private static Map reload()

in microprofile-extensions/microprofile-extensions-config/docker-configsource/src/main/java/org/apache/geronimo/microprofile/extensions/config/docker/DockerConfigConfigSource.java [55:80]

• 25 lines of code
• 5 McCabe index (conditional complexity)

    private static Map<String, String> reload(final String base, final String... prefixes) {
        final Path from = Paths.get(base);
        if (!Files.exists(from)) {
            return emptyMap();
        }
        final Predicate<Path> matches =
                // if no prefix ensure it is not default unix folders or not supported config files
                prefixes.length == 0
                        ? path -> !Files.isDirectory(path) && Stream
                                .of(".xml", ".properties", ".yml", ".yaml", ".so", ".json", ".old", ".img", "vmlinuz",
                                        "core")
                                .noneMatch(ext -> path.getFileName().toString().endsWith(ext))
                        : path -> Stream
                                .of(prefixes)
                                .anyMatch(prefix -> path.getFileName().toString().startsWith(prefix));
        try {
            return Files
                    .list(from)
                    .filter(matches)
                    .map(path -> new AbstractMap.SimpleEntry<>(path.getFileName().toString(), read(path)))
                    .filter(e -> e.getValue() != null)
                    .collect(toMap(Map.Entry::getKey, Map.Entry::getValue));
        } catch (final IOException e) {
            throw new IllegalStateException(e);
        }
    }