/**
   * Initializes the service implementation, and puts it in a sate where it could interoperate with
   * other services. It is strongly recomended that properties in this Map be mapped to property
   * names as specified by <tt>AccountProperties</tt>.
   *
   * @param userID the user id of the ssh account we're currently initializing
   * @param accountID the identifier of the account that this protocol provider represents.
   * @see net.java.sip.communicator.service.protocol.AccountID
   */
  protected void initialize(String userID, AccountID accountID) {
    synchronized (initializationLock) {
      this.accountID = accountID;

      // initialize the presence operationset
      OperationSetPersistentPresenceSSHImpl persistentPresence =
          new OperationSetPersistentPresenceSSHImpl(this);

      supportedOperationSets.put(
          OperationSetPersistentPresence.class.getName(), persistentPresence);

      // register it once again for those that simply need presence and
      // won't be smart enough to check for a persistent presence
      // alternative
      supportedOperationSets.put(OperationSetPresence.class.getName(), persistentPresence);

      // initialize the IM operation set
      basicInstantMessaging = new OperationSetBasicInstantMessagingSSHImpl(this);

      supportedOperationSets.put(
          OperationSetBasicInstantMessaging.class.getName(), basicInstantMessaging);

      // initialze the file transfer operation set
      fileTranfer = new OperationSetFileTransferSSHImpl(this);

      supportedOperationSets.put(OperationSetFileTransfer.class.getName(), fileTranfer);

      isInitialized = true;
    }
  }
 /**
  * Returns an array containing all operation sets supported by the current implementation.
  *
  * @return a java.util.Map containing instance of all supported operation sets mapped against
  *     their class names (e.g. OperationSetPresence.class.getName()) .
  */
 public Map getSupportedOperationSets() {
   // Copy the map so that the caller is not able to modify it.
   return (Map) supportedOperationSets.clone();
 }