The social cloud maintains a “Logs” entry for each existing
session in CloudMoV, with the session ID as the primary key
and an array list as the value, which corresponds to individual
messages in this session. When a user in a session posts a comment,
this message is first sent to his VM surrogate, which further
injects the message into the social cloud via another Servlet
listener. Themessage is stored as a “Message” entry in the social