protected void locationChanged(String agent, String priorLoc, String newLoc) {
if (priorLoc != null) {
if (logger.isDebugEnabled()) {
logger.debug(
"locationChanged:" + " agent=" + agent + " prior=" + priorLoc + " new=" + newLoc);
}
synchronized (suspectedDuplicates) {
if (suspectedDuplicates.containsKey(agent)) {
Map priorLocations = (Map) suspectedDuplicates.get(agent);
if (!priorLocations.containsKey(priorLoc)) {
priorLocations.put(priorLoc, new Long(model.getVersion(agent)));
}
if (priorLocations.containsKey(newLoc)) {
String agentToRemove = selectAgentToRemove(priorLocations);
if (logger.isWarnEnabled()) {
logger.warn(
"Duplicate agent detected, removing duplicate:"
+ " agent="
+ agent
+ " locations="
+ priorLocations.keySet()
+ " removingFrom="
+ agentToRemove);
}
suspectedDuplicates.remove(agent);
restartHelper.killAgent(agent, agentToRemove, model.getCommunityName());
}
} else {
Map priorLocations = new HashMap();
priorLocations.put(priorLoc, new Long(model.getVersion(agent)));
suspectedDuplicates.put(agent, priorLocations);
}
}
}
}
public DuplicateAgentDetector(CommunityStatusModel csm, RestartHelper rh) {
model = csm;
model.addChangeListener(this);
restartHelper = rh;
if (logger.isDebugEnabled()) {
logger.debug("DuplicateAgentDetector started");
}
}
