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Apache Mahout: Build a spam filter server

Something quite interesting has happened with Lucene. It started as a library, then its developers began adding new projects based on it. They developed another open source project that would add crawling features (among others features) to Lucene. Nutch is in fact a full featured web serach engine that anyone can use or modify. Inspired in some famous papers from ...

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Twitter API on your Java Application

Ever wonder of attaching your tweets to your Java Applications? I searching for the best API out there for this and lucky for me, I found it! http://twitter4j.org/ A Simple How To: The first thing we need to do is to create an application within your twitter account, grant it access and generate authentication tokens (although, the consumer tokens will ...

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Building Scalable Enterprise Systems

Successful enterprise are all about business agility and able to introduce new products and services in the market. All this business agility coupled with reduced IT overheads means, the enterprise need to find better ways to improve and transform their enterprise systems. The advent of Cloud, Social, Mobile and Consumerization of IT means enterprises applications need to be adapt to ...

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JMS Development Fundamentals using Apache ActiveMQ

It was last year when I had my hands on trying out JMS. The Idea and concept behind baffled me a little but as soon as I knew what It is for, I quickly grasp it. In this post, I will show the fundamentals of developing a simple producer/consumer in Java using Apache ActiveMQ as its backend. Let’s first start ...

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Integrating Spring Into Legacy Applications

spring-interview-questions-answers

One of the things that all Spring developers like to do is to shoehorn Spring into any application they work on – it’s one of my guilty pleasures in life: you see some code, think it’s rubbish because it contains several well known anti-patterns and then think how cool it would be if this app was a Spring app. When ...

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JavaFX 2.0 Introduction by Example book

I recently finished writing a book on the new release of the JavaFX 2.0 SDK and it has already been placed on the shelves at a bookstore (Amazon) near you. The book will walk you through, step-by-step, giving you the ins and outs of JavaFX 2.0. When you encounter a chapter you will be presented recipes which will pose a ...

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Why are Enterprises looking at BigData?

The advent of the Social Collaboration, Online Selling, Digital Goods, Mobile means every enterprise wants to process the transactional and analytical data, that is being collected at multiple customer touch points. All this data need to be processed so that the enterprise can better understand the customer, his social network, his buying patterns and other things. This has led to ...

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WebSphere Classloader Memory Leak Prevention

Solving Application ClassLoader Leaks Applications tend to want to: Start new threads using Runnable implementations from the application class loader. Even though the JEE programming model does not support this, customers frequently either directly create new threads or indirectly create them by using Timers. Customers must ensure that these threads are stopped when the corresponding application (or WAR module) is stopped: javax.servlet.ServletContextListener.contextDestroyed can be ...

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What is Akka?

Before I delve into what is an Akka, let us take a step back to understand how the concept of concurrent programming has evolved in the application development world. The applications have evolved from being large monolithic procedures to a more object oriented model. With the advent of Java EE and Spring framework, the application design evolved into more of ...

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