SpringPropertyModelHandler Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/logging/logback/SpringPropertyModelHandler.java lines 43–73

class SpringPropertyModelHandler extends ModelHandlerBase {

	private final @Nullable Environment environment;

	SpringPropertyModelHandler(Context context, @Nullable Environment environment) {
		super(context);
		this.environment = environment;
	}

	@Override
	public void handle(ModelInterpretationContext intercon, Model model) throws ModelHandlerException {
		SpringPropertyModel propertyModel = (SpringPropertyModel) model;
		Scope scope = ActionUtil.stringToScope(propertyModel.getScope());
		String defaultValue = propertyModel.getDefaultValue();
		String source = propertyModel.getSource();
		if (OptionHelper.isNullOrEmpty(propertyModel.getName()) || OptionHelper.isNullOrEmpty(source)) {
			addError("The \"name\" and \"source\" attributes of <springProperty> must be set");
		}
		PropertyModelHandlerHelper.setProperty(intercon, propertyModel.getName(), getValue(source, defaultValue),
				scope);
	}

	private String getValue(String source, String defaultValue) {
		if (this.environment == null) {
			addWarn("No Spring Environment available to resolve " + source);
			return defaultValue;
		}
		return this.environment.getProperty(source, defaultValue);
	}

}