InfoQ Homepage Development Content on InfoQ
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Apache Flink 1.2 Released with Dynamic Rescaling, Security and Queryable State
Apache Flink 1.2 was announced and features dynamic rescaling, security, queryable state, and more. The release resolved 650 issues, maintains compatibility with all public APIs and ships with Apache Kafka 0.10 and Apache Mesos support. Flink’s dynamic rescaling allows one to change the parallelism of a streaming job or of an operator within the job.
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Eric Evans: DDD is Not for Perfectionists
A problem with Domain-Driven Design (DDD) since the beginning has been the too common hunt for perfect designs, but DDD is not for perfectionists. In order to stop that hunt you need to have some idea of how to create software that is well designed, yet not perfect, Eric Evans noted in his presentation at the recent DDD Europe Conference in Amsterdam.
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What's New in .NET Core Tools
The release of the latest Visual Studio 2017 RC joined an update to the .NET Core tooling. This brings several improvements, including changes to templating and many needed bug fixes.
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Data Geekery Releases Version 3.9.0 of jOOQ, a Java ORM Tool for Building Type Safe Queries
Data Geekery released version 3.9.0 of jOOQ, their object-relational mapping (ORM) Java toolkit, featuring an experimental parser, additional type safety, better integration with Oracle, and improved transactions. InfoQ spoke to Lukas Eder, founder and CEO of Data Geekery GmbH, about this latest release.
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Date and Time Formatting in Java 9 Will Get Closer to Unicode Locale Standards
Several parsing and formatting changes have been incorporated to bring the functionality closer to Unicode Locale Data Markup Language (LDML). These changes have been supervised by Stephen Colebourne, creator of the popular library JodaTime, precursor of the new java.time component in Java 8. Abiding by the Unicode standard will provide better interoperability with other non-Java systems.
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NIST Guidelines Require Second Auth Factor When Using Biometrics
NIST has released a public draft of new Digital Identity Guidelines, described as “a significant update from past revisions.” The guidelines describe acceptable use of multi-factor authentication (MFA). Furthermore, when using biometric data as one authentication factor, it must be combined with something you have, and not something you know, such as a password.
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Android Things Brings TensorFlow-Based Machine Learning and Computer Vision to IoT Devices
Recently released Developer Preview 2 (DP2) for Android Things makes it easier to use TensorFlow for machine learning and computer vision on IoT devices. Additionally, it extends USB audio for several IoT platforms, adds Intel Joule support, and enables direct use of native drivers through a new Native PIO API.
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The Future of Microservices: Functional Service Design and Observability
In preparation for the upcoming microXchg conference, running 16th and 17th February in Berlin, InfoQ sat down with Uwe Friedrichsen and Adrian Cole and discussed functional service design, the new challenges with observing a distributed system, and what the future holds for the microservice architectural style.
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The Dangers of If Statements in Domain Logic
The if statement found in most programming languages has two major roles, validating input to protect the domain from erroneous data, and for dealing with business logic inside the domain. Unfortunately, we spend too little time managing the risks from a business or domain perspective, Udi Dahan claimed in his presentation at the recent DDD Europe Conference in Amsterdam.
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Atomist Launches Alpha Programme
Atomist has launched an Alpha Programme for those who want to try out Rug, the company’s meta-meta-programming language. Rug is used to automate the development workflow by generating repetitive or boilerplate code, and is orchestrated by Atomist. Rug aims to improve productivity when working with distributed systems such as microservices.
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TypeScript 2.2 Adds New Object Type, Better Mixin Support, and More
Scheduled to be released sometime in February, TypeScript 2.2 has reached RC status. Besides a new JSX emit mode for React Native, it also includes a new object type to represent non-native types, better support for mixins and composable classes, and more.
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Practical Tips for Automated Acceptance Tests
Testing techniques like Equivalence Partitioning, Boundary Value Analysis, and Risk-based Testing can help you decide what to test and when to automate a test. InfoQ spoke with Adrian Bolboacă about different types of tests, writing sufficient and good acceptance tests, criteria to decide to automate a test, and how to apply test automation to create executable specifications.
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Visual Studio 2017 Coming March 7
Microsoft has announced the formal release date for Visual Studio 2017. Development continues unabated however, as the latest Release Candidate brings a host of critical bug fixes along with a couple last minute new features.
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Snapchat’s Reliance on Google Cloud Raises Concerns Following IPO Filing
Snap Inc., the company responsible for Snapchat, has prompted questions around its reliance on Google Cloud, following its $3 billion IPO filing. Reporting 158 million average daily active users, and annual revenue of $404.4 million, the company entered into an agreement with Google to purchase at least $400 million of cloud services in each year of the five year agreement.
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Approval Testing with TextTest
Approval testing is a test technique which compares the current output of your code with an 'approved' version. The approved version is created by initially examining the test output and approving the result. You can revisit the approved version and easily update it when the requirements change. Approval testing is supported by TextTest, an open source tool for text-based functional testing.