- The default sources of configuration properties are environment variables, Java system properties, and the META-INF/microprofile-config.properties file.
- You can provide a custom ConfigSource implementation that maps property names to values in the custom source.
- Strings are not the only supported types, as MP-Config supports type conversion via a pluggable SPI, and provides several default conversions by default.
- You do not need to provide a value for an injected property if you have given a defaultValue, or have injected the property as an Optional<?> value.
- Complex property types can be handled using a custom Converter<?> implementation that takes a string and returns the complex type.
- When an annotation is specified at the class level, it applies to all methods of the class.
- False: there are currently six MP-FT policies.
- No: we can configure @Retry to...
Hands-On Enterprise Java Microservices with Eclipse MicroProfile
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Hands-On Enterprise Java Microservices with Eclipse MicroProfile
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Overview of this book
Eclipse MicroProfile has gained momentum in the industry as a multi-vendor, interoperable, community-driven specification. It is a major disruptor that allows organizations with large investments in enterprise Java to move to microservices without spending a lot on retraining their workforce.
This book is based on MicroProfile 2.2, however, it will guide you in running your applications in MicroProfile 3.0. You'll start by understanding why microservices are important in the digital economy and how MicroProfile addresses the need for enterprise Java microservices. You'll learn about the subprojects that make up a MicroProfile, its value proposition to organizations and developers, and its processes and governance. As you advance, the book takes you through the capabilities and code examples of MicroProfile’s subprojects - Config, Fault Tolerance, Health Check, JWT Propagation, Metrics, and OpenTracing. Finally, you’ll be guided in developing a conference application using Eclipse MicroProfile, and explore possible scenarios of what’s next in MicroProfile with Jakarta EE.
By the end of this book, you'll have gained a clear understanding of Eclipse MicroProfile and its role in enterprise Java microservices.
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Hands-On Enterprise Java Microservices with Eclipse MicroProfile
Table of Contents (18 chapters)
Preface
Free Chapter
Section 1: MicroProfile in the Digital Economy
Introduction to Eclipse MicroProfile
Governance and Contributions
Section 2: MicroProfile's Current Capabilities
MicroProfile Config and Fault Tolerance
MicroProfile Health Check and JWT Propagation
MicroProfile Metrics and OpenTracing
MicroProfile OpenAPI and Type-Safe REST Client
Section 3: MicroProfile Implementations and Roadmap
MicroProfile Implementations, Quarkus, and Interoperability via the Conference Application
Section 4: A Working MicroProfile Example
A Working Eclipse MicroProfile Code Sample
Section 5: A Peek into the Future
Reactive Programming and Future Developments
Using MicroProfile in Multi-Cloud Environments
Assessments
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Customer Reviews