ConfigDataNotFoundFailureAnalyzer Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataNotFoundFailureAnalyzer.java lines 32–63

class ConfigDataNotFoundFailureAnalyzer extends AbstractFailureAnalyzer<ConfigDataNotFoundException> {

	@Override
	protected FailureAnalysis analyze(Throwable rootFailure, ConfigDataNotFoundException cause) {
		ConfigDataLocation location = getLocation(cause);
		Origin origin = Origin.from(location);
		String message = String.format("Config data %s does not exist", cause.getReferenceDescription());
		StringBuilder action = new StringBuilder("Check that the value ");
		if (location != null) {
			action.append(String.format("'%s' ", location));
		}
		if (origin != null) {
			action.append(String.format("at %s ", origin));
		}
		action.append("is correct");
		if (location != null && !location.isOptional()) {
			action.append(String.format(", or prefix it with '%s'", ConfigDataLocation.OPTIONAL_PREFIX));
		}
		return new FailureAnalysis(message, action.toString(), cause);
	}

	private @Nullable ConfigDataLocation getLocation(ConfigDataNotFoundException cause) {
		if (cause instanceof ConfigDataLocationNotFoundException locationNotFoundException) {
			return locationNotFoundException.getLocation();
		}
		if (cause instanceof ConfigDataResourceNotFoundException resourceNotFoundException) {
			return resourceNotFoundException.getLocation();
		}
		return null;
	}

}