Class: Vertx::WebSocket

Inherits:
Object
  • Object
show all
Includes:
WebSocketBase
Defined in:
/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb

Overview

Represents a client-side WebSocket.

Constant Summary

@@j_api_type =
Object.new

Class Method Summary (collapse)

Instance Method Summary (collapse)

Class Method Details

+ (Boolean) accept?(obj)

Returns:

  • (Boolean)


24
25
26
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 24

def @@j_api_type.accept?(obj)
  obj.class == WebSocket
end

+ (Object) j_api_type



33
34
35
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 33

def self.j_api_type
  @@j_api_type
end

+ (Object) j_class



36
37
38
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 36

def self.j_class
  Java::IoVertxCoreHttp::WebSocket.java_class
end

+ (Object) unwrap(obj)



30
31
32
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 30

def @@j_api_type.unwrap(obj)
  obj.j_del
end

+ (Object) wrap(obj)



27
28
29
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 27

def @@j_api_type.wrap(obj)
  WebSocket.new(obj)
end

Instance Method Details

- (String) binary_handler_id

When a WebSocket is created it automatically registers an event handler with the event bus - the ID of that handler is given by this method.

Given this ID, a different event loop can send a binary frame to that event handler using the event bus and that buffer will be received by this instance in its own event loop and written to the underlying connection. This allows you to write data to other WebSockets which are owned by different event loops.

Returns:

  • (String)
    the binary handler id

Raises:

  • (ArgumentError)


92
93
94
95
96
97
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 92

def binary_handler_id
  if !block_given?
    return @j_del.java_method(:binaryHandlerID, []).call()
  end
  raise ArgumentError, "Invalid arguments when calling binary_handler_id()"
end

- (self) binary_message_handler { ... }

Set a binary message handler on the connection. This handler serves a similar purpose to #handler except that if a message comes into the socket in multiple frames, the data from the frames will be aggregated into a single buffer before calling the handler (using Vertx::WebSocketFrame#is_final to find the boundaries).

Yields:

  • the handler

Returns:

  • (self)

Raises:

  • (ArgumentError)


171
172
173
174
175
176
177
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 171

def binary_message_handler
  if block_given?
    @j_del.java_method(:binaryMessageHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.safe_create(event,::Vertx::Buffer)) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling binary_message_handler()"
end

- (void) close(statusCode = nil, reason = nil)

This method returns an undefined value.

Close sending a close frame with specified status code and reason. You can give a look at various close payloads here: RFC6455 section 7.4.1

No more messages can be sent.

Parameters:

  • statusCode (Fixnum) (defaults to: nil)
    Status code
  • reason (String) (defaults to: nil)
    reason of closure

Raises:

  • (ArgumentError)


203
204
205
206
207
208
209
210
211
212
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 203

def close(statusCode=nil,reason=nil)
  if !block_given? && statusCode == nil && reason == nil
    return @j_del.java_method(:close, []).call()
  elsif statusCode.class == Fixnum && !block_given? && reason == nil
    return @j_del.java_method(:close, [Java::short.java_class]).call(::Vertx::Util::Utils.to_short(statusCode))
  elsif statusCode.class == Fixnum && reason.class == String && !block_given?
    return @j_del.java_method(:close, [Java::short.java_class,Java::java.lang.String.java_class]).call(::Vertx::Util::Utils.to_short(statusCode),reason)
  end
  raise ArgumentError, "Invalid arguments when calling close(#{statusCode},#{reason})"
end

- (self) close_handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


366
367
368
369
370
371
372
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 366

def close_handler
  if block_given?
    @j_del.java_method(:closeHandler, [Java::IoVertxCore::Handler.java_class]).call(Proc.new { yield })
    return self
  end
  raise ArgumentError, "Invalid arguments when calling close_handler()"
end

- (self) drain_handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


312
313
314
315
316
317
318
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 312

def drain_handler
  if block_given?
    @j_del.java_method(:drainHandler, [Java::IoVertxCore::Handler.java_class]).call(Proc.new { yield })
    return self
  end
  raise ArgumentError, "Invalid arguments when calling drain_handler()"
end

- (void) end(t = nil)

This method returns an undefined value.

Same as Vertx::WebSocketBase#end but writes some data to the stream before ending.

Parameters:

Raises:

  • (ArgumentError)


42
43
44
45
46
47
48
49
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 42

def end(t=nil)
  if !block_given? && t == nil
    return @j_del.java_method(:end, []).call()
  elsif t.class.method_defined?(:j_del) && !block_given?
    return @j_del.java_method(:end, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(t.j_del)
  end
  raise ArgumentError, "Invalid arguments when calling end(#{t})"
end

- (self) end_handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


285
286
287
288
289
290
291
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 285

def end_handler
  if block_given?
    @j_del.java_method(:endHandler, [Java::IoVertxCore::Handler.java_class]).call(Proc.new { yield })
    return self
  end
  raise ArgumentError, "Invalid arguments when calling end_handler()"
end

- (self) exception_handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


242
243
244
245
246
247
248
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 242

def exception_handler
  if block_given?
    @j_del.java_method(:exceptionHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.from_throwable(event)) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling exception_handler()"
end

- (self) fetch(amount = nil)

Parameters:

  • amount (Fixnum) (defaults to: nil)

Returns:

  • (self)

Raises:

  • (ArgumentError)


276
277
278
279
280
281
282
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 276

def fetch(amount=nil)
  if amount.class == Fixnum && !block_given?
    @j_del.java_method(:fetch, [Java::long.java_class]).call(amount)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling fetch(#{amount})"
end

- (self) frame_handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


375
376
377
378
379
380
381
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 375

def frame_handler
  if block_given?
    @j_del.java_method(:frameHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.safe_create(event,::Vertx::WebSocketFrame)) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling frame_handler()"
end

- (self) handler { ... }

Yields:

Returns:

  • (self)

Raises:

  • (ArgumentError)


251
252
253
254
255
256
257
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 251

def handler
  if block_given?
    @j_del.java_method(:handler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.safe_create(event,::Vertx::Buffer)) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling handler()"
end

- (::Vertx::SocketAddress) local_address

Returns the local address for this socket

Returns:

Raises:

  • (ArgumentError)


224
225
226
227
228
229
230
231
232
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 224

def local_address
  if !block_given?
    if @cached_local_address != nil
      return @cached_local_address
    end
    return @cached_local_address = ::Vertx::Util::Utils.safe_create(@j_del.java_method(:localAddress, []).call(),::Vertx::SocketAddress)
  end
  raise ArgumentError, "Invalid arguments when calling local_address()"
end

- (self) pause

Returns:

  • (self)

Raises:

  • (ArgumentError)


259
260
261
262
263
264
265
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 259

def pause
  if !block_given?
    @j_del.java_method(:pause, []).call()
    return self
  end
  raise ArgumentError, "Invalid arguments when calling pause()"
end

- (::Vertx::Pipe) pipe

Pause this stream and return a to transfer the elements of this stream to a destination .

The stream will be resumed when the pipe will be wired to a WriteStream.

Returns:

Raises:

  • (ArgumentError)


62
63
64
65
66
67
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 62

def pipe
  if !block_given?
    return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:pipe, []).call(),::Vertx::Pipe,::Vertx::Buffer.j_api_type)
  end
  raise ArgumentError, "Invalid arguments when calling pipe()"
end

- (void) pipe_to(dst = nil) { ... }

This method returns an undefined value.

Pipe this ReadStream to the WriteStream.

Elements emitted by this stream will be written to the write stream until this stream ends or fails.

Once this stream has ended or failed, the write stream will be ended and the handler will be called with the result.

Parameters:

Yields:

Raises:

  • (ArgumentError)


77
78
79
80
81
82
83
84
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 77

def pipe_to(dst=nil)
  if dst.class.method_defined?(:j_del) && !block_given?
    return @j_del.java_method(:pipeTo, [Java::IoVertxCoreStreams::WriteStream.java_class]).call(dst.j_del)
  elsif dst.class.method_defined?(:j_del) && block_given?
    return @j_del.java_method(:pipeTo, [Java::IoVertxCoreStreams::WriteStream.java_class,Java::IoVertxCore::Handler.java_class]).call(dst.j_del,(Proc.new { |ar| yield(ar.failed ? ar.cause : nil) }))
  end
  raise ArgumentError, "Invalid arguments when calling pipe_to(#{dst})"
end

- (self) pong_handler { ... }

Set a pong frame handler on the connection. This handler will be invoked every time a pong frame is received on the server, and can be used by both clients and servers since the RFC 6455 section 5.5.2 and section 5.5.3 do not specify whether the client or server sends a ping.

Pong frames may be at most 125 bytes (octets).

There is no ping handler since ping frames should immediately be responded to with a pong frame with identical content

Pong frames may be received unsolicited.

Yields:

  • the handler

Returns:

  • (self)

Raises:

  • (ArgumentError)


189
190
191
192
193
194
195
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 189

def pong_handler
  if block_given?
    @j_del.java_method(:pongHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.safe_create(event,::Vertx::Buffer)) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling pong_handler()"
end

- (::Vertx::SocketAddress) remote_address

Returns the remote address for this socket

Returns:

Raises:

  • (ArgumentError)


214
215
216
217
218
219
220
221
222
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 214

def remote_address
  if !block_given?
    if @cached_remote_address != nil
      return @cached_remote_address
    end
    return @cached_remote_address = ::Vertx::Util::Utils.safe_create(@j_del.java_method(:remoteAddress, []).call(),::Vertx::SocketAddress)
  end
  raise ArgumentError, "Invalid arguments when calling remote_address()"
end

- (self) resume

Returns:

  • (self)

Raises:

  • (ArgumentError)


267
268
269
270
271
272
273
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 267

def resume
  if !block_given?
    @j_del.java_method(:resume, []).call()
    return self
  end
  raise ArgumentError, "Invalid arguments when calling resume()"
end

- (self) set_write_queue_max_size(maxSize = nil)

Parameters:

  • maxSize (Fixnum) (defaults to: nil)

Returns:

  • (self)

Raises:

  • (ArgumentError)


303
304
305
306
307
308
309
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 303

def set_write_queue_max_size(maxSize=nil)
  if maxSize.class == Fixnum && !block_given?
    @j_del.java_method(:setWriteQueueMaxSize, [Java::int.java_class]).call(maxSize)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling set_write_queue_max_size(#{maxSize})"
end

- (true, false) ssl?

Returns true if this HttpConnection is encrypted via SSL/TLS.

Returns:

  • (true, false)
    true if this HttpConnection is encrypted via SSL/TLS.

Raises:

  • (ArgumentError)


234
235
236
237
238
239
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 234

def ssl?
  if !block_given?
    return @j_del.java_method(:isSsl, []).call()
  end
  raise ArgumentError, "Invalid arguments when calling ssl?()"
end

- (String) sub_protocol

Returns the WebSocket sub protocol selected by the WebSocket handshake.

On the server, the value will be null when the handler receives the websocket callback as the handshake will not be completed yet.

Returns:

  • (String)

Raises:

  • (ArgumentError)


116
117
118
119
120
121
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 116

def sub_protocol
  if !block_given?
    return @j_del.java_method(:subProtocol, []).call()
  end
  raise ArgumentError, "Invalid arguments when calling sub_protocol()"
end

- (String) text_handler_id

When a WebSocket is created it automatically registers an event handler with the eventbus, the ID of that handler is given by textHandlerID.

Given this ID, a different event loop can send a text frame to that event handler using the event bus and that buffer will be received by this instance in its own event loop and written to the underlying connection. This allows you to write data to other WebSockets which are owned by different event loops.

Returns:

  • (String)

Raises:

  • (ArgumentError)


105
106
107
108
109
110
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 105

def text_handler_id
  if !block_given?
    return @j_del.java_method(:textHandlerID, []).call()
  end
  raise ArgumentError, "Invalid arguments when calling text_handler_id()"
end

- (self) text_message_handler { ... }

Set a text message handler on the connection. This handler will be called similar to the , but the buffer will be converted to a String first

Yields:

  • the handler

Returns:

  • (self)

Raises:

  • (ArgumentError)


159
160
161
162
163
164
165
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 159

def text_message_handler
  if block_given?
    @j_del.java_method(:textMessageHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(event) }))
    return self
  end
  raise ArgumentError, "Invalid arguments when calling text_message_handler()"
end

- (self) write(data = nil)

Parameters:

Returns:

  • (self)

Raises:

  • (ArgumentError)


294
295
296
297
298
299
300
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 294

def write(data=nil)
  if data.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:write, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(data.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write(#{data})"
end

- (self) write_binary_message(data = nil)

Parameters:

Returns:

  • (self)

Raises:

  • (ArgumentError)


348
349
350
351
352
353
354
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 348

def write_binary_message(data=nil)
  if data.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:writeBinaryMessage, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(data.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_binary_message(#{data})"
end

- (self) write_final_binary_frame(data = nil)

Parameters:

Returns:

  • (self)

Raises:

  • (ArgumentError)


339
340
341
342
343
344
345
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 339

def write_final_binary_frame(data=nil)
  if data.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:writeFinalBinaryFrame, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(data.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_final_binary_frame(#{data})"
end

- (self) write_final_text_frame(text = nil)

Parameters:

  • text (String) (defaults to: nil)

Returns:

  • (self)

Raises:

  • (ArgumentError)


330
331
332
333
334
335
336
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 330

def write_final_text_frame(text=nil)
  if text.class == String && !block_given?
    @j_del.java_method(:writeFinalTextFrame, [Java::java.lang.String.java_class]).call(text)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_final_text_frame(#{text})"
end

- (self) write_frame(frame = nil)

Parameters:

Returns:

  • (self)

Raises:

  • (ArgumentError)


321
322
323
324
325
326
327
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 321

def write_frame(frame=nil)
  if frame.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:writeFrame, [Java::IoVertxCoreHttp::WebSocketFrame.java_class]).call(frame.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_frame(#{frame})"
end

- (self) write_ping(data = nil)

Writes a ping frame to the connection. This will be written in a single frame. Ping frames may be at most 125 bytes (octets).

This method should not be used to write application data and should only be used for implementing a keep alive or to ensure the client is still responsive, see RFC 6455 Section section 5.5.2.

There is no handler for ping frames because RFC 6455 clearly states that the only response to a ping frame is a pong frame with identical contents.

Parameters:

  • data (::Vertx::Buffer) (defaults to: nil)
    the data to write, may be at most 125 bytes

Returns:

  • (self)

Raises:

  • (ArgumentError)


131
132
133
134
135
136
137
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 131

def write_ping(data=nil)
  if data.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:writePing, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(data.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_ping(#{data})"
end

- (self) write_pong(data = nil)

Writes a pong frame to the connection. This will be written in a single frame. Pong frames may be at most 125 bytes (octets).

This method should not be used to write application data and should only be used for implementing a keep alive or to ensure the client is still responsive, see RFC 6455 section 5.5.2.

There is no need to manually write a pong frame, as the server and client both handle responding to a ping from with a pong from automatically and this is exposed to users. RFC 6455 section 5.5.3 states that pongs may be sent unsolicited in order to implement a one way heartbeat.

Parameters:

  • data (::Vertx::Buffer) (defaults to: nil)
    the data to write, may be at most 125 bytes

Returns:

  • (self)

Raises:

  • (ArgumentError)


148
149
150
151
152
153
154
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 148

def write_pong(data=nil)
  if data.class.method_defined?(:j_del) && !block_given?
    @j_del.java_method(:writePong, [Java::IoVertxCoreBuffer::Buffer.java_class]).call(data.j_del)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_pong(#{data})"
end

- (true, false) write_queue_full?

This will return true if there are more bytes in the write queue than the value set using #set_write_queue_max_size

Returns:

  • (true, false)
    true if write queue is full

Raises:

  • (ArgumentError)


52
53
54
55
56
57
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 52

def write_queue_full?
  if !block_given?
    return @j_del.java_method(:writeQueueFull, []).call()
  end
  raise ArgumentError, "Invalid arguments when calling write_queue_full?()"
end

- (self) write_text_message(text = nil)

Parameters:

  • text (String) (defaults to: nil)

Returns:

  • (self)

Raises:

  • (ArgumentError)


357
358
359
360
361
362
363
# File '/Users/julien/java/vertx-aggregator/modules/vertx-lang-ruby/vertx-lang-ruby/target/classes/vertx/web_socket.rb', line 357

def write_text_message(text=nil)
  if text.class == String && !block_given?
    @j_del.java_method(:writeTextMessage, [Java::java.lang.String.java_class]).call(text)
    return self
  end
  raise ArgumentError, "Invalid arguments when calling write_text_message(#{text})"
end