Class MacFirmware

oshi-core/src/main/java/oshi/hardware/platform/mac/MacFirmware.java:45–154

Firmware data obtained from ioreg.

 * Firmware data obtained from ioreg.
 */
@Immutable
final class MacFirmware extends AbstractFirmware {

    private final Supplier<Quintet<String, String, String, String, String>> manufNameDescVersRelease = memoize(
            MacFirmware::queryEfi);

    @Override
    public String getManufacturer() {
        return manufNameDescVersRelease.get().getA();
    }

    @Override
    public String getName() {
        return manufNameDescVersRelease.get().getB();
    }

    @Override
    public String getDescription() {
        return manufNameDescVersRelease.get().getC();
    }

    @Override
    public String getVersion() {
        return manufNameDescVersRelease.get().getD();
    }

    @Override
    public String getReleaseDate() {
        return manufNameDescVersRelease.get().getE();
    }

    private static Quintet<String, String, String, String, String> queryEfi() {
        String manufacturer = null;
        String name = null;
        String description = null;
        String version = null;
        String releaseDate = null;

        IORegistryEntry platformExpert = IOKitUtil.getMatchingService("IOPlatformExpertDevice");
        byte[] data;
        if (platformExpert != null) {
            IOIterator iter = platformExpert.getChildIterator("IODeviceTree");
            if (iter != null) {
                IORegistryEntry entry = iter.next();
                while (entry != null) {
                    switch (entry.getName()) {
                    case "rom":
                        data = entry.getByteArrayProperty("vendor");
                        if (data != null) {
                            manufacturer = Native.toString(data, StandardCharsets.UTF_8);
                        }
                        data = entry.getByteArrayProperty("version");
                        if (data != null) {
                            version = Native.toString(data, StandardCharsets.UTF_8);
                        }
                        data = entry.getByteArrayProperty("release-date");
                        if (data != null) {
                            releaseDate = Native.toString(data, StandardCharsets.UTF_8);