message Content From Map
public final MessageContent messageContentFromMap(String messageType, Map<String, Object> contentMap)
Decodes MessageContent from a message type name and a Map.
This is a convenience method that converts the Map to JSONObject and delegates to messageContentFromJson.
Return
The decoded MessageContent, or null for unknown types or decode failures
Parameters
message Type
The message type (objectName)
content Map
The content fields as a Map