Posts Tagged ‘java’

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Apache Sling JVM Performance Followup

In a comment on my previous post Apache Sling JVM Performance, Gil Tene made an insightful comment about the potential possibility of performance impact from speed from the underlying environment or other tests. To accommodate for this possibility, I re-ran the tests inside a loop, randomizing order of the JVM execution for each iteration 25 times. […]

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Apache Sling JVM Performance Comparison

With the recent proliferation of Java Virtual Machine (JVM) implementations, it’s difficult to know which implementation is the best for your use case. While proprietary vendors generally prefer Oracle Java, there are several open source options with different approaches and capabilities.  Given how the implementations vary in some underlying technical specifics, the “correct” JVM implementation […]

change management

Three Reasons to Work on Cloud Platform Services at Perficient

Perficient is a global consulting company that provides consulting services for digital transformation. Within the cloud computing space, our core competencies are in strategic planning, workload modernization and migration, pipeline automation, and big data. What Does the Cloud Team at Perficient Do? “Our team helps clients leverage cloud technologies from strategic planning through implementation for […]

Java 11

Lucky #11: Sling 11 and Java 11 Support

The Apache Sling project just released the latest version of the Apache Sling Starter, version 11. This artifact is an aggregator of the modules making up Apache Sling and is used by many downstream applications as a basis for the “stable” version of the Apache Sling codebase.

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Resource Streams in Apache Sling

Jörg Hoh recently wrote an interesting post on Content Architecture where he discussed how expensive JCR Queries could instead be replaced with targeted content structure traversals to allow finding relevant content without searching the whole AEM repository. Unfortunately, from a developer perspective, this means writing a fair amount of boilerplate code to traverse the AEM […]

Microservices Using Java, Docker & Cloud Containers

This post describes some of the common considerations for developing microservices in Java and deploying the microservice on cloud containers offered by Google cloud (GCP), Amazon Web Services (AWS) and IBM cloud. 1.    Microservices Considerations a.     Organizational Considerations Organizations need to consider cultural changes that needed to support Micro-services ownership i.e. principle of product and […]

Less is More: Write Clean Elegant Codes in AEM

A clean, elegant code base goes a long way. It helps developers read and modify the code, sets a good foundation for future development, reduces technical debts and maintenance overhead, makes code easier to unit test, follows best practices, and much more. This still holds true in the Adobe Experience Manager (AEM) world. However, many […]

Concurrency

2 Common Concurrency Pitfalls in AEM and How to Avoid Them

Concurrency issues are both disastrous and difficult to detect in non-production loads. They are more difficult to reproduce than most bugs because they specifically rely on multiple operations happening at/around the same time, which is difficult to reproduce in a development or local environment. Since concurrency bugs are hard to find and diagnose, we should […]

Setup and Basic Preparation for Sitecore 9 Installation

Sitecore 9 is out we are all excited to jump in and start using the latest and greatest. So let’s jump in and setup for an XP0 Sitecore installation on our local development machine! George Chang, another Perficient Sitecore MVP, put out a great blog post on How to install Sitecore 9 with the Sitecore Install Framework […]

Design and Build Your Own Restful API with Swagger

Though APIs have been used for decades, they are turning into the Micro level to fit more frequent changes and decoupling requirements. In recent years, one thing that we have been seeing is a transition from monolithic applications to microservice‑oriented architecture. Out of several API designing and building tools, we would talk about one of […]

Java SE 9 Discovery

Eventually the Java Standard Edition 9 was released along with J2EE 8 after a long wait. This news is not overwhelming in the media report like other exciting technologies of artificial intelligence, cloud etc. However, per the recent programming language ranking report, Java is still one of the most popular languages. In http://statisticstimes.com, for both […]

How to Query Hive Data in HDP via Java Code

What is Hive? You may have heard about Data Warehousing products such as Oracle, Teradata Netezza which have been used in different industries for decades. Recently, Hive emerged as a new generation of the open-source data warehouse product which features clustered nodes in the big data domain. It facilitates reading, writing, and managing super large […]

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