Add method to deserialize the custom map

src/main/java/com/massivecraft/factions/P.java

@@ -10,8 +10,11 @@ import com.massivecraft.factions.integration.Worldguard;
 import com.massivecraft.factions.integration.dynmap.EngineDynmap;
 import com.massivecraft.factions.listeners.*;
 import com.massivecraft.factions.struct.ChatMode;
+import com.massivecraft.factions.struct.Relation;
 import com.massivecraft.factions.util.*;
 import com.massivecraft.factions.zcore.MPlugin;
+import com.massivecraft.factions.zcore.fperms.Access;
+import com.massivecraft.factions.zcore.fperms.Action;
 import com.massivecraft.factions.zcore.util.TextUtil;
 import net.milkbowl.vault.permission.Permission;
 import org.bukkit.Bukkit;
@@ -153,7 +156,10 @@ public class P extends MPlugin {
         Type mapFLocToStringSetType = new TypeToken<Map<FLocation, Set<String>>>() {
         }.getType();
 
-        return new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.VOLATILE).registerTypeAdapter(LazyLocation.class, new MyLocationTypeAdapter()).registerTypeAdapter(mapFLocToStringSetType, new MapFLocToStringSetTypeAdapter()).registerTypeAdapterFactory(EnumTypeAdapter.ENUM_FACTORY);
+        Type accessTypeAdatper = new TypeToken<Map<Relation, Map<Action, Access>>>() {
+        }.getType();
+
+        return new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.VOLATILE).registerTypeAdapter(accessTypeAdatper, new PermissionsMapTypeAdapter()).registerTypeAdapter(LazyLocation.class, new MyLocationTypeAdapter()).registerTypeAdapter(mapFLocToStringSetType, new MapFLocToStringSetTypeAdapter()).registerTypeAdapterFactory(EnumTypeAdapter.ENUM_FACTORY);
     }
 
     @Override

src/main/java/com/massivecraft/factions/util/PermissionsMapTypeAdapter.java

@@ -0,0 +1,51 @@
+package com.massivecraft.factions.util;
+
+import com.google.gson.*;
+import com.massivecraft.factions.P;
+import com.massivecraft.factions.struct.Relation;
+import com.massivecraft.factions.zcore.fperms.Access;
+import com.massivecraft.factions.zcore.fperms.Action;
+
+import java.lang.reflect.Type;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Level;
+
+public class PermissionsMapTypeAdapter implements JsonDeserializer<Map<Relation, Map<Action, Access>>> {
+
+    @Override
+    public Map<Relation, Map<Action, Access>> deserialize(JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException {
+
+        try {
+            JsonObject obj = json.getAsJsonObject();
+            if (obj == null) {
+                return null;
+            }
+
+            Map<Relation, Map<Action, Access>> permissionsMap = new ConcurrentHashMap<>();
+
+            // Top level is Relation
+            for (Map.Entry<String, JsonElement> entry : obj.entrySet()) {
+                Relation relation = Relation.fromString(entry.getKey());
+
+                // Second level is the map between action -> access
+                for (Map.Entry<String, JsonElement> entry2 : entry.getValue().getAsJsonObject().entrySet()) {
+                    Map<Action, Access> accessMap = new HashMap<>();
+                    Action action = Action.fromString(entry2.getKey());
+                    Access access = Access.fromString(entry2.getValue().getAsString());
+                    accessMap.put(action, access);
+
+                    permissionsMap.put(relation, accessMap);
+                }
+            }
+
+            return permissionsMap;
+
+        } catch (Exception ex) {
+            ex.printStackTrace();
+            P.p.log(Level.WARNING, "Error encountered while deserializing a Map of FLocations to String Sets.");
+            return null;
+        }
+    }
+}

src/main/java/com/massivecraft/factions/zcore/fperms/Access.java

@@ -19,4 +19,10 @@ public enum Access {
 
         return null;
     }
+
+
+    @Override
+    public String toString() {
+        return name();
+    }
 }

src/main/java/com/massivecraft/factions/zcore/fperms/Action.java

@@ -48,4 +48,9 @@ public enum Action {
 
         return null;
     }
+
+    @Override
+    public String toString() {
+        return name;
+    }
 }