Examples of jade.core.UnreachableException

jade.core.UnreachableException
This exception is thrown when some agent container cannot be contacted. @author Giovanni Rimassa - Universita` di Parma @version $Date: 2003-11-18 14:23:42 +0100 (mar, 18 nov 2003) $ $Revision: 4548 $

                    myHelper = (MessagingSlice) getSlice(myHelperName);
                }


                deliverUntilOK(msg, receiverID);
            } catch (IMTPException imtpe) {
                throw new UnreachableException("Unreachable network node", imtpe);
            } catch (ServiceException se) {
                throw new UnreachableException("Unreachable service slice:", se);
            }
        }

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   */
  private byte[] dispatchDirectly(List destTAs, byte[] commandPayload, boolean requireFreshConnection) throws UnreachableException {
    
    // Loop on destinaltion addresses (No need to check again
    // that the list of addresses is not-null and not-empty)
    UnreachableException lastException = null;
    for (int i = 0; i < destTAs.size(); i++) {
      try {
        return send((TransportAddress) destTAs.get(i), commandPayload, requireFreshConnection);
      } 
      catch (UnreachableException ue) {

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      } 
      else    // UnreachableException (the Command was sent to the router,
        // but the final destination was unreachable from there)
        // --> throw an UnreachableException
        if (exception.equals("jade.core.UnreachableException")) {
          throw new UnreachableException((String) response.getParamAt(1));
        } 
    } 
  }

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    // Get the ICPs suitable for the given TransportAddress.
    List list = (List) icps.get(ta.getProto().toLowerCase());
    
    if (list == null) {
      throw new UnreachableException("no ICP suitable for protocol "+ta.getProto()+".");
      
    } 
    
    ICPException lastException = null;
    for (int i = 0; i < list.size(); i++) {
      try {
        return ((ICP) list.get(i)).deliverCommand(ta, commandPayload, requireFreshConnection);
      } 
      catch (ICPException icpe) {
        lastException = icpe;
        // DEBUG
        // Print a warning and try next address
        //System.out.println("Warning: can't deliver command to "+ta+". "+icpe.getMessage());
      } 
    } 
    
    throw new UnreachableException("ICPException delivering command to address "+ta+".", lastException);
  }

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        List   destTAs = (List) command.getParamAt(1);
        String origin = (String) command.getParamAt(2);
        
        if (origin.equals(name)) {
          // The forwarding mechanism is looping.
          response = buildExceptionResponse(new UnreachableException("destination unreachable (and forward loop)."));
        } 
        else {
          try {
            response = dispatchSerializedCommand(destTAs, originalPayload, false, origin);
          }

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        else if(name.equals(AgentManagementSlice.KILL_CONTAINER)) {
          handleKillContainer(cmd);
        }
      }
      catch(IMTPException imtpe) {
        cmd.setReturnValue(new UnreachableException("Remote container is unreachable", imtpe));
      }
      catch(NotFoundException nfe) {
        cmd.setReturnValue(nfe);
      }
      catch(NameClashException nce) {
        cmd.setReturnValue(nce);
      }
      catch(JADESecurityException ae) {
        cmd.setReturnValue(ae);
      }
      catch(ServiceException se) {
        cmd.setReturnValue(new UnreachableException("A Service Exception occurred", se));
      }


    }

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Related Classes of jade.core.UnreachableException

jade.core.management.BEAgentManagementService$CommandTargetSink

jade.core.messaging.LightMessagingService$ServiceComponent

jade.imtp.leap.CommandDispatcher

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