System Log in C#

Hello. I need to make an application for logging the other application events including operations and variables with there before and after values. The application to be logged is codded in Java. The application "LOG" will be in C#. To bind 2 applications I would like to use Web Services with Ado.Net DataBase. The Java application will generate an Output Stream in XML format. The C# application will read the Buffered Stream , extract data and save it into DataBase. The question is: How do I proceed? What technologies or methods to use? Do I need sockets? Thank you.