ConfigTreeConfigDataLocationResolver Class — spring-boot Architecture

Source Code

core/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigTreeConfigDataLocationResolver.java lines 36–76

public class ConfigTreeConfigDataLocationResolver implements ConfigDataLocationResolver<ConfigTreeConfigDataResource> {

	private static final String PREFIX = "configtree:";

	private final LocationResourceLoader resourceLoader;

	public ConfigTreeConfigDataLocationResolver(ResourceLoader resourceLoader) {
		this.resourceLoader = new LocationResourceLoader(resourceLoader);
	}

	@Override
	public boolean isResolvable(ConfigDataLocationResolverContext context, ConfigDataLocation location) {
		return location.hasPrefix(PREFIX);
	}

	@Override
	public List<ConfigTreeConfigDataResource> resolve(ConfigDataLocationResolverContext context,
			ConfigDataLocation location) {
		try {
			return resolve(location.getNonPrefixedValue(PREFIX));
		}
		catch (IOException ex) {
			throw new ConfigDataLocationNotFoundException(location, ex);
		}
	}

	private List<ConfigTreeConfigDataResource> resolve(String location) throws IOException {
		Assert.state(location.endsWith("/"),
				() -> String.format("Config tree location '%s' must end with '/'", location));
		if (!this.resourceLoader.isPattern(location)) {
			return Collections.singletonList(new ConfigTreeConfigDataResource(location));
		}
		Resource[] resources = this.resourceLoader.getResources(location, ResourceType.DIRECTORY);
		List<ConfigTreeConfigDataResource> resolved = new ArrayList<>(resources.length);
		for (Resource resource : resources) {
			resolved.add(new ConfigTreeConfigDataResource(resource.getFile().toPath()));
		}
		return resolved;
	}

}