public void scan()

in meecrowave-core/src/main/java/org/apache/meecrowave/tomcat/OWBJarScanner.java [45:89]
42 lines of code
12 McCabe index (conditional complexity)

    public void scan(final JarScanType jarScanType, final ServletContext servletContext, final JarScannerCallback callback) {
        switch (jarScanType) {
            case PLUGGABILITY:
                final WebBeansContext owb = WebBeansContext.getInstance();
                final ScannerService scannerService = owb.getScannerService();
                if (!WebScannerService.class.isInstance(scannerService)) {
                    return;
                }
                final OwbAnnotationFinder finder = WebScannerService.class.cast(scannerService).getFinder();
                if (finder == null) {
                    return;
                }
                CdiArchive.class.cast(finder.getArchive())
                        .classesByUrl().keySet().stream()
                        .filter(u -> !"jar:file://!/".equals(u)) // not a fake in memory url
                        .forEach(u -> {
                            try {
                                final URL url = new URL(u);
                                final File asFile = Files.toFile(url);
                                if (!asFile.exists()) {
                                    return;
                                }
                                if (filter != null && !filter.check(jarScanType, asFile.getName())) {
                                    return;
                                }

                                if (asFile.getName().endsWith(Constants.JAR_EXT)) {
                                    try (final Jar jar = JarFactory.newInstance(asFile.toURI().toURL())) {
                                        callback.scan(jar, u, true);
                                    }
                                } else if (asFile.isDirectory()) {
                                    callback.scan(asFile, asFile.getAbsolutePath(), true);
                                }
                            } catch (final MalformedURLException e) {
                                // skip
                            } catch (final IOException ioe) {
                                throw new IllegalArgumentException(ioe);
                            }
                        });
                return;

            case TLD:
            default:
        }
    }