Examples of fr.dyade.aaa.agent.AgentId

fr.dyade.aaa.agent.AgentId
An AgentId allows for uniquely identifying and localizing an agent throughout the distributed system. It defines variable members describing the identifier and all needed function members to manipulate the structure (creation, serialization, etc).
However before describing the structure of an AgentId we must take into account a second requirement: an agent may be created onto a remote agent server, and the creating entity needs to know the new identifier created for that agent. As agents live in an asynchronous world it is not so easy to get back the identifier from the remote server. We decided instead to make the creating entity responsible for creating the identifier.
The two requirements are then:
- static localization of agents to allow the system to forward notifications ;
- local generation of identifiers for remote agents.
The AgentId is then built of three parts:
- the identification of the agent server hosting the creating agent (from field),
- the identification of the agent server hosting the created agent (to field),
- a stamp, local to the agent server hosting the creating agent (stamp field) ; see AgentIdStamp class.
The three fields form the unique global identifier of the agent, that is two agents may share a common stamp, as long as their from or to fields differ. The to field identifies the agent server hosting the agent, so it is used by the channel to forward notifications to the agent.
@see AgentIdStamp

      logger.log(BasicLevel.DEBUG, "--- " + this + " ClusterQueue.sendToCluster(" + not + ")");


    if (clusters.size() < 2) return;


    for (Iterator e = clusters.keySet().iterator(); e.hasNext();) {
      AgentId id = (AgentId) e.next();
      if (! id.equals(getId()))
        forward(id,not);
    }
  }

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    super.doDeleteNot(not);
  }


  protected void doUnknownAgent(UnknownAgent uA) {
    super.doUnknownAgent(uA);
    AgentId agId = uA.agent;
    Notification not = uA.not;


    if (not instanceof ClusterJoinNot) {
      ClusterJoinNot cT = (ClusterJoinNot) not;
      logger.log(BasicLevel.ERROR, "Cluster join failed: " + uA.agent + " unknown.");

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   */
  protected void setRight(SetRight request,
                       AgentId replyTo,
                       String requestMsgId,
                       String replyMsgId) {
    AgentId user = null;
    if (request.getUserProxId() != null)
      user = AgentId.fromString(request.getUserProxId());


    int right = 0;
    if (request instanceof SetReader)

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   */
  protected void getRights(AgentId from, GetRightsRequestNot not) throws AccessException {
    if (! isAdministrator(from))
      throw new AccessException("ADMIN right not granted");


    AgentId key;
    int right;
    Vector readers = new Vector();
    Vector writers = new Vector();
    for (Enumeration keys = clients.keys(); keys.hasMoreElements();) {
      key = (AgentId) keys.nextElement();

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   * @return the rights set on this destination.
   */
  public String[] getRights() {
    String rigths[] = new String[clients.size()];


    AgentId key;
    int right;


    int i=0;
    for (Enumeration keys = clients.keys(); keys.hasMoreElements();) {
      key = (AgentId) keys.nextElement();
      right = ((Integer) clients.get(key)).intValue();
      rigths[i++] = key.toString() + _rights[right -1];
    }


    return rigths;
  }

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   *
   * @param userid The user's unique identifier.
   * @return the rights set on this destination.
   */
  public String getRight(String userid) {
    AgentId key = AgentId.fromString(userid);
    if (key == null) return userid + ":bad user;";
    Integer right = (Integer) clients.get(key);
    if (right == null) return userid + ":unknown;";


    return userid + _rights[right.intValue() -1];

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      InterceptorsHelper.addInterceptors(interceptors_in, interceptorsIN);
    }
    
    // Browsing the pre-crash contexts:
    ClientContext activeCtx;
    AgentId destId;
    for (Iterator ctxs = contexts.values().iterator(); ctxs.hasNext();) {
      activeCtx = (ClientContext) ctxs.next();
      ctxs.remove();


      // Denying the non acknowledged messages:
      for (Iterator queueIds = activeCtx.getDeliveringQueues(); queueIds.hasNext();) {
        destId = (AgentId) queueIds.next();
        sendNot(destId, new DenyRequest(activeCtx.getId()));


        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, "Denies messages on queue " + destId.toString());
      }


      // Saving the prepared transactions.
      Iterator xids = activeCtx.getTxIds();
      Xid xid;
      XACnxPrepare recoveredPrepare;
      XACnxPrepare prepare;
      while (xids.hasNext()) {
        if (recoveredTransactions == null)
          recoveredTransactions = new Hashtable();


        xid = (Xid) xids.next();


        recoveredPrepare = (XACnxPrepare) recoveredTransactions.get(xid);
        prepare = activeCtx.getTxPrepare(xid);


        if (recoveredPrepare == null)
          recoveredTransactions.put(xid, prepare);
        else {
          recoveredPrepare.getSendings().addAll(prepare.getSendings());
          recoveredPrepare.getAcks().addAll(prepare.getAcks());
        }
      }


      // Deleting the temporary destinations:
      for (Iterator tempDests = activeCtx.getTempDestinations(); tempDests.hasNext();) {
        destId = (AgentId) tempDests.next();
        deleteTemporaryDestination(destId);
  
        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, "Deletes temporary destination " + destId.toString());
      }
    }


    // Retrieving the subscriptions' messages.
    List messages = Message.loadAll(getMsgTxname());

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   */
  private void reactToClientRequest(int key, ProducerMessages req) throws RequestException {
    if (logger.isLoggable(BasicLevel.DEBUG))
      logger.log(BasicLevel.DEBUG, "UserAgent.reactToClientRequest(" + key + ',' + req + ')');


    AgentId destId = AgentId.fromString(req.getTarget());
    if (destId == null)
      throw new RequestException("Request to an undefined destination (null).");


    ProducerMessages pm = req; 
    if (interceptorsIN != null && !interceptorsIN.isEmpty()) {
      org.objectweb.joram.shared.messages.Message m = null;
      Vector msgs = ((ProducerMessages) req).getMessages();
      Vector newMsgs = new Vector();
      for (int i = 0; i < msgs.size(); i++) {
        m = (org.objectweb.joram.shared.messages.Message) msgs.elementAt(i);
        Iterator it = interceptorsIN.iterator();
        while (it.hasNext()) {
          MessageInterceptor interceptor = (MessageInterceptor) it.next();
          if (!interceptor.handle(m)) {
            m = null;
            break;
          }
        }
        if (m != null) {
          newMsgs.add(m);
        } else {
          // send the originals messages to the user DMQ.
          sendToDMQ((org.objectweb.joram.shared.messages.Message) msgs.elementAt(i), MessageErrorConstants.INTERCEPTORS);
        }
      }
      // no message to send. Send reply to the producer.
      if (newMsgs.size() == 0 && !msgs.isEmpty()) { 
        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, "UserAgent.reactToClientRequest : no message to send.");
        if (destId.getTo() == getId().getTo() && !pm.getAsyncSend()) {
          // send producer reply
          sendNot(getId(), new SendReplyNot(key, pm.getRequestId()));
        }
        return;
      }
      //update producer message.
      ((ProducerMessages) pm).setMessages(newMsgs);
      pm = req;
    }


    ClientMessages not = new ClientMessages(key, pm.getRequestId(), pm.getMessages());
    setDmq(not);


    if (destId.getTo() == getId().getTo()) {
      if (logger.isLoggable(BasicLevel.DEBUG))
        logger.log(BasicLevel.DEBUG, " -> local sending");
      not.setPersistent(false);
      not.setExpiration(0L);
      if (pm.getAsyncSend()) {

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   */
  private void reactToClientRequest(int key, ConsumerReceiveRequest req) throws RequestException {    
    if (req.getQueueMode()) {
      ReceiveRequest not = new ReceiveRequest(key, req.getRequestId(), req.getSelector(),
          req.getTimeToLive(), req.getReceiveAck(), null, 1);
      AgentId destId = AgentId.fromString(req.getTarget());
      if (destId == null)
        throw new RequestException("Request to an undefined destination (null).");


      if (destId.getTo() == getId().getTo()) {
        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, " -> local receiving");
        not.setPersistent(false);
        sendNot(destId, not);
      } else {

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                                              req.getSelector(),
                                              0,
                                              false,
                                              req.getMessageIdsToAck(),
                                              req.getMessageCount());    
      AgentId destId = AgentId.fromString(req.getTarget());
      if (destId == null)
        throw new RequestException("Request to an undefined destination (null).");


      if (destId.getTo() == getId().getTo()) {
        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, " -> local sending");
        not.setPersistent(false);
        sendNot(destId, not);
      } else {

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