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Tag Archives: Spring Integration

Spring Integration – Application from scratch, Part 1

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Before we start In this tutorial you will learn what is Spring Integration, how to use it and what kind of problems does it help to solve. We will build a sample application from the scratch and demonstrate some of the core components of Spring Integration. If you’re new to Spring check out another tutorial on Spring written by me ...

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Polling an http end point using Spring Integration

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It is a little non-intuitive if you want to write a flow with Spring Integration which polls an http end point and gathers some content from the http end point for further processing. Spring Integration provides a couple of ways for integrating with a HTTP endpoint – Http Outbound adapter – to send the messages to an http endpoint Http Outbound ...

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Spring Integration with Gateways

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This is the second article of the series on Spring Integration. This article builds on top of the first article where we introduced Spring Integration. Context setting In the first article, we created a simple java application where A message was sent over a channel, It was intercepted by a service i.e. POJO and modified. It was then sent over ...

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Introducing Spring Integration

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In this article we introduce Spring Integration. If you have not worked with Spring Integration before, it might help to brush up on Enterprise Integration Patterns by Gregor Hohpe. Also I will recommend this excellent introductory article by Josh Long. Context setting In a nutshell, Enterprise Integration Patterns is all about how to get two application (possibly on different technology ...

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Spring Integration – Session 2 – More Hello Worlds

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This is a follow up to Spring Integration Session 1 The first session was a simple Hello World application using Spring Integration. I want to take it a little further by considering a few more scenarios around it. So the first change to the Hello World application is to add in a Gateway component. To quickly revisit the earlier test ...

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Spring Integration – Session 1 – Hello World

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The ” Hello World” of Spring Integration – consider a simple program to print “Hello World” to the console using Spring Integration and in the process visit a few Enterprise Integration Patterns Concepts Before jumping into the program itself, a quick review of messaging concepts will be helpful – Messaging is an Integration style where two independent applications communicate with ...

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Concurrency – Executors and Spring Integration

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Thread Pool/Executors Based Implementation A better approach than the raw thread version, is a Thread pool based one, where an appropriate thread pool size is defined based on the system where the task is running – Number of CPU’s/(1-Blocking Coefficient of Task). Venkat Subramaniams book has more details: First I defined a custom task to generate the Report Part, given ...

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Rube Goldberg Spring Integration

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Spring Integration provides a very nice abstraction over some complexities involved with Integrating systems together – Spring Integration fits the definition of a Facade perfectly from an Integration perspective- something that provides a simplified access to a complicated underlying system. To illustrate this point, consider a simple system, which just takes in a message, and sends it back capitalized, call ...

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Backing Spring Integration routes with ActiveMQ

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As discussed in my previous post, Spring Integration (SI) is a routing framework built on top of the Spring Framework that allows you to use proven enterprise integration patterns to solve system integration problems via messaging. Once you’ve gotten SI configured and working to perform your routing and mediation logic, you may find that you’d like to take the next ...

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Spring Integration with reCAPTCHA

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Sometimes we just need CAPTCHA, that’s a sad fact. Today we will learn how to integrate with reCAPTCHA. Because the topic itself isn’t particularly interesting and advanced, we will overengineer a bit (?) by using Spring Integration to handle low-level details. The decision to use reCAPTCHA by Google was dictated by two factors: (1) it is a moderately good CAPTCHA ...

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