BP Extension Name Check

ExtensionNameCheck.cs

namespace MVP.AX.BestPracticeCheckExtensions
{
    using System;
    using System.Text.RegularExpressions;
    using Microsoft.Dynamics.AX.Framework.BestPractices.Extensions;
    using Microsoft.Dynamics.AX.Metadata.Upgrade.Common;
    using System.Runtime.Serialization;

    [BestPracticeRule(
        InvalidExtensionnameDiagnosticItem.DiagnosticMoniker,
        typeof(Messages),
        InvalidExtensionnameDiagnosticItem.DiagnosticMoniker + "Description",
        BestPracticeCheckerTargets.TableExtension),
     RuleAttributes("MVPProductPrefix.xml")]
    public class TableExtensionNameCheck : MetadataDetectorWithXMLDataFile<Microsoft.Dynamics.AX.Metadata.MetaModel.AxTableExtension, EGProductPrefix>
    {
        /// <summary>
        /// This method is called with the top level table extensions - everything else is ignored. 
        /// </summary>
        /// <param name="tableExtension">A tableExtension instance to check for BP violations.</param>
        protected override void RunChecksOn(Microsoft.Dynamics.AX.Metadata.MetaModel.AxTableExtension tableExtension)
        {
            visitTableName(tableExtension.Name);
        }
        
        private void visitTableName(string tableName)
        {
            string requiredPrefix = base.RulePatterns.Prefix;
            string dotExtensionPattern = @"\w+." + requiredPrefix + "Extension";
            var match = Regex.IsMatch(tableName, dotExtensionPattern);

            if (!match)
            {
                // Didn't fint the correct pattern in the table extension name
                // Build a diagnostic ...
                InvalidExtensionnameDiagnosticItem diagnostic = new InvalidExtensionnameDiagnosticItem(
                    ModelElementPathBuilder.CreatePathForTable(tableName),
                    "TableExtension",
                    null,
                    tableName);
                
                // ... and report the error.
                this.ExtensionContext.AddErrorMessage(diagnostic);
            }
        }
    }

    [Serializable, DataContract(Name = "MVPProductPrefix", Namespace = "")]
    public class MVPProductPrefix : RulePatternsBase
    {
        /// <summary>
        /// This class is the data contract for the XML file  
        /// </summary>
        
        // Fields
        [DataMember(Name="Prefix")]
        public string Prefix;
    }
}