Examples of com.caucho.util.CharBuffer

com.caucho.util.CharBuffer
CharBuffer is an unsynchronized version of StringBuffer.

   * </pre>
   */
  private EnumExpr parseEnum(String head)
    throws QueryParseException
  {
    CharBuffer cb = CharBuffer.allocate();


    int token;


    while ((token = scanToken()) == '.') {


      if (cb.length() > 0)
        cb.append('.');


      cb.append(head);


      token = scanToken();


      if (token != IDENTIFIER)
        throw error(L.l("expected identifier for enumerated type {0} at {1}",
                        cb.toString(),
                        tokenName(token)));


      head = _lexeme.toString();
    }


    int value = -1;
    Class cl = null;


    try {
      ClassLoader loader = Thread.currentThread().getContextClassLoader();


      cl = Class.forName(cb.toString(), false, loader);


      Enum enumValue = Enum.valueOf(cl, head);


      value = enumValue.ordinal();
    } catch (ClassNotFoundException e) {

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        unread(ch);
        return GT;
      }


    case '?':
      CharBuffer cb = CharBuffer.allocate();
      int index = 0;
      for (ch = read(); ch >= '0' && ch <= '9'; ch = read()) {
        cb.append((char) ch);
        index = 10 * index + ch - '0';
      }
      unread(ch);


      _lexeme = cb.close();


      if (_lexeme.length() == 0) {
        _lexeme = String.valueOf(++_parameterCount);
      }
      else if (index <= 0)
        throw error(L.l("`{0}' must refer to a positive argument",
                        "?" + _lexeme));


      return ARG;


    case ':':
      if (Character.isJavaIdentifierStart((char) (ch = read()))) {
        cb = CharBuffer.allocate();


        for (; ch > 0 && Character.isJavaIdentifierPart((char) ch); ch = read())
          cb.append((char) ch);


        unread(ch);


        _lexeme = cb.close();


        _parameterCount++;
      }
      else
        throw error(L.l("`{0}' must be a valid parameter identifier",
                        ":" + ((char) ch)));


      return NAMED_ARG;


    case '|':
      if ((ch = read()) == '|')
        return CONCAT_OP;
      else
        throw error(L.l("unexpected char at {0}", String.valueOf((char) ch)));


    // @@ is useless?
    case '@':
      if ((ch = read()) != '@')
        throw error(L.l("`@' expected at {0}", charName(ch)));
      return scanToken();
    }


    if (Character.isJavaIdentifierStart((char) ch)) {
      CharBuffer cb = CharBuffer.allocate();


      for (; ch > 0 && Character.isJavaIdentifierPart((char) ch); ch = read())
        cb.append((char) ch);


      unread(ch);


      _lexeme = cb.close();
      String lower = _lexeme.toLowerCase(Locale.ENGLISH);


      int token = _reserved.get(lower);


      if (token > 0)
        return token;
      else
        return IDENTIFIER;
    }
    else if (ch >= '0' && ch <= '9') {
      CharBuffer cb = CharBuffer.allocate();


      int type = INTEGER;


      if (sign < 0)
        cb.append('-');


      for (; ch >= '0' && ch <= '9'; ch = read())
        cb.append((char) ch);


      if (ch == '.') {
        type = DOUBLE;


        cb.append('.');
        for (ch = read(); ch >= '0' && ch <= '9'; ch = read())
          cb.append((char) ch);
      }


      if (ch == 'e' || ch == 'E') {
        type = DOUBLE;


        cb.append('e');
        if ((ch = read()) == '+' || ch == '-') {
          cb.append((char) ch);
          ch = read();
        }


        if (! (ch >= '0' && ch <= '9'))
          throw error(L.l("exponent needs digits at {0}",
                          charName(ch)));


        for (; ch >= '0' && ch <= '9'; ch = read())
          cb.append((char) ch);
      }


      if (ch == 'F' || ch == 'D')
        type = DOUBLE;
      else if (ch == 'L') {
        type = LONG;
      }
      else
        unread(ch);


      _lexeme = cb.close();


      return type;
    }
    else if (ch == '\'') {
      CharBuffer cb = CharBuffer.allocate();


      cb.append("'");
      for (ch = read(); ch >= 0; ch = read()) {
        if (ch == '\'') {
          if ((ch = read()) == '\'')
            cb.append("''");
          else {
            unread(ch);
            break;
          }
        }
        else
          cb.append((char) ch);
      }
      cb.append("'");


      _lexeme = cb.close();


      return STRING;
    }


    throw error(L.l("unexpected char at {0}", "" + (char) ch));

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  private String hex(int n)
  {
    n = n & 0xff;
    
    CharBuffer cb = CharBuffer.allocate();


    cb.append("0x");


    int d = n / 16;
    if (d >= 0 && d <= 9)
      cb.append((char) ('0' + d));
    else
      cb.append((char) ('a' + d - 10));
    
    d = n % 16;
    if (d >= 0 && d <= 9)
      cb.append((char) ('0' + d));
    else
      cb.append((char) ('a' + d - 10));


    return cb.close();
  }

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    ServletContext rootContext = webApp.getContext("/");


    if (rootContext != null)
      addHeader(stream, ws, "DOCUMENT_ROOT", rootContext.getRealPath("/"));


    CharBuffer cb = new CharBuffer();


    Enumeration e = req.getHeaderNames();
    while (e.hasMoreElements()) {
      String key = (String) e.nextElement();
      String value = req.getHeader(key);

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  }


  private int parseHeaders(HttpServletResponse res, InputStream is)
    throws IOException
  {
    CharBuffer key = new CharBuffer();
    CharBuffer value = new CharBuffer();


    int ch = is.read();


    if (ch < 0) {
      log.fine("Can't contact FastCGI");
      res.sendError(404);
      return -1;
    }


    while (ch >= 0) {
      key.clear();
      value.clear();


      for (;
           ch >= 0 && ch != ' ' && ch != '\r' && ch != '\n' && ch != ':';
           ch = is.read()) {
        key.append((char) ch);
      }


      for (;
           ch >= 0 && ch == ' ' || ch == ':';
           ch = is.read()) {
      }


      for (;
           ch >= 0 && ch != '\r' && ch != '\n';
           ch = is.read()) {
        value.append((char) ch);
      }


      if (ch == '\r') {
        ch = is.read();
        if (ch == '\n')
          ch = is.read();
      }


      if (key.length() == 0)
        return ch;


      if (log.isLoggable(Level.FINE))
        log.fine("fastcgi:" + key + ": " + value);


      if (key.equalsIgnoreCase("status")) {
        int status = 0;
        int len = value.length();


        for (int i = 0; i < len; i++) {
          char digit = value.charAt(i);


          if ('0' <= digit && digit <= '9')
            status = 10 * status + digit - '0';
          else
            break;
        }


        res.setStatus(status);
      }
      else if (key.startsWith("http") || key.startsWith("HTTP")) {
      }
      else if (key.equalsIgnoreCase("location")) {
        res.sendRedirect(value.toString());
      }
      else
        res.addHeader(key.toString(), value.toString());
    }


    return ch;
  }

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  /**
   * Returns a printable version.
   */
  public String toString()
  {
    CharBuffer cb = new CharBuffer();
    cb.append("AttributesImpl[");
    for (int i = 0; i < _size; i++) {
      cb.append(" ");
      cb.append(_names[i]);
      cb.append("=\"");
      cb.append(_values[i]);
      cb.append("\"");
    }
    cb.append("]");
    
    return cb.close();
  }

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      else if (encoding != null)
        in.setEncoding(encoding);
      else if (contentType != null) {
        int p = contentType.indexOf("charset=");
        if (p > 0) {
          CharBuffer cb = new CharBuffer();
          for (int i = p + 8; i < contentType.length(); i++) {
            int ch = contentType.charAt(i);
            if (ch == '"' || ch == '\'') {
            }
            else if (ch >= 'a' && ch <= 'z')
              cb.append((char) ch);
            else if (ch >= 'A' && ch <= 'Z')
              cb.append((char) ch);
            else if (ch >= '0' && ch <= '9')
              cb.append((char) ch);
            else if (ch == '-' || ch == '_')
              cb.append((char) ch);
            else
              break;
          }
          encoding = cb.toString();


          in.setEncoding(encoding);
        }
      }

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    String name;


    if (pathInfo == null && queryString == null)
      name = servletPath;
    else {
      CharBuffer nameBuilder = new CharBuffer();


      nameBuilder.append(servletPath);


      if (pathInfo != null)
        nameBuilder.append(pathInfo);


      if (queryString != null) {
        nameBuilder.append('?');
        nameBuilder.append(queryString);
      }


      name = nameBuilder.toString();
    }


    ProfilerPoint profilerPoint = _profilerManager.getProfilerPoint(name);


    if (log.isLoggable(Level.FINEST))

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  private String createTimeString(long totalTime,
                                  long thisTime,
                                  long childrenTime)
  {
    CharBuffer cb = new CharBuffer();


    cb.append("totalTime=");
    formatTime(cb, totalTime);


    cb.append(" thisTime=");
    formatTime(cb, thisTime);


    cb.append(" childrenTime=");
    formatTime(cb, childrenTime);


    return cb.toString();
  }

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    return cb.toString();
  }


  private void printTime(XmlWriter out, long time)
  {
    CharBuffer cb = new CharBuffer();
    formatTime(cb, time);
    out.writeText(cb.toString());
  }

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