Home » Author Archives: Keyhole Software

Author Archives: Keyhole Software

Keyhole is a midwest-based consulting firm with a tight-knit technical team. We work primarily with Java, JavaScript and .NET technologies, specializing in application development. We love the challenge that comes in consulting and blog often regarding some of the technical situations and technologies we face.

Kotlin + Android First Impressions

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I am a huge Android fanboy, and have been one ever since the Nexus One came out. The Android OS has evolved so much and into so many variations. Almost a year ago, one of the Android developers I follow on Twitter was pushing for Kotlin to be the main language for Android. What was more interesting was it was ...

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Introducing The Delegate Pattern

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Delegate: a person who is chosen or elected to vote or act for others – Merriam-Webster. Delegate pattern: In software engineering, the delegation pattern is a design pattern in object-oriented programming where an object, instead of performing one of its stated tasks, delegates that task to an associated helper object – Wikipedia. Make things as simple as possible, but not simpler – Albert ...

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Implementing A Bounded Context

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Arguably one of the most difficult Microservices patterns to apply and implement is the bounded context. The bounded context concept originated in Domain-Driven Design (DDD) circles. It promotes an object-model-first approach to a service, defining a data model that a service is responsible for and is “bound to.” In other words, the service owns this data and is responsible for ...

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Give Enterprise APIs Visibility With Swagger And GrokOla

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The Keyhole Labs team is excited to announce that GrokOla now offers Swagger integration. GrokOla users can now upload Swagger JSON files into GrokOla to have all API documentation centralized, searchable, and accessible from within their private GrokOla instance.             This is the example Swagger UI Petstore server loaded into and accessible from GrokOla. Info: http://petstore.swagger.io/. ...

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Don’t Hate The HATEOAS

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Or How I Learned to Stop Worrying and Love the HATEOAS REST has become the defacto, or at least vogue, solution to implementing web services. This is understandable because REST offers a level of self-documentation in its utilization of the HTTP specification. It’s durable, scalable, and offers several other desirable characteristics. However many so-called RESTful services don’t implement HATEOAS (Hypermedia ...

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Agile (micro)Management

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Is Agile Development making your development team dread coming into work? Several years ago, a company I was new to had been pushing the need for agile development. After numerous meetings, discussions and even some training, everyone was excited and ready to roll. Only a few weeks after the agile onset, however, I asked a developer how he was liking ...

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A Working DeltaSpike Tutorial

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On a recent project, I was faced with an interesting problem: take a service method that was given a single object and reuse the same code in the context of a nightly process that would run independently of the application over thousands of the same type of object. It would have been ridiculous to try to maintain an identical process ...

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Introducing Cucumber for Java + STANDARD Values

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As software developers, we all have our favorite tools for making us successful. Many are perfect for the job when getting started but are soon outgrown. Others require too much setup and training to “dip your toes in the water” just to simply find out if they are the right tool. Cucumber JVM is a testing framework that enhances JUnit ...

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Real-Time Applications With RethinkDB

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In the last several years, there have been new requirements and expectations placed on enterprise applications that have dramatically increased application code complexity. Users want dynamic websites that provide instant data feedback or to have multiple users work on the same document concurrently. New frameworks and ideas have also evolved along with the requirements to help cope with the new ...

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Anatomy Of Setting Up An Elasticsearch N-Gram Word Analyzer

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To say that n-grams are a massive topic would be an understatement. Do a quick search and you will find yourself staring down volumes of information on linguistics and language models, on data mining, or on the implication of the breakdown of specific proteins on the decline of debutante culture. Okay, I’m kidding about that last one. But if you ...

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