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Category Archives: Scala
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At the end of each calendar year, I like to summarize some of the most significant developments in the software development industry that happened during the year that is ending. The choice of these is entirely subjective and obviously colored by my own experience, background, perceptions, and preferences. Not worrying about the opinionated content of such a post, I now present the developments in software development that I consider most significant in 2013.
Gradle appeared to me to enter the mainstream consciousness of software developers in a big way in 2013. I have been watching Gradle’s development and playing with it a bit for some time now, but I have noticed that numerous open source projects now mention it prominently, it’s referenced in many recently published Java books that aren’t even about Gradle specifically, and Google selected Gradle to be delivered with its Android Studio product announced at Google I/O 2013. It took a while for Maven to breakthrough and compete with Ant and I think 2013 is seeing the beginning of Gradle’s breakthrough to challenge Maven and Ant for predominance in Java-based build systems. Three books devoted to Gradle (the short Gradle: Beyond the Basics, the more comprehensive Gradle in Action, and the German Gradle: Modernes Build-Management – Grundlagen und Praxiseinsatz) have listed 2013 publication dates.
Gradle‘s rapidly rising popularity is nearly matched by its torrid rate of new releases. Gradle 1.4 (“faster builds that use less heap space”), Gradle 1.5 (“optimizations to dependency resolution”), Gradle 1.6 (improved Task ordering, “JaCoCo plugin for test coverage,” and support for JUnit test categories), Gradle 1.7 (“fastest Gradle ever”), Gradle 1.8 (performance improvements and more native languages support), Gradle 1.9 (bug fixes and HTML dependency report), and Gradle 1.10 (“command-line usability features”) were all released in 2013.
Gradle’s success does not surprise me. It’s Groovy foundation alone offers numerous advantages: Groovy scripts are easier to write procedural build-style code than is XML, Groovy has numerous syntactic shortcuts, Groovy is easily learned and applied by Java developers, Groovy has full JVM access, and Groovy includes built-in Ant support. On top of its inherent advantages from being built on Groovy, Gradle builds many useful and attractive features of its own on top of that Groovy foundation. Gradle adheres to several Ant and Maven conventions and supports Ivy and Maven repositories, making it straightforward to move from Maven or Ant+Ivy to Gradle.
Ruby on Rails helped bring Ruby into mainstream international prominence and, to a lesser degree, Grails helped do the same thing for Groovy. Gradle has the potential to pick up where Grails left off and push Groovy even further into the spotlight.
9. Trend Toward Single Language Development
For several years now, there has been a definite trend toward polyglot programming (polyglot persistence was even on last year’s version of this post). Although this trend is likely to continue because some languages are better for scripting than others, some languages are better suited for web development than others, some languages are better suited for desktop development than others, some languages are better suited for realtime and embedded device development than others, some languages are better suited for scientific computing than others, and so on. However, I have seen indications of the pendulum swinging back at least a bit recently.
A final example of the trend back to a single language in many environments is the use of Python in scientific computing as covered in the post The homogenization of scientific computing, or why Python is steadily eating other languages’ lunch.
I also don’t want to imply that this is the end of polyglot programming. I don’t see any programming language that is the best fit in all cases and there is no doubt that the most valuable developers will be those familiar with more than one programming language.
8. Internet of Things
I first heard about the concept of the Internet of Things at JavaOne 2012 and it got even more attention at JavaOne 2013. Oracle is not the only company touting the Internet of Things. IBM is into the Internet of Things as are many others.
Some believe that 2014 will be the year of the Internet of Things. Tori Wieldt has called “Java and the Internet of Things” one of the “Top Java Stories of 2013.” In 2013, two series in Hinkmond Wong’s Weblog have focused on the Internet of Things with featured posts on a Thanksgiving Turkey Tweeter and on a Christmas Santa Detector.
Other useful articles with differing opinions on the Internet of Things include The Internet of Things: a tangled web, Here’s the Scariest Part of the Internet of Things, The Internet Of Things Will Be Huge—Just Not As Huge As The Hype, Five Challenges For The Internet of Things Ecosystem, The Internet of things will not arrive in 2014, CES 2013: The Break-Out Year For The Internet Of Things, and Here’s Why ‘The Internet Of Things’ Will Be Huge, And Drive Tremendous Value For People And Businesses.
On a lighter (or more dire, depending on your perspective) note related to The Internet of Things, Aaron Pressman writes, “The whole crazy ‘Internet of Things’ movement to put everything under network control seems tailor made for Hal” (2001: A Space Odyssey).
7. Mobile Development
6. Responsive Design
At the end of 2012, Pete Cashmore predicted that 2013 would be the “Year of Responsive Web Design” because of its “obvious benefits”: “You build a website once, and it works seamlessly across thousands of different screens.” I like Jordan Larkin‘s explanation of responsive web design:
The term “responsive web design” (or responsive mobile design) refers to websites that change and adapt their appearance for optimum viewing on all screen sizes, tablets, smartphones, ipods, kindles along with desktop and laptop computer screens. Occasionally, in the digital arts industry, it is called “fluid design”, “adaptive website design” or “RWD”. Unresponsive websites do not change to fit different screen sizes, which means they can be difficult to navigate and look at on smaller devices.
As a person who is using a smartphone for an increasing percentage of my daily online activities, but still uses the laptop frequently and the desktop occasionally, I am appreciating firsthand the web site authors whose web sites and pages work well on all of these devices. It’s often satisfactory to have two different web sites (one for mobile devices and one for everything else) from a consumer point of view, but this obviously means essentially duplicate code for the site developers. Even from a consumer point of view, there are times when I find the mobile version of a site lacking in features and in those cases it’d be preferable to have the regular site on all devices as long as that regular site appeared nicely on all devices.
2013 has been a big year for Node.js. There are numerous blogs and articles written on it on seemingly a daily basis. Some of these articles include What You Need To Know About Node.js and Node.js keeps stealing Rails’ thunder.
Big Data holds the same #4 spot on my list as it did last year. Apache Hadoop and the R Project are just two examples of popular products/languages riding the Big Data wave. Python too, is increasingly being chosen as the programming language of choice for working with big data sets.
Readers of java.net recently answered a survey regarding Big Data in which the closest thing to a consensus seemed to be that “Big Data Is Probably Significant, but not too Surprising.”
HTML5’s success is even evident in languages not considered part of HTML5 themselves. For example, one of the most heavily advertised new features of Java EE 7 is its HTML5 support. Recent versions of NetBeans IDE (considered primarily a Java IDE despite its multiple language support) have also seemed to emphasize HTML5 among their most important new features in 2013.
As more information is online and we depend increasingly on availability of our data online, security continues to be an important issue for software developers. The trend of highly visibility security incidents continued in 2013. These incidents affected Ruby on Rails, Java, and other languages. The increasing frequency of security patches led Oracle to change how it labels the versions of Java SE.
An early 2013 article, Safeguard your code: 17 security tips for developers, outlines tips developers can take to improve the security of their applications. An earlier article in 2013 spelled out the increasing security concerns companies face. The book Java Coding Guidelines: 75 Recommendations for Reliable and Secure Programs has also been published in 2013. The 10 Biggest Security Stories Of 2013 outlines some of the biggest security-related stories of 2013.
1. Technical Dysfunction
Sadly, from a software development perspective, 2013 may be most remembered for the high profile technical glitches that occurred. Words like “debacle,” “disaster,” and “meltdown” have been associated with these issues and, rightly or wrongly, have reflected poorly on our industry. The most high profile dysfunction has been the embarrassing United States healthcare site healthcare.org. However, the issues that affect reputations and customer confidence have not been limited to government. Wal-Mart and Target, two major retailers in the United States, have had notable web site issues in the latter part of 2013 as well. Cloud-impacting technical dysfunction has occurred in 2013 in several notable cases including Amazon Web Services (AWS) and Google (including the search engine).
There seems to be plenty of blame to go around, but it seems difficult to get a good read on exactly what has caused these high profile technical failures. With healthcare.org, for example, I’ve seen people blame all types of different culprits including not allotting enough time to the effort, not being agile enough, being too agile, failing for despite agile approaches, failing to estimate user load correctly, getting government involved, etc. Although the real reasons are probably multiple and varied in nature and probably interest software developers more than others, the perception of our industry has gotten dinged up in 2013.
Although the developments in software development listed below did not make my top ten, they are significant enough to me to make this “Honorable Mention” category (in no particular or implied order).
One of the benefits of XML many years now has been the ubiquity of XML support across different languages, tools, frameworks, and libraries. For example, I recently wrote about how easy it is to use Groovy to search Subversion logs because Subversion makes its log output available in XML format and Groovy knows XML well.
JSON has been very popular with developers for some time now, but there have been many cases where standard libraries and tools that supported XML did not support JSON, meaning that developers had to write custom writing/reading code for JSON when using those libraries and tools. I’m beginning to see a lot more JSON support with tools and libraries now. Programming languages are also providing nice JSON parsing/writing capabilities. For example, Groovy has had JSON support for some time and Java EE 7 (JAX-RS 2.0) includes JSON support via the Java API for JSON.
Java EE 7 Released
Java EE 7 was officially released in 2013. In a testament to Java EE’s current widespread use and expected potential use of Java EE 7, book publishers have already published several books on Java EE 7 including Java EE 7 First Look, Java EE 7 Essentials, Beginning Java EE 7, Java EE 7 Recipes: A Problem-Solution Approach, Introducing Java EE 7: A Look at What’s New, and Java EE 7 Developer Handbook.
Although I’ve never embraced JavaServer Faces (JSF), the feature of Java EE 7 that has been most interesting to me is the support for Faces Flows. I first read about this feature when reviewing Java EE 7 First Look and Neil Griffin‘s post Three Cheers for JSF 2.2 Faces Flows have reinforced my interest in this feature. In the post A Realistic JSF 2.2 Faces Flows Example, Reza Rahman supports my opinion that this is a key feature in Java EE 7 to watch with the quote, “Faces Flows are one of the best hidden gems in Java EE 7.” Michael and Faces Flows might persuade me to give JavaServer Faces another look.
A recent blog post shows integration of AngularJS with Java EE 7.
Single Page Applications
See the description of Meteor below for another nice explanation of how web development is moving toward what is essentially this concept of single-page applications.
At this point, famo.us is still in beta, but it could be big in 2014 if it is able to deliver on what is advertised in 2013.
There is a shift in the Web application platform, and specifically, people are starting to write a new kind of application, what we call a thick client, where most of the code is actually running inside the Web browser itself rather than in a data center. This is an architectural change from running the software in the data center and sending HTML on the wire to a model where we have data on the wire and the actual rendering, the displaying of the user interface, is happening on the client. … That’s why it feels more interactive. It’s not page-based like the old Web. It’s much more engaging.”
Having a witty acronym helped advertise and communicate the LAMP stack (Linux, Apache HTTP Server, MySQL/MariaDB, PHP/Perl/Python) and arguably contributed to the adoption of this combination of technologies. With this in mind, I found Valeri Karpov‘s post The MEAN Stack: MongoDB, ExpressJS, AngularJS and Node.js interesting. The post’s author is another who points out the productivity advantages that can be gained from using a single language throughout an application. There is already a book underway: Getting MEAN with Mongo, Express, Angular, and Node. It will be interesting to watch this newly minted terminology and see if the stack and its name come close to the success that the LAMP stack and its name have enjoyed.
Commercial Support Dropped for GlassFish 4
Although it took longer to happen than most people probably anticipated, Oracle’s dropping of commercial support for GlassFish 4 was formally announced in 2013 and is what most of us expected when we heard of Oracle purchasing Sun. The future of GlassFish is certainly cloudier now and expectations for GlassFish’s future range from it being essentially dead to it thriving as the reference implementation.
IntelliJ IDEA 13 was released earlier this month. The release announcement highlights support for Java EE 7, improved Spring Framework integration, improved Android support thanks to IntelliJ IDEA Community Edition being used as the basis for Android Studio, improved database handling, and “refined Gradle support.” Eclipse is often the IDE chosen for building a more specialized IDE such as Spring IDE (Spring Tool Suite), Scala IDE, or the new Ceylon IDE, so it’s a particularly big deal that Google chose IntelliJ IDEA as the basis of its Android Studio.
Speaking of Eclipse, the seemingly most used Java-based IDE (especially when you consider the IDEs derived from it or based on it) also saw new releases in 2013. Eclipse 4.3 (Kepler) was released in 2013. There were also numerous popular plugins for Eclipse released in 2013.
Visual Studio 2013
Groovy’s 2.0 release (including static compilation support) made 2012 a big year for Groovy. Although 2013 did not see as significant of enhancements in the Groovy language, the year did start out with the announcement of Groovy 2.1. Perhaps the biggest part of that 2.1 release was Groovy’s full incorporation of Java SE 7‘s invokedynamic, a major Java SE enhancement intended for non-Java languages like Groovy.
In The Groovy Conundrum, Andrew Binstock writes that “with the performance issues behind it, Groovy is a language primed for widespread use,” but warns that Groovy is a language that is “easy to learn, but hard to master.”
As is mentioned more than once in this post, Groovy has had a lot of additional exposure in 2013 thanks to Gradle’s rapidly rising popularity. I believe that Gradle will continue to introduce Groovy to developers not familiar with Groovy or will motivate developers who have not looked at Groovy for some time to look at it again.
It seems to me that Scala continues to gain popularity among Java developers. I continue to see Scala enthusiasts gushing about Scala on various Java and JVM blog comments and forums. One piece of evidence of Scala’s continuing and increasing popularity is the number of new books published in 2013 with Scala in their title. These include Scala in Action, Scala Cookbook: Recipes for Object-Oriented and Functional Programming, Functional Programming Patterns in Scala and Clojure: Write Lean Programs for the JVM, Scala Design Patterns: Patterns for Practical Reuse and Design, Play for Scala, Scala Object-Oriented Programming, and Getting Started with SBT for Scala.
The Go programming language has had strong backing from Google and continues to receive significant online coverage. Go 1.1 and Go 1.2 (with apparently improved performance) were both released in 2013. Of special interest to me is Go’s advertised source code backwards compatibility for all versions 1.x.
2013 was a big year for Apache Camel, the tool that “empowers you to define routing and mediation rules in a variety of domain-specific languages.” Camel-related developments in 2013 included the release of 2.11.0, release of 2.12.0, and release of 2.12.2. These frequent releases and the addition of a new committer and PMC member are among the signs of a healthy open source project.
The release of the Camel Essential Components (DZone Refcardz #170) kicked off 2013 for Camel. Camel got increased attention on software development social media sites in 2013. Zemian Deng‘s Getting started with Apache Camel using Java was syndicated on Java Code Geeks (as was his Apache Camel using Groovy Introduction) and Niraj Singh‘s Introduction to Apache Camel was also syndicated on Java Code Geeks. AndrejV‘s entire blog Just Did Some Code has so far (5 posts in 2013) been devoted to coverage of Camel!
It’s still early to tell because Spring Boot is currently only at version 0.5, but Spring Boot has potential to be be widely adopted and used in the future. It looks like Spring Boot is inspired by and takes advantage of some of the best ideas in Ruby on Rails and Groovy and applies them to easy generation of Spring Framework-based applications.
As stated earlier, Big Data is big and Python is getting a share of that Big Data action. The Continuum Analytics post Python for Big Data states, “Python is a powerful, flexible, open-source language that is easy to learn, easy to use, and has powerful libraries for data manipulation and analysis. … Python has a unique combination of being both a capable general-purpose programming language as well as being easy to use for analytical and quantitative computing.” Tal Yarkoni echoes this statement and observes that his “scientific computing toolbox been steadily homogenizing” on Python.
Python 3.3.1, Python 3.3.2, and Python 3.3.3 were all released in 2013. Cython has joined Pyrex as an alternative for easily writing C extensions with Python syntax and there is even a book on Learning Cython Programming.
The article Python 3.4.0 goes to beta with slew of new modules talks about some of the new features coming with Python 3.4.0 (beta) such as a standard enumeration construct. The article also points out that one of the biggest frustrations with Python remains: the two versions of the language (2.x and 3.x) and no easy route from 2.x to 3.x. From a Java development perspective, I find this interesting because there was a time when arguments like Bruce Eckel‘s (“People who don’t want to deal with these changes don’t upgrade, and those people tend not to upgrade anyway”) seemed logical and sensible. However, it’s not quite as easy as it sounds, particularly when one starts to realize the impact of this on the entire set of products, libraries, and frameworks written for a language that can be heavily impacted and perhaps not usable for some time if ever with the new language.
PHP and HHVM
At the beginning of 2013, Gabriel Manricks outlined reasons Why 2013 is the Year of PHP. Specifically Manricks described tools such as Laravel (including Eloquent ORM), Composer (dependency manager, including Packagist), and PHPUnit (test-driven development in PHP).
The Facebook project HHVM (HipHop Virtual Machine for PHP) was initially released in 2010, but seemed to see a lot more attention in 2013. The original HPHPc compiler compiled PHP into C++ and was another manifestation of the drive to use a single language for authoring an application even if its compiled form was different. The availability of the open source HipHop Virtual Machine (HHVM) for PHP should help address performance issues with PHP; that is seemingly Facebook’s primary reason for developing it.
Interest in cloud computing remained strong and continued to grow rapidly in 2013. Many of the other items discussed in this post (Big Data, security, technical dysfunctions, etc.) have strong relationships to cloud computing. For more on the biggest cloud stories on 2013, see The 10 Biggest Cloud Stories Of 2013.
Internet Explorer 11
I have not used Internet Explorer except when forced to for a number of years. For a long time, I used Firefox almost exclusively and in recent years I’ve used Google Chrome almost exclusively on PCs and Firefox on Linux. When I have been forced by a particular web site to use Internet Explorer, I have done reluctantly and am reminded of the much slower performance of the browser than I’m used to in terms of startup and even navigation. I have noticed over this Christmas break, however, when I had to install Internet Explorer 11 manually because the automatic process kept failing, that it’s a lot faster than even Internet Explorer 10 was. I still won’t make it my primary browser, but it’s nice that it performs much better when I do need to use it (such as to play Atari Arcade games without advertisements).
Internet Explorer 11 offers advantages for developers as well as users of the browser. Advertised benefits for developers (and by extension for users of these developers’ applications) are improved standards compatibility, new F12 developer tools,
It’s not all positive for Internet Explorer 11. Some people seem to want to downgrade to Explorer 10 and reportedly Internet Explorer 11 is presenting some problems for users of Microsoft’s own CRM application (after earlier reportedly breaking Google and Outlook access).
It surprises me a bit that the main Microsoft IE URL (http://windows.microsoft.com/en-us/internet-explorer/download-ie) referenced by the Internet Explorer 11 Guide for Developers still advertises downloading of Internet Explorer 9, a version of that browser that Google has already stated they will no longer support.
Windows 8 Not As Successful
Windows 8 seems to be experiencing similar disappointment after Windows 7 that Windows Vista experienced after Windows XP. In fact, The 10 Biggest Software Stories Of 2013 states, “So it looks like Windows 7 will become the new Windows XP — better get those downgrade rights ready.”
The Raspberry Pi continues to catch a lot of interest (2 million had been sold as of October of this year). There were seemingly endless posts on how to do a wide variety of things with the Raspberry Pi. Some of these that stood out most to me are Premium Mathematica software free on budget Raspberry Pi, GertDuino: An Arduino for Your Raspberry Pi, How an open-source computer kit for kids based on Raspberry Pi is taking over Kickstarter, Running OpenJFX on Raspberry Pi, and Simon Ritter: Do You Like Coffee with Your dessert? Java and the Raspberry Pi.
The 10 Biggest Software Stories Of 2013 points out that “Cisco, Google and VMware last year invested in Puppet Labs” and that “another DevOps player, Opscode, raised $32 million and changed its name to Chef, the name of its flagship product.”
The conversation of whether everybody should or code write code and develop software continued in 2013. Jessica Gross’s writes about 10 places where anyone can learn to code and Megan O’Neil’s article A Start-Up Aims to Teach Anyone to Write Computer Code features one of these places (Codecademy). Kevin Lindquist writes that software development isn’t just for coders anymore. Katie Elizabeth lists the reasons why everyone should learn to code while Ch Continue reading
I have written before (2007, 2008, 2009, 2010, 2011) on my biased perspective of the most significant developments in software development for that year. This post is the 2012 version with all my biases and skewed perspectives freely admitted.
10. Gr… Continue reading
After getting lunch, I went to Hilton Golden Gate 6/7/8 to see Martin Odersky’s (Typesafe) presentation “What’s New in Scala 2.10.” It is always an opportunity to hear a language’s creator discuss the language that he created.
Odersky stated by p… Continue reading
My second session on Tuesday was my first non-keynote session at JavaOne 2012 outside of the Hilton. Peter Hausel (Typesafe) gave the presentation “Modern Web Development with Play Framework 2.0” was held at Cyril Magon I in Parc 55. For some unexplain… Continue reading
Typesafe announced this morning that the Scala Language Integrated Connection Kit (Slick) has been added to its Typesafe Stack. Slick has been mentioned in Michael Azoff’s Typesafe roadmap indicates the maturing of Scala and the ScalaDays 2012 presenta… Continue reading
This post references some of the recent blog posts and articles that have interested me. Topics include Java-specific topics such as Java EE, JavaFX, Scala, and Gradle as well as more general software development topics such as software patents and ope… Continue reading
Typesafe issued a press release today including this initial paragraph:
Typesafe today announced the release of Typesafe Stack 2.0, the latest version of its open source software stack. Typesafe Stack 2.0 is a comprehensive platform for building applic… Continue reading
I have found it both interesting and rewarding to learn a new programming language or major framework on a roughly yearly basis. If forced to self-identify with any single programming language, it would be Java. However, over the years, I’ve used C and… Continue reading