Acceleratio.SPDG.Generator.SampleData.GetRandomName C# (CSharp) Method

        public static string GetRandomName(IList<string> primaryCollection, IList<string> secondaryCollection, IList<string> tertiaryCollection, ref int attempt, out string baseName)
        {
            string retVal = "";
            attempt++;
            baseName = "";

            if ((secondaryCollection == null && tertiaryCollection == null) || attempt < 5)
            {
                baseName = GetSampleValueRandom(primaryCollection);
                retVal = baseName;
            }
            else if (tertiaryCollection == null)
            {
                baseName = GetSampleValueRandom(primaryCollection);
                retVal = string.Format("{0} {1}", baseName, GetSampleValueRandom(secondaryCollection));
            }
            else
            {
                if (attempt < 10)
                {
                    baseName = GetSampleValueRandom(primaryCollection);
                    retVal = string.Format("{0} {1}", baseName, GetSampleValueRandom(secondaryCollection));
                }
                else if (attempt < 20)
                {
                    baseName = GetSampleValueRandom(primaryCollection);
                    retVal = string.Format("{0} {1}", baseName, GetSampleValueRandom(tertiaryCollection));
                }
                else
                {
                    baseName = GetSampleValueRandom(primaryCollection);
                    retVal = string.Format("{0} {1} {2}", baseName, GetSampleValueRandom(secondaryCollection), GetSampleValueRandom(tertiaryCollection));
                }
            }

            if (attempt > 40)
            {
                retVal += string.Format("{0} {1}", retVal, _randomGen.Next(10000).ToString());
            }

            return retVal;
        }