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Platform Strategy: From Portlets to OpenSocial Gadgets to Progressive Web Apps: State of the Art

java-interview-questions-answers

Introduction As the world was still at Java’s hand we often define what so called a component-based platform. I had this experience in the year 2000 with OpenUSS (Open University Support System). At that time I had an idea to develop a platform which is extendable using component architecture and J2EE technology ( OpenUSS Component Architecture). After a while we saw the ...

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Painful Reminder of Java Date Nuances

I don’t need to use java.util.Date much anymore these days, but recently chose to do so and was reminded of the pain of using the APIs associated with Java Date. In this post, I look at a couple of the somewhat surprising API expectations of the deprecated parameterized Date constructor that accepts six integers. In 2016, Java developers are probably ...

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Tuning NGINX

While NGINX is much younger than other web servers, it has quickly become a popular choice. Part of its success is based on it being the web server of choice for those looking for a lightweight and performant web server. In today’s article, we’ll be taking an out-of-the-box instance of NGINX and tuning it to get more out of an ...

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Spring boot with Spring Security and jdbc Part 2

spring-interview-questions-answers

On a previous post we implemented security based on the default table schemas that Spring Security issues requests. Considering users and roles, application developers use a schema that fits their needs. Spring gives us the ability to specify the queries needed in order to retrieve information such as username, password and roles. Our custom tables will be pretty different from ...

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Ceylon 1.3.0 is now available

Ceylon 1.3.0 is a major release of the Ceylon language, with over 330 issues closed. This is the first release of Ceylon which supports Android development, the Node Package Manager (npm), and Wildfly Swarm. For the JVM, this release is backwards-compatible with all releases of Ceylon 1.2 (1.2.0 to 1.2.2). For JavaScript, this release is backwards-compatible only with the previous release ...

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How an engineer is supposed to survive accounting

One of the “pleasures” of having your own business is dealing with accounting. Now, to survive I tried a few things like: generating invoices for my clients processing bank statements One boring thing to do is to organizing receipts and invoices I had to pay: travel expenses, books, conference fees, etc. You get the idea. Why I need a software ...

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How to Secure Elasticsearch and Kibana

Introduction Elasticsearch (ES) is a search engine based on Lucene. It provides a distributed, multitenant-capable, full-text search engine with an HTTP web interface and schema-free JSON documents. Kibana is an open source data visualization plugin for Elasticsearch. It provides visualization capabilities on top of the content indexed on an Elasticsearch cluster. Users can create bar, line, and scatter plots, or pie charts and maps on top of large volumes of data. ...

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