private void handleRequestStateChange(VerticalCommand cmd)
throws IMTPException, JADESecurityException, NotFoundException, ServiceException {
Object[] params = cmd.getParams();
AID agentID = (AID) params[0];
AgentState as = (AgentState) params[1];
int newState = Agent.AP_MIN;
if (as.equals(jade.domain.FIPAAgentManagement.AMSAgentDescription.SUSPENDED)) {
newState = Agent.AP_SUSPENDED;
} else if (as.equals(jade.domain.FIPAAgentManagement.AMSAgentDescription.WAITING)) {
newState = Agent.AP_WAITING;
} else if (as.equals(jade.domain.FIPAAgentManagement.AMSAgentDescription.ACTIVE)) {
newState = Agent.AP_ACTIVE;
}
MainContainer impl = myContainer.getMain();
if (impl != null) {
ContainerID cid = impl.getContainerID(agentID);
// Note that since getContainerID() succeeded, targetSlice can't be null
AgentManagementSlice targetSlice = (AgentManagementSlice) getSlice(cid.getName());
try {
targetSlice.changeAgentState(agentID, newState);
} catch (IMTPException imtpe) {
// Try to get a newer slice and repeat...
targetSlice = (AgentManagementSlice) getFreshSlice(cid.getName());
targetSlice.changeAgentState(agentID, newState);
}
} else {
// Do nothing for now, but could also route the command to the main slice, thus enabling
// e.g. AMS replication
}
}
private void bornAgent(
AID name, ContainerID cid, JADEPrincipal principal, Credentials credentials)
throws NameClashException, NotFoundException {
MainContainer impl = myContainer.getMain();
if (impl != null) {
// Retrieve the ownership from the credentials
String ownership = "NONE";
if (credentials != null) {
JADEPrincipal ownerPr = credentials.getOwner();
if (ownerPr != null) {
ownership = ownerPr.getName();
}
}
try {
// If the name is already in the GADT, throws NameClashException
impl.bornAgent(name, cid, principal, ownership, false);
} catch (NameClashException nce) {
// #CUSTOMJ2SE_EXCLUDE_BEGIN
try {
ContainerID oldCid = impl.getContainerID(name);
if (oldCid != null) {
Node n = impl.getContainerNode(oldCid).getNode();
// Perform a non-blocking ping to check...
n.ping(false);
// Ping succeeded: rethrow the NameClashException
throw nce;
} else {
// The old agent is registered with the AMS, but does not live in the platform -->
// cannot check if it still exists
throw nce;
}
} catch (NameClashException nce2) {
// This is the re-thrown NameClashException --> let it through
throw nce2;
} catch (Exception e) {
// Either the old agent disappeared in the meanwhile or the Ping failed: forcibly
// replace the old agent...
impl.bornAgent(name, cid, principal, ownership, true);
}
// #CUSTOMJ2SE_EXCLUDE_END
/*#CUSTOMJ2SE_INCLUDE_BEGIN
try {
//System.out.println("Replacing old agent "+name.getName());
if(myLogger.isLoggable(Logger.INFO))
myLogger.log(Logger.INFO,"Replacing old agent "+name.getName());
dyingAgents.add(name);
((jade.core.AgentManager) impl).kill(name, principal, credentials);
waitUntilDead(name);
impl.bornAgent(name, cid, principal, ownership, false);
}
catch (Exception e) {
dyingAgents.remove(name);
impl.bornAgent(name, cid, principal, ownership, true);
}
#CUSTOMJ2SE_INCLUDE_END*/
}
}
}
private void handleRequestKill(VerticalCommand cmd)
throws IMTPException, JADESecurityException, NotFoundException, ServiceException {
Object[] params = cmd.getParams();
AID agentID = (AID) params[0];
// log("Source Sink consuming command REQUEST_KILL. Name is "+agentID.getName(), 3);
if (myLogger.isLoggable(Logger.CONFIG))
myLogger.log(
Logger.CONFIG,
"Source Sink consuming command REQUEST_KILL. Name is " + agentID.getName());
MainContainer impl = myContainer.getMain();
if (impl != null) {
ContainerID cid = impl.getContainerID(agentID);
// Note that since getContainerID() succeeded, targetSlice can't be null
AgentManagementSlice targetSlice = (AgentManagementSlice) getSlice(cid.getName());
try {
targetSlice.killAgent(agentID, cmd);
} catch (IMTPException imtpe) {
// Try to get a newer slice and repeat...
targetSlice = (AgentManagementSlice) getFreshSlice(cid.getName());
targetSlice.killAgent(agentID, cmd);
}
} else {
// Do nothing for now, but could also route the command to the main slice, thus enabling
// e.g. AMS replication
}
}