List/Grid Tag Archives: Apache Camel

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Circuit Breaker Pattern in Apache Camel

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 tim ...
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Event processing in camel-drools

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 processi ...
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Lessons learned: ActiveMQ, Apache Camel and connection pooling

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 wh ...
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A Camel Demo for Amazon’s Simple Worklfow Service

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 ...
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Master/Slave Failover for Camel Routes

One way to implement a master/slave failover pattern is to have a cluster of instances of an application where one instance (the master) is currently active and the other instances (the slaves) are on standby, ready to take over w ...
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Building Distributed Workflow Applications on Amazon with Camel

Pipeline with SNS-SQS A workflow consist of independent tasks performed in particular sequence determined by dynamic conditions. Very often a workflow represents a business process, for example the order processing steps in a eco ...
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Add Apache Camel and Spring as jboss modules in WildFly

These days I am playing with Wildfly and Apache Camel and Spring. A simple way to communicate between EARs / WARs is using direct-vm component of Camel. There are many ways to achieve this with or without Camel. Camel works like a ...
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Camel CXF Service With Multiple Query Parameters

While the awesome Apache Camel team is busy fixing the handling of the multiple parameters in the query, here’s a workaround. Hopefully, this post will become obsolete with the next versions of Camel. (Currently, I use 2.7.5) Pr ...
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Apache Camel – developing application from the scratch (part 2 / 2)

This is the second part of the tutorial where we are creating an invoices processing application using Apache Camel. In case you missed it, be sure to look at the first part. Previously we’ve defined functional requirements for ...
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Building Camel-CXF REST Service in OSGi for Karaf – Multicasting and Aggregation

Please check out my other post on building plain CXF services (without Camel) in OSGi on Karaf. This is a basic tutorial on how tocreate a CXF REST service multicast (and parallelize) the incoming request using Camel source data ...
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