Caffeinated Wisdom

One of the nice things about the .NET web environment is the dead easy way to implement Single Sign On in your web apps through Active Directory authentication. In the Java world there are multiple alternatives to use Windows’ Single Sign On with Java based web apps. One of those alternatives is Waffle . Waffle allows your Java web app to authenticate against Active Directory groups (and users). The only caveat is that your web server needs to be running in Windows, which kind of makes sense. In this article, you will learn the steps required to have your OpenXava web application use Waffle to authenticate your Windows users. The first step is to download Waffle from their site and then copy the JAR files outlined in https://github.com/dblock/waffle/blob/master/Docs/tomcat/TomcatSingleSignOnValve.md to the OpenXava’s tomcat server. In your OpenXava project, create servlets.xml in the Web-inf, containing the following: <!-- the role name (the domain gorup) must be e...

Data Science for Business is a book that makes a phenomenal job teaching the fundamental concepts of Data Science (a.k.a. Data Analysis and Data Mining). Foster Provost and Tom Fawcett explain in plain English, clear examples and beginner-level math the processes surrounding Data Science and the basics of its algorithms. The authors go over the various steps of the CRISP method using situations found in the real world such as Customer Churn and Online Advertising. The most common data analysis models are reviewed and explained in detail such as Clustering, Decision Trees and Support Vector Machines. Extensive explanation is given to the difference between supervised and unsupervised methods. Even if you use software tools that create those models, this book will help you understand how to use/test them correctly and how to avoid over-fitting. Multiple examples are given in each chapter and most of the math is visually aided with graphs. The authors explain step by step any eq...

How to make Micorsoft SQL Server's integrated security (SSPI) work in Spoon: Download the MS SQL JDBC sql drivers Copy enu\auth\x64\sqljdbc_auth.dll to {spoon installtion folder}\libswt\win64 Copy enu\auth\x64\sqljdbc_auth.dll  to {spoon installtion folder}\libswt\win32 Copy C:\sqljdbc_4.0\enu\sqljdbc4.jar to {spoon installtion folder}\libext\JDBC Open Spoon When creating the data source, make sure to check "Use integrated authentication" Please note that you are copying the 64 bit version of sqljdbc_auth.dll to both \libswt\win64 and \libswt\win32 if you have a 64 bit processor.