Open Source, Sourceforge Projects, & Apache Foundation


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Open Source, Sourceforge Projects, & Apache Foundation

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  2. 2. • open source. • SourceForge Projects. • Apache Software Foundation. 3
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  4. 4. • Definition. • 4 freedoms. • GNU GPL (General Public License) license. • open source vs. closed source. • open source Examples • Question!! 5
  5. 5. open source is an approach to design, development, and distribution offering practical accessibility to a product's source (goods and knowledge). 6
  6. 6. The freedom to run the program, for any purpose  (freedom 0).  The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this.  The freedom to redistribute copies so you can help your neighbor (freedom 2).  The freedom to improve the program, and release your improvements (and modified versions in general) to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this. eglug presentation on 7
  7. 7. It has 3 versions and it simply means that if you distribute  copies of such a program, whether for free or for a fee, you must:  Passon to the recipients the same freedoms that you received.  Make sure that they, too, receive or can get the source code.  Show them these terms so they know their rights. eglug presentation on 8
  8. 8. Created normally for use  Created to satisfy a need in  by those who want to use it. the market.  The source code to open  Source code for making the software is available by all to software is kept a secret. read.  No guarantee of good  Good documentation , legal documentation or support. right against the company , getting help and support are valid when you PAY .  Software packages have  Has lower security than Open had a better security. source. 9
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  10. 10. Why don't you make your projects, and specially the Graduation Project open source, and participate in open source Projects? 11
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  12. 12. • Introduction • Why to use SourceForge • Tools of SourceForge • CVS & SVN • Demo. • Alternatives of SourceForge. • Some projects on sourceForge. 13
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  14. 14. is a source code repository. It acts as a centralized location for software developers to control and manage open source software development free of charge. is operated by SourceForge, Inc. 16
  15. 15. • VA Linux Systems, and VA Research, SourceForge Inc, is the provider of the SourceForge Development Intelligence application. • The company is headquartered in Mountain View, California. • Founded in 1993 as VA Research graduate student Larry Augustin & James Vera. • They were one of the first computer vendors to offer Linux as a pre-installed operating system.,_Inc. 17
  16. 16. They put seven persons in a room, and they said, quot;All right, write us SourceForge – we’ll provide you with Mountain Dew and pizzaquot;. The developers crafted code for several weeks, not sure how big or small the finished project would need be 18
  17. 17. When the site opened in November 1999, growth was respectable. At the time, the term “open source” was known only by those with a deep technical background. Though the site offered various free tools, only a small crowd of projects registered by the end of the year. 19
  18. 18. • Home to a sprawling universe of open source developers. • It’s an intense hive of software creators. • It contains about 180,000 project and 2 million user, covering every conceivable computing function. • Just as important, SourceForge is the place to see and be seen • Its developers chatting with developers, sharing their stuff, watching each other build • Its a global community of coder, just joining to give birth to that next line of Java or PHP or Perl. • Developers are there primarily for the joy and pleasure of coding. • They want to make themselves more marketable; developing a high profile project boosts your job offers. 20
  19. 19. • Contains the following features: – code hosting – Bug tracking – web hosting – wiki – Mailing List – Forum • And in VCS (Version Controlling System) contains: – CVS – SVN – Bazaar – Git – Mercurial 21
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  21. 21. • It is the management of changes to documents, programs, and other information stored as computer files. It is most commonly used in software development, where a team of people may be changing the same files. • Changes are usually identified by a number or letter code, termed the quot;revision numberquot;. For example, an initial set of files is quot;revision 1quot;. When the first change is made, the resulting set is quot;revision 2quot;, and so on. Each revision is associated with a timestamp and the person making the change. Revisions can be compared, restored, and with some types of files, merged. 23
  22. 22. The codebase for a project is typically stored in a source control repository. A source code repository is a place where large amounts of source code are kept, either publicly or privately. 24
  23. 23. CVS (Concurrent Versions System) is a free software revision control system. Version control system software keeps track of all work and all changes in a set of files, and allows several developers (potentially widely separated in space and/or time) to collaborate. Dick Grune developed CVS in the 1980s. CVS has become popular in the open source software world and is released under the GNU General Public License. 25
  24. 24. Dick created CVS to be able to cooperate with his students Erik Baalbergen and Maarten Waage on the ACK (Amsterdam Compiler Kit) C compiler. The three of them had vastly different schedules (one student was a steady 9-5 worker, the other was irregular, and he could work on the project only in the evenings). Their project ran from July 1984 to August 1985. CVS was initially called cmt, for the obvious reason that it allowed us to commit versions independently. 26
  25. 25. • It is the main tool used to upload your projects (Source Code) on the • You can use it in your programming projects (Mail Server :D) within your team • Used as a backup for your projects and assignments to give you the ability to access them from any where. 31
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  31. 31. is an open source software development community. It hosts software development services such as web hosting, mailing lists, issue tracking, and Subversion revision control. It is hosted by CollabNet. Subversion itself is hosted on Tigris. Tigris competes with the more well-known SourceForge, although it is primarily focused on projects for collaborative software development. 38
  32. 32. • RubyForge is a collaborative software development management system dedicated to projects related Ruby programming language. It was started in 2003 by Ruby Central in an effort to help Ruby community by providing a home for open source Ruby projects. • As of February 2009, it hosts more than 7,000 projects and has over 34,000 registered users. 39
  33. 33. is a non profit and free open source software development community with a hosting portal for open source Java projects. It hosts software development services such as Project related Web hosting, Document Management, Wiki, Forum, Online chat, Issue tracking integrated with Subversion revision control. It was launched by JavaLobby in September 2005 as the first Java based and Subversion supported free collaboration platform for the open source world. 40
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  36. 36. • What is Apache Foundation? • What is the meaning of Apache? • History. • Apache license. • What is Apache project? • Apache Projects. • Alternatives. • What is HTTP request and response? • Apache Tomcat. 43
  37. 37. • The Apache Software Foundation (ASF) is a non-profit corporation to support Apache software projects, including the Apache HTTP Server. The ASF was formed from the Apache Group and incorporated in Delaware, USA, in June 1999. • The Apache Software Foundation is a decentralized community of developers. The software they produce is distributed under the terms of the Apache License and is therefore free software / open source software. The Apache projects are characterized by a collaborative, consensus-based development process and an open and pragmatic software license. Each project is managed by a self-selected team of technical experts who are active contributors to the project. 44
  38. 38. Apache is a tribute to the Native American Indian tribe, a tribe well known for its endurance and skill in warfare. , the original FAQ on the Apache Server project's website, from 1996 to 2001, that quot;The result after combining was a patchy. And till now, we don‘t know which explanation is the most correct. So, both explanations are appropriate. 45
  39. 39. • The history of Apache starts with Robert McCool, was involved with the National Center for Supercomputing Applications server, known simply as NCSA HTTPd. McCool left NCSA in mid-1994, the development of httpd stalled, leaving variety of patches improvements circulating e-mails. Behlendorf collecting patches to be applied to the last version of NCSA. The initial of Apache are available primarily as a series of patches. Hence, initially, name Apache, as it was quot;a patchy serverquot;. At least, so the legend goes. The Apache , consisting of 8 individuals, traded patches on a mailing list set up for purpose. 46
  40. 40. • This is a free software license but it is incompatible with the GPL because it has a specific requirement that is not in the GPL; it has certain patent termination cases that the GPL does not require. We don't think those patent termination cases are inherently a bad idea, but nonetheless they are incompatible with the GNU GPL. • However, version 3 of the GPL includes a provision which allows it to be compatible with licenses that have patent retaliation clauses, including the Apache License. 47
  41. 41. • Apache is the name of the software that allows you to run a web service on a UNIX . Apache is very popular and provides access to most web sites on the INTERNET recent Netcraft of Web around the world placed Apache Powered sites at over 50 percent of the . Part of the reason for this may be that it is freely available, reliable and to set up and configure, and it can provide most of the requirements for web site. 48
  42. 42. • Apache ActiveMQ • FOP (Formatting Objects Processor) • Apache XML Graphics Project • Apache Tomcat. 49
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  46. 46. • URL: Protocol Required Domain name resource identifier resource • Protocol Identifier: – HTTP. – HTTPS. – FTP • Domain name: specifies the IP address which indicates where the resource is located ©ACM Chapter Presentation in Web Development training 53
  47. 47. • IP address is a 32-bit numeric address • Domain Name IP address DNS == Domain Name Service DNS has a DB which contains IP addresses of domain names ©ACM Chapter Presentation in Web Development training 54
  48. 48. It defines how messages between servers and browsers are formatted and transmitted, and what action they should take in response to various commands. ©ACM Chapter Presentation in Web Development training 55
  49. 49. ©ACM Chapter Presentation in Web Development training 56
  50. 50. • Client browser try to establish connection to a server • Server accepts connection • Client send request to the server • The browser assembles an http request and sends it to the server • The server receives the request, prepares and sends a response • Start over… ©ACM Chapter Presentation in Web Development training 57
  51. 51. • HTTP request or response has the same structure: <initial line, different for request vs. response> Header1: value1 Header2: value2 Header3: value3 <optional message body goes here, like file contents or query data; it can be many lines long, or even binary data> ©ACM Chapter Presentation in Web Development training 58
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  53. 53. • Tomcat As a Servlet Container. • Servlet Container. • Servlet. • JSP. 61
  54. 54. • A Java Technology uses to create a Dynamic Servers Pages: – That's mean the server be dynamic such that it support requests from the user and responses it. – Ex. on dynamic servers: YAHOO email Registration the browser send your data to the server & it checked in its data base then send it to the browser • JSP compiler: is a program that parses Java Server Pages (JSPs), and transforms them into executable Java Servlets. – A program of this type is usually embedded into an application server and run automatically the first time a JSP is accessed, but pages may also be pre-compiled for better performance, or compiled as a part of the build process to test for errors. 62
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  57. 57. • Servlets are Java programming language objects that dynamically process requests and construct responses. The Java Servlet API allows a software developer to add dynamic content to a Web server using the Java platform. The generated content is commonly HTML. 65
  58. 58. • A Servlet container is a specialized web server that supports Servlet execution. It combines the basic functionality of a web server with certain Java/Servlet specific optimizations and extensions – such as an integrated Java runtime environment. 66
  59. 59. • Tomcat is a Servlet Container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the Java Server Pages (JSP) specifications from Sun Microsystems, and provides a quot;pure Javaquot; HTTP web server environment for Java code to run. 67
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