Auto-Config is an easy, lightweight and simple to use way to create object-related configurations in many different formats. It is meant to be used with the dependency framework guice by google but also supports standalone usage.
Auto-Config supports at the time the following configuration formats:
| Format | Implemented with |
|---|---|
| JSON | Gson |
| Yaml | In Development |
ExampleConfiguration:
@Singleton //Used to mark this class as a Singleton for Guice.
@Configuration(path = "example.json", type = JsonConfigurationType.class)
public class ExampleConfig extends ConfigurationAccessor {
private final transient Injector injector; //Any type of dependency injection is possible here.
private transient String test; //transient fields will be ignored
private String name;
@Inject
private ExampleConfig(Injector injector) {
this.injector = injector;
}
public void loadDefaults() {
name = "Jan Brachthäuser";
test = "Test";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}Usage:
public class GuiceTest {
private final ExampleConfig exampleConfig;
@Inject
public GuiceTest(ExampleConfig exampleConfig) {
System.out.println(exampleConfiguration.getName()); //Will return 'Jan Brachthäuser' by default.
exampleConfiguration.setName("Melvin");
exampleConfiguration.save(); //Will save the configuration in the given format to the file specified in @Configuration.
System.out.println(exampleConfiguration.getName()); //Will return 'Melvin' now.
}
public static void main(String[] args) {
Guice.createInjector().getInstance(GuiceTest.class);
}
}ExampleConfiguration:
@Configuration(path = "example.json", type = JsonConfigurationType.class)
public class ExampleConfig extends ConfigurationAccessor {
private transient String test; //transient fields will be ignored
private String name;
public void loadDefaults() {
name = "Jan Brachthäuser";
test = "Test";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}Usage:
public final class NoGuiceTest {
private ExampleConfig exampleConfiguration;
private NoGuiceTest() {
this.exampleConfiguration = new ExampleConfig();
this.init();
}
private void init() {
System.out.println(exampleConfiguration.getName()); //Will return 'Jan Brachthäuser' by default.
exampleConfiguration.setName("Melvin");
exampleConfiguration.save(); //Will save the configuration in the given format to the file specified in @Configuration.
System.out.println(exampleConfiguration.getName()); //Will return 'Melvin' now.
}
public static void main(String[] args) {
new NoGuiceTest();
}
}
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