Tag: java

Confitura 2018

At 30 of June 2018 in Warsaw Expo XXI along with 7 of our colleagues from Pretius, I took part in Confitura 2018. It was conference for Java developers with quite local character. I have experience with bigger conference Geecon

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Devoxx Poland 2018

Along with other guys from the Pretius team, I had a chance to participate in this year’s edition of Devoxx Poland, which was held from June 20 to 22 in Kraków. Devoxx is the biggest Java conference in Poland and is a great

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Configuring builds for application servers with maven profiles

Introduction Maven profiles are not the most commonly used feature and there is relatively little information on how to use them in practice. They can be used to differentiate builds of the same application; virtually every element specified in one’s pom.xml

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How to prepare training files for Tesseract OCR and improve characters recognition?

Over the last few years, optical character recognition (OCR) has become very popular. You can find various OCR engines which help you with the OCR process but you should consider Tesseract to build your own OCR application. It is a very powerful tool and it’s

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Deploying multiple spring boot applications to a single application server

Spring boot is great framework to easily create applications with production-ready features such as metrics, health checks and externalized configuration. You can create stand-alone applications with embedded servlet container or you can deploy application traditionally to application server. Unfortunately spring boot

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#WEBSUMMIT Inspirations

During the early days of November ’15 we had the opportunity to attend to one of the largest conferences in Europe devoted to Startups / New Ideas / Technology – Websummit in Dublin, Ireland. As self proclaimed on the http://Websummit.net – “The

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GeeCON Prague 2015 – review

GeeCON – what is it? On 22-23 October 2015 I attended to GeeCON conference in Prague. It was second edition in Prague, but it was my first time on GeeCON. „GeeCON is a conference focused on Java and Java Virtual Machine

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How to deploy and run a Spring Boot application on Jetty

With the help of Maven, Spring Boot provides means to run a web application on several embedded servers. It is still spring, so deploying to an existing environment is also possible.  Unfortunately, running a Spring Boot application on Jetty server requires some

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Apache Solr: How to efficiently index large amounts of data?

Apache Solr provides means to search through indexed resources extremely quickly. The indexing process itself, however, can take a lot of time. When one googles “solr indexing efficiency” or “solr efficient indexing” one can find a lot of information on RAM

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Advanced faceted search in SQL database using MyBatis

Faceted search is popular technique used in online retailers. Users can search for product using multiple filters, called facets, narrowing result list in each step. In addition to that, filters can show number of products matching each facets for selected conditions.

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