예제 #1
0
파일: LibRt.java 프로젝트: yamila87/rt_src
 public static void logm(String t, int lvl, String msg, Object o) {
   // System.out.println("LOG:" + t + ":" + lvl + ":" + msg + ":" + (o != null ? ser_json(o) :
   // ""));
   if (lvl <= LogLvlMax) {
     logger.info(t + ":" + lvl + ":" + msg + ":" + (o != null ? ser_json(o) : ""));
   }
 }
예제 #2
0
파일: LibRt.java 프로젝트: yamila87/rt_src
public class LibRt {
  public static String CfgEncodingDflt =
      "ISO-8859-1"; // U: si no especificamos, un archivo a string se lee con este encoding

  public static final Logger logger = Logger.getLogger("rt");
  public static final String EOL = "\n";
  public static final int BUFF_SZ = 8192;

  public static java.util.Hashtable state =
      new java.util
          .Hashtable(); // U: accesible desde javascript para mantener estado entre llamadas AUNQUE
                        // los scripts se ejecuten de cero en cada thread

  public static boolean IsLogInitialized = false;

  public static void logInit(boolean force) throws IOException {
    if (!IsLogInitialized || force) {
      LogManager.getLogManager()
          .readConfiguration(
              LibRt.class.getClassLoader().getResourceAsStream("cfg.logging.properties"));
      String logFile = System.getProperty("CfgLog");
      if (logFile != null) {
        LogManager.getLogManager().readConfiguration(new FileInputStream(logFile));
      }
      try {
        LogLvlMax = Integer.parseInt(System.getProperty("LogLvlMax", LogLvlMax + ""));
      } catch (Exception ex) {
      }
      ; // XXX: mostrar mensaje?
    }
  }

  // Primitiva de log
  public static int LogLvlMax = 9; // DFLT

  public static void logm(String t, int lvl, String msg, Object o) {
    // System.out.println("LOG:" + t + ":" + lvl + ":" + msg + ":" + (o != null ? ser_json(o) :
    // ""));
    if (lvl <= LogLvlMax) {
      logger.info(t + ":" + lvl + ":" + msg + ":" + (o != null ? ser_json(o) : ""));
    }
  }

  public static void logmex(String t, int lvl, String msg, Object o, Exception ex) {
    StringBuilder sb = new StringBuilder();
    StackTraceElement se[] = ex.getStackTrace();
    for (int i = 0; i < se.length; i++) {
      sb.append(se[i].getMethodName() + "@" + se[i].getFileName() + "@" + se[i].getLineNumber());
      sb.append(" > ");
    }
    logm(t, lvl, msg + " EXCEPTION " + ex + " " + sb.toString(), o);
  }

  // ***************************************************************************
  // S: enc/base64

  public static String enc_base64(String data) throws UnsupportedEncodingException {
    return enc_base64(data.getBytes("UTF-8"));
  }

  public static String enc_base64(byte[] data) throws UnsupportedEncodingException {
    return DatatypeConverter.printBase64Binary(data);
  }

  public static String enc_base64_r_str(String encoded) throws UnsupportedEncodingException {
    return new String(enc_base64_r(encoded), "UTF-8");
  }

  public static byte[] enc_base64_r(String encoded) throws UnsupportedEncodingException {
    return DatatypeConverter.parseBase64Binary(encoded);
  }

  // ***************************************************************************
  // S: ser/json
  static final Gson gson = new Gson(); // A: encapsulamos
  // XXX: mejor usar Jackson? cual usan otros proyectos de EM? Por que?

  public static String ser_json(Object o) {
    String s = "";
    try {
      s = gson.toJson(o);
    } catch (Exception ex) {
      s = o + "";
    }
    return s;
  }

  // ***************************************************************************
  // S: ser/csv

  public static int serRsCsvToFile(
      ResultSet resultset, String[] columnNames, String path, int maxRows, String separator) {
    Writer writer;
    try {
      writer = fileWriter(path);
    } catch (UnsupportedEncodingException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN unsupported encondig", path);
      return -1;
    } catch (FileNotFoundException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN file not found", path);
      return -1;
    } catch (IOException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN file not found", path);
      return -1;
    }
    // A: writer escribe en el archivo especificado
    return serRsCsvToWriter(resultset, columnNames, writer, maxRows, separator);
  }

  public static int serDiccCsvToWriter(String str, String path, int maxRows, String separator) {
    Writer writer;
    try {
      writer = fileWriterAppend(path, false, null);
      logm("DBG", 9, "ABRE WRITER", null);
    } catch (UnsupportedEncodingException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN unsupported encondig", path);
      return -1;
    } catch (FileNotFoundException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN file not found", path);
      return -1;
    } catch (IOException e) {
      logm("ERR", 0, "FILE WRITER CSV OUTPUT OPEN file not found", path);
      return -1;
    }
    // A: writer escribe en el archivo especificado
    return serDiccCsvToWriter(str, writer, maxRows, separator);
  }

  public static String[] dbRsColumnNames(ResultSet resultset) throws SQLException {
    java.util.Vector<String> rv = new java.util.Vector<String>();
    if (resultset != null) {
      logm("DBG", 9, "ColumnCount=0 Calculando cantidad columnas desde metadata", null);
      ResultSetMetaData md = resultset.getMetaData();
      int columnCount = md.getColumnCount();
      logm("DBG", 9, "ColumnCount", columnCount);
      for (int i = 1; i <= columnCount; i++) {
        rv.add(md.getColumnName(i).toLowerCase());
      }
    }
    String[] r = rv.toArray(new String[0]);
    logm("DBG", 9, "DB dbRsColumnNames", r);
    return r;
  }

  public static int serRsCsvToWriter(
      ResultSet resultset, String[] columnNames, Writer writer, int maxRows, String separator) {
    int counter = 0;
    if (resultset != null) {
      if (columnNames == null) {
        try {
          logm("NFO", 9, "CSV titulos, obteniendo desde metadata", null);
          columnNames = dbRsColumnNames(resultset);
        } catch (SQLException e) {
          logmex("ERR", 1, "CSV titulos, obteniendo desde metadata", null, e);
          return -1;
        }
      }
      logm("DBG", 7, "CSV titulos", columnNames);
      // A: columnCount tiene el valor especificado o el default

      int columnCount = columnNames.length;
      // Itero el resultset escribiendo el output
      try {
        // XXX:OPCION escape separator si aparece en un valor?

        logm("DBG", 4, "ESCRIBIENDO ARCHIVO", resultset);

        for (int i = 0; i < columnCount - 1; i++) {
          logm("DBG", 9, "ESCRIBE COL: ", columnNames[i]);
          writer.write(columnNames[i]);
          writer.write(separator);
        }

        writer.write(columnNames[columnCount - 1]);
        writer.write(EOL);

        logm("DBG", 4, "SE ESCRIBIO LINEA DE COLUMNAS", null);
        logm("DBG", 4, "COUNTER", counter);
        logm("DBG", 4, "MAXROWS", maxRows);
        // A: escribi los nombres de las columnas

        boolean hasNext = resultset.next();

        logm("DBG", 4, "NEXT", hasNext);

        while ((counter < maxRows || maxRows < 0) && hasNext) {

          logm("DBG", 4, "Escribiendo fila :", counter);

          String buf;
          for (int i = 1; i < columnCount; i++) {

            if ((buf = resultset.getString(i)) != null) {
              writer.write(buf);
            }

            logm("DBG", 9, "STR", buf);

            writer.write(separator);
          }
          if ((buf = resultset.getString(columnCount)) != null) {
            writer.write(buf);
          }

          logm("DBG", 9, "STR", buf);

          writer.write(EOL);
          counter++;
          // XXX:loguear un cartelito ej. cada 1000
          hasNext = resultset.next();
        }

        logm("DBG", 2, "termino de escribir lineas", null);

      } catch (SQLException s) {
        logmex("ERR", 0, "DB leyendo resultset para CSV", null, s);
        return -1;
      } catch (IOException e) {
        logmex("ERR", 0, "FILE WRITER CSV OUTPUT writing", null, e);
        return -1;
      }
    } else {
      logm("NFO", 3, "DB FILE CSV RESULTSET IS NULL, was expected?", null);
    }
    try {
      writer.close();
    } catch (IOException e) {
      logmex("ERR", 0, "FILE WRITER CSV OUTPUT closing", null, e);
      return -1;
    }
    return counter;
  }

  @SuppressWarnings("unchecked")
  public static int serDiccCsvToWriter(String csv, Writer writer, int maxRows, String separator) {
    int counter = 0;

    if (csv != null) {
      try {
        writer.write(csv);
        writer.write(EOL);

      } catch (IOException e) {
        logmex("ERR", 0, "FILE WRITER CSV OUTPUT writing", null, e);
        return -1;
      }
    } else {
      logm("NFO", 3, "DB FILE CSV RESULTSET IS NULL, was expected?", null);
    }

    return counter;
  }

  public static int serDiccGroupByToWriter(
      ResultSet rs,
      Writer writer,
      int maxRows,
      String idPor,
      String[] idAcumulados,
      String campoAcumuladoNombre) {
    int rowsCount = 0;

    try {

      ArrayList<String> acumulado = null;
      String idActual = null;
      StringBuilder reg = null;
      reg = new StringBuilder();
      String value = "";

      if (rs != null) {
        ResultSetMetaData rsm = rs.getMetaData();
        int countCol = rsm.getColumnCount();
        String name = "";
        for (int i = 1; i <= countCol; i++) {
          name = rsm.getColumnName(i);
          reg.append(name.toLowerCase()).append("\t");
        }
        reg.append(campoAcumuladoNombre);

        writer.write(reg.toString() + EOL);

        while (rs.next()) {
          if (idActual == null) {
            reg = new StringBuilder();
            acumulado = new ArrayList<String>();
            idActual = rs.getString(idPor);

            for (int i = 1; i <= countCol; i++) {
              reg.append(rs.getString(i)).append("\t");
            }

            for (String id : idAcumulados) {
              value = rs.getString(id);
              if (!rs.wasNull()) {
                acumulado.add(rs.getString(id));
              }
            }

          } else {

            if (idActual.equals(rs.getString(idPor))) {
              for (String id : idAcumulados) {
                value = rs.getString(id);
                if (!rs.wasNull()) {
                  acumulado.add(rs.getString(id));
                }
              }
            } else {
              if (acumulado.size() > 0) {
                for (String str : acumulado) {
                  reg.append(str).append(",");
                }
                reg.deleteCharAt(reg.length() - 1);
              }
              reg.append(EOL);

              writer.write(reg.toString());
              rowsCount++;
              if (maxRows == rowsCount) {
                break;
              }

              idActual = rs.getString(idPor);
              reg = new StringBuilder();
              acumulado = new ArrayList<String>();

              for (int i = 1; i <= countCol; i++) {
                reg.append(rs.getString(i)).append("\t");
              }

              for (String id : idAcumulados) {
                value = rs.getString(id);
                if (!rs.wasNull()) {
                  acumulado.add(rs.getString(id));
                }
              }
            }
          }
        }

        if (acumulado.size() > 0) {
          for (String str : acumulado) {
            reg.append(str).append(",");
          }
          reg.deleteCharAt(reg.length() - 1);
        }
        reg.append(EOL);

        writer.write(reg.toString());
        rowsCount++;
      }
    } catch (SQLException e) {
      logm("ERR", 1, "Error al escribir registros", e);
    } catch (IOException e) {
      logm("ERR", 1, "Error al escribir registros", e);
    }
    return rowsCount;
  }

  public static void closeWriterAppend(Writer writer) {
    try {
      writer.close();
    } catch (IOException e) {
      logmex("ERR", 0, "FILE WRITER CSV OUTPUT closing", null, e);
    }
  }

  // ***************************************************************************
  // S: db
  public static int dbRsColumnCount(ResultSet rs) throws SQLException {
    return rs.getMetaData().getColumnCount();
  }

  // ***************************************************************************
  // S: digest
  public static MessageDigest digestCalc(String algorithm) throws NoSuchAlgorithmException {
    return MessageDigest.getInstance(algorithm);
  }

  public static String digestHexStr(MessageDigest digestCalc) {
    return (new HexBinaryAdapter()).marshal(digestCalc.digest());
  }

  public static String digest(String data, String algorithm) throws NoSuchAlgorithmException {
    MessageDigest calc = digestCalc(algorithm);
    calc.update(data.getBytes());
    return digestHexStr(calc);
  }

  // ***************************************************************************
  // S: file
  public static Writer fileWriter(String path)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return fileWriter(path, false, null);
  }

  public static Writer fileWriter(String path, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return streamWriter(new FileOutputStream(path), zip, digestCalc);
  }

  public static Writer fileWriterAppend(String path, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return streamWriter(new FileOutputStream(path, true), zip, digestCalc);
  }

  public static OutputStream streamForOutput_file(
      String path, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return streamForOutput(new FileOutputStream(path), zip, digestCalc);
  }

  public static OutputStream streamForOutput(OutputStream os, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    OutputStream dos = digestCalc != null ? new DigestOutputStream(os, digestCalc) : os;
    OutputStream zos = zip ? new GZIPOutputStream(dos) : dos;
    return zos;
  }

  public static Writer streamWriter(OutputStream os, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return new BufferedWriter(
        new OutputStreamWriter(streamForOutput(os, zip, digestCalc), "utf-8"));
  }

  public static InputStream streamForInput_file(String path, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return streamForInput(new FileInputStream(path), zip, digestCalc);
  }

  public static Reader fileReader(String path, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return streamReader(new FileInputStream(path), zip, digestCalc);
  }

  public static InputStream streamForInput(InputStream fis, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    InputStream dis = digestCalc != null ? new DigestInputStream(fis, digestCalc) : fis;
    InputStream zis = zip ? new GZIPInputStream(dis) : dis;
    return zis;
  }

  public static Reader streamReader(InputStream fis, boolean zip, MessageDigest digestCalc)
      throws UnsupportedEncodingException, FileNotFoundException, IOException {
    return new BufferedReader(
        new InputStreamReader(streamForInput(fis, zip, digestCalc))); // , "utf-8"));
  }

  public static int pipe_stream(InputStream is, OutputStream os, boolean wantsKeepOpen)
      throws IOException { // U: copia de un stream al otro
    int cnt = 0;
    int n;
    byte[] buffer = new byte[BUFF_SZ];
    while ((n = is.read(buffer)) > -1) {
      cnt += n;
      os.write(buffer, 0, n);
    }
    if (!wantsKeepOpen) {
      is.close();
      os.close();
    }
    return cnt;
  }

  public static String get_stream(Reader isr) throws IOException {
    char[] buffer = new char[BUFF_SZ];
    StringBuilder out = new StringBuilder();
    logm("DBG", 9, "STREAM GET", isr + "");
    for (; ; ) {
      int rsz = isr.read(buffer, 0, buffer.length);
      logm("DBG", 9, "STREAM GET READ", rsz);
      if (rsz < 0) break;
      out.append(buffer, 0, rsz);
    }
    String s = out.toString();
    logm("DBG", 9, "STREAM GET RESULT", s);
    return s;
  }

  public static String get_stream(InputStream is) throws IOException {
    return get_stream(is, CfgEncodingDflt);
  }

  public static String get_stream(InputStream is, String encoding) throws IOException {
    if (encoding == null) {
      encoding = CfgEncodingDflt;
    }
    byte[] buffer = new byte[BUFF_SZ];
    StringBuilder out = new StringBuilder();
    logm("DBG", 9, "STREAM GET", is + "");
    for (; ; ) {
      int rsz = is.read(buffer, 0, buffer.length);
      logm("DBG", 9, "STREAM GET READ", rsz);
      if (rsz < 0) break;
      out.append(new String(buffer, 0, rsz, encoding));
    }
    String s = out.toString();
    logm("DBG", 9, "STREAM GET RESULT", s);
    return s;
  }

  public static void set_stream(OutputStream os, String data, String encoding) throws IOException {
    os.write(data.getBytes(encoding));
    os.close();
  }

  public static void set_stream(Writer os, String data) throws IOException {
    os.write(data);
    os.close();
  }

  public static String get_file(
      String path, boolean gzip, MessageDigest digestCalc, String encoding)
      throws UnsupportedEncodingException, IOException {
    try {
      return get_stream(streamForInput_file(path, gzip, digestCalc));
    } catch (FileNotFoundException ex) {
      return "";
    }
  }

  public static String get_resource(String path) throws IOException {
    java.io.InputStream srcs = null;
    try {
      srcs = LibRt.class.getResourceAsStream(path);
      return get_stream(srcs);
    } catch (IOException ex) {
      LibRt.logmex("DBG", 9, "RT GET_RESOURCE", path, ex);
      throw (ex);
    }
  }

  public static String get_resourceOrFile(
      String path, boolean gzip, MessageDigest digestCalc, String encoding)
      throws UnsupportedEncodingException, IOException {
    try {
      return get_resource(path);
    } catch (IOException ex) {
      return get_file(path, gzip, digestCalc, encoding);
    }
  }

  public static void set_file(
      String path, String data, boolean gzip, MessageDigest digestCalc, String encoding)
      throws UnsupportedEncodingException, IOException {
    set_stream(streamForOutput_file(path, gzip, digestCalc), data, CfgEncodingDflt);
  }

  public static String[] get_filelist(String path, boolean nodirs, boolean nofiles) {
    File folder = new File(path);
    if (folder.isDirectory()) {
      File[] listOfFiles = folder.listFiles();
      java.util.Vector<String> r = new java.util.Vector<String>();
      for (int i = 0; listOfFiles != null && i < listOfFiles.length; i++) {
        if ((listOfFiles[i].isFile() && !nofiles) || (listOfFiles[i].isDirectory() && !nodirs)) {
          r.add(listOfFiles[i].getName());
        }
      }
      return r.toArray(new String[0]);
    } else {
      return null; // A: no existe o no es directorio
    }
  }

  public static FileLock lock_file(String path) throws IOException, FileNotFoundException {
    RandomAccessFile file = new RandomAccessFile(path, "rw");
    FileChannel fileChannel = file.getChannel();
    return fileChannel.tryLock();
  }

  public static boolean unlock_file(FileLock fileLock) throws IOException, FileNotFoundException {
    if (fileLock != null) {
      fileLock.release();
      return true;
    }
    return false;
  }

  public static String temp_filePath(String namePattern, String ext)
      throws IOException, FileNotFoundException {
    File temp = File.createTempFile("temp-file-name", ".tmp");
    return temp.getAbsolutePath();
  }

  // ***************************************************************************
  // S File: scp = copiar sobre ssh
  public static void set_file_scp(
      String srcFilePath,
      String dstUrl,
      String dstFilePath,
      String dstUser,
      String dstPass,
      String keyFilePath)
      throws SshException {
    // SEE:
    // http://code.google.com/p/securechannelfacade/source/browse/trunk/src/main/java/org/rev6/scf/SshConnection.java?r=12
    SshConnection sshCx = null;
    String[] nameAndPort = dstUrl.split(":");
    int dstPort = nameAndPort.length > 1 ? Integer.parseInt(nameAndPort[1]) : 22;
    try {
      if (keyFilePath == null) {
        sshCx = new SshConnection(nameAndPort[0], dstUser, dstPass);
        logm(
            "DBG",
            7,
            "NET SSH CONNECT TO {HOST: '"
                + nameAndPort[0]
                + "', PORT:"
                + dstPort
                + ", USER:'******', auth: '"
                + "pass"
                + "'}",
            null);
      } else {
        sshCx = new SshConnection(nameAndPort[0], dstUser, new File(keyFilePath));
        logm(
            "DBG",
            7,
            "NET SSH CONNECT TO {HOST: '"
                + nameAndPort[0]
                + "', PORT:"
                + dstPort
                + ", USER:'******', auth: 'key', keyfile: '"
                + keyFilePath
                + "'}",
            null);
      }

      sshCx.setPort(dstPort);
      sshCx.connect();
      ScpFile scpFile = new ScpFile(new File(srcFilePath), dstFilePath);
      sshCx.executeTask(new ScpUpload(scpFile));
    } finally {
      if (sshCx != null) {
        sshCx.disconnect();
      }
    }
  }

  public static void set_file_scp_pass(
      String srcFilePath, String dstUrl, String dstFilePath, String dstUser, String dstPass)
      throws SshException {
    set_file_scp(srcFilePath, dstUrl, dstFilePath, dstUser, dstPass, null);
  }

  public static void set_file_scp_key(
      String srcFilePath, String dstUrl, String dstFilePath, String dstUser, String keyFilePath)
      throws SshException {
    set_file_scp(srcFilePath, dstUrl, dstFilePath, dstUser, null, keyFilePath);
  }

  // ***************************************************************************
  // S: net/http
  public static HttpURLConnection httpCx(String url, String method, String usr, String pass)
      throws MalformedURLException, IOException, ProtocolException {
    // NB:https requiere HAVA_HOME para encontrar los certificados!
    URL obj = new URL(url);
    HttpURLConnection cx = (HttpURLConnection) obj.openConnection();
    cx.setRequestMethod(method);
    if (usr != "") {
      String basicAuth = "Basic " + new String(enc_base64(usr + ":" + pass));
      cx.setRequestProperty("Authorization", basicAuth);
    }
    // A: parameters set

    return cx;
  }

  public static void httpWrite(HttpURLConnection cx, String data)
      throws IOException, ProtocolException {
    cx.setDoOutput(true);
    DataOutputStream wr = new DataOutputStream(cx.getOutputStream());
    wr.writeBytes(data);
    wr.flush();
    wr.close();
  }

  public static String httpRead(HttpURLConnection cx)
      throws UnsupportedEncodingException, IOException {
    // int responseCode = con.getResponseCode();
    return get_stream(cx.getInputStream());
  }

  public static String get_http(String url, String method, String data, String usr, String pass)
      throws IOException, ProtocolException, UnsupportedEncodingException {
    HttpURLConnection cx = httpCx(url, method, usr, pass);
    if (data != null) {
      httpWrite(cx, data);
    }
    return httpRead(cx);
  }

  // ****************************************************************************
  // S: Javascript
  public static LibRtJs JsImpl =
      System.getProperty("jsImpl", "RHINO").equals("JDK") ? new LibRtJsJdk() : new LibRtJsRhino();

  public static LibRtJs jsEval(String js, String srcDesc, LibRtJs jsEnv, String[] args)
      throws Exception {
    logm("DBG", 9, "RT JS EVAL START PATH=" + srcDesc + " SRC", js);
    return JsImpl.jsEval(js, srcDesc, jsEnv, args);
  }

  public static Object jsCall(String funName, LibRtJs jsEnv, Object[] args)
      throws IOException, Exception {
    logm("DBG", 5, "RT JS CALL TRY", funName);
    return JsImpl.jsCall(funName, jsEnv, args);
  }

  public static LibRtJs jsLoad(String path, LibRtJs jsEnv, String[] args)
      throws IOException, Exception {
    logm("DBG", 5, "RT JS LOAD TRY", path);
    return JsImpl.jsLoad(path, jsEnv, args);
  }

  public static LibRtJs jsLoadAlone(
      String path,
      Hashtable<String, Object>
          env) { // U: ejecutar un script en un contexto separado (no comparte variables salvo las
                 // que le pasemos en el hashtable)
    return JsImpl.jsLoadAlone(path, env);
  }

  // ****************************************************************************
  // S: paths

  public static String runtimePath()
      throws java.net.URISyntaxException,
          java.net.MalformedURLException { // U: para cargar librerias y assets, etc.
    // SEE: http://stackoverflow.com/questions/320542/how-to-get-the-path-of-a-running-jar-file
    URL url = LibRt.class.getResource(LibRt.class.getSimpleName() + ".class");
    logm("DBG", 1, "RT runtimePath URL", url);
    URL urlOk = (url.getProtocol() == "jar" ? new URL(url.getPath()) : url);
    logm("DBG", 1, "RT runtimePath URL OK", urlOk);
    return new File(urlOk.toURI()).getParentFile().getPath();
  }

  // ****************************************************************************
  // S: main
  public static void init() throws Exception {
    logInit(false);
  }

  public static void main(String[] args) throws Exception {
    init();
    String mainPath = args.length > 0 ? args[0] : "0inicio.js";
    try {
      jsLoad("librt.js", null, args);
      jsLoad(mainPath, null, args);
    } catch (Exception ex) {
      ex.printStackTrace();
      logmex("ERR", 1, "RT RUNNING SCRIPTS", null, ex);
    }
  }

  private static Class<?> getClassFromJar(String pathToJar, String pkg, String classToGet)
      throws IOException, ClassNotFoundException, SecurityException, InstantiationException,
          IllegalAccessException, NoSuchMethodException, IllegalArgumentException,
          InvocationTargetException {

    JarFile jarFile = new JarFile(pathToJar);
    Enumeration e = jarFile.entries();

    URL[] urls = {new URL("jar:file:" + pathToJar + "!/")};
    ClassLoader cl = URLClassLoader.newInstance(urls);

    Class<?> c = Class.forName(pkg + "." + classToGet, true, cl);

    return c;
  }

  public static void executeMethodClass(
      String pathToJar,
      String pkg,
      String classToGet,
      String methodName,
      String pathToFile,
      long logIdSyncMin,
      long logIdSyncMax)
      throws IOException, ClassNotFoundException, SecurityException, InstantiationException,
          IllegalAccessException, NoSuchMethodException, IllegalArgumentException,
          InvocationTargetException {
    Class<?> c = getClassFromJar(pathToJar, pkg, classToGet);
    Method method = c.getDeclaredMethod(methodName, String.class, long.class, long.class);
    method.invoke(null, pathToFile, logIdSyncMin, logIdSyncMax);
  }
}