From ce76dbc406da1a8fe839b1e311ed699f9d5c7498 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Mon, 6 Jan 2020 23:01:16 +0100
Subject: Start implementing gossip initiator path

---
 .../cloudatlas/agent/modules/GossipGirlState.java  | 112 +++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java

(limited to 'src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java')

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java
new file mode 100644
index 0000000..726a9b2
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/agent/modules/GossipGirlState.java
@@ -0,0 +1,112 @@
+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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