org.yamcs.web.websocket

Interface WebSocketDecoder

All Known Implementing Classes:

JsonDecoder, ProtobufDecoder

public interface WebSocketDecoder

Used to indicate to the WebSocketServerHandler what type of message can be decoded in a specific media representation.

Current implementations need to at least support decoding the envelope, and are assumed to support all operations. In the future, we could break the API in two (1. envelope, 2. payload) if we ever get to a point of needing that.

Method Summary

Modifier and Type	Method and Description
WebSocketDecodeContext	decodeMessage(InputStream in) Decodes the common wrapper fields of an incoming web socket message.
<T extends com.google.protobuf.MessageLite.Builder> T	decodeMessageData(WebSocketDecodeContext ctx, io.protostuff.Schema<T> dataSchema) Decodes any data that may be wrapped by the incoming web socket message

Method Detail

decodeMessage

WebSocketDecodeContext decodeMessage(InputStream in)
                              throws WebSocketException

Decodes the common wrapper fields of an incoming web socket message. The actual data can be set implementation-specific and does not necessarily need to be processed here, since a second call will be made with an appropriately determined schema.

Throws:

WebSocketException

decodeMessageData

<T extends com.google.protobuf.MessageLite.Builder> T decodeMessageData(WebSocketDecodeContext ctx,
                                                                        io.protostuff.Schema<T> dataSchema)
                                                                 throws WebSocketException

Decodes any data that may be wrapped by the incoming web socket message

Throws:

WebSocketException