/// <summary>
        /// Main driver function.
        /// </summary>
        /// <param name="args"></param>
        public static void Generate(string outputFileName)
        {
            //The following functions are omitted because they have counterparts in the BCL
            string[] omittedFunctions = new[]
            {
                "Sum", "Min", "Max", "Average", "Avg",
                "Count", "BigCount",
                "Trim", "RTrim", "LTrim",
                "Concat", "Length", "Substring",
                "Replace", "IndexOf", "ToUpper", "ToLower",
                "Contains", "StartsWith", "EndsWith", "Year", "Month", "Day",
                "DayOfYear", "Hour", "Minute", "Second", "Millisecond", "CurrentDateTime", "CurrentDateTimeOffset",
                "CurrentUtcDateTime",
                "BitwiseAnd", "BitwiseOr", "BitwiseXor", "BitwiseNot",
                "Round", "Abs", "Power", "NewGuid",
                "Floor", "Ceiling",
            };

            //The following functions are omitted from SqlFunctions because they already exist in EntityFunctions
            string[] omittedSqlFunctions = new[]
            {
                "STDEV", "STDEVP", "VAR", "VARP", "COUNT_BIG",
                "Left", "Right", "Reverse", "GetTotalOffsetMinutes",
                "TruncateTime", "CreateDateTime",
                "CreateDateTimeOffset", "CreateTime", "Add", "Diff",
                "Truncate", "SYSDATETIME", "SYSUTCDATETIME", "SYSDATETIMEOFFSET",
                "LEN", "LOWER", "UPPER", "NEWID",
            };

            //Generate Sql Server function stubs
            String ssdl = @"<Schema Namespace='LinqFunctionStubsGenerator' Alias='Self' Provider='SampleEntityFrameworkProvider' ProviderManifestToken='2008' xmlns='http://schemas.microsoft.com/ado/2006/04/edm/ssdl'></Schema>";

            XmlReader[] xmlReaders = new XmlReader[1];
            xmlReaders[0] = XmlReader.Create(new StringReader(ssdl));

            StoreItemCollection       storeItemCollection = new StoreItemCollection(xmlReaders);
            IEnumerable <EdmFunction> sqlFunctions        = storeItemCollection.GetItems <EdmFunction>()
                                                            .Where(f => f.NamespaceName == "SqlServer")
                                                            .Where(f => !(omittedFunctions.Concat(omittedSqlFunctions)).Contains(f.Name, StringComparer.OrdinalIgnoreCase));

            FunctionStubFileWriter sqlStubsFileWriter = new FunctionStubFileWriter(sqlFunctions, GetFunctionNamingDictionary(), GetParameterNamingDictionary());

            sqlStubsFileWriter.GenerateToFile(outputFileName, "SampleEntityFrameworkProvider", "SampleSqlFunctions", "SqlServer", true);
        }
        /// <summary>
        /// Main driver function.
        /// </summary>
        /// <param name="args"></param>
        public static void Generate(string outputFileName)
        {   
            //The following functions are omitted because they have counterparts in the BCL
            string[] omittedFunctions = new[]
            {
                "Sum", "Min", "Max", "Average", "Avg",
                "Count", "BigCount", 
                "Trim", "RTrim", "LTrim",
                "Concat", "Length", "Substring",
                "Replace", "IndexOf", "ToUpper", "ToLower",
                "Contains", "StartsWith", "EndsWith", "Year", "Month", "Day",
                "DayOfYear", "Hour", "Minute", "Second", "Millisecond", "CurrentDateTime", "CurrentDateTimeOffset",
                "CurrentUtcDateTime",
                "BitwiseAnd", "BitwiseOr", "BitwiseXor", "BitwiseNot",
                "Round", "Abs", "Power", "NewGuid",
                "Floor", "Ceiling",
            };

            //The following functions are omitted from SqlFunctions because they already exist in EntityFunctions
            string[] omittedSqlFunctions = new[]
            {
                "STDEV", "STDEVP", "VAR", "VARP", "COUNT_BIG",
                "Left", "Right", "Reverse", "GetTotalOffsetMinutes", 
                "TruncateTime", "CreateDateTime",
                "CreateDateTimeOffset", "CreateTime", "Add", "Diff",
                "Truncate", "SYSDATETIME", "SYSUTCDATETIME", "SYSDATETIMEOFFSET",
                "LEN", "LOWER", "UPPER", "NEWID", 
            };
                
            //Generate Sql Server function stubs
            String ssdl = @"<Schema Namespace='LinqFunctionStubsGenerator' Alias='Self' Provider='SampleEntityFrameworkProvider' ProviderManifestToken='2008' xmlns='http://schemas.microsoft.com/ado/2006/04/edm/ssdl'></Schema>";
            XmlReader[] xmlReaders = new XmlReader[1];
            xmlReaders[0] = XmlReader.Create(new StringReader(ssdl));

            StoreItemCollection storeItemCollection = new StoreItemCollection(xmlReaders);
            IEnumerable<EdmFunction> sqlFunctions = storeItemCollection.GetItems<EdmFunction>()
                .Where(f => f.NamespaceName == "SqlServer")
                .Where(f => !(omittedFunctions.Concat(omittedSqlFunctions)).Contains(f.Name, StringComparer.OrdinalIgnoreCase));

            FunctionStubFileWriter sqlStubsFileWriter = new FunctionStubFileWriter(sqlFunctions, GetFunctionNamingDictionary(), GetParameterNamingDictionary());
            sqlStubsFileWriter.GenerateToFile(outputFileName, "SampleEntityFrameworkProvider", "SampleSqlFunctions", "SqlServer", true);
        }