DenverJUG

We’re combining forces for a combined DJUG and DOSUG Ignite Night.

April 13th — Agile Velocity and Gradle

Location: Conference Center (building 697 on the Lowry campus) – Room 200C
The campus address is: 9101 East Lowry Blvd. Denver, CO 80230
The address closest to the building is: 1061 Akron Way Denver CO 80230

Here’s some additional directional help:

http://www.cccs.edu/Docs/About/LowryDirectory.pdf

http://www.cccs.edu/Docs/About/DrivingDirectionsToLowry.pdf

5:30-6:00: Food, Soda and Networking
We are grateful to Tek-Systems for their continued sponsorship of the
Food and Soda!

We’ll be raffling off a ticket to this years uberconf(http://uberconf.com/conference/denver/2011/07/home)

Join us for Über Conf 2011 taking place in beautiful Denver, CO July 12 – 15, 2011. Brought to you by the No Fluff Just StuffSoftware Symposium Series, Über Conf will offer 150 technically focused sessions including 25 hands-on workshops centered around Architecture, Cloud, Security, Enterprise Java, Languages on the JVM, Build/Test, Mobility and Agility.

*** BASIC CONCEPTS ***

6:00-7:00: Agile Velocity
The agile development process is all about early and often feedback. One aspect of feedback is how is the team doing… Are we accurate in our estimates? Are we consistent in our velocity? As velocity varies, what is it telling me?

About Ken Sipe
Ken Sipe is the CTO of Gradleware, Inc. (gradleware.com). With the co-founders Hans Dockter and Adam Murdoch, Ken helps companies of all sizes adopt agile practices and automate their enterprise systems enabling faster time to market and higher quality.

Ken has been a practitioner and instructor of RUP since the late 1990s, and an extreme programmer and coach since the middle 2000s. Ken has worked with Fortune 500 companies to small startups in the roles of developer, designer, application architect and enterprise architect. Ken’s current focus is on enterprise system automation and continuous delivery systems.

Ken is an international speaker on the subject of software engineering speaking at conferences such as JavaOne, JavaZone, Jax-India, and The Strange Loop. He is a regular speaker with NFJS where he is best known for his architecture and security hacking talks. In 2009, Ken was honored by being awarded the JavaOne Rockstar Award at JavaOne in SF, California and the JavaZone Rockstar Award at JavaZone in Oslo, Norway as the top ranked speaker.

*** MAIN PRESENTATION ***

7:00-8:45: Enter The Gradle
In the Java build space, first there was ANT, which provided a reliable way to build without an IDE. Then there was Maven, which provided standardization in build life cycles and dependency management. Now… Enter the Gradle, which provides convention over configuration approach to the build process and an approach at building that isn’t based XML.

Prerequisite: Some Groovy helpful

About Ken Sipe
Ken Sipe is the CTO of Gradleware, Inc. (gradleware.com). With the co-founders Hans Dockter and Adam Murdoch, Ken helps companies of all sizes adopt agile practices and automate their enterprise systems enabling faster time to market and higher quality.

Ken has been a practitioner and instructor of RUP since the late 1990s, and an extreme programmer and coach since the middle 2000s. Ken has worked with Fortune 500 companies to small startups in the roles of developer, designer, application architect and enterprise architect. Ken’s current focus is on enterprise system automation and continuous delivery systems.

Ken is an international speaker on the subject of software engineering speaking at conferences such as JavaOne, JavaZone, Jax-India, and The Strange Loop. He is a regular speaker with NFJS where he is best known for his architecture and security hacking talks. In 2009, Ken was honored by being awarded the JavaOne Rockstar Award at JavaOne in SF, California and the JavaZone Rockstar Award at JavaZone in Oslo, Norway as the top ranked speaker.

March 9th — Web Sockets and Garbage Collection

We will be having the meeting at Lowry (details directly below)

Building 758 Rm. 138-140
1059 Alton Way
Denver, CO 80230

Here’s some additional directional help:

Campus Map:

http://www.cccs.edu/Docs/About/LowryDirectory.pdf

Driving Directions:

http://www.cccs.edu/Docs/About/DrivingDirectionsToLowry.pdf

Look for the building with the UNC signage on it as Bldg 758 might be difficult to see.

Be sure to come downstairs – we will try to have signs posted.

Come learn how to use WebSockets to enable bi-directional
communication between a server and a browser. This will be followed by
a discussion on the internals of Azul’s JVM.

Location: Auraria Campus- King Center Rm. KC 213
Directions to the Auraria Campus can be found on the Denver JUG web site.

5:30-6:00: Food, Soda and Networking
We are grateful to Tek-Systems for their continued sponsorship of the
Food and Soda!

*** BASIC CONCEPTS ***

6:00-7:00: Introduction to WebSockets: All the Bi-Directional
Duplexing You Can Handle!
One of the most exciting new additions to the suite of technology
collectively known as “HTML 5” is an official WebSocket standard. This
finally allows full duplex bi-directional communication between a
client and server over HTTP.

However, the technology is still new and rapidly changing. In this
talk, Johnny will explain what a WebSocket is, how it works, how to
implement it on browsers that don’t natively support it, and how it
relates to other technologies and platforms such as HTTP long polling,
Comet, Flash Sockets, mobile, and JSONP. He’ll also discuss the
different types of server implementations, scaling strategies, and how
a it can be integrated into an existing application.

About Johnny Wey
Johnny Wey currently works at Time Warner Cable as a senior engineer
in the web services group. His work and experience include all layers
of a software application including web properties that see millions
of visitors per month. Other than programming, he enjoys spending time
with his wife and 20 month old son, riding his bicycle, and playing
various musical instruments. He can be found on twitter @johnnywey as
well as on his blog at http://www.johnnywey.com

*** MAIN PRESENTATION ***

7:00-8:45: GC Nirvana High throughput, low latency and lots of state,
all at the same time.
You want your low-latency cake and have high throughput too? For years
Java engineers have debated strategies to improve Java runtimes, but
conventional JVM approaches have always placed low-latency and
high-throughput as mutually exclusive design elements. Add on the
desire for large heaps and youíre pushing engineering pipe dream.

But itís not heresy, just innovation and hard work, that we can now
deliver a JVM that does it all for commodity servers. In this session
weíll bust the myth that JVM performance is limited by either
low-latency or high-throughput design tradeoffs and demonstrate
consistent, low-latency response times with high, sustained allocation
rates using 10s of x86 cores and 100s of GBs of memory

About Mark D. Chisam
With more than 24 years of experience in the development of hardware
and software systems, Mark provides the leadership, and direction for
Azul Systems North American Systems Engineering and Field Consulting
practice. Mark has a proven track record in the specification, design,
and deployment of advanced Java-based systems serving the financial
services, electronic commerce, and government industries.

Prior to Azul, Mark was an Industry Architect and Staff Engineer for
Sun Microsystems. During his tenure at Sun Microsystems, he was
involved with market development engineering projects at key
independent software vendors that used Sun’s Java technology as a
technical component of their software implementations.

*** AGENDA ***

5:30 – 6:00 p.m. Food, and Networking.
6:00 – 7:00 p.m. Basic Concepts/First Session
7:00 – 7:15 p.m. Announcements
7:15 – 8:45 p.m. Main/Featured Presentation
8:45 p.m. Door prizes

*** SPONSORS ***

Thanks to our Denver JUG sponsors for
supporting the Java community:

– TekSystems for providing food and drink at the meeting
http://www.TekSystems.com/

– Bolder Staffing and Bolder Professional Placement for sponsoring our books for door prizes.
http://bp2recruiting.com/

– ReadyTalk for sponsoring food at Old Chicago after the meeting
http://www.ReadyTalk.com

– Metropolitan State College Dept. of Mathematics and Computer Science
http://math.mscd.edu/

– EvolutionHosting for providing our web hosting
http://www.evolutionhosting.com

Door Prize sponsors:
– SoftPro for a Gift certificate towards the purchase of a book
http://softpro.stores.yahoo.net/index.html

– JetBrains (1 JetBrains product)
http://www.jetbrains.com/

– O’Reilly Media (sent books to give away)
http://oreilly.com/

– ZeroTurnaround (JavaRebel)
http://www.zeroturnaround.com/

March 9th — Web Sockets and Garbage Collection

Please note, we’ve lost our room at the Auraria Campus, and we are moving to a room at Lowry.  Here’s our location:
Building 758 Rm. 138-140
1059 Alton Way
Denver, CO 80230

Here are links to the map and driving directions:
http://www.cccs.edu/Docs/About/LowryDirectory.pdf
http://www.cccs.edu/Docs/About/DrivingDirectionsToLowry.pdf

Come learn how to use WebSockets to enable bi-directional
communication between a server and a browser. This will be followed by
a discussion on the internals of Azul’s JVM.

Location: Building 758 Rm. 138-140 1059 Alton Way Denver, CO 80230

5:30-6:00: Food, Soda and Networking

We are grateful to Tek-Systems for their continued sponsorship of the
Food and Soda!

*** BASIC CONCEPTS ***

6:00-7:00: Introduction to WebSockets: All the Bi-Directional
Duplexing You Can Handle!
One of the most exciting new additions to the suite of technology
collectively known as “HTML 5” is an official WebSocket standard. This
finally allows full duplex bi-directional communication between a
client and server over HTTP.

However, the technology is still new and rapidly changing. In this
talk, Johnny will explain what a WebSocket is, how it works, how to
implement it on browsers that don’t natively support it, and how it
relates to other technologies and platforms such as HTTP long polling,
Comet, Flash Sockets, mobile, and JSONP. He’ll also discuss the
different types of server implementations, scaling strategies, and how
a it can be integrated into an existing application.

About Johnny Wey
Johnny Wey currently works at Time Warner Cable as a senior engineer
in the web services group. His work and experience include all layers
of a software application including web properties that see millions
of visitors per month. Other than programming, he enjoys spending time
with his wife and 20 month old son, riding his bicycle, and playing
various musical instruments. He can be found on twitter @johnnywey as
well as on his blog at http://www.johnnywey.com

*** MAIN PRESENTATION ***

7:00-8:45: GC Nirvana High throughput, low latency and lots of state,
all at the same time.
You want your low-latency cake and have high throughput too? For years
Java engineers have debated strategies to improve Java runtimes, but
conventional JVM approaches have always placed low-latency and
high-throughput as mutually exclusive design elements. Add on the
desire for large heaps and you’re pushing engineering pipe dream.

But it’s not heresy, just innovation and hard work, that we can now
deliver a JVM that does it all for commodity servers. In this session
we’ll bust the myth that JVM performance is limited by either
low-latency or high-throughput design tradeoffs and demonstrate
consistent, low-latency response times with high, sustained allocation
rates using 10s of x86 cores and 100s of GBs of memory

About Mark D. Chisam
With more than 24 years of experience in the development of hardware
and software systems, Mark provides the leadership, and direction for
Azul Systems North American Systems Engineering and Field Consulting
practice. Mark has a proven track record in the specification, design,
and deployment of advanced Java-based systems serving the financial
services, electronic commerce, and government industries.

Prior to Azul, Mark was an Industry Architect and Staff Engineer for
Sun Microsystems. During his tenure at Sun Microsystems, he was
involved with market development engineering projects at key
independent software vendors that used Sun’s Java technology as a
technical component of their software implementations.

Location: Auraria Campus-Science Building Rm. SI1009
Wednesday February 9th, 2011 — HTML5

This month, Scott Davis will present on HTML5’s application cache, local storage and online video.

Scott is a co-founder of the HTML5 Denver Users Group, which will feature these topics and others. Their inaugural meeting will occur on February 21st in LoDo.
check out the meet up group at http://www.meetup.com/HTML5-Denver-Users-Group/

6:00-7:00: HTML5 in Your Pocket: Application Cache and Local Storage

Two major new features of HTML5 — application cache and local storage — allow you to bring the web experience to your users, even when the web isn’t there. Application cache allows you to write fully functional web applications that work offline as well as online. Local storage allows you to store megabytes of data locally (natch) without having to install a separate database. Combine these two features, and you can begin writing web applications for mobile devices (iPhone, iPad, and Android) that behave like native applications — right down to the icon on the desktop.

But don’t think that these features only work for mobile web development. They are available on PC-based web browsers as well — yes, even Internet Explorer.

7:15-8:45: HTML5 Video on the Web

No HTML5 feature has generated as much excitement and controversy as the new native video element. In this talk, we’ll cut through the hype and the skepticism and get to the real details. Which browsers support the video element? (All of them except one, and you know exactly which one.) Which codecs and containers should I use — MP4 and h.264? Flash? Ogg Theora? Google’s new WebM? And how is HTTP Live Streaming — an Apple specification that is now going through the IETF standardization process — dramatically changing the landscape of web video?

If you visit websites like YouTube or Netflix, you might already be using HTML5 to watch video. Come learn what’s going on under the covers.
About Scott Davis

Scott Davis is the founder of ThirstyHead.com, a training and consulting company that specializes in leading-edge technology solutions like HTML 5, NoSQL, Groovy, and Grails.

Scott is a co-founder of the HTML5 Denver Users Group, which will feature these topics and others. Their inaugural meeting will occur on February 21st in LoDo.
check out the meet up group at http://www.meetup.com/HTML5-Denver-Users-Group/

Auraria Campus, Science Building; room SI1009
February 8th, 2011 — HTML5

HTML5This month, Scott Davis will present on HTML5’s application cache, local storage and online video.

Scott is a co-founder of the HTML5 Denver Users Group, which will feature these topics and others. Their inaugural meeting will occur on February 21st in LoDo.

6:00-7:00: HTML5 in Your Pocket: Application Cache and Local Storage

Two major new features of HTML5 — application cache and local storage — allow you to bring the web experience to your users, even when the web isn’t there. Application cache allows you to write fully functional web applications that work offline as well as online. Local storage allows you to store megabytes of data locally (natch) without having to install a separate database. Combine these two features, and you can begin writing web applications for mobile devices (iPhone, iPad, and Android) that behave like native applications — right down to the icon on the desktop.

But don’t think that these features only work for mobile web development. They are available on PC-based web browsers as well — yes, even Internet Explorer.

7:15-8:45: HTML5 Video on the Web

No HTML5 feature has generated as much excitement and controversy as the new native video element. In this talk, we’ll cut through the hype and the skepticism and get to the real details. Which browsers support the video element? (All of them except one, and you know exactly which one.) Which codecs and containers should I use — MP4 and h.264? Flash? Ogg Theora? Google’s new WebM? And how is HTTP Live Streaming — an Apple specification that is now going through the IETF standardization process — dramatically changing the landscape of web video?

If you visit websites like YouTube or Netflix, you might already be using HTML5 to watch video. Come learn what’s going on under the covers.
About Scott Davis

Scott Davis is the founder of ThirstyHead.com, a training and consulting company that specializes in leading-edge technology solutions like HTML 5, NoSQL, Groovy, and Grails.

Scott is a co-founder of the HTML5 Denver Users Group, which will feature these topics and others. Their inaugural meeting will occur on February 21st in LoDo.

We are pleased to announce that due to the graciousness of the Metropolitan State College Mathematics and Computer Science Dept. we will continue to meet at the Auraria Campus.
For this month’s meeting we will be in the Sciences Building, Room 1011.  The building may be locked so we’ll post somebody at the door to let everyone in.
Here is a map for the campus: http://www.ahec.edu/campusmaps/AHEC3D.pdf.
The address for the campus is 900 Auraria Parkway, Denver CO. 80204.
The building that we’re in this month is South and East of the Tivoli Building.

Please also be aware there has been a change in parking; you now pay on-line if the lot is closed when you leave.

5:30-6:00: Food, Soda and Networking

6:00-7:00: BIRT

BIRT, the industry leading open source reporting and Business Intelligence project within the Eclipse Foundation, is a new generation of reporting and data visualization technology that does just that – enabling you to focus on building the core capabilities of your application and utilizing ready-to-go BIRT technology to add rich information that meet your users’ needs. This presentation introduces BIRT and looks at how you can leverage BIRT to create data-driven reports, web pages, and add compelling information visualizations to your application. We will provide some background on the project and quickly dive into the architecture, key capabilities and how to use BIRT. Using live demonstrations, the presentation takes you through using the BIRT Designer to create reports, data layouts and visualizations, and then looks at how you can integrate these visualizations into your application

About Rob Murphy

Rob Murphy is a BIRT expert and Senior Sales Engineer for the Actuate OEM Group. He has worked in software development for over 15 years and with Java technology since 1997. Since joining Actuate in 2004, Rob has assisted hundreds of customers with the company’s Java based products, including BIRT, BIRT Spreadsheet, and iServer. Rob is also a frequent presenter at open source tradeshows, and has trained Actuate partners around the world.

7:00-7:15: Break and Announcements

7:15-8:45: Reflections on Java Command Line Options

There are many different types of command line options that programs need to recognize. Many languages (e.g.: bash and perl) has built-in processing of command line options; Java does not. The Java Command Line Options (JCLO) package performs this task for a variety of option styles. It also uses Java’s reflection capability to automatically assign values to variables in a specified class.

About Dr. Steve Beaty

Steve has an extensive background in both the theoretic and pragmatic aspects of computer science. He wrote compilers at Cray Computer, both managed a large group of developers and was a software test architect at HP, has a number of active open-source projects, was a professor of computer science at the Metropolitan State College of Denver, and now works for NCAR.

As we have done the last few years, our December meeting will be a mixer/social gathering.  It will start at 6 PM at the Wynkoop Brewery. Their address is: 1634 18th Street Denver, CO 80202.
They are located in the heart of Lower Downtown on 18th between Wynkoop Street and Wazee Street across from the Union Train Station.  Your best bet is probably to take the Light Rail to the Union Station since parking may be hard to come by.  Hors d’oeuvres will be sponsored by KForce and TekSystems. ReadyTalk is paying for the room and some Hors d’oeuvres as well.  We will have some door prizes including a JetBrains IDE, a SoftPro Gift certificate, Zero Turnaround IDE, and an e-book from Manning.



We are at the Tivoli Building Room 329 – Senate Chambers

Please also be aware there has been a change in parking; you now pay on-line if the lot is closed when you leave.

5:30 – 6:00 PM Pizza and Networking

6:00 PM: Hadoop ZooKeeper by Clark Hobbie
(notes uploaded here – 20101110_djug_zookeeper )

Some of the topics covered include:

About the Speaker:

7:15 PM – Data Interchange Formats at Work: XML and JSON by Tom Marrs
Here’s a link to the slide deck on Slide Share.

You’ve seen the ongoing debate between the XML and JSON communities, but you need to make choices in your architecture.

About the Speaker: