Examples with ModuleFinder java.lang.module.ModuleFinder used on opensource projects

Example 6 with ModuleFinder

use of java.lang.module.ModuleFinder in project Bytecoder by mirkosertic.

the class IllegalAccessMaps method generate.

/**
 * Generate the maps of module to concealed and exported packages for
 * the system modules that are observable with the given module finder.
 */
public static IllegalAccessMaps generate(ModuleFinder finder) {
    Map<String, ModuleDescriptor> map = new HashMap<>();
    finder.findAll().stream().map(ModuleReference::descriptor).forEach(md -> md.packages().forEach(pn -> map.putIfAbsent(pn, md)));
    Map<String, Set<String>> concealedPackagesToOpen = new HashMap<>();
    Map<String, Set<String>> exportedPackagesToOpen = new HashMap<>();
    String rn = "jdk8_packages.dat";
    InputStream in = IllegalAccessMaps.class.getResourceAsStream(rn);
    if (in == null) {
        throw new InternalError(rn + " not found");
    }
    try (BufferedReader br = new BufferedReader(new InputStreamReader(in, UTF_8))) {
        br.lines().filter(line -> !line.isEmpty() && !line.startsWith("#")).forEach(pn -> {
            ModuleDescriptor descriptor = map.get(pn);
            if (descriptor != null && !isOpen(descriptor, pn)) {
                String name = descriptor.name();
                if (isExported(descriptor, pn)) {
                    exportedPackagesToOpen.computeIfAbsent(name, k -> new HashSet<>()).add(pn);
                } else {
                    concealedPackagesToOpen.computeIfAbsent(name, k -> new HashSet<>()).add(pn);
                }
            }
        });
    } catch (IOException ioe) {
        throw new UncheckedIOException(ioe);
    }
    return new IllegalAccessMaps(concealedPackagesToOpen, exportedPackagesToOpen);
}