returns the source node of the packet concode_field_sep int packetType concode_elem_sep int sequenceNumber concode_elem_sep String sourceNode concode_elem_sep int idTo concode_elem_sep ArrayList<Integer> receivedHelloFrom concode_elem_sep int portNumber concode_elem_sep double speed concode_elem_sep Boolean MPR concode_elem_sep long currentTime concode_elem_sep double xCoordinate concode_elem_sep double yCoordinate concode_elem_sep ArrayList<Node> biDirectionalLinks concode_elem_sep int previousHop concode_elem_sep int id concode_field_sep int getSequenceNumber concode_elem_sep void setPacketType concode_elem_sep int getPortNumber concode_elem_sep double getyCoordinate concode_elem_sep int getId concode_elem_sep ArrayList<Integer> getReceivedHelloFrom concode_elem_sep ArrayList<Node> getBiDirectionalLinks concode_elem_sep void setBiDirectionalLinks concode_elem_sep void setPreviousHop concode_elem_sep void setReceivedHelloFrom concode_elem_sep void setId concode_elem_sep int getPacketType concode_elem_sep void setSourceNode concode_elem_sep long getCurrentTime concode_elem_sep void setxCoordinate concode_elem_sep void setPortNumber concode_elem_sep int getIdTo concode_elem_sep void setMPR concode_elem_sep void setSpeed concode_elem_sep Boolean getMPR concode_elem_sep void setIdTo concode_elem_sep void setSequenceNumber concode_elem_sep void setCurrentTime concode_elem_sep double getSpeed concode_elem_sep double getxCoordinate concode_elem_sep void setyCoordinate concode_elem_sep int getPreviousHop
String function ( ) { return sourceNode ; }