hessian2input.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 2,784 行 · 第 1/4 页

      _chunkLength = tag - 0x00;

      _sbuf.setLength(0);

      while ((ch = parseChar()) >= 0)
        _sbuf.append((char) ch);

      return _sbuf.toString();

    default:
      throw expect("string", tag);
    }
  }

  /**
   * Reads an XML node.
   *
   * <pre>
   * S b16 b8 string value
   * </pre>
   */
  public org.w3c.dom.Node readNode()
    throws IOException
  {
    int tag = read();

    switch (tag) {
    case 'N':
      return null;

    case 'S':
    case 's':
    case 'X':
    case 'x':
      _isLastChunk = tag == 'S' || tag == 'X';
      _chunkLength = (read() << 8) + read();

      throw error("XML is not supported");

    case 0x00: case 0x01: case 0x02: case 0x03:
    case 0x04: case 0x05: case 0x06: case 0x07:
    case 0x08: case 0x09: case 0x0a: case 0x0b:
    case 0x0c: case 0x0d: case 0x0e: case 0x0f:

    case 0x10: case 0x11: case 0x12: case 0x13:
    case 0x14: case 0x15: case 0x16: case 0x17:
    case 0x18: case 0x19: case 0x1a: case 0x1b:
    case 0x1c: case 0x1d: case 0x1e: case 0x1f:
      _isLastChunk = true;
      _chunkLength = tag - 0x00;

      throw error("XML is not supported");

    default:
      throw expect("string", tag);
    }
  }

  /**
   * Reads a byte array
   *
   * <pre>
   * B b16 b8 data value
   * </pre>
   */
  public byte []readBytes()
    throws IOException
  {
    int tag = read();

    switch (tag) {
    case 'N':
      return null;

    case 'B':
    case 'b':
      _isLastChunk = tag == 'B';
      _chunkLength = (read() << 8) + read();

      ByteArrayOutputStream bos = new ByteArrayOutputStream();

      int data;
      while ((data = parseByte()) >= 0)
        bos.write(data);

      return bos.toByteArray();

    case 0x20: case 0x21: case 0x22: case 0x23:
    case 0x24: case 0x25: case 0x26: case 0x27:
    case 0x28: case 0x29: case 0x2a: case 0x2b:
    case 0x2c: case 0x2d: case 0x2e: case 0x2f:
      _isLastChunk = true;
      _chunkLength = tag - 0x20;

      bos = new ByteArrayOutputStream();

      while ((data = parseByte()) >= 0)
        bos.write(data);

      return bos.toByteArray();
      
    default:
      throw expect("bytes", tag);
    }
  }

  /**
   * Reads a byte from the stream.
   */
  public int readByte()
    throws IOException
  {
    if (_chunkLength > 0) {
      _chunkLength--;
      if (_chunkLength == 0 && _isLastChunk)
        _chunkLength = END_OF_DATA;

      return read();
    }
    else if (_chunkLength == END_OF_DATA) {
      _chunkLength = 0;
      return -1;
    }
    
    int tag = read();

    switch (tag) {
    case 'N':
      return -1;

    case 'B':
    case 'b':
      _isLastChunk = tag == 'B';
      _chunkLength = (read() << 8) + read();

      int value = parseByte();

      // special code so successive read byte won't
      // be read as a single object.
      if (_chunkLength == 0 && _isLastChunk)
        _chunkLength = END_OF_DATA;

      return value;
      
    default:
      throw expect("binary", tag);
    }
  }

  /**
   * Reads a byte array from the stream.
   */
  public int readBytes(byte []buffer, int offset, int length)
    throws IOException
  {
    int readLength = 0;

    if (_chunkLength == END_OF_DATA) {
      _chunkLength = 0;
      return -1;
    }
    else if (_chunkLength == 0) {
      int tag = read();

      switch (tag) {
      case 'N':
        return -1;
      
      case 'B':
      case 'b':
        _isLastChunk = tag == 'B';
        _chunkLength = (read() << 8) + read();
        break;
      
      default:
        throw expect("binary", tag);
      }
    }

    while (length > 0) {
      if (_chunkLength > 0) {
        buffer[offset++] = (byte) read();
        _chunkLength--;
        length--;
        readLength++;
      }
      else if (_isLastChunk) {
        if (readLength == 0)
          return -1;
        else {
          _chunkLength = END_OF_DATA;
          return readLength;
        }
      }
      else {
        int tag = read();

        switch (tag) {
        case 'B':
        case 'b':
          _isLastChunk = tag == 'B';
          _chunkLength = (read() << 8) + read();
          break;
      
        default:
          throw expect("binary", tag);
        }
      }
    }
    
    if (readLength == 0)
      return -1;
    else if (_chunkLength > 0 || ! _isLastChunk)
      return readLength;
    else {
      _chunkLength = END_OF_DATA;
      return readLength;
    }
  }

  /**
   * Reads a fault.
   */
  private HashMap readFault()
    throws IOException
  {
    HashMap map = new HashMap();

    int code = read();
    for (; code > 0 && code != 'z'; code = read()) {
      _offset--;
      
      Object key = readObject();
      Object value = readObject();

      if (key != null && value != null)
        map.put(key, value);
    }

    if (code != 'z')
      throw expect("fault", code);

    return map;
  }

  /**
   * Reads an object from the input stream with an expected type.
   */
  public Object readObject(Class cl)
    throws IOException
  {
    if (cl == null || cl == Object.class)
      return readObject();
    
    int tag = _offset < _length ? (_buffer[_offset++] & 0xff) : read();

    switch (tag) {
    case 'N':
      return null;

    case 'M':
    {
      String type = readType();

      // hessian/3bb3
      if ("".equals(type)) {
	Deserializer reader;
	reader = findSerializerFactory().getDeserializer(cl);

	return reader.readMap(this);
      }
      else {
	Deserializer reader;
	reader = findSerializerFactory().getObjectDeserializer(type, cl);

	return reader.readMap(this);
      }
    }

    case 'O':
    {
      readObjectDefinition(cl);

      return readObject(cl);
    }

    case 'o':
    {
      int ref = readInt();
      int size = _classDefs.size();

      if (ref < 0 || size <= ref)
	throw new HessianProtocolException("'" + ref + "' is an unknown class definition");

      ObjectDefinition def = (ObjectDefinition) _classDefs.get(ref);

      return readObjectInstance(cl, def);
    }

    case 'V':
    {
      String type = readType();
      int length = readLength();
      
      Deserializer reader;
      reader = findSerializerFactory().getListDeserializer(type, cl);

      Object v = reader.readList(this, length);

      return v;
    }

    case 'v':
    {
      int ref = readInt();
      String type = (String) _types.get(ref);
      int length = readInt();
      
      Deserializer reader;
      reader = findSerializerFactory().getListDeserializer(type, cl);

      Object v = reader.readLengthList(this, length);

      return v;
    }

    case 'R':
    {
      int ref = parseInt();

      return _refs.get(ref);
    }

    case 'r':
    {
      String type = readType();
      String url = readString();

      return resolveRemote(type, url);
    }

    case REF_BYTE: {
      int ref = read();

      return _refs.get(ref);
    }

    case REF_SHORT: {
      int ref = 256 * read() + read();

      return _refs.get(ref);
    }
    }

    if (tag >= 0)
      _offset--;

    // hessian/3b2i vs hessian/3406
    // return readObject();

    Object value = findSerializerFactory().getDeserializer(cl).readObject(this);
    return value;
  }
  
  /**
   * Reads an arbitrary object from the input stream when the type
   * is unknown.
   */
  public Object readObject()
    throws IOException
  {
    int tag = _offset < _length ? (_buffer[_offset++] & 0xff) : read();

    switch (tag) {
    case 'N':
      return null;
      
    case 'T':
      return Boolean.valueOf(true);
      
    case 'F':
      return Boolean.valueOf(false);

      // direct integer
    case 0x80: case 0x81: case 0x82: case 0x83:
    case 0x84: case 0x85: case 0x86: case 0x87:
    case 0x88: case 0x89: case 0x8a: case 0x8b:
    case 0x8c: case 0x8d: case 0x8e: case 0x8f:
      
    case 0x90: case 0x91: case 0x92: case 0x93:
    case 0x94: case 0x95: case 0x96: case 0x97:
    case 0x98: case 0x99: case 0x9a: case 0x9b:
    case 0x9c: case 0x9d: case 0x9e: case 0x9f:
      
    case 0xa0: case 0xa1: case 0xa2: case 0xa3:
    case 0xa4: case 0xa5: case 0xa6: case 0xa7:
    case 0xa8: case 0xa9: case 0xaa: case 0xab:
    case 0xac: case 0xad: case 0xae: case 0xaf:
      
    case 0xb0: case 0xb1: case 0xb2: case 0xb3:
    case 0xb4: case 0xb5: case 0xb6: case 0xb7:
    case 0xb8: case 0xb9: case 0xba: case 0xbb:
    case 0xbc: case 0xbd: case 0xbe: case 0xbf:
      return Integer.valueOf(tag - INT_ZERO);

      /* byte int */
    case 0xc0: case 0xc1: case 0xc2: case 0xc3:
    case 0xc4: case 0xc5: case 0xc6: case 0xc7:
    case 0xc8: case 0xc9: case 0xca: case 0xcb:
    case 0xcc: case 0xcd: case 0xce: case 0xcf:
      return Integer.valueOf(((tag - INT_BYTE_ZERO) << 8) + read());
      
      /* short int */
    case 0xd0: case 0xd1: case 0xd2: case 0xd3:
    case 0xd4: case 0xd5: case 0xd6: case 0xd7:
      return Integer.valueOf(((tag - INT_SHORT_ZERO) << 16) + 256 * read() + read());
      
    case 'I':
      return Integer.valueOf(parseInt());

      // direct long
    case 0xd8: case 0xd9: case 0xda: case 0xdb:
    case 0xdc: case 0xdd: case 0xde: case 0xdf:
      
    case 0xe0: case 0xe1: case 0xe2: case 0xe3:
    case 0xe4: case 0xe5: case 0xe6: case 0xe7:
    case 0xe8: case 0xe9: case 0xea: case 0xeb:
    case 0xec: case 0xed: case 0xee: case 0xef:
      return Long.valueOf(tag - LONG_ZERO);

      /* byte long */
    case 0xf0: case 0xf1: case 0xf2: case 0xf3:
    case 0xf4: case 0xf5: case 0xf6: case 0xf7:
    case 0xf8: case 0xf9: case 0xfa: case 0xfb:
    case 0xfc: case 0xfd: case 0xfe: case 0xff:
      return Long.valueOf(((tag - LONG_BYTE_ZERO) << 8) + read());
      
      /* short long */
    case 0x38: case 0x39: case 0x3a: case 0x3b:
    case 0x3c: case 0x3d: case 0x3e: case 0x3f:
      return Long.valueOf(((tag - LONG_SHORT_ZERO) << 16) + 256 * read() + read());
      
    case LONG_INT:
      return Long.valueOf(parseInt());
    
    case 'L':
      return Long.valueOf(parseLong());

    case DOUBLE_ZERO:
      return Double.valueOf(0);

    case DOUBLE_ONE:
      return Double.valueOf(1);

    case DOUBLE_BYTE:
      return Double.valueOf((byte) read());

    case DOUBLE_SHORT:
      return Double.valueOf((short) (256 * read() + read()));
      
    case DOUBLE_FLOAT:
      {
	int f = parseInt();

	return Double.valueOf(Float.intBitsToFloat(f));
      }

    case 'D':
      return Double.valueOf(parseDouble());
    
    case 'd':
      return new Date(parseLong());
    
    case 'x':
    case 'X': {
      _isLastChunk = tag == 'X';
      _chunkLength = (read() << 8) + read();

      return parseXML();
    }

    case 's':
    case 'S': {
      _isLastChunk = tag == 'S';
      _chunkLength = (read() << 8) + read();

      int data;
      _sbuf.setLength(0);
      
      while ((data = parseChar()) >= 0)
        _sbuf.append((char) data);

      return _sbuf.toString();
    }

    case 0x00: case 0x01: case 0x02: case 0x03:
    case 0x04: case 0x05: case 0x06: case 0x07:
    case 0x08: case 0x09: case 0x0a: case 0x0b:
    case 0x0c: case 0x0d: case 0x0e: case 0x0f:

    case 0x10: case 0x11: case 0x12: case 0x13:
    case 0x14: case 0x15: case 0x16: case 0x17:
    case 0x18: case 0x19: case 0x1a: case 0x1b:
    case 0x1c: case 0x1d: case 0x1e: case 0x1f:
      {
	_isLastChunk = true;
	_chunkLength = tag - 0x00;

	int data;
	_sbuf.setLength(0);
      
	while ((data = parseChar()) >= 0)
	  _sbuf.append((char) data);

	return _sbuf.toString();
      }

    case 'b':
    case 'B': {
      _isLastChunk = tag == 'B';
      _chunkLength = (read() << 8) + read();

      int data;
      ByteArrayOutputStream bos = new ByteArrayOutputStream();
      
      while ((data = parseByte()) >= 0)
        bos.write(data);

      return bos.toByteArray();
    }

    case 0x20: case 0x21: case 0x22: case 0x23:
    case 0x24: case 0x25: case 0x26: case 0x27:
    case 0x28: case 0x29: case 0x2a: case 0x2b:
    case 0x2c: case 0x2d: case 0x2e: case 0x2f:
      {
	_isLastChunk = true;
	int len = tag - 0x20;
	_chunkLength = 0;

	byte []data = new byte[len];

	for (int i = 0; i < len; i++)
	  data[i] = (byte) read();

	return data;
      }

    case 'V': {
      String type = readType();
      int length = readLength();

      return findSerializerFactory().readList(this, length, type);
    }

      // direct lists
    case 'v': {
      int ref = readInt();
      String type = (String) _types.get(ref);
      int length = readInt();
      
      Deserializer reader;
      reader = findSerializerFactory().getObjectDeserializer(type, null);
      
      return reader.readLengthList(this, length);
    }

    case 'M': {
      String type = readType();

      return findSerializerFactory().readMap(this, type);
    }

    case 'O': {
      readObjectDefinition(null);

      return readObject();
    }

    case 'o': {
      int ref = readInt();

      ObjectDefinition def = (ObjectDefinition) _classDefs.get(ref);

      return readObjectInstance(null, def);
    }

    case 'R': {
      int ref = parseInt();

      return _refs.get(ref);
    }

    case REF_BYTE: {
      int ref = read();

      return _refs.get(ref);
    }

    case REF_SHORT: {
      int ref = 256 * read() + read();

      return _refs.get(ref);
    }
      
    case 'r': {
      String type = readType();
      String url = readString();

      return resolveRemote(type, url);
    }

    default:
      if (tag < 0)
	throw new EOFException("readObject: unexpected end of file");
      else
	throw error("readObject: unknown code " + codeName(tag));
    }
  }

  /**
   * Reads an object definition:
   *
   * <pre>
   * O string <int> (string)* <value>*
   * </pre>
   */
  private void readObjectDefinition(Class cl)
    throws IOException
  {
    String type = readString();
    int len = readInt();

    String []fieldNames = new String[len];
    for (int i = 0; i < len; i++)
      fieldNames[i] = readString();

    ObjectDefinition def = new ObjectDefinition(type, fieldNames);

    if (_classDefs == null)
      _classDefs = new ArrayList();

    _classDefs.add(def);
  }

  private Object readObjectInstance(Class cl, ObjectDefinition def)
    throws IOException
  {
    String type = def.getType();
    String []fieldNames = def.getFieldNames();
    
    if (cl != null) {
      Deserializer reader;
      reader = findSerializerFactory().getObjectDeserializer(type, cl);

      return reader.readObject(this, fieldNames);
    }
    else {
      return findSerializerFactory().readObject(this, type, fieldNames);
    }
  }

  private String readLenString()
    throws IOException
  {
    int len = readInt();
    
    _isLastChunk = true;
    _chunkLength = len;

    _sbuf.setLength(0);
    int ch;
    while ((ch = parseChar()) >= 0)
      _sbuf.append((char) ch);

    return _sbuf.toString();
  }

  private String readLenString(int len)
    throws IOException
  {
    _isLastChunk = true;
    _chunkLength = len;

    _sbuf.setLength(0);
    int ch;
    while ((ch = parseChar()) >= 0)
      _sbuf.append((char) ch);

    return _sbuf.toString();
  }
  
  /**
   * Reads a remote object.
   */
  public Object readRemote()