///usr/bin/env jbang "$0" "$@" ; exit $? //DEPS net.java.dev.jna:jna:5.19.0 /** * java_usage.java — Example of using libthaiidcard from Java via JNA. * * Usage: * # Build the shared library first: * make shared * * # Run with jbang (auto-downloads JNA, no manual setup): * jbang examples/java_usage.java [reader_name] * * # Or compile & run manually (download jna.jar first): * javac -cp jna.jar examples/java_usage.java * java -cp .:jna.jar java_usage [reader_name] * * JNA download: https://github.com/java-native-access/jna#download */ import com.sun.jna.Library; import com.sun.jna.Native; import com.sun.jna.Pointer; import java.io.File; public class java_usage { // ----------------------------------------------------------------------- // JNA binding to the C API // ----------------------------------------------------------------------- public interface ThaiIdCard extends Library { Pointer thaiid_read(String reader, int face, int nhso, int laser); void thaiid_free(Pointer data); String thaiid_get_last_error(); String thaiid_get_cid(Pointer data); String thaiid_get_name_thai(Pointer data); String thaiid_get_name_en(Pointer data); String thaiid_get_dob(Pointer data); String thaiid_get_gender(Pointer data); String thaiid_get_card_issuer(Pointer data); String thaiid_get_issue_date(Pointer data); String thaiid_get_expire_date(Pointer data); String thaiid_get_address(Pointer data); String thaiid_get_face_image(Pointer data); String thaiid_get_laser_id(Pointer data); String thaiid_get_main_inscl(Pointer data); String thaiid_get_sub_inscl(Pointer data); String thaiid_get_main_hospital(Pointer data); String thaiid_get_sub_hospital(Pointer data); String thaiid_get_paid_type(Pointer data); String thaiid_get_nhso_issue_date(Pointer data); String thaiid_get_nhso_expire_date(Pointer data); String thaiid_get_nhso_update_date(Pointer data); String thaiid_get_change_hospital_amount(Pointer data); } // ----------------------------------------------------------------------- // Library discovery // ----------------------------------------------------------------------- private static String findLibrary() { String os = System.getProperty("os.name").toLowerCase(); String libName; if (os.contains("win")) { libName = "thaiidcard.dll"; } else if (os.contains("mac")) { libName = "libthaiidcard.dylib"; } else { libName = "libthaiidcard.so"; } // Derive project root: this class is at examples/java_usage.java String classPath = new File("examples/java_usage.java").getAbsolutePath(); String projectRoot = new File(classPath).getParentFile().getParent(); String[][] dirs = { { projectRoot + "/target/debug/", libName }, { projectRoot + "/target/release/", libName }, // System paths per platform }; // Platform-specific system paths String[] sysDirs; if (os.contains("mac")) { sysDirs = new String[]{ "/usr/local/lib/", "/opt/homebrew/lib/" }; } else if (os.contains("win")) { String sysRoot = System.getenv("SYSTEMROOT"); if (sysRoot == null) sysRoot = "C:\\Windows"; String pf = System.getenv("PROGRAMFILES"); if (pf == null) pf = "C:\\Program Files"; sysDirs = new String[]{ sysRoot + "\\System32\\", pf + "\\thaiidcard\\bin\\" }; } else { sysDirs = new String[]{ "/usr/local/lib/", "/usr/lib/", "/usr/lib/x86_64-linux-gnu/", "/usr/lib/aarch64-linux-gnu/" }; } for (String dir : sysDirs) { String path = dir + libName; if (new File(path).exists()) { return path; } } // Development build paths for (String[] pair : dirs) { String path = pair[0] + pair[1]; if (new File(path).exists()) { return path; } } // Fallback: let JNA search system library paths return libName; } // ----------------------------------------------------------------------- // Read card data // ----------------------------------------------------------------------- private static Pointer readCard(ThaiIdCard lib, String reader, boolean showFace, boolean showNhso, boolean showLaser) { Pointer handle = lib.thaiid_read(reader, showFace ? 1 : 0, showNhso ? 1 : 0, showLaser ? 1 : 0); if (handle == null) { String err = lib.thaiid_get_last_error(); throw new RuntimeException(err != null ? err : "Unknown error"); } return handle; } // ----------------------------------------------------------------------- // Pretty-print // ----------------------------------------------------------------------- private static String safe(String s) { return s != null ? s : ""; } private static void printCard(ThaiIdCard lib, Pointer data) { String face = safe(lib.thaiid_get_face_image(data)); String laser = safe(lib.thaiid_get_laser_id(data)); String inscl = safe(lib.thaiid_get_main_inscl(data)); System.out.println("\n=== Personal Information ==="); System.out.printf(" %-20s %s%n", "CID:", safe(lib.thaiid_get_cid(data))); System.out.printf(" %-20s %s%n", "Name (TH):", safe(lib.thaiid_get_name_thai(data))); System.out.printf(" %-20s %s%n", "Name (EN):", safe(lib.thaiid_get_name_en(data))); System.out.printf(" %-20s %s%n", "DOB:", safe(lib.thaiid_get_dob(data))); System.out.printf(" %-20s %s%n", "Gender:", safe(lib.thaiid_get_gender(data))); System.out.printf(" %-20s %s%n", "Card Issuer:", safe(lib.thaiid_get_card_issuer(data))); System.out.printf(" %-20s %s%n", "Issue Date:", safe(lib.thaiid_get_issue_date(data))); System.out.printf(" %-20s %s%n", "Expire Date:", safe(lib.thaiid_get_expire_date(data))); System.out.printf(" %-20s %s%n", "Address:", safe(lib.thaiid_get_address(data))); if (!face.isEmpty()) { System.out.printf(" %-20s [%d bytes base64]%n", "Face Image:", face.length()); } if (!laser.isEmpty()) { System.out.println("\n=== Card Info ==="); System.out.printf(" %-20s %s%n", "Laser ID:", laser); } if (!inscl.isEmpty()) { System.out.println("\n=== NHSO Information ==="); System.out.printf(" %-20s %s%n", "Main Inscl:", safe(lib.thaiid_get_main_inscl(data))); System.out.printf(" %-20s %s%n", "Sub Inscl:", safe(lib.thaiid_get_sub_inscl(data))); System.out.printf(" %-20s %s%n", "Main Hosp:", safe(lib.thaiid_get_main_hospital(data))); System.out.printf(" %-20s %s%n", "Sub Hosp:", safe(lib.thaiid_get_sub_hospital(data))); System.out.printf(" %-20s %s%n", "Paid Type:", safe(lib.thaiid_get_paid_type(data))); System.out.printf(" %-20s %s%n", "NHSO Issue:", safe(lib.thaiid_get_nhso_issue_date(data))); System.out.printf(" %-20s %s%n", "NHSO Expire:", safe(lib.thaiid_get_nhso_expire_date(data))); System.out.printf(" %-20s %s%n", "NHSO Update:", safe(lib.thaiid_get_nhso_update_date(data))); System.out.printf(" %-20s %s%n", "Change Hosp:", safe(lib.thaiid_get_change_hospital_amount(data))); } } // ----------------------------------------------------------------------- // Main // ----------------------------------------------------------------------- public static void main(String[] args) { String reader = args.length > 0 ? args[0] : null; String libPath = findLibrary(); System.out.println("Using library: " + libPath); System.out.println("Reader: " + (reader != null ? reader : "(auto-detect)")); System.out.println("Waiting for card..."); try { ThaiIdCard lib = Native.load(libPath, ThaiIdCard.class); Pointer data = readCard(lib, reader, true, true, false); try { printCard(lib, data); System.out.println("\nDone."); } finally { lib.thaiid_free(data); } } catch (Exception e) { System.err.println("Error: " + e.getMessage()); System.exit(1); } } }