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Tag Archives: Apache Camel

Easy REST endpoints with Apache Camel 2.14

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Apache Camel has a new release recently, and some of the new features were blogged about by my colleague Claus Ibsen. You really should check out his blog entry and dig into more detail, but one of the features I was looking forward to trying was the new REST DSL. So what is this new DSL? Actually, it’s an extension ...

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Apache Camel for Micro­service Architectures

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I’ve been using microservice architectures before I knew they were called so. I used to work with pipeline applications made up of isolated modules that interact with each other through queues. Since then a number of (ex)ThoughtWorks gurus talked about microservices. First Fred George, then James Lewis and finally Martin Fowler blogged about microservices making it the next buzzword so ...

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More metrics in Apache Camel 2.14

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Apache Camel 2.14 is being released later this month. There is a slight holdup due some Apache infrastructure issue which is being worked on. This blog post is to talk about one of the new functions we have added to this release. Thanks to Lauri Kimmel who donated a camel-metrics component, we integrated with the excellent codehale metrics library. So ...

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Bootstrapping Apache Camel in Java EE7 with WildFly 8

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Since Camel version 2.10 there is support for CDI (JSR-299) and DI (JSR-330). This offers new opportunities to develop and deploy Apache Camel projects in Java EE  containers but also in standalone Java SE or CDI containers. Time to try it out and get familiar with it. What exactly is Camel? Camel is an integration framework. Some like to call ...

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Camel on JBoss EAP with Custom Modules

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Apache Camel — the best open source integration library Apache Camel is an awesome, open-source, integration library that can be used as the backbone of an ESB, or in stand alone applications to do routing, transformation, or mediation of systems (read: integrating multiple systems). Camel is quite versatile and does not force users to deploy into any particular container or ...

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Circuit Breaker Pattern in Apache Camel

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Camel is very often used in distributed environments for accessing remote resources. Remote services may fail for various reasons and periods. For services that are temporarily unavailable and recoverable after short period of time, a retry strategy may help. But some services can fail or hang for longer period of time making the calling application unresponsive and slow. A good ...

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Event processing in camel-drools

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In a previous post about camel-drools I’ve introduced camel-drools component and implemented some simple task-oriented process using rules inside Camel route. Today I’ll show how to extend this example by adding event processing. So how to describe an event? Each event occur at some time and lasts for some duration, events happen in some particular order. We have then a ...

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Lessons learned: ActiveMQ, Apache Camel and connection pooling

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Every once in a while, I run into an interesting problem related to connections and pooling with ActiveMQ, and today I’d like to discuss something that is not always very clear and could potentially cause you to drink heavily when using ActiveMQ and Camel JMS. Not to say that you won’t want to drink heavily when using ActiveMQ and Camel ...

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A Camel Demo for Amazon’s Simple Worklfow Service

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In a previous post I explained why AWS SWF service is good and announced the new Camel SWF component. Now the component documentation is ready and here is a simplistic fully working demo. It consist of three independent standalone Camel routes: A workflow producer allows us to interact with a workflow. It can start a new workflow execution, query its ...

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