burlapoutput.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 965 行 · 第 1/2 页

    if (utcCalendar == null) {
      utcCalendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
      date = new Date();
    }

    date.setTime(time);
    utcCalendar.setTime(date);

    printDate(utcCalendar);
    print("</date>");
  }

  /**
   * Writes a null value to the stream.
   * The null will be written with the following syntax
   *
   * <code><pre>
   * &lt;null>&lt;/null>
   * </pre></code>
   *
   * @param value the string value to write.
   */
  public void writeNull()
    throws IOException
  {
    print("<null></null>");
  }

  /**
   * Writes a string value to the stream using UTF-8 encoding.
   * The string will be written with the following syntax:
   *
   * <code><pre>
   * &lt;string>string-value&lt;/string>
   * </pre></code>
   *
   * If the value is null, it will be written as
   *
   * <code><pre>
   * &lt;null>&lt;/null>
   * </pre></code>
   *
   * @param value the string value to write.
   */
  public void writeString(String value)
    throws IOException
  {
    if (value == null) {
      print("<null></null>");
    }
    else {
      print("<string>");
      printString(value);
      print("</string>");
    }
  }

  /**
   * Writes a string value to the stream using UTF-8 encoding.
   * The string will be written with the following syntax:
   *
   * <code><pre>
   * S b16 b8 string-value
   * </pre></code>
   *
   * If the value is null, it will be written as
   *
   * <code><pre>
   * N
   * </pre></code>
   *
   * @param value the string value to write.
   */
  public void writeString(char []buffer, int offset, int length)
    throws IOException
  {
    if (buffer == null) {
      print("<null></null>");
    }
    else {
      print("<string>");
      printString(buffer, offset, length);
      print("</string>");
    }
  }

  /**
   * Writes a byte array to the stream.
   * The array will be written with the following syntax:
   *
   * <code><pre>
   * &lt;base64>bytes&lt;/base64>
   * </pre></code>
   *
   * If the value is null, it will be written as
   *
   * <code><pre>
   * &lt;null>&lt;/null>
   * </pre></code>
   *
   * @param value the string value to write.
   */
  public void writeBytes(byte []buffer)
    throws IOException
  {
    if (buffer == null)
      print("<null></null>");
    else
      writeBytes(buffer, 0, buffer.length);
  }
  /**
   * Writes a byte array to the stream.
   * The array will be written with the following syntax:
   *
   * <code><pre>
   * &lt;base64>bytes&lt;/base64>
   * </pre></code>
   *
   * If the value is null, it will be written as
   *
   * <code><pre>
   * &lt;null>&lt;/null>
   * </pre></code>
   *
   * @param value the string value to write.
   */
  public void writeBytes(byte []buffer, int offset, int length)
    throws IOException
  {
    if (buffer == null) {
      print("<null></null>");
    }
    else {
      print("<base64>");

      int i = 0;
      for (; i + 2 < length; i += 3) {
        if (i != 0 && (i & 0x3f) == 0)
          print('\n');

        int v = (((buffer[offset + i] & 0xff) << 16) +
                 ((buffer[offset + i + 1] & 0xff) << 8) + 
                 (buffer[offset + i + 2] & 0xff));

        print(encode(v >> 18));
        print(encode(v >> 12));
        print(encode(v >> 6));
        print(encode(v));
      }

      if (i + 1 < length) {
        int v = (((buffer[offset + i] & 0xff) << 8) +
                 (buffer[offset + i + 1] & 0xff));

        print(encode(v >> 10));
        print(encode(v >> 4));
        print(encode(v << 2));
        print('=');
      }
      else if (i < length) {
        int v = buffer[offset + i] & 0xff;

        print(encode(v >> 2));
        print(encode(v << 4));
        print('=');
        print('=');
      }
      
      print("</base64>");
    }
  }
  
  /**
   * Writes a byte buffer to the stream.
   */
  public void writeByteBufferStart()
    throws IOException
  {
    throw new UnsupportedOperationException();
  }
  
  /**
   * Writes a byte buffer to the stream.
   *
   * <code><pre>
   * b b16 b18 bytes
   * </pre></code>
   */
  public void writeByteBufferPart(byte []buffer, int offset, int length)
    throws IOException
  {
    throw new UnsupportedOperationException();
  }
  
  /**
   * Writes a byte buffer to the stream.
   *
   * <code><pre>
   * b b16 b18 bytes
   * </pre></code>
   */
  public void writeByteBufferEnd(byte []buffer, int offset, int length)
    throws IOException
  {
    throw new UnsupportedOperationException();
  }

  /**
   * Encodes a digit
   */
  private char encode(int d)
  {
    d &= 0x3f;
    if (d < 26)
      return (char) (d + 'A');
    else if (d < 52)
      return (char) (d + 'a' - 26);
    else if (d < 62)
      return (char) (d + '0' - 52);
    else if (d == 62)
      return '+';
    else
      return '/';
  }

  /**
   * Writes a reference.
   *
   * <code><pre>
   * &lt;ref>int&lt;/ref>
   * </pre></code>
   *
   * @param value the integer value to write.
   */
  public void writeRef(int value)
    throws IOException
  {
    print("<ref>");
    print(value);
    print("</ref>");
  }

  /**
   * If the object has already been written, just write its ref.
   *
   * @return true if we're writing a ref.
   */
  public boolean addRef(Object object)
    throws IOException
  {
    if (_refs == null)
      _refs = new IdentityHashMap();

    Integer ref = (Integer) _refs.get(object);

    if (ref != null) {
      int value = ref.intValue();
      
      writeRef(value);
      return true;
    }
    else {
      _refs.put(object, new Integer(_refs.size()));
      
      return false;
    }
  }

  /**
   * Removes a reference.
   */
  public boolean removeRef(Object obj)
    throws IOException
  {
    if (_refs != null) {
      _refs.remove(obj);

      return true;
    }
    else
      return false;
  }

  /**
   * Replaces a reference from one object to another.
   */
  public boolean replaceRef(Object oldRef, Object newRef)
    throws IOException
  {
    Integer value = (Integer) _refs.remove(oldRef);

    if (value != null) {
      _refs.put(newRef, value);
      return true;
    }
    else
      return false;
  }

  /**
   * Prints a string to the stream, encoded as UTF-8
   *
   * @param v the string to print.
   */
  public void printString(String v)
    throws IOException
  {
    printString(v, 0, v.length());
  }
  
  /**
   * Prints a string to the stream, encoded as UTF-8
   *
   * @param v the string to print.
   */
  public void printString(String v, int offset, int length)
    throws IOException
  {
    for (int i = 0; i < length; i++) {
      char ch = v.charAt(i + offset);

      if (ch == '<') {
        os.write('&');
        os.write('#');
        os.write('6');
        os.write('0');
        os.write(';');
      }
      else if (ch == '&') {
        os.write('&');
        os.write('#');
        os.write('3');
        os.write('8');
        os.write(';');
      }
      else if (ch < 0x80)
        os.write(ch);
      else if (ch < 0x800) {
        os.write(0xc0 + ((ch >> 6) & 0x1f));
        os.write(0x80 + (ch & 0x3f));
      }
      else {
        os.write(0xe0 + ((ch >> 12) & 0xf));
        os.write(0x80 + ((ch >> 6) & 0x3f));
        os.write(0x80 + (ch & 0x3f));
      }
    }
  }
  
  /**
   * Prints a string to the stream, encoded as UTF-8
   *
   * @param v the string to print.
   */
  public void printString(char []v, int offset, int length)
    throws IOException
  {
    for (int i = 0; i < length; i++) {
      char ch = v[i + offset];

      if (ch < 0x80)
        os.write(ch);
      else if (ch < 0x800) {
        os.write(0xc0 + ((ch >> 6) & 0x1f));
        os.write(0x80 + (ch & 0x3f));
      }
      else {
        os.write(0xe0 + ((ch >> 12) & 0xf));
        os.write(0x80 + ((ch >> 6) & 0x3f));
        os.write(0x80 + (ch & 0x3f));
      }
    }
  }
  
  /**
   * Prints a date.
   *
   * @param date the date to print.
   */
  public void printDate(Calendar calendar)
    throws IOException
  {
    int year = calendar.get(Calendar.YEAR);

    os.write((char) ('0' + (year / 1000 % 10)));
    os.write((char) ('0' + (year / 100 % 10)));
    os.write((char) ('0' + (year / 10 % 10)));
    os.write((char) ('0' + (year % 10)));

    int month = calendar.get(Calendar.MONTH) + 1;
    os.write((char) ('0' + (month / 10 % 10)));
    os.write((char) ('0' + (month % 10)));

    int day = calendar.get(Calendar.DAY_OF_MONTH);
    os.write((char) ('0' + (day / 10 % 10)));
    os.write((char) ('0' + (day % 10)));

    os.write('T');

    int hour = calendar.get(Calendar.HOUR_OF_DAY);
    os.write((char) ('0' + (hour / 10 % 10)));
    os.write((char) ('0' + (hour % 10)));

    int minute = calendar.get(Calendar.MINUTE);
    os.write((char) ('0' + (minute / 10 % 10)));
    os.write((char) ('0' + (minute % 10)));

    int second = calendar.get(Calendar.SECOND);
    os.write((char) ('0' + (second / 10 % 10)));
    os.write((char) ('0' + (second % 10)));

    int ms = calendar.get(Calendar.MILLISECOND);
    os.write('.');
    os.write((char) ('0' + (ms / 100 % 10)));
    os.write((char) ('0' + (ms / 10 % 10)));
    os.write((char) ('0' + (ms % 10)));

    os.write('Z');
  }
  
  /**
   * Prints a char to the stream.
   *
   * @param v the char to print.
   */
  protected void print(char v)
    throws IOException
  {
    os.write(v);
  }
  
  /**
   * Prints an integer to the stream.
   *
   * @param v the integer to print.
   */
  protected void print(int v)
    throws IOException
  {
    print(String.valueOf(v));
  }

  /**
   * Prints a long to the stream.
   *
   * @param v the long to print.
   */
  protected void print(long v)
    throws IOException
  {
    print(String.valueOf(v));
  }

  /**
   * Prints a double to the stream.
   *
   * @param v the double to print.
   */
  protected void print(double v)
    throws IOException
  {
    print(String.valueOf(v));
  }

  /**
   * Prints a string as ascii to the stream.  Used for tags, etc.
   * that are known to the ascii.
   *
   * @param s the ascii string to print.
   */
  protected void print(String s)
    throws IOException
  {
    int len = s.length();
    for (int i = 0; i < len; i++) {
      int ch = s.charAt(i);

      os.write(ch);
    }
  }
}