Add /ess usermap cache sub-command

Allows to view the number of known UUIDs as
well as name to UUID pairs.

Author: JRoy

Essentials/src/main/java/com/earth2me/essentials/EssentialsUpgrade.java

@@ -963,7 +963,7 @@ public void generateUidCache() {
                                 }
                             }
 
-                            uuids.put(uuid, config.getLong("timestamps.logout", 0L));
+                            uuids.put(uuid, time);
                             nameToUuidMap.put(name, uuid);
                         }
                     } catch (IllegalArgumentException | IndexOutOfBoundsException ignored) {

Essentials/src/main/java/com/earth2me/essentials/commands/Commandessentials.java

@@ -700,6 +700,8 @@ private void runUserMap(final CommandSource sender, final String[] args) {
                     }
                     ess.getLogger().info("Found " + total + " orphaned userdata files.");
                 });
+            } else if (args[1].equalsIgnoreCase("cache")) {
+                sender.sendMessage(tl("usermapKnown", ess.getUsers().getAllUserUUIDs().size(), ess.getUsers().getNameCache().size()));
             } else {
                 try {
                     final UUID uuid = UUID.fromString(args[1]);

Essentials/src/main/resources/messages.properties

@@ -1462,6 +1462,7 @@ userIsAwaySelfWithMessage=\u00a77You are now AFK.
 userIsNotAwaySelf=\u00a77You are no longer AFK.
 userJailed=\u00a76You have been jailed\!
 usermapEntry=\u00a7c{0} \u00a76is mapped to \u00a7c{1}\u00a76.
+usermapKnown=\u00a76There are \u00a7c{0} \u00a76known users to the user cache with \u00a7c{1} \u00a76name to UUID pairs.
 usermapPurge=\u00a76Checking for files in userdata that are not mapped, results will be logged to console. Destructive Mode: {0}
 usermapSize=\u00a76Current cached users in user map is \u00a7c{0}\u00a76/\u00a7c{1}\u00a76/\u00a7c{2}\u00a76.
 userUnknown=\u00a74Warning\: The user ''\u00a7c{0}\u00a74'' has never joined this server.