Blog
Dmitriy Pavlenko
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Key points a business should consider before outsourcing software development
The business enterprise can never be successful without you, a business owner. It’s impossible to exclude yourself from the process, delegate the key business decisions, and expect good results. To make software a part of your business,…
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Creating a custom website or a theme with Grain
Grain theme is a project that provides a layout-based skeleton for creating static websites by only adjusting the configuration and adding a content. This post shows how to use the theme template in order to create a…
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Changing the Grails project configuration from within a plugin
This code snippet shows how to update project configuration settings from a Grails plugin executable script. The script changes the configuration by copying the settings from a default config file, placed in the plugin’s folder, to the…
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Groovy for Java developer: learning Groovy-specific features
Groovy is an object oriented dynamic language for the JVM. Dynamically compiled to a bytecode and interoperable with most Java libraries, Groovy is a perfect candidate for writing lightweight scripts that still can benefit from the Java…
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Creating custom GSP tags and tag libraries in Grails
Grails tag libraries are designed to provide content formatting capabilities right on a GSP page. The ‘tag’ is an action that can be declared in a form of an HTML element. This action can accept an enclosed…
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Grails Unit Testing: covering domain classes and services
Unit testing in Grails is currently implemented with Grails Testing plugin. The plugin provides unit testing facilities through the GrailsUnitTestCase class which offers a lot of useful methods for mocking Grails-specific objects. This post demonstrates how some…
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Synchronizing threads with Java locks
Java locks often supersede synchronized blocks and methods by allowing to back out from the synchronization attempt. This post shows how to use the feature, and demonstrates some other basic concepts, like the lock fairness and reentrant…
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Building ESME with Logica OpenSMPP Java library
Short Message Peer to Peer (SMPP) is an open, telecommunications industry protocol for exchanging text messages (SMS) between short message service centers (SMSC) and External Short Messaging Entities (ESMEs). The protocol is often used for connecting to…
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API Enhancements in Java SE 7
Recently released Java 7 has a lot of useful API enhancements such as the automatic resource management, multi-catch statements, switch statement with strings, binary literals and improved numeric literals. This post is a quick roundup of the…
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MongoDB java driver. The custom builder for update operations.
Java driver for MongoDB does not provide any utility classes that could help with building update queries. If you want to create a query to update or increment field values, you usually have to use BasicDBObjectBuilder. This…
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How to intercept and log stdout and stderr messages with log4j
Log4j doesn’t allow to catch stdout and stderr messages out of the box. However, you can still intercept them with a custom output stream, which is especially useful when you have to log data that third-party libraries…
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