• Pipeline of Pipelines: Using Java and Continuous Delivery to create Jenkins jobs for DevOps processes

    Attended: 4
    Start Time:

    May 10, 2018 6:00 PM

    End Time:

    May 10, 2018 7:30 PM

    Location:
    Constant Contact Reservoir Place
    1601 Trapelo Road Waltham MA 021451
    1


    Speakers: Harris Kirk Craig Lubin

    As Java developers, we have long understood the value of early feedback, unit testing, and Continuous Delivery (CD). As practitioners in a DevOps environment, we tell others how important these practices are. How well do we implement these practices for software intended for DevOps applications? Do we “eat our own dogfood”? In this presentation, I will review an approach taken to apply Continuous Delivery practices with a Java application that creates Jenkins Pipelines.   After hearing the presentation, I hope you will walk away with some ideas on how to implement your Java CD practices in a broader context. 

    Kotlin and Category Theory: Pragmatic Functional Programming 
    by Craig Lubin

    What is Functional Programming (FP) and why should you care? This presentation will provide a simple (but not simplistic) introduction of the science behind both Functional Programming and Category Theory by using simple mathematical concepts and the Kotlin programming language. I will show how to apply these techniques for error handling, IO, and more AND how these techniques can also work in Java (it's not just a "Kotlin thing").
    No prior knowledge of Kotlin or advanced mathematics is required. 

     

     

    Speaker Biography

    Harris Kirk

    Harris Kirk started his passion for computers while completing his MS in Analytical Chemistry. He soon realized programming was way more fun than Chemistry and after a brief stint as a Chemist, he devoted his efforts to writing lab automation systems for pharmaceutical companies. Harris has been having fun (well, usually) in the Java world for over 22 years.  He remembers when there were only 4 Java books in Barnes and Noble. For the last 10 years, he has been developing Continuous Delivery and automation systems in the DevOps landscape using Java, Groovy, Gradle, Maven, Jenkins, Git and another tooling.     
     
    He plays Ultimate Frisbee even in the Boston winters.


    Craig Lubin

    Craig Lubin is a Full Stack Developer and Functional Programming Evangelist. Combining a mix of passion, and love of software development, Craig has designed and developed several software systems in the financial, e-commerce, and education sectors. Craig specializes in leveraging best of breed open source software to create software infrastructure to drive efficient product creation. Coding well, learning by doing, and building great teams are also his drivers for success. Craig holds a Masters in Physics from the City University of New York.




NEJUG Calendar

Recent Events
    • Refactoring Existing Java Code


      Thursday April, 12, 2018 06:00 PM
      Constant Contact Reservoir Place
      1601 Trapelo Road Waltham MA 021451
      2

    When should you refactor code and when should you not do it?  How do you make sure you have adequate test case coverage?  What are the strategies, techniques, and patterns for refactoring existing code?  And how do you get your boss to agree to let you spend the time to refactor code?  This presentation will cover these questions and more.  Topics covered include Acceptance/Approval Testing, Design Patterns, Code Smells, Refactorings, and Tools.

     

    For a deeper dive into related topics of Mob Programming, TDD, and software craftsmanship, join Ethan at the Mob Programming Conference April 12-13 in Burlington, MA.  Several of the presentations are on refactoring.

     

  • Ten steps methodology for designing superior Cloud Native RESTFul Microservices APIs

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    In this talk, we will explore ten steps methodology for designing superior Cloud Native RESTFul Microservices APIs. Firstly, define the business domain objects and how they relate to use cases. If the use-case is to support <500 ms response time and availability of 99.99%, design the application for Consistency, Availability, and Partition tolerant. Next, Create an ideal design which solves the use-cases, refer to the industry standard JSONs and designs from schema.orgiana.org, and ​microformats.org. Later, find the fail points in the process and go back to the first step to resolving the pain points: Go back to Define the problem. Question to ask is what can go wrong? When can it go wrong? Next, create Facade pattern to connect to either existing Monolithic App or create a new App to support the new cloud use-cases. Create API Gateway, so other companies can build software and create more offerings. Next, design common Layers for error handling, logs, and security. For API security, perform Threat Modeling to find security vulnerabilities and plan for mitigation of risks. Use generic authentication using SAML, OAuth, and JWT to support Authentication and Authorization. Next, create API Versioning strategy so that the REST API can evolve with minimal client changes. Apply Cloud Native design patterns for Resiliency. In the end, test APIs using contract driven testing and PACT files.

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    This presentation is sponsored by the No Fluff, Just Stuff / Software Symposium. The next NFJS event in the Boston area is scheduled for March 16 - 18, 2018 in Wakefield. Venkat is on the roster for that event - which is a great way to get more of him and choose from many other top-tier speakers. Plan ahead and allocate that weekend for a great training, growth, and networking event!

    • Third Annual NEJUG Holiday Party


      Thursday December, 14, 2017 12:00 AM
      Princeton Station
      147 Princeton Street North Chelmsford MA 01864
      2

    the NEJUG Holiday Party is scheduled on our normal "second Thursday" in December, but it is not a normal presentation meeting. Instead, it's an "all fun time" event where we get to chat, eat, drink, and socialize. Think of it as an extended meeting break, without the before-and-after presentation parts. (And with food choices other than pizza!)

    IMPORTANT: Unlike our regular meetings, the holiday party is NOT free. You must purchase tickets in advance, using our EventBrite event page. We are offering an Early-Bird price discount (until November 15), so grab your tix now and save a few bucks!

    Location is Princeton Station Restaurant in Chelmsford, MA

    Ticket prices will be $30 through November 15*, $34/after*. Donations to help defray the cost of course are welcome.
    *EventBrite price will include a processing fee of about $2.90

    Princeton Station
    147 Princeton Street
    North Chelmsford, MA 01864

    There will be a selection of delicious appetizers. Soft drinks and coffee will be served, and drinks of all kinds will be available at the cash bar.
    Come enjoy the great food, fine venue, great company, and raffle prizes! We always want to make it a better event with more to offer.
    We'll have a buffet with a variety of food to choose from, including vegetarian options. Ham, turkey, potatoes, Mediterranean platter, fruit tray, spanikopita, more!