public static void generatePdf()

in src/main/java/org/apache/tomee/website/PDFify.java [40:75]
35 lines of code
5 McCabe index (conditional complexity)

    public static void generatePdf(final File from, final File targetBase) throws IOException {
        final Path sourceBase = from.toPath();
        final Asciidoctor asciidoctor = Asciidoctor.Factory.create();
        final ExecutorService pool = Executors.newFixedThreadPool(16);
        Files.walkFileTree(sourceBase, new SimpleFileVisitor<Path>() {
            @Override
            public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException {
                final String fileName = file.getFileName().toString();
                if (fileName.endsWith(".adoc")) {
                    pool.submit(() -> {
                        final String path = sourceBase.relativize(file).toString();
                        final File target = new File(targetBase, path.substring(0, path.length() - "adoc".length()) + "pdf");
                        final File asFile = file.toFile();
                        final Map<String, Object> attributes = asciidoctor.readDocumentHeader(asFile).getAttributes();
                        // if we generate the PDF link we need to create the PDF excepted if it is expected to be manual
                        if (attributes.containsKey("jbake-tomeepdf") && !attributes.containsKey("jbake-tomeepdf-manual")) {
                            asciidoctor.convertFile(
                                    asFile,
                                    options().docType("article")
                                            .backend
                                            ("pdf")
                                    .attributes(AttributesBuilder.attributes().attribute("source-highlighter", "coderay")).toFile(target).get());
                            System.out.println("Generated " + target);
                        }
                    });
                }
                return super.visitFile(file, attrs);
            }
        });
        pool.shutdown();
        try {
            pool.awaitTermination(1, TimeUnit.HOURS);
        } catch (final InterruptedException e) {
            Thread.interrupted();
        }
    }