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

  public RequestBuffer(ProxyAgentItf proxy) {
    proxyAgent = proxy;
  }
  
  public void put(int key, ProducerMessages req) {
    AgentId to = AgentId.fromString(req.getTarget());
    RequestGroupNot not = (RequestGroupNot) nots.get(to);
    if (not == null) {
      not = new RequestGroupNot();
      nots.put(to, not);
    }
    ClientMessages cm = new ClientMessages(key, req.getRequestId(), req
        .getMessages());
    if (to.getTo() == proxyAgent.getId().getTo()) {
      cm.setPersistent(false);
    }
    if (req.getAsyncSend()) {
      cm.setAsyncSend(true);
    }

View Full Code Here

  public void flush() {
    if (nots.size() > 0) {
      Enumeration ids = nots.keys();
      Enumeration notifs = nots.elements();
      while (notifs.hasMoreElements()) {
        AgentId to = (AgentId) ids.nextElement();
        RequestGroupNot not = (RequestGroupNot) notifs.nextElement();
        if (to.getTo() == proxyAgent.getId().getTo()) {
          not.setPersistent(false);
          proxyAgent.sendNot(to, not);
        } else {
          proxyAgent.sendNot(to, not);
        }

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      AgentId adminId,
      String destClassName,
      byte type,
      Properties properties,
      boolean freerw) throws Exception {
    AgentId destId = null;
    StringBuffer strbuf = new StringBuffer();
    DestinationDesc destDesc = null;


    try {
      destDesc = AdminTopic.createDestinationAndSave(destName, adminId, properties,
                                                     type, destClassName,
                                                     "JoramHelper", strbuf);
    } catch (Exception exc) {
      logger.log(BasicLevel.ERROR, "JoramHelper.createDestination, Cannot create destination " + destName, exc);
      throw exc;
    }
    
    destId = destDesc.getId();
    if (logger.isLoggable(BasicLevel.DEBUG))
      logger.log(BasicLevel.DEBUG, "JoramHelper.createDestination info = " + strbuf.toString());
    strbuf.setLength(0);     


    if (freerw) {
      try {
        AdminTopic.setRightAndSave(new SetReader(null, destId.toString()), null, "-1");
      } catch (Exception exc) {
        if (logger.isLoggable(BasicLevel.ERROR))
          logger.log(BasicLevel.ERROR, "JoramHelper.createDestination, Cannot set FreeReader", exc);
      }
      try {
        AdminTopic.setRightAndSave(new SetWriter(null, destId.toString()), null, "-1");
      } catch (Exception exc) {
        if (logger.isLoggable(BasicLevel.ERROR))
          logger.log(BasicLevel.ERROR, "JoramHelper.createDestination, Cannot set FreeWriter", exc);
      }
    }

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    // Retrieving the persisted messages, if any.
    List persistedMsgs = Message.loadAll(getMsgTxPrefix().toString());


    if (persistedMsgs != null) {
      Message persistedMsg;
      AgentId consId;
      
      while (! persistedMsgs.isEmpty()) {
        persistedMsg = (Message) persistedMsgs.remove(0);
        consId = (AgentId) consumers.get(persistedMsg.getIdentifier());

View Full Code Here


    Enumeration ids = not.getIds();


    String msgId;
    Message message;
    AgentId consId;
    int consCtx;
    DMQManager dmqManager = null;


    if (! ids.hasMoreElements()) {
      // If the deny request is empty, the denying is a contextual one: it
      // requests the denying of all the messages consumed by the denier in
      // the denying context:
      for (Iterator entries = deliveredMsgs.entrySet().iterator(); entries.hasNext();) {
        // Browsing the delivered messages:
        Map.Entry entry = (Map.Entry) entries.next();


        msgId = (String) entry.getKey();
        message = (Message) entry.getValue();


        consId = (AgentId) consumers.get(msgId);
        consCtx = ((Integer) contexts.get(msgId)).intValue();


        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, " -> deny msg " + msgId + "(consId = " + consId + ')');


        // If the current message has been consumed by the denier in the same
        // context: denying it.
        if (consId.equals(from) && consCtx == not.getClientContext()) {
          // state change, so save.
          setSave();
          consumers.remove(msgId);
          contexts.remove(msgId);
          entries.remove();

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   * "denied" for delivery to an other requester, and a new delivery sequence
   * is launched. Messages considered as undeliverable are removed and sent to
   * the DMQ.
   */ 
  protected void doUnknownAgent(UnknownAgent uA) {
    AgentId client = uA.agent;
    Notification not = uA.not;


    // If the notification is not a delivery, doing nothing. 
    if (! (not instanceof QueueMsgReply))
      return;


    String msgId;
    Message message;
    AgentId consId;
    DMQManager dmqManager = null;
    for (Iterator entries = deliveredMsgs.entrySet().iterator(); entries.hasNext();) {
      Map.Entry entry = (Map.Entry) entries.next();


      msgId = (String) entry.getKey();
      message = (Message) entry.getValue();


      consId = (AgentId) consumers.get(msgId);
      // Delivered message has been delivered to the deleted client:
      // denying it.
      if (consId.equals(client)) {
        entries.remove();
        message.setRedelivered();


        // state change, so save.
        setSave();

View Full Code Here

        if (logger.isLoggable(BasicLevel.DEBUG))
          logger.log(BasicLevel.DEBUG, " -> read heartBeat = " + heartBeat);
      }


      GetProxyIdNot gpin = new GetProxyIdNot(identity, inaddr);
      AgentId proxyId;
      try {
        gpin.invoke(AdminTopic.getDefault());
        proxyId = gpin.getProxyId();
      } catch (Exception exc) {
        if (logger.isLoggable(BasicLevel.DEBUG))

View Full Code Here


    Identity identity = (Identity) Identity.soapDecode(identityMap);
    
    GetProxyIdNot gpin = new GetProxyIdNot(identity, null);
    gpin.invoke(AdminTopic.getDefault());
    AgentId proxyId = gpin.getProxyId();
    
    OpenConnectionNot ocn = new OpenConnectionNot(false, heartBeat);  
    ocn.invoke(proxyId);


    StandardConnectionContext cc = (StandardConnectionContext) ocn.getConnectionContext();

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   *
   * @param serverId the id of the agent server
   * @return the <code>AgentId</code> of the JndiServer
   */
  public static AgentId getDefault(short serverId) {
    return new AgentId(
      serverId, serverId,
      AgentId.LocalJndiServiceStamp);
  }

View Full Code Here

   *
   * @param serverId the id of the agent server
   * @return the <code>AgentId</code> of the JndiServer
   */
  public static AgentId getDefault(short serverId) {
    return new AgentId(
      serverId, serverId,
      AgentId.LocalJndiServiceStamp);
  }

View Full Code Here

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