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package pl.edu.mimuw.cloudatlas.agent.modules;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import pl.edu.mimuw.cloudatlas.agent.messages.NoCoTamMessage;
import pl.edu.mimuw.cloudatlas.model.Attribute;
import pl.edu.mimuw.cloudatlas.model.PathName;
import pl.edu.mimuw.cloudatlas.model.ValueContact;
import pl.edu.mimuw.cloudatlas.model.ValueQuery;
import pl.edu.mimuw.cloudatlas.model.ValueTime;
import pl.edu.mimuw.cloudatlas.model.ZMI;
public class GossipGirlState {
public enum State {
WAIT_FOR_STATE_INITIALIZER,
WAIT_FOR_STATE_RESPONDER,
SEND_HEJKA,
SEND_INFO,
WAIT_FOR_NO_CO_TAM,
WAIT_FOR_FIRST_INFO,
WAIT_FOR_INFO,
ERROR
}
public PathName ourPath;
public ValueContact theirContact;
public long gossipId;
public long theirGossipId;
public long timeOffest;
public State state;
public ZMI hierarchy;
public Map<Attribute, Entry<ValueQuery, ValueTime>> queries;
public ValueTime hejkaSendTimestamp;
public ValueTime hejkaReceiveTimestamp;
public ValueTime noCoTamSendTimestamp;
public ValueTime noCoTamSendReceiveTimestamp;
private Map<PathName, ValueTime> theirZoneTimestamps;
private Map<Attribute, ValueTime> theirQueryTimestamps;
public GossipGirlState(long gossipId, PathName ourPath, ValueContact theirContact, boolean initiating) {
this.gossipId = gossipId;
this.ourPath = ourPath;
this.theirContact = theirContact;
if (initiating) {
state = State.WAIT_FOR_STATE_INITIALIZER;
} else {
state = State.WAIT_FOR_STATE_RESPONDER;
}
}
public void setState(ZMI hierarchy, Map<Attribute, Entry<ValueQuery, ValueTime>> queries) {
switch (state) {
case WAIT_FOR_STATE_INITIALIZER:
this.hierarchy = hierarchy;
this.queries = queries;
state = State.SEND_HEJKA;
break;
case WAIT_FOR_STATE_RESPONDER:
this.hierarchy = hierarchy;
this.queries = queries;
state = State.WAIT_FOR_FIRST_INFO;
break;
default:
System.out.println("ERROR: tried to set gossip state when not expected");
state = State.ERROR;
}
}
public void sentHejka() {
switch (state) {
case SEND_HEJKA:
state = state.WAIT_FOR_NO_CO_TAM;
break;
default:
System.out.println("ERROR: tried to set gossip state when not expected");
state = State.ERROR;
}
}
public void handleNoCoTam(NoCoTamMessage message) {
switch (state) {
case WAIT_FOR_NO_CO_TAM:
theirGossipId = message.getSenderGossipId();
theirZoneTimestamps = message.getZoneTimestamps();
theirQueryTimestamps = message.getQueryTimestamps();
hejkaSendTimestamp = message.getHejkaSendTimestamp();
hejkaReceiveTimestamp = message.getHejkaReceiveTimestamp();
state = State.SEND_INFO;
break;
default:
System.out.println("ERROR: tried to set gossip state when not expected");
state = State.ERROR;
}
}
public List<ZMI> getZMIsToSend() {
return new LinkedList();
}
public void sentInfo() {
switch (state) {
case SEND_INFO:
state = State.WAIT_FOR_INFO;
break;
default:
System.out.println("ERROR: tried to set gossip state when not expected");
state = State.ERROR;
}
}
}
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