Field Detail

• connection_

  private final HubConnection connection_

• callMap_

  private final java.util.Map callMap_

• random_

  private final java.util.Random random_

• nCalc_

  private volatile int nCalc_

• nCall_

  private volatile int nCall_

• ADD_MTYPE

  private static final java.lang.String ADD_MTYPE

  See Also:

  Constant Field Values

• SUB_MTYPE

  private static final java.lang.String SUB_MTYPE

  See Also:

  Constant Field Values

• MUL_MTYPE

  private static final java.lang.String MUL_MTYPE

  See Also:

  Constant Field Values

• DIV_MTYPE

  private static final java.lang.String DIV_MTYPE

  See Also:

  Constant Field Values

• logger_

  private static final java.util.logging.Logger logger_

• iconUrl_

  private static java.lang.String iconUrl_

• NOTIFY_MODE

  public static final Calculator.SendMode NOTIFY_MODE

  Sends messages using the Notify delivery pattern.

• ASYNCH_MODE

  public static final Calculator.SendMode ASYNCH_MODE

  Sends messages using the Synchronous Call/Response delivery pattern.

• SYNCH_MODE

  public static final Calculator.SendMode SYNCH_MODE

  Sends messages using the Asynchronous Call/Response delivery pattern.

• RANDOM_MODE

  public static final Calculator.SendMode RANDOM_MODE

  Sends messages using a random choice of one of the other modes.

Constructor Detail

• Calculator

  public Calculator​(HubConnection connection,
                    java.util.Random random)
             throws SampException

  Constructor.

  Parameters:

  connection - hub connection

  random - random number generator

  Throws:

  SampException

Method Detail

• sendMessage

  public void sendMessage​(java.lang.String receiverId,
                          Calculator.SendMode mode)
                   throws SampException

  Sends a randomly generated message in a randomly generated way to a given receiver. The receiver should be another calculator client, like this one. If the message is sent according to one of the call/response delivery patterns the response will be checked to ensure that it has the correct value.

  Parameters:

  receiverId - client ID of another Calculator client.

  Throws:

  SampException

• getSendCount

  public int getSendCount()

  Returns the total number of messages sent using any delivery pattern.

  Returns:

  number of sends

• getReceiveCount

  public int getReceiveCount()

  Returns the total number of messages received using any delivery pattern.

  Returns:

  number of receives

• getConnection

  public HubConnection getConnection()

  Returns the hub connection used by this client.

  Returns:

  connection

• flush

  public void flush()

  Waits until all the responses this client is expecting to get have been safely received.

• receiveNotification

  public void receiveNotification​(java.lang.String senderId,
                                  Message msg)

  Description copied from interface: CallableClient
  Receives a message for which no response is required.

  Specified by:

  receiveNotification in interface CallableClient

  Parameters:

  senderId - public ID of sending client

  msg - message

• receiveCall

  public void receiveCall​(java.lang.String senderId,
                          java.lang.String msgId,
                          Message msg)
                   throws SampException

  Description copied from interface: CallableClient
  Receives a message for which a response is required. The implementation must take care to call the hub's reply method at some future point.

  Specified by:

  receiveCall in interface CallableClient

  Parameters:

  senderId - public ID of sending client

  msgId - message identifier for later use with reply

  msg - message

  Throws:

  SampException

• receiveResponse

  public void receiveResponse​(java.lang.String senderId,
                              java.lang.String msgTag,
                              Response response)

  Description copied from interface: CallableClient
  Receives a response to a message previously sent by this client.

  Specified by:

  receiveResponse in interface CallableClient

  Parameters:

  senderId - public ID of responding client

  msgTag - client-defined tag labelling previously-sent message

  response - returned response object

• processCall

  private java.util.Map processCall​(java.lang.String senderId,
                                    Message msg)

  Does the work for both the receiveNotify and receiveCall methods.

  Parameters:

  senderId - sender public ID

  msg - message object

  Returns:

  content of the successful reply's samp.result entry

• nextCall

  private int nextCall()

  Increments and then returns the number of calls so far made by this object.

  Returns:

  next value of the call counter

• createRandomRequest

  private Calculator.CalcRequest createRandomRequest()

  Generates a random calculation request.

  Returns:

  new random request

• getIconUrl

  private static java.lang.String getIconUrl()