private static Properties loadClasspathResource()

in junit-platform-launcher/src/main/java/org/junit/platform/launcher/core/LauncherConfigurationParameters.java [191:223]

29 lines of code
4 McCabe index (conditional complexity)


	private static Properties loadClasspathResource(String configFileName) {
		Properties props = new Properties();

		try {
			ClassLoader classLoader = ClassLoaderUtils.getDefaultClassLoader();
			Set<URL> resources = new LinkedHashSet<>(Collections.list(classLoader.getResources(configFileName)));

			if (!resources.isEmpty()) {
				if (resources.size() > 1) {
					logger.warn(() -> String.format(
						"Discovered %d '%s' configuration files in the classpath; only the first will be used.",
						resources.size(), configFileName));
				}

				URL configFileUrl = resources.iterator().next(); // same as List#get(0)
				logger.info(() -> String.format(
					"Loading JUnit Platform configuration parameters from classpath resource [%s].", configFileUrl));
				URLConnection urlConnection = configFileUrl.openConnection();
				urlConnection.setUseCaches(false);
				try (InputStream inputStream = urlConnection.getInputStream()) {
					props.load(inputStream);
				}
			}
		}
		catch (Exception ex) {
			logger.warn(ex,
				() -> String.format(
					"Failed to load JUnit Platform configuration parameters from classpath resource [%s].",
					configFileName));
		}

		return props;
	}