Configuration 4 Java

Installation

Gradle

compile 'org.conf4j:conf4j-core:2018.10.1'

Maven

<dependency>
  <groupId>org.conf4j</groupId>
  <artifactId>conf4j-core</artifactId>
  <version>2018.10.1</version>
</dependency>

Usage

Getting Started

1. Add conf4j dependency to your project
2. Build your configuration provider using ConfigurationProviderBuilder
3. Get an instance of your config bean from the configuration provider

public class Main {
  public static void main(String[] args) throws Exception {
    ConsulFileConfigurationSource prodConfigSource = ConsulFileConfigurationSource.builder()
        .withConfigurationFilePath("prod/test-service.conf")
        .withConsulUrl("localhost:8500")
        .reloadOnChange()
        .build();

    ClasspathConfigurationSource fallbackConfigSource = ClasspathConfigurationSource.builder()
        .withResourcePath("fallback.conf")
        .build();

    ConfigurationProvider<TestConfigBean> provider = new ConfigurationProviderBuilder<>(TestConfigBean.class)
        .withConfigurationSource(prodConfigSource)
        .addFallback(fallbackConfigSource)
        .build();

    provider.registerChangeListener((oldConfig, newConfig) -> myListener(newConfig));
    TestConfigBean config = provider.get();
  }
}

Contribution

• Fork
• Code
• ./mvnw test
• Issue a PR :)