static Set ofDescriptorFilesAndFileMatchers()

in log4j-docgen-maven-plugin/src/main/java/org/apache/logging/log4j/docgen/maven/PluginSets.java [31:60]

24 lines of code
6 McCabe index (conditional complexity)


    static Set<PluginSet> ofDescriptorFilesAndFileMatchers(
            @Nullable final File[] descriptorFiles, @Nullable final PathMatcherMojo[] descriptorFileMatchers) {

        // Check arguments
        final File[] effectiveDescriptorFiles = descriptorFiles != null ? descriptorFiles : new File[0];
        final PathMatcherMojo[] effectiveDescriptorFileMatchers =
                descriptorFileMatchers != null ? descriptorFileMatchers : new PathMatcherMojo[0];
        if (effectiveDescriptorFiles.length == 0 && effectiveDescriptorFileMatchers.length == 0) {
            throw new IllegalArgumentException(
                    "at least one of the `descriptorFiles` and `descriptorFileMatchers` configurations must be provided");
        }

        // Collect paths
        final Set<Path> foundDescriptorPaths = /* order matters: */ new LinkedHashSet<>();
        Arrays.stream(effectiveDescriptorFiles).map(File::toPath).forEach(foundDescriptorPaths::add);
        Arrays.stream(effectiveDescriptorFileMatchers).forEach(matcher -> matcher.findPaths(foundDescriptorPaths::add));

        // Create plugin sets
        final PluginBundleStaxReader reader = new PluginBundleStaxReader();
        return foundDescriptorPaths.stream()
                .map(descriptorFile -> {
                    try {
                        return reader.read(descriptorFile.toString());
                    } catch (final Exception error) {
                        final String message = String.format("failed reading descriptor file `%s`", descriptorFile);
                        throw new RuntimeException(message, error);
                    }
                })
                .collect(Collectors.toCollection(/* order matters: */ LinkedHashSet::new));
    }