    public interface IValidateSyntax

    {

        public IValidateStructure CheckSyntax();

    }

    /// <summary>

    /// Validate the structure of the document using a schema

    /// </summary>

    public interface IValidateStructure

    {

        public IValidated CheckStructure();

    }

    /// <summary>

    /// Document is structural and semantic valid

    /// </summary>

    public interface IValidated

    {

        public IValidationResult CheckContent();

        public IValidationResult TransformContent();

    }

    /// <summary>

    /// Return validation result

    /// </summary>

    public interface IValidationResult

    {

        public string GetMessage();

    }

}

​

​

namespace FluentValidator.Validator

{

    /// <summary>

    /// Concrete implementation of the fluent validator

    /// </summary>

    /// <seealso cref="FluentValidator.Interface.IValidateSyntax" />

    /// <seealso cref="FluentValidator.Interface.IValidateStructure" />

    /// <seealso cref="FluentValidator.Interface.IValidated" />

    /// <seealso cref="FluentValidator.Interface.IValidationResult" />

    /// <seealso cref="FluentValidator.Interface.IDocument" />

    public class ValidateXML : IValidateSyntax, IValidateStructure, IValidated, IValidationResult, IDocument

    {

        private StringBuilder message = new StringBuilder();

        /// <summary>

        /// Creates the instance.

        /// </summary>

        /// <returns></returns>

        public IValidateSyntax Create()

        {

            return new ValidateXML();

        }

        /// <summary>

        /// Checks the syntax.

        /// </summary>

        /// <returns>IValidateStructure</returns>

        public IValidateStructure CheckSyntax()

        {

            message.Append("Syntax validated\r\n");

            return this;

        }

        /// <summary>

        /// Checks the structure.

        /// </summary>

        /// <returns>IValidated</returns>

        public IValidated CheckStructure()

        {

            message.Append("Structure validated\r\n");

            return this;

        }

        /// <summary>

        /// Checks the content.

        /// </summary>

        /// <returns>IValidationResult</returns>

        public IValidationResult CheckContent()

        {

            message.Append("Content validated\r\n");

            return this;

        }

        /// <summary>

        /// Transforms the content.

        /// </summary>

        /// <returns>IValidationResult</returns>

        public IValidationResult TransformContent()

        {

            message.Append("Stylesheet applied\r\n");

            return this;

        }

        /// <summary>

        /// Gets the message.

        /// </summary>

        /// <returns>string</returns>

        public string GetMessage()

        {

            return message.ToString();

        }

    }

}

​

​

namespace FluentValidator

{

    internal class Program

    {

        static void Main(string[] args)

        {

            ValidateXML validate = new ValidateXML();

            Console.WriteLine("Validate XML file:");

            Console.WriteLine("------------------");

            Console.WriteLine(

                validate.Create()

                    .CheckSyntax()

                    .CheckStructure()

                    .CheckContent()

                    .GetMessage()

                );

            Console.WriteLine("");

            Console.WriteLine("Validate and transform XML file:");

            Console.WriteLine("--------------------------------");

            Console.WriteLine(

                validate.Create()

                    .CheckSyntax()

                    .CheckStructure()

                    .TransformContent()

                    .GetMessage()

                );

            Console.ReadKey();

        }

    }

}

​

​