* Add Health Check pattern implementation The commit introduces Health Check pattern, providing a series of health indicators for system performance and stability monitoring, including checks for system CPU load, process CPU load, database health, memory usage, and garbage collection metrics. It also includes asynchronous execution and caching mechanisms for health checks, and retry configurations for resilience. Implements health checking components as per issue #2695. * Test cases and javadoc for HealthEndpointIntegrationTest * Added more log to test case to see why it returns 503 * Change config values to see if the system High system CPU load is resolved or not in CI. * Fixes for test cases. * some fixes for Sonar. * some fixes for Sonar. ADDED HIGH_PROCESS_CPU_LOAD_MESSAGE_WITHOUT_PARAM ADDED HIGH_SYSTEM_CPU_LOAD_MESSAGE_WITHOUT_PARAM * Sonar fixes address "Define and throw a dedicated exception instead of using a generic one." added HealthCheckInterruptedException refactored CustomHealthIndicator * fixes checkstyle violation.
Design patterns implemented in Java
Read in different language : zh, ko, fr, tr, ar, es, pt, id, ru, de, ja, vi, bn, np, it, da
Introduction
Design patterns are the best, formalized practices a programmer can use to solve common problems when designing an application or system.
Design patterns can speed up the development process by providing tested, proven development paradigms.
Reusing design patterns help prevent subtle issues that cause major problems, and it also improves code readability for coders and architects who are familiar with the patterns.
Getting started
This site showcases Java Design Patterns. The solutions have been developed by experienced programmers and architects from the open-source community. The patterns can be browsed by their high-level descriptions or by looking at their source code. The source code examples are well commented and can be thought of as programming tutorials on how to implement a specific pattern. We use the most popular battle-proven open-source Java technologies.
Before you dive into the material, you should be familiar with various Software Design Principles.
All designs should be as simple as possible. You should start with KISS, YAGNI, and Do The Simplest Thing That Could Possibly Work principles. Complexity and patterns should only be introduced when they are needed for practical extensibility.
Once you are familiar with these concepts you can start drilling down into the available design patterns by any of the following approaches
- Search for a specific pattern by name. Can't find one? Please report a new pattern here.
- Using tags such as
Performance,Gang of FourorData access. - Using pattern categories,
Creational,Behavioral, and others.
Hopefully, you find the object-oriented solutions presented on this site useful in your architectures and have as much fun learning them as we had while developing them.
How to contribute
If you are willing to contribute to the project you will find the relevant information in our developer wiki. We will help you and answer your questions in the Gitter chatroom.
License
This project is licensed under the terms of the MIT license.