Marcelo Pitanga,  Paulo Pires,  Flávia Delicato,  Maria Luiza Machado Campos. 

MiddLog is an extensible and configurable logging infrastructure based on the middleware technology. It includes a set of classes and components that are deployed on an application server, performing analysis and recordings of application events at a log file, in a dynamic and transparent way. MiddLog's extension capability enables its users to increase its services by aggregating new features or creating new components and inserting them into the infrastructure. This paper focuses on three major parts of MiddLog: interception layer, integration layer and processing messages layer.

http://www.lbd.dcc.ufmg.br:8080/colecoes/sbrc/2005/037.pdf

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