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Google Guava MultiMaps

Guava? This is the first in a series of posts where I’ll be attempting to explain and explore Google’s awesome Guava java library. I first came across Guava whilst searching ...
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Calculating A Co-Occurrence Matrix with Hadoop

This post continues with our series of implementing the MapReduce algorithms found in the Data-Intensive Text Processing with MapReduce book. This time we will be creating a word co-occurrence ...
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Forcing Tomcat to log through SLF4J/Logback

So you have your executable web application in JAR with bundled Tomcat (make sure to read that one first). However there are these annoying Tomcat logs at the beginning, independent ...
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Event streaming with MongoDB

MongoDB is a really great “NoSQL” database, with a very wide range of applications. In one project that we are developing at SoftwareMill, we used it as a replicated event storage, ...
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How cool is integration testing with Spring and Hibernate

I am guilty of not writing integration testing (At least for database related transactions) up until now. So in order to eradicate the guilt i read up on how one can achieve this with ...
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SQL Injection in Java Application

In this post we will discuss what is an SQL Injection attack. and how its may affect any web application its use the back end database. Here i concentrate on java web application. ...
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Database Encryption Using JPA Listeners

I recently had to add database encryption to a few fields and discovered a lot of bad advice out there. Architectural Issues The biggest problem is architectural. If your persistence ...
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Ten Things You Can Do With Spring Security

One You can specify the authorisation provider of your choice in your Spring XML config file. You do this by configuring an authentication-manager as defined in Spring’s http://www.springframework.org/schema/security/spring-security-3.1.xsd ...
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Standalone web application with executable Tomcat

When it comes to deploying your application, simplicity is the biggest advantage. You’ll understand that especially when project evolves and needs some changes in the environment. ...
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JSON-Schema generation in Jersey

So in my previous post I talked about a proposal to allow the use of JSON-Schema in a WADL, this post looks at how to get this working with a recently build of Jersey. You are going ...
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