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Open Source

Clippets

Programmers typically rely heavily on the clipboard – frequently, a single clipboard isn’t enough. Some desktop systems, like KDE, provide tools to support multiple clipboards, allowing the user to switch between different content previously stored in the clipboard as required.

Clippets provides a similar feature integrated into the Eclipse IDE. Among other things, this means that switching clipboards works in the same way on all platforms supported by Eclipse, which can be useful for developers frequently working on different systems.

One clipboard content item stored by the plug-in is called a “clippet”. Clippets can be labelled and arranged in multiple lists called “clippet collections”. Individual collections can be marked as persistent, which causes them to be stored permanently so that they are still available when Eclipse is restarted.

Categories: Open Source

EclipseCon France 2014 - Register Now

Eclipse News - Wed, 04/16/2014 - 19:00
Registeration for EclipseCon France is now open! The early-bird registeration deadline is May 18. Register here.
Categories: Open Source

Eclipse Community Survey 2014 - Complete it now

Eclipse News - Wed, 04/16/2014 - 19:00
Please take 5 - 10 minutes of your time to tell us how you are using Eclipse and open source software by completing the Eclipse Community Survey. The participation deadline is May 16, 2014.
Categories: Open Source

Create an Apache Hadoop MapReduce Job Using Spring

DevX: Open Source Articles - Wed, 04/16/2014 - 09:39
Follow this simple six step process to create a MapReduce job in Apache Hadoop using Spring.
Categories: Open Source

Google Summer of Code 10th year celebration in Singapore

Google Open Source Blog - Tue, 04/15/2014 - 18:00
During our whirlwind tour of SE Asia, the Google Open Source Programs team made a stop in Singapore to hold an event celebrating the 10th year of Google Summer of Code at the local Google office. Guest writer and GSoC enthusiast Ellen Wang shares her experience of the event below.

On February 25, the Google Open Source Programs team held a 10 year celebration for the Google Summer of Code (GSoC) program at the Google office in Singapore. I was proud to attend the event as a GSoC enthusiast and second year CS student at the National University of Singapore and also very eager to learn more about how the program works. It was so exciting that a team from Google flew all the way from San Francisco to visit us.

GSoC, a program that continuously attracts new blood into the open source world, is celebrating its 10th instance this year. Following on the success of the GSoC program for university students, Google started Google Code-in (GCI), a contest for pre-university students (e.g., high school and secondary school students ages 13-17) with the goal of encouraging young people to participate in open source.
singapore 10things.jpg
On the day of the event, over 60 people attended the event including past GSoC students and mentors, professors from National University of Singapore and prospective students.  After a warm welcome to all the invitees, two Googlers from the Open Source team, Stephanie Taylor and Cat Allman, talked about the steps involved in applying to this year’s program. Specifically, they talked about the  “10 things” GSoC initiative and described how the program will be enhanced to celebrate a decade of GSoC. One of these enhancements includes a 10% raise in the student stipend to 5500 USD. Stephanie then spoke about GCI and encouraged the audience to help get younger students involved.

Dr. Damith C. Rajapakse, a professor from the School of Computing at National University of Singapore, then gave a speech on his TEAMMATES project which was accepted as a mentoring organization in the 2014 instance of GSoC. National University of Singapore was also recognized for having the 3rd most students from a university participate in this program over the last nine years.

The event then featured local Singapore mentors and past GSoC students who gave talks on their projects, shared their personal experiences, and gave constructive ideas on how to develop a great proposal. This was perfect timing for someone like me, as the application period for students opened just a couple of weeks after the event.

The evening concluded with a networking session for students to talk with mentors, former GSoC students and the visiting Googlers. Guests were also treated to an abundance of  well-prepared food and refreshments. The attendees enjoyed the event very much — it was very successful in raising the awareness of GSoC and open source development. It was a huge help for me as well! I applied to GSoC 2014 (students will be announced on April 21) and I hope to start regularly contributing to open source development. Many thanks to the Google team!

By Ellen Wang Zi, Computer Science Student, National University of Singapore

Categories: Open Source

Apache OpenOffice Extensions Site Gets Social!

SourceForge.net: Front page news - Tue, 04/15/2014 - 16:00

Apache OpenOffice Extensions logo

We’re excited to announce that we just released a new Apache OpenOffice Extensions website. This is the fourth time we improve Apache OpenOffice distribution platforms since we started hosting Apache OpenOffice Extensions and Templates sites back in March 2012 (official timeline). Read below to know more about what’s new.

1) Login with your Facebook or Google account.

Finally Apache OpenOffice Extensions website got social, and allows people to login using their Facebook or Google accounts. This would avoid end-users the annoyance of registering and make possible for them to upload a new extension or template from the very first moment. Check it out at http://extensions.openoffice.org/user

The feature has been already tested over the last few weeks and we observed that about 30% of new users are coming this way.

2) OpenOffice 4 Compatibility Information

You can now see at a glance if an extension is OpenOffice 4 compatible (e.g. English dictionaries for Apache OpenOffice). For extensions that do not provide compatibility data we welcome end-users feedback, by casting a vote to “User feedback: Compatible with OpenOffice 4.x?” you can help us to update the compatibility information for extensions that do not have it yet.

3) OS Automatic Detection

Since some extensions have different versions for the different operating systems – e.g. MySQL Driver for Apache OpenOffice – the “Download now” button automatically provides the right version, with a link to “All releases” to download versions for other platforms.

4) Co-maintainers

Now Extensions authors can enable “co-maintainers” to manage their extensions. Co-maintainers are allowed to create new releases and to modify extensions’ descriptions.

Categories: Open Source

April 2014 Project of the Month, Free Pascal

SourceForge.net: Front page news - Tue, 04/15/2014 - 10:00

For our April Community Choice Project of the Month, our community has selected Free Pascal, an advanced open source compiler for Pascal and Object Pascal. The project founder, Florian Klaempfl, tells us about the project’s history, purpose, and direction.

SourceForge: Tell us about the Free Pascal project please…
Florian Klaempfl: Free Pascal is an OSS pascal compiler supporting different pascal dialects including modern Object Pascal (for more details see theFree Pascal Homepage). It is written itself in Object Pascal, so users do not have to learn another language if they want to improve their compiler.

SF: What made you start this?
FK: In the early nineties, I wrote chess programs using Turbo Pascal. TP was a 16 bit compiler so it didn’t take advantage of the i386 getting popular at this time. After trying some alternatives, none of them made me happy, I decided to write my own compiler. This was in 1992. The current code base
of FPC was started in 1993. Sounds like Linux at the beginning of Linux, right :) ?

SF: Has the original vision been achieved?
FK: In the sense having a 32 bit compiler pascal compiler yes, in the sense to use it for my chess programs, no. I never ported my chess programs to FPC.

SF: Who can benefit the most from your project?
FK: I think there are multiple groups who can benefit from it:

- People who want to learn only one programming language which allows them to use it for almost everything: FPC can be used to do big database applications but it can be also used to program embedded devices. It can used to write numerical applications but also to code for mobile devices.
- People who have a large Pascal/Object Pascal code base
- People who are interested in a programming language which offers a compromise between high
productivity and the advantages of native code.

Obviously, the most can benefit people who are part of all three groups.

SF: What is the need for this particular programming language?
FK: Modern Object Pascal supports most language features which are expected from an OOP language. In combination with its good readability it is a very powerful language.

Further, the concept of modern pascal allows very fast turn around times. While some people might say this does not matter with today’s machines, I still think it makes a difference: FPC rebuilds its own compiler sources (i386: ~330k lines) on an i7-4770 in 4.2 s. So no need for a cup of coffee while compiling a project.

SF: What’s the best way to get the most out of using Free Pascal?
FK: Using it in combination with Lazarus: a RAD built on top of FPC.

SF: What has your project team done to help build and nurture your community?
FK: I think the most important thing which helps to build and nurture the community is stability in
different aspects:
- we try to break never people’s code, so backward compatibility is an important thing
- we do heavy automated regression testing to avoid bugs being reintroduced, every night, regression tests are run with >100 different configurations and the results are collected in a central database. Developers get a daily summary of the
tests with information if regressions appeared.

Further, FPC tries to give everybody being interested in an working on an OSS pascal compiler a “home”. So the development directions are mainly driven by the contributors as long as two basic rules are obeyed: FPC is a pascal* compiler and other people’s code may not be broken**. Recent example: revived m68k support. It makes little sense to do so to get a lot of new users of FPC, but if somebody implements it, he is free to do so.

*This is subject to be discussed, “wirthian language” compiler might be also ok.
**Of course, sometimes this cannot be avoided.

SF: Have you all found that more frequent releases helps build up your community of users?
FK: FPC has a very slow release cycle: during the last years it is approx. one release per year. There are multiple reasons for this:
- FPC is almost 21 years old, so it has a certain maturity
- Building FPC from development head is not hard and normally done, see above, within a few minutes
- Due to its maturity and a development model grown over years, the development head is normally also very stable.
- We normally prepare binary releases and these binary are not just compiled, packed and uploaded but also tested. Due to the amount of platforms this takes considerable time so each release cycle eats also time which could be spent in other things.

SF: What was the first big thing that happened for your project?
FK: For me it was when the compiler was able to build its own sources, this was in 1995 after almost two years of work.

SF: What is the next big thing for Free Pascal (and/or feel free to talk more in depth about the “write once, compile anywhere” concept, sounds interesting)?
FK:The next big thing for FPC will be the 3.0 release: Besides a lot of new language features, bug fixes and improvements, 3.0 will extend the compile anywhere concept further. It is expected to be the first FPC release version which can output jvm code as well as i8086 code and maybe also the avr port will be in a usable shape.

SF: How long do you think that will take?
FK: We expect to release 3.0 in 2015.

SF: Do you have the resources you need to make that happen?
FK: Normally yes, the only question is what will be in 3.0.

SF: If you had it to do over again, what would you do differently for Free Pascal?
FK: Actually not much.

SF: Is there anything else we should know?
FK: I think the most interesting aspect is that FPC has no company in the background: it is developed by a community of people having either a need for it or having just fun working on it as their hobby.

Categories: Open Source

Robert Liguori: My Five Favorite NetBeans IDE Features

NetBeans Highlights - Mon, 04/14/2014 - 23:07
An article series focusing on NetBeans users and their five favorite NetBeans IDE features. Robert Liguori, author of the Java 8 Pocket Guide and certification guides on Java and NetBeans IDE.
Categories: Java, Open Source

Feature Enhancement: Including Repository Content into Wiki

SourceForge.net: Front page news - Mon, 04/14/2014 - 21:07

We’ve just rolled out a new feature which enhances the [[include]] wiki macro in Apache Allura (which powers SourceForge projects). Before this addition, the macro has typically used to include the contents of a different wiki page into the current page. This has now been expanded to to allow a file in a (SVN, Git, or Mercurial) repository to be the import source. We expect this will particularly useful for projects that like to keep their documentation in their repository, but also want it to be easily accessible from the web in a wiki.

Here’s an example of how this might work:

Let’s say I want to include this example document written in Markdown into a wiki page.

I go to the edit mode for the wiki page, and enter this macro:

[[include repo=git path=example-documentation.md]]

include_demo

Note: for the “repo”, you need to specify the name (ie., mount point) of the repository, not the type. In my example, the name of the repository is “git”.

And that’s it! You can now see the contents on the wiki page: https://sourceforge.net/p/uberproject/wiki/include_demo/

Of course, this feature works with SVN, Git, and Mercurial repositories on the SourceForge site. Another benefit of this feature, is that the import module supports a variety of formatting languages, so you’re no longer limited to just Markdown.

The format is detected by the file extension, we support the following:

Markdown: .md, .mkd, .mkdn, .mdown, .markdown
Textile: .textile
Creole: .creole
ReST: .rst, .rest, .rst.txt, .rest.txt

Source code file extensions (eg., .c and .py) will be syntax highlighted, but will otherwise be unformatted. All other file extensions will be rendered as plain-text. Binary files, of course, can’t be displayed.

Categories: Open Source

Projects of the Week, April 14, 2014

SourceForge.net: Front page news - Mon, 04/14/2014 - 15:02

Here’s the projects that we’re featuring this week on the front page of SourceForge.net:

Dungeon Crawl Reference

Dungeon Crawl Stone Soup is a free rogue-like game of exploration and treasure-hunting. Stone Soup is a continuation of Linley’s Dungeon Crawl. It is openly developed and invites participation from the Crawl community. See http://crawl.develz.org !

[ Download Dungeon Crawl Reference ]

Eric Integrated Development Environment

Eric is a Python IDE written using PyQt and QScintilla. It provides various features such as any number of open editors, an integrated (remote) debugger, project management facilities, unit test, refactoring and much more.

[ Download Eric Integrated Development Environment ]

rasplex

This is a community driven port of Plex Home Theater for the raspberry pi. The port is lead by Dale Hamel, with help from various members of the plex community. Plex has also been helpful in the creation of rasplex, and has supported the effort.

[ Download rasplex ]

Kiwix

Kiwix is an offline reader for Web content. It’s especially intended to make Wikipedia available offline. With Kiwix, you can enjoy Wikipedia on a boat, in the middle of nowhere… or in Jail. Kiwix manages to do that by reading ZIM files, a highly compressed open format with additional meta-data.

[ Download Kiwix ]

multibootusb

Multi Boot USB / MultiBoot USB / MultiBootUSB is a software / installer which allows user to install multiple Live Linux Distros in to a single USB drive / Pendrive / Flash drive and able to boot from it. USB can be tested without reboot using inbuilt QEMU.

[ Download multibootusb ]

Wake On Lan

Wake On LAN, WakeOnLAN, shutdown software for Windows. A powerful WOL, ping, shutdown, GUI application.

[ Download Wake On Lan ]

ApexDC++

ApexDC™ is an innovative DC++ client based on StrongDC++. It features external plugins and scripting through LUA and much more. Both operators and users alike should find ApexDC++ a pleasant experience.

[ Download ApexDC++ ]

FTLEditor

A 3rd-party tool to edit user files for the game FasterThanLight. With this, you can unlock any or all ships and achievements in your user profile, or tweak most aspects of saved games: crew, systems, weapons, fires, breaches, etc.

[ Download FTLEditor ]

SleepyHead

Open-source, cross platform, sleep tracking software with a focus on monitoring CPAP treatment.

[ Download SleepyHead ]

Categories: Open Source

Database .NET 11 released!

PostgreSQL News - Mon, 04/14/2014 - 01:00

Database .NET v11 is an innovative, powerful and intuitive multiple database management tool, With it you can Browse objects, Design tables, Edit rows, Export data and Run queries with a consistent interface. Free, All-In-One, Portable, Standalone (No Installation) and Multlanguage.

New features from version 10.1 to 11.0:
  • Compatible with the latest versions of PostgreSQL.
  • Updated to Npgsql.dll 2.1.3
  • Added Support for JSON data type of PostgreSQL
  • Added Support for renaming all objects of PostgreSQL
  • Added Executing SQL Statements from a text file
  • Added Displaying Row Count of tables
  • Added Displaying Connection time
  • Added Data Editor for View objects
  • Added Search Table Data
  • Added Empty Table
  • Added New Connection Manager
  • Added New Object Navigator
  • Added Script All Table Data (INSERTs)
  • Added IntelliSense for Cross-schema table access
  • Added Selected Text to Query Builder
  • Added Dynamic Context Menu[?]
The new version is immediately available for download.
Categories: Database, Open Source

Barman 1.3.1 released

PostgreSQL News - Mon, 04/14/2014 - 01:00

14 April 2014: 2ndQuadrant is proud to announce the release of version 1.3.1 of Barman, Backup and Recovery Manager for PostgreSQL.

This minor release introduces support for concurrent backup using physical file based copy through "rsync", in conjunction with pgespresso, a new open source extension available for PostgreSQL 9.2 and 9.3. Concurrent backup allows database administrators that rely on Barman, to finally offload backup operations to a streaming replicated standby server, opening new important scenarios in disaster recovery architectures of PostgreSQL 9.2+ database servers.

The "barman diagnose" command has been implemented to print important information about the system and the configuration of Barman, allowing users to provide detailed diagnostics data in case of support requests.

Version 1.3.1 fixes an important bug on recovery that was affecting only those users having tablespaces created inside the PGDATA directory. This behaviour was introduced in version 1.3.0.

Minor bugs have also been fixed.

Many thanks for funding towards the development of this release go to Adyen (www.adyen.com).

For a complete list of changes, see the "Release Notes" section below.

Links

Release notes

  • Added support for concurrent backup of PostgreSQL 9.2 and 9.3 servers that use the "pgespresso" extension. This feature is controlled by the "backup_options" configuration option (global/server) and activated when set to "concurrent_backup". Concurrent backup allows DBAs to perform full backup operations from a streaming replicated standby.
  • Added the "barman diagnose" command which prints important information about the Barman system (extremely useful for support and problem solving)
  • Improved error messages and exception handling interface
  • Fixed bug in recovery of tablespaces that are created inside the PGDATA directory (bug introduced in version 1.3.0)
  • Fixed minor bug of unhandled -q option, for quiet mode of commands to be used in cron jobs (bug introduced in version 1.3.0)
  • Minor bug fixes and code refactoring

Download

About Barman

Barman (Backup and Recovery Manager) is an open source administration tool for disaster recovery of PostgreSQL servers written in Python. It allows your organisation to perform remote backups of multiple servers in business critical environments and help DBAs during the recovery phase. Barman’s most requested features include backup catalogues, retention policies, remote backup and recovery, archiving and compression of WAL files and backups. Barman is distributed under GNU GPL 3.

Categories: Database, Open Source

JBoss Tools (Luna)

JBoss Tools 4.2.0.Beta1 is an umbrella project for a set of Eclipse Luna plugins that includes support for JBoss and related technologies, such as Hibernate, JBoss AS, CDI, Aerogear Hybrid Mobile, Apache Cordova, JSF, (X)HTML, Seam, Maven, and more.

This entry has the majority of JBoss Tools but does not include features that requires dependencies outside of what is common from Eclipse JEE and m2eclipse.

Eclipse 4.4.0.M6 (Luna M6) or later is required.

NOTE: If you are using Oracle JDK 7u40 (1.7.0_40), and encounter an issue using JBoss Central, Eclipse Marketplace or Mylyn, it may be due to a temp file creation bug. Please use a newer JDK version, such as 7u45 (1.7.0_45).

NOTE: Note: JBoss Tools can run on Java 8, but Java 8 development support is coming in Beta2.

Categories: Open Source

Red Hat JBoss Developer Studio (Luna)

Red Hat JBoss Developer Studio 8.0.0.Beta1 is available as both a fully bundled Eclipse distribution and a single installable feature on the Eclipse Marketplace.

Includes the majority of JBoss Tools 4.2.0.Beta1, plus all its needed dependencies and 3rd party plugins, allowing for an easy one-click and no-fuss installation.

JBoss Developer Studio 8.0.0.Beta1 - and JBoss Tools 4.2.0.Beta1 - includes support for JBoss and related technologies, such as Hibernate, JBoss AS, CDI, Aerogear Hybrid Mobile, Apache Cordova, JSF, (X)HTML, Seam, Maven, and more.

For a quick overview, see JBoss Developer Studio 7: jQuery Mobile. More videos here: http://docs.jboss.org/tools/movies/

See also: http://www.redhat.com/products/jbossenterprisemiddleware/developer-studio/

This release was built with Eclipse 4.4.0.M6 (Luna M6), but should also work with other Luna or Eclipse 4.4.x versions.

Luna JEE bundle recommended: http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers...

NOTE: If you are using Oracle JDK 7u40 (1.7.0_40), and encounter an issue using JBoss Central, Eclipse Marketplace or Mylyn, it may be due to a temp file creation bug. Please use a newer JDK version, such as 7u45 (1.7.0_45).

NOTE: Note: JBoss Developer Studio can run on Java 8, but Java 8 development support is coming in Beta2.

Categories: Open Source

Updated: Eclipse Foundation Announces Java 8 Support

Eclipse News - Fri, 04/11/2014 - 19:00
The Eclipse Foundation is pleased to announce the availability of Eclipse Kepler packages with the Java™ 8 support. These downloads contain the original Eclipse Kepler SR2 packages with Java™ 8 patches applied.
Categories: Open Source

MediaGoblin: our summer of awesome

Google Open Source Blog - Fri, 04/11/2014 - 18:00
Our final in a series of wrap-up posts from Google Summer of Code 2013 comes from Christopher Webber at MediaGoblin, a free software media publishing platform. MediaGoblin also took part in the Outreach Program for Women, a program inspired by GSoC to help get more women involved in free and open source software. Students from both programs are highlighted below.
MediaGoblin had a really great summer. We were lucky to participate in both Google Summer of Code (GSoC) and the Outreach Program for Women. Read more about the great work accomplished last summer below:

Google Summer of Code Students:
  • Aditi Mittal’s blogging media type works, and we are polishing it up before we get it merged into master. Several exciting things came out of her work, including efforts to generalize media types as plugins (which they now are!). We use this new plugin infrastructure with the blogging media type, which now has its own panel and view.
  • Praveen Kumar got his search plugin up and running using Whoosh; efforts are now being made to merge and polish up with the present codebase.
  • Rodney Ewing went above and beyond all expectations for the summer. Not only did he finish “pluginifying” authentication (adding multiple plugins including LDAP, OpenID and Persona), he helped immensely with code review and many other projects, including most of the work on the “pluginification” of media types.
Outreach Program for Women projects:
  • Emily O’Leary worked on various testing tasks: improving the speed of unit tests (merged), working on a Jenkins testing setup set up for MediaGoblin, and getting a functional testing setup with Selenium. In the process, we also discovered some issues about how hard it is to get functional testing working nicely with MediaGoblin; many lessons learned), as well as the bonus task of ticket triage!
  • Jessica Tallon worked on federation support in MediaGoblin via the Pump API. Jessica wrote a wrapup post which can give you some sense of things, but things have continued even after that blogpost was originally written. PyPump has been rewritten and works really well, can do all sorts of new things. Updating MediaGoblin to include the appropriate endpoints for the Pump API is currently in progress; there is much work still to be done, but an image has been successfully submitted to MediaGoblin via PyPump.
  • Natalie Foust-Pilcher’s administrative interface work is now in place and pending review. The new admin interface includes new features such as the ability to set the terms of service / code of conduct for a site, the ability to submit reports on problematic users, and the ability to review and take actions on said reports. Additionally, some work has been done under the hood, including a nice new, "foundations," framework for adding default values into the database, and a new permissions/privileges system. All this thanks to Natalie’s work.
Overall it was a great summer. Thanks to the hard work of all our students we are much, much closer to MediaGoblin 1.0 than I would have dreamed. The only "downside" is that I now have a large pile of code to review and get cleanly merged with mainline MediaGoblin. Talk about problems you can’t complain about.

Thanks to all our students mentioned above… you all rock! And thanks also to our mentors: Sebastian Spaeth, Joar Wandborg, Aeva Palecek, and Aaron Williamson (well, and myself). Without you all this summer would not have been possible. And now, onward to use all this summer of awesomeness to make MediaGoblin the best media publishing software ever.

By Christopher Allan Webber, MediaGoblin Lead Developer

Categories: Open Source

SourceForge response to Heartbleed

SourceForge.net: Front page news - Thu, 04/10/2014 - 15:35

Hello,

A vulnerability is something susceptible to attack (regardless of whether attack actually occurs using that weakness), and a compromise is something that has been successfully attacked.

Sites and services across the internet have been impacted by a recent vulnerability in OpenSSL, CVE-2014-0160, known as “Heartbleed”. More information on this vulnerability may be found at http://heartbleed.com

Upon disclosure of this vulnerability, SourceForge’s operations team expeditiously reviewed all of our services and confirmed that the only vulnerable service was SourceForge’s Subversion over HTTPS on Allura (svn.code.sourceforge.net).

We are aware of no compromise of our systems. On Tuesday, vulnerable systems were updated to new versions of OpenSSL, and the related SSL certificates were revoked and re-issued with new private keys.

A mailing will be sent to those users who accessed the vulnerable service (svn.code.sourceforge.net) during the window of vulnerability. While we are aware of no compromise of data resulting from this vulnerability, to further reduce risk we are asking certain users to change their SourceForge password.

To change your SourceForge password:

  1. Go to https://sourceforge.net/account/
  2. Login with your username and current password
  3. Click the “Change Password” link on the resulting page
  4. Enter your current and new password in to the form and submit

Passwords may also be reset using the account recovery facility at https://sourceforge.net/account/registration/recover.php

If you do not already make use of a secure password manager, such as KeePass, Password Safe, Mac OS X Keyring, LastPass, etc. you may wish to begin using such a tool, which makes it easy to manage unique and long passwords for every site you access.

Questions and concerns may be directed to the SourceForge.net support team at sfnet_ops@slashdotmedia.com

Thank you,

SourceForge.net Support

Categories: Open Source

Postgres Open 2014 - Opens the Call for Papers

PostgreSQL News - Thu, 04/10/2014 - 01:00

Postgres Open 2014 will be held in Chicago, IL, at the Hotel Sax, September 17 - 19, 2014. It will feature two full days of multiple parallel tracks of PostgreSQL presentations (September 18 - 19th) from both local and global speakers, covering a wide range of topics. In addition we will also be offering a separate day of tutorials (Wednesday, September 17th). For more information about the conference, please see our website http://postgresopen.org/2014

The Program Committee is currently accepting proposals for presentations at the conference. We are interested in submissions from both seasoned PostgreSQL experts and people new in the community, from both locals and representatives of the global community. In short, from anybody who has an interesting story to tell about PostgreSQL, whether deeply technical or story about a successful (or failed) usage. All presentations are 45 minutes, with time for questions. Talks can be submitted via the website: http://postgresopen.org/2014/callforpapers/

Our early-bird ticket registration will open in May 19, 2014 and are available through June 30, 2014, after which tickets will go up to their regular price.

Finally, we are also looking for sponsors! We several tiers of sponsorship, to make sure there is a choice for everybody. If you are interested, please see the Postgres Open sponsor page http://postgresopen.org/2014/becomesponsor/

We look forward to seeing you in Chicago in September!

Categories: Database, Open Source

Easy Console Grepper

An easy to use grep console for Eclipse IDE with a handful of useful functions.

Filter Strings or RegExp matches from any TextConsoles
Highlights matches
Use filter settings for each Grep Console
Enable/disable filter per click
Filter / search ranges of lines (useful for XML-content)
Resume filtering after a console has been disposed and restarted (beta state, tested for Java and Ant Consoles)
Re-filter on demand
...

Categories: Open Source

Case study: Softeco Sismat (TELL ME Project)

The Dojo Toolkit - Announcements - Wed, 04/09/2014 - 20:26

The large companies that use Dojo are widely known. This series features lesser known users of Dojo, and their stories. This time, we interview Stefano Bianchi from Softeco Sismat, an ICT Italian company that participates in the TELL ME project, an European Commission-funded research initiative to improve training in small and medium-sized manufacturing environments.

TELL ME Front End Web App interface – portal-like layout based on ContentPanels

Q: How did you first learn about Dojo?

A: We were looking for a solid JavaScript framework to develop a prototype for a complex, desktop-like web user interface (UI) to support learning activities for blue collar workers at the workplace. We evaluated several different renown frameworks and we found references to Dojo in several JavaScript framework evaluation tables – we then decided to give it a chance considering its features and the positive feedback.

Q: Why did you choose Dojo?

A: At a very first glance, Dojo seemed like a robust JavaScript framework for client-based desktop-like applications, shipped with several interesting built-in features (plenty of ready to use components and widgets, such as e.g. the Store-based Tree widget and the rich chart & graphing library). Also, the documentation (and tutorials, in particular!) was rather rich and complete, providing an incremental guide for differentiated (novice, intermediate and expert) users. The Asynchronous Module Definition (AMD) and Object Oriented (OO) approach was also a plus. As for our previous expertise in Rich Internet Application (RIA) development, what really convinced us to adopt Dojo was the possibility to replicate on client-side the same desktop-like functionality that we previously deployed with a Java-based RIA frameworks on server-side. As the project we are participating in also addresses mobile devices, the Dojo Mobile toolkit represented a valuable asset for future development.

Q: Were you previously using another toolkit?

A: In previous research projects, we extensively used several JavaScript libraries and frameworks – Prototype, Scriptaculous, jQuery, ExtJS to name a few. Working with Dojo represented for our Research & Innovation division a good opportunity to extend our expertise in JavaScript frameworks.

Q: What does your application or service do?

A: The prototype we developed for the front-end user interface of the TELL ME (Technology-Enhanced Learning Livinglab for Manufacturing Environments) system includes several different widgets (“chunks” of HTML5/JavaScript/CSS code that can be used independently or assembled in a portal/desktop-like layout) that provide different learning-oriented functionality. The main aim is to allow a blue collar worker to express a learning need (e.g. “what do I need to learn/be trained/recap about?”) by e.g. selecting a set of predefined tags from several complementary domain taxonomies (i.e. trees of concepts describing activities, tools etc. in a given workplace) and to receive back a learning path (i.e. a list of learning-oriented activities) including different learning contents to be consumed in order to acquire or improve specific working skills. Each type of learning content (documents, videos, pictures, lessons etc.) should be then consumed/launched in a specific widget, with the possibility to also provide social feedback such as ratings and comments.

Q: How does your application use Dojo?

A: The whole application has been developed from scratch with Dojo. Each widget included in the UI can be used independently or assembled according to specific requirements by means of native Dijit and DojoX components such as BorderContainer (for the whole layout) and ContentPane (for inclusion of single widgets). The widget for the selection of taxonomy concepts is based on Dijit’s Tree component powered by JsonStore, following one of the many examples provided in the excellent tutorials. The widgets extensively use the native dojo/topic mechanism for publish/subscribe support in order to exchange data – a few lines of code brings the whole UI alive. Here and there, several useful components were used for specific typical UI functionality, such as Dijit’s Button, input fields, FilteringSelect, Dialog, etc.. Dojo’s has and sniff feature were also used to help contextualize the UI according to the detected features of the device. Finally, the whole UI is designed to interact with a battery of REST web services and Dojo’s native functionality (xhr, script) for Ajax request were extensively used, including support for JsonP.

Q: Overall what is your user experience with Dojo?

A: Dojo generally confirmed the initial expectations: the good impression it gave at a first glance was confirmed by the technical results achieved by the prototype, which included in its first release all the expected functionality, allowing us to focus also on usability and customization (see layouts, CSS and responsive design – e.g. the original Tree-based component was fully customized with minor efforts).

Being a complex framework, Dojo required an initial period of training, but the learning curve was not as steep as initially expected: the examples provided in the tutorials helped a lot in setting up conceptual mock-ups that were then iteratively improved as specific technical knowledge was acquired. Several concepts – AMD, to mention one – are not strictly Dojo-related, but must be nevertheless be proficiently known to ensure a smooth development experience.

Q: What’s your favorite thing about Dojo?

A: The Dojo architecture is truly inspiring when approaching OO JavaScript, and the rich set of examples provided help understanding how to make JavaScript code modular and reusable throughout the application – the whole approach is clear, clean and scalable. Reference documentation and tutorials are also a valuable resource.

Q: What are your future plans with Dojo?

A: One of the possible future plan is to move the prototype developed so far on mobile devices, i.e. to re-implement the front-user interface with Dojo Mobile, which should allow the consumption of learning contents (documents, pictures, videos, lessons etc.) on different mobile devices without developing dedicated apps.

The templating mechanism still has to be completely understood and evaluated, and surely represent a direction to follow for further developments.

The prototype will also be extended to provide all the expected additional functionality, including e.g. the complete logging of all learning experiences by mean of a dedicated Dojo-based logic connecting to a Learning Record Store (LRS) as specified by the ADL specifications for the Experience API.

Furthermore, as the TELL ME project addresses also the use of advanced Human-Computer Interfaces (HCI), the Dojo-based UI will be ported as the HTML layer for an Augmented Reality (AR) application developed on the Unity 3D engine.

Finally, we are definitively eager to start playing with Dojo 2.0 as soon as it is released!

TELL ME Back End Tool Login page – Dojo-powered responsive design

TELL ME Back End Tools entry page – Dojo-powered responsive design

Dojo Tree-based Tags Taxonomy Editor

TELL ME Front End Web App interface – portal-like layout based on ContentPanels

TELL ME Front End Services – Request Widget, using (REST-powered) dynamic Dojo Tree, JsonStore and sniff

About TELL ME

TELL ME (Technology-Enhanced Learning Livinglab for Manufacturing Environments) is a research project co-funded by the European Commission to improve training in small and medium-sized manufacturing environments by using the latest technologies and insights. The aim is to bring innovative learning methods to manufacturers so they can better supply the needs of their markets, which include larger industries. TELL ME is a three-year project that started in November 2012 with a partnership of 14 leading organisations in academic research, technology and industry from Italy, the UK, Finland, Sweden, France, Germany, Spain and Portugal. It is a significant €8.3m R&D project, funded by the Consortium Partners and a €5.9m research grant from the European Commission under its FP7 Framework Programme.

Thanks!

Thanks Stefano for telling us about your experience with Dojo. If you would like to share your experience with Dojo, please contact us.

Categories: Open Source, RIA