8.26.2 When a message is received

The following figure shows the trace collection points in WebSocket.

Figure 8‒101: Trace collection points of WebSocket (when a message (data frame) is received)

Figure 8‒102: Trace collection points of WebSocket (when a split message is received by a message handler with a Reader or InputStream type argument)

The following table describes the event IDs, trace levels, trace collection points, and information that can be collected.

Table 8‒136: Details of the trace collection points of WebSocket (when a message is received)
Event ID	No. in the figures^#	Level	Trace acquisition points	Information that you can acquire
Event ID	No. in the figures^#	Level	Trace acquisition points	Interface name	Operation name	Optional
0xE102	5	A	Immediately before the start of processing for the received WebSocket frame	READ	--	--
0xE103	12	A	Immediately after the completion of processing for the received WebSoket frame	READ	--	In a normal state: None In an abnormal state: Exception name
0xE140	6	A	Immediately before the start of processing after receiving a data frame	MESSAGE	One of the following: `onMessage(String)` `onMessage(ByteBuffer)` `onPartialMessage(String)` `onPartialMessage(ByteBuffer)`	--
0xE141	11	A	Immediately after the completion of processing after receiving a data frame	MESSAGE	One of the following: `onMessage(String)` `onMessage(ByteBuffer)` `onPartialMessage(String)` `onPartialMessage(ByteBuffer)`	In a normal state: None In an abnormal state: Exception name
0xE122	7	A	Immediately before invoking a method annotated with `@OnMessage`	Class name of the endpoint	Method name	--
0xE123	8	A	Immediately after the processing of a method annotated with `@OnOpen` is complete	Class name of the endpoint	Method name	In a normal state: None In an abnormal state: Exception name
0xE124	7	A	Immediately before invoking the `onMessage` method of the implementation class of `javax.websocket.MessageHandler.Whole`	Implementation class name of `javax.websocket.MessageHandler.Whole`	Method name	--
0xE125	8	A	Immediately after the processing of the `onMessage` method of the implementation class of `javax.websocket.MessageHandler.Whole` is complete	Implementation class name of `javax.websocket.MessageHandler.Whole`	Method name	In a normal state: None In an abnormal state: Exception name
0xE126	7	A	Immediately before invoking the `onMessage` method of the implementation class of `javax.websocket.MessageHandler.Partial`	Implementation class name of `javax.websocket.MessageHandler.Partial`	Method name	--
0xE127	8	A	Immediately after the processing of the `onMessage` method of the implementation class of `javax.websocket.MessageHandler.Partial` is complete	Implementation class name of `javax.websocket.MessageHandler.Partial`	Method name	In a normal state: None In an abnormal state: Exception name
0xE128	9	A	Immediately before invoking a method annotated with `@OnError` or the `onError` method of the `javax.websocket.Endpoint` implementation class	Class name of the endpoint	Method name	--
0xE129	10	A	Immediately after the processing of the method annotated with `@OnError` or the processing of the `onError` method of the `javax.websocket.Endpoint` implementation class is complete	Class name of the endpoint	Method name	In a normal state: None In an abnormal state: Exception name

Legend:

A: Standard

--: Not applicable

#

Corresponds to the numbers in Figure 8-101 and Figure 8-102.

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