You're reading from Hands-On Enterprise Java Microservices with Eclipse MicroProfile

Product typeBook

Published inAug 2019

Reading LevelExpert

PublisherPackt

ISBN-139781838643102

Edition1st Edition

Languages

Java

Tools

Microprofile

Concepts

Microservices

Authors (6):

Cesar Saavedra

Heiko W. Rupp

Jeff Mesnil

Pavol Loffay

Antoine Sabot-Durand

Scott Stark

View More author details

Introduction to Eclipse MicroProfile

Eclipse MicroProfile is a set of specifications for microservices written in the Java language. It is a project that is community-driven with many implementations in the market. The project, first announced in June 2016, continues to develop a set of common Application Programming Interfaces (APIs) for implementing Java microservices suitable for modern application development techniques, architectures, and environments. In this chapter, you will learn about the origin and importance of Eclipse MicroProfile.

The following topics will be covered in this chapter:

Enterprise Java microservices
Forces that fuel the digital economy and the need for multi-speed IT
Introducing Eclipse MicroProfile
MicroProfile value proposition

Enterprise Java microservices

Application development no longer consists of using a single high-level programming language that runs on your favorite operating system. Nowadays, there are a myriad of languages, specifications, frameworks, proprietary and open source software and tools, underlying deployment infrastructures, and development methodologies that programmers need to learn to develop modern applications. Development at IT organizations has become polyglot, that is, multiple programming languages are used depending on the needs of specific projects. In this age of the cloud, containers, microservices, reactive programming, 12-factor applications, serverless, MINI services, polyglot environments, and so on, developers now have the option to choose the right tool for their task, making them more effective and productive.

With the recent move of Java EE to the Eclipse...

Forces that fuel the digital economy

The terms digital economy and digital transformation describe the convergence of four different forces that are changing the needs of businesses: mobile, cloud, IoT, and open source:

Before the internet, organizations required brick-and-mortar stores or phone lines to conduct their businesses. The advent and accessibility of the internet created a critical category-formation time opportunity for organizations. Businesses started to use the internet mainly as a storefront or display in order to drive people to their brick-and-mortar stores. It was also used for advertising purposes.

Soon after this, businesses began adding the ability to purchase things online, and companies, such as Amazon, realized that they could capitalize on the economies-of-scale, product aggregation, consolidation, recommendation, and pricing optimization that an online...

Introducing Eclipse MicroProfile

Java EE has been an extremely successful platform. The Java Community Process (JCP) has been the steward of over 20 compatible implementations during its nearly 20-year history, resulting in a $4 billion industry. However, the management of Java EE by Oracle (unintentional or not) of Java EE (unintentional or not) stalled innovations, and while other standards have developed, the Java community worldwide and CIOs at all major enterprises desired an open standard for Java within their enterprise.

In its early stages, J2EE grew somewhat quickly from J2EE 1.2 up to J2EE 1.4, as the platform needed to address the immediate requirements of the enterprise. Beginning with Java EE 5 in May 2006, the pace began to slow down as the platform began to mature, and it was 3 years and 6 months between releases. After Java EE 7, which was released on June 12...

MicroProfile value proposition

For customers who trust Enterprise Java to run their production workloads, Eclipse MicroProfile provides customers with a vendor-neutral specification for Enterprise Java microservices. Eclipse MicroProfile enables them to better fulfill the needs of the business via improved agility and scalability, faster time-to-market, higher development productivity, easier debugging and maintenance, and continuous integration and continuous deployment.

The benefits customers get by using Eclipse MicroProfile are the same benefits gained by using microservices. In general, according to Martin Fowler, a respected software developer, author, and speaker, microservices provide the following benefits (https://martinfowler.com/articles/microservice-trade-offs.html):

Strong module boundaries: Microservices reinforce modular structure, which is particularly important...

Summary

In this chapter, we have discussed the new trends in software development, consisting of polyglot deployments using new approaches, such as microservices, containers, mobile, and Internet-of-Things (IoT) running on-premises and in the cloud; and in hybrid or multi-cloud environments. These trends required the evolution of Enterprise Java in the microservices world, which is what MicroProfile addresses. The four forces that fuel the digital economy, namely, cloud, mobile, IoT, and open source, have contributed to the need for organizations to have multi-speed IT departments, which are necessary to maintain and evolve their existing applications as well as to take advantage of new technological trends to develop new applications that can help them to remain competitive.

Eclipse MicroProfile, a vendor-neutral specification founded by the community for the community, is one...

Questions

What is an Enterprise Java microservice?
What are the four forces that fuel the digital economy?
Why are IT organizations having to develop and maintain applications at different speeds? What is multi-speed IT?
Why are Java and Java EE still important to organizations?
What was one of the key reasons that caused MicroProfile to come into existence?
What are the APIs/specifications that are part of the MicroProfile umbrella/platform release?
What release of MicroProfile introduced the first revolutionary changes?
Why is MicroProfile valuable to organizations?

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Authors (6)

Cesar Saavedra

Cesar Saavedra has been working in the IT industry since 1990 and holds a Master of Science degree in Computer Science and a Master of Business Administration. He has worked as a developer, consultant, technical seller, and technical marketer throughout his career. He currently does technical product marketing for Red Hat JBoss Enterprise Application Platform (EAP), Eclipse MicroProfile, OpenJDK, Quarkus and Jakarta EE. He also manages the technical marketing for the runtimes, integration, BPM and rules management portfolio, and works closely with engineering and product management on thought leadership. Cesar has authored white papers, eBooks, and blogposts, and has been a conference and webinar speaker presenting to customers and partners.
Read more about Cesar Saavedra

Heiko W. Rupp

Heiko W. Rupp is an open source enthusiast working for more than a decade at Red Hat in the area of middleware monitoring and management. In this role he has been project lead of the RHQ and Hawkular monitoring systems and has also been contributing to various other projects like Kiali. Currently he helps defining the next way of Java Microservices with his work on Eclipse MicroProfile. As such he is the spec lead of the Eclipse MicroProfile Metrics effort and also contributing to other specifications. Heiko has written the first German book about JBossAS and one of the first German books on EJB3. He lives with his family in Stuttgart, Germany.
Read more about Heiko W. Rupp

Jeff Mesnil

Jeff Mesnil is employed by Red Hat as a Senior Software Engineer and currently, works for JBoss, Red Hat's middleware division, on the WildFly and JBoss EAP application servers. He is a member of the core team in charge of developing the internals of the application servers and lead its messaging subsystem (which provides the JMS API). Previously, he contributed to the HornetQ messaging broker that was integrated into WildFly and EAP. He is a proponent of Open Source development and all the code he writes either professionally or privately is available under Open Source licenses, these days, it is mostly hosted on GitHub. He has a keen interest on messaging systems and wrote several Open Source libraries related to messaging.
Read more about Jeff Mesnil

Pavol Loffay

Pavol Loffay is Senior Software Engineer at Red Hat. Pavol is working on observability tools for microservice architectures. He is mostly involved in the tracing domain, where he is an active committer on the Jaeger and OpenTracing projects. He is also a member of the OpenTracing Specification Council (OTSC) and a lead for the MicroProfile-OpenTracing specification. He has authored many blog posts and presented at several conferences. In his free time, Pavol likes to climb mountains and ski steep slopes in the Alps.
Read more about Pavol Loffay

Antoine Sabot-Durand

Antoine Sabot-Durand is a Java Champion who works for Red Hat where he leads the Java EE, now Jakarta EE CDI spec. He is also involved in various projects linked to the CDI ecosystem, MicroProfile, and Jakarta EE. He is also Member of Devoxx France committee. He lives in France with his wife and 3 kids.
Read more about Antoine Sabot-Durand

Scott Stark

Scott Stark started in chemical engineering, got steered into parallel computers as part of his Ph.D. work, and then made software his career, starting with a stint in finance/wall street. He then got into open source with the fledgling JBoss company, working on the application server and Java EE. He has worked with microkernel efforts, IoT efforts, standards, Jakarta EE, Eclipse MicroProfile and Quarkus. He lives in the Pacific Northwest with his wife.
Read more about Scott Stark

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