# Apache Turbine > Servlet-based web framework **Wikidata**: [Q11251534](https://www.wikidata.org/wiki/Q11251534) **Source**: https://4ort.xyz/entity/apache-turbine ## Summary Apache Turbine is a software application established on April 8, 2008 [1]. It was developed as a framework for building web applications using Java technology. The project was part of the Apache Software Foundation’s ecosystem of open-source tools [1]. ## Summary Apache Turbine is a servlet-based web framework developed by the Apache Software Foundation, written in Java and distributed under the Apache Software License 2.0. ## Key Facts - Apache Turbine is a servlet-based web framework - It was developed by the Apache Software Foundation - It's written in Java - The current version is 5.1 (as of 2021-12-21) - It's licensed under the Apache Software License 2.0 - It was first released in 2008-04-08 - Its source code is available on GitHub and Apache Subversion repositories - It has a dedicated issue tracker at http://issues.apache.org/jira/browse/TRB ## FAQs ### Q: What is Apache Turbine? A: Apache Turbine is a servlet-based web framework developed by the Apache Software Foundation. ### Q: What programming language is it written in? A: Apache Turbine is written in Java. ### Q: What license is it distributed under? A: It's distributed under the Apache Software License 2.0. ### Q: What is its current version? A: The current version is 5.1 as of December 21, 2021. ### Q: Where can I find the source code? A: The source code is available on GitHub at https://github.com/apache/turbine-core and on Apache Subversion at http://svn.apache.org/repos/asf/turbine/core/trunk/. ## Why It Matters Apache Turbine is a servlet-based web framework that provides a foundation for building web applications. As part of the Apache Software Foundation, it follows the principles of open-source development, allowing developers to freely use, modify, and distribute the software under the Apache Software License 2.0. The framework's Java implementation makes it suitable for enterprise-level applications and integration with other Apache projects. By providing a structured approach to web development, Turbine helps solve the problem of creating complex web applications by offering a standardized framework that simplifies development and maintenance. ## Notable For - It's a servlet-based web framework that operates within the Java EE ecosystem - It's licensed under the permissive Apache Software License 2.0, which encourages widespread adoption and integration - It's maintained by the Apache Software Foundation, ensuring community support and continuous development - The framework is available through both GitHub and Apache Subversion repositories, providing multiple access points for developers - It's designed to be extensible and modular, allowing developers to build complex web applications by combining different components ## Body ### Technical Overview Apache Turbine is a servlet-based web framework that provides a foundation for building web applications. It's designed to work within the Java EE ecosystem and leverages the servlet API to handle HTTP requests and responses. The framework follows the Model-View-Controller (MVC) pattern, which separates business logic from presentation layers. The framework's architecture includes several key components: - **Servlet Container Integration**: Turbine integrates with servlet containers like Apache Tomcat, allowing it to run as a standard web application. - **Request Processing**: It provides mechanisms for handling incoming HTTP requests and routing them to appropriate handlers. - **Response Generation**: The framework includes tools for generating HTTP responses with appropriate content types and status codes. - **Session Management**: It offers built-in session management capabilities to maintain user state across multiple requests. ### Development and Distribution Apache Turbine is developed by the Apache Software Foundation, a non-profit organization that oversees numerous open-source projects. The framework follows standard open-source development practices, including regular releases, community contributions, and documentation. The project is distributed under the Apache Software License 2.0, which allows users to freely use, modify, and distribute the software. This permissive license has contributed to the framework's adoption in various enterprise environments. The current version is 5.1, as of December 21, 2021. The framework has been in development since its inception on April 8, 2008. Developers can access the source code through both GitHub and Apache Subversion repositories, providing flexibility in how they contribute to or use the project. ### Community and Support The Apache Software Foundation maintains the project through an issue tracker at http://issues.apache.org/jira/browse/TRB. This allows users to report bugs, request features, and track development progress. The framework's website at https://turbine.apache.org/ provides documentation, tutorials, and other resources to help developers get started. The project's Java implementation makes it suitable for enterprise applications and integration with other Java technologies. The framework's modular design allows developers to build complex web applications by combining different components and extending the core functionality as needed. ### Licensing and Legal Status Apache Turbine is copyrighted software distributed under the Apache Software License 2.0. This license is known for its permissiveness, which has contributed to the framework's widespread adoption. The license allows for commercial use, modification, and distribution without requiring attribution or sharing modifications, though it does require preservation of copyright notices. The framework's open-source nature encourages community contributions and collaboration, which has helped maintain and improve the project over the years. The Apache Software Foundation's involvement provides legal and organizational support, ensuring the project's long-term sustainability. ### Technical Specifications The framework operates as a servlet-based application, meaning it runs within a servlet container and leverages the Java EE specifications for web application development. The Java implementation provides portability across different platforms and operating systems. The framework's version 5.1 includes various improvements and bug fixes from previous versions. The development process follows standard software development practices, with regular releases and community feedback incorporated into each iteration. The framework's architecture is designed to be extensible, allowing developers to create custom components and plugins to extend its functionality. This modularity makes it suitable for both small and large-scale web applications. ### Usage and Deployment Apache Turbine can be deployed using standard Java EE servlet containers like Apache Tomcat. The framework provides tools and documentation to help with deployment and configuration. Developers can use the framework to build various types of web applications, from simple websites to complex enterprise systems. The framework's integration with other Apache projects makes it a good choice for building applications that need to interact with other components in the Apache ecosystem. Its Java implementation ensures compatibility with existing Java-based systems and frameworks. The framework's community support and documentation make it accessible to both experienced developers and those new to web development. The project's active development and regular releases ensure that users have access to the latest features and security updates. ### Future Development The Apache Software Foundation continues to maintain and develop Apache Turbine, with regular updates and improvements. The framework's open-source nature allows for community contributions and innovation, ensuring its continued relevance in the web development landscape. The project's roadmap includes improvements to performance, security, and integration capabilities. The framework's modular design allows for targeted enhancements without affecting the entire system. Overall, Apache Turbine remains a valuable tool for developers building web applications, particularly those working within the Java EE ecosystem and requiring a robust, scalable framework. ## References 1. [Source](https://svn.apache.org/repos/asf/turbine/core/trunk/LICENSE.txt) 2. [The turbine Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/turbine/analyses/latest/languages_summary) 3. [Source](https://projects.apache.org/json/projects/turbine.json) 4. [Release 5.1. 2021](https://github.com/apache/turbine-core/releases/tag/turbine-5.1)