Articles from the Koolzers.net

How to collect and display statistic

() — Sun, 25 Dec 2011 00:00:00 GMT

How to handle exceptions

() — Sun, 25 Dec 2011 00:00:00 GMT

Long-Running Active Object. Part 1.

() — Mon, 01 Feb 2010 00:00:00 GMT

Applied Long-Running Active Object Pattern. Part 1

Once I came across the problem of uploading a file from a client’s application to the application server. File sizes can vary and the situation where the service could reject the file because it exceeds the maximum size of data may occur or cause a timeout. Client’s application was to remain responsive to other high priority events, such as processing events of the application server, rendering the user interface, etc, while carrying out a long-running upload file task. The task needed to be cancelled before completion to show the progress of the completion of the task. It was important for the transfer to continue from the place where an error occurred rather than from the very beginning.

On the way to SOA

() — Wed, 28 Jan 2009 00:00:00 GMT

On the way to SOA

Service-Orientated Architecture (SOA) is a kind of architecture of the Informational Technologies which exists nowadays. Since there is a great number of large and significant volumes and books written on this subject, the main purpose of this article is not to generally describe the SOA itself. I would like to discuss more closely the basic or foundation, technical or infrastructural services instead. There is a definition, found in one of the books on the SOA:

These are the services, which have no specific functionality according to the business, but they provide high level of the technical support to create other services

These are the following services: Security or Membership, Logging and Exception Resolution, Statistic, and some others.