CSharpClassToJdlEntity.linq

void Main()
{
	var files = Directory.EnumerateFiles(@"enter-path-to-files-here", "*.cs", SearchOption.TopDirectoryOnly);
	
	foreach (var file in files)
	{
    // hardcoding is bad
		if (file.Contains("Enum.cs")) continue;
		ParseFile(File.ReadAllLines(file));
	}
}

// Define other methods and classes here
void ParseFile(string[] fileLines)
{
	//Array.ForEach(fileLines, x => x = x.Replace(" { get; set; }", string.Empty));

	var list = fileLines.ToList().Select(s => s.Replace(" { get; set; }", string.Empty)).ToList();
	list = list.ToList().Select(s => s.Replace("public ", string.Empty)).ToList();
	list = list.ToList().Select(s => s.Replace(" : IObjectWithState", string.Empty)).ToList();
		
	var keepList = new List<string>();
	
	foreach (var line in list)
	{
		string[] ignoreStrings = { "///", "//", "using", "namespace", "    {", "        }", "[Required]", "new", "{", "}", "(", ")", "this.", "return", "        ObjectState State", "#region", "#endregion" };
		if (ignoreStrings.Any(line.Contains)) continue;
		keepList.Add(line);
	}
	
	//list = list.ToList().Select(s => s.Replace("class ", string.Empty) + " {").ToList();
	
	foreach (var line in keepList)
	{
		var entityLine = string.Empty;
		
		if (line.Contains("class ")) entityLine = "} " + line.Replace("class ", "entity ") + " {";
		if (line.Contains("        ")) entityLine = line;
		if (entityLine.Contains("        string ")) entityLine = entityLine.Replace("        string ", string.Empty) + " String";
		if (entityLine.Contains("        DateTime ")) entityLine = entityLine.Replace("        DateTime ", string.Empty) + " DateTime";
		if (entityLine.Contains("        int ")) entityLine = entityLine.Replace("        int ", string.Empty) + " Long";
		
    // hardcoding is bad
    if (entityLine.Contains("        virtual Message Message")) entityLine = entityLine.Replace("        virtual Message Message", "Message Message");
		
		if (entityLine.Contains("        virtual ")) 
		{
			var virtualLine = entityLine.Replace("        virtual ", string.Empty);
			string[] parts = virtualLine.Split(' ');
			entityLine = parts[1].Trim() + " " + parts[0].Trim();
		}
		
		entityLine = entityLine.Replace("}     ", "}\n\n");
		
		if (entityLine.Trim().Length == 0) continue;
		
		//if (counter == 0 && entityLine.Contains("{")) entityLine = entityLine.Replace("}", string.Empty);
		
		entityLine.Dump();
	}	
}