Examples of com.verhas.licensor.License

com.verhas.licensor.License

A License object is (key,value) pair set that can be interpreted arbitrary. There is no special meaning how to handle these. The License object however can be electronically signed and saved into a file and loaded and verified.

You can use a License object for two purposes:

Create a new license from pure text properties file, from a string or build it up programmatically and then sign and save it to a file.
Load an encoded license, verify it and then query features.

License files in clear text are simple properties text files. Electronic signature and coding is applied using the format PGP. The library used to handle encryption is BouncyCastle. @author Peter Verhas

  private static PrintStream errorOutput = System.err;


  private void encode() throws Exception {
    try {
      OutputStream os = new FileOutputStream(commandLine.option("output"));
      os.write((new License().setLicense(
          new File(commandLine.option("license-file"))).loadKey(
          commandLine.option("keyring-file"),
          commandLine.option("key")).encodeLicense(commandLine
          .option("password"))).getBytes("utf-8"));
      os.close();

    }
  }


  private void decode() throws Exception {
    try {
      final License license;
      if ((license = new License())
          .loadKeyRing(commandLine.option("keyring-file"), null)
          .setLicenseEncodedFromFile(
              commandLine.option("license-file")).isVerified()) {
        OutputStream os = System.out;
        if (commandLine.optionExists("output")) {
          os = new FileOutputStream(commandLine.option("output"));
        }
        Writer w = null;
        if (commandLine.optionExists("charset")) {
          w = new OutputStreamWriter(os,
              commandLine.option("charset"));
        } else {
          w = new OutputStreamWriter(os);
        }
        w.write("---LICENSE STRING PLAIN TEXT START\n");
        w.flush();
        license.dumpLicense(os);
        os.flush();
        w.write("---LICENSE STRING PLAIN TEXT END\n");
        w.write("Encoding license key id=" + license.getDecodeKeyId()
            + "L\n");
        w.write("---KEY RING DIGEST START\n");
        w.write(license.dumpPublicKeyRingDigest());
        w.write("---KEY RING DIGEST END\n");
        w.close();
        os.close();
      } else {
        errorOutput.println("The license can not be verified.");

Examples of com.verhas.licensor.License

Related Classes of com.verhas.licensor.License