Implement some various code improvements - credit to @sgdc3 - see #58

SaneEconomyCore/src/main/java/org/appledash/saneeconomy/SaneEconomy.java

@@ -1,5 +1,6 @@
 package org.appledash.saneeconomy;
 
+import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
 import com.google.common.io.ByteArrayDataInput;
 import com.google.common.io.ByteArrayDataOutput;
@@ -21,10 +22,7 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 
 import java.io.File;
-import java.util.HashMap;
+import java.util.*;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Optional;
 import java.util.logging.Logger;
 
 /**
@@ -74,29 +72,34 @@ public class SaneEconomy extends SanePlugin implements ISaneEconomy {
             getLogger().info("Not hooking into Vault because it isn't loaded.");
         }
 
+        if (this.getConfig().getBoolean("update-check", true)) {
             versionChecker = new GithubVersionChecker("SaneEconomyCore", this.getDescription().getVersion());
             getServer().getScheduler().scheduleAsyncDelayedTask(this, versionChecker::checkUpdateAvailable);
+        }
 
         getServer().getScheduler().runTaskTimerAsynchronously(this, () -> {
             economyManager.getBackend().reloadTopPlayerBalances();
-        }, 0, (20 * 300) /* Update baltop every 5 minutes */);
+        }, 0, (20 * this.getConfig().getInt("economy.baltop-update-interval", 300)) /* Update baltop every 5 minutes by default */);
 
         if (this.getConfig().getBoolean("multi-server-sync", false)) {
             this.getServer().getPluginManager().registerEvents(new Listener() {
                 @EventHandler
                 public void onTransaction(SaneEconomyTransactionEvent evt) { // Trust me, I'm a doctor.
-                    OfflinePlayer player = evt.getTransaction().getReceiver().tryCastToPlayer();
+                    Set<OfflinePlayer> playersToSync = ImmutableSet.of(evt.getTransaction().getSender().tryCastToPlayer(), evt.getTransaction().getReceiver().tryCastToPlayer());
 
-                    if (player != null && !player.isOnline()) {
                     Player fakeSender = Iterables.getFirst(SaneEconomy.this.getServer().getOnlinePlayers(), null);
 
-                        if (fakeSender != null) {
+                    if (fakeSender == null) {
+                        return;
+                    }
+
+                    playersToSync.stream().filter(p -> p != null && !p.isOnline()).forEach(p -> {
                         ByteArrayDataOutput bado = ByteStreams.newDataOutput();
                         bado.writeUTF("SaneEconomy");
-                            bado.writeUTF("SyncDatabase");
+                        bado.writeUTF("SyncPlayer");
+                        bado.writeUTF(p.getUniqueId().toString());
                         fakeSender.sendPluginMessage(SaneEconomy.this, "BungeeCord", bado.toByteArray());
-                        }
+                    });
-                    }
                 }
             }, this);
             this.getServer().getMessenger().registerIncomingPluginChannel(this, "BungeeCord", (channel, player, bytes) -> {
@@ -110,8 +113,9 @@ public class SaneEconomy extends SanePlugin implements ISaneEconomy {
                 if (subChannel.equals("SaneEconomy")) {
                     String opCode = badi.readUTF();
 
-                    if (opCode.equals("SyncDatabase")) {
+                    if (opCode.equals("SyncPlayer")) {
-                        SaneEconomy.this.getEconomyManager().getBackend().reloadDatabase();
+                        String playerUuid = badi.readUTF();
+                        SaneEconomy.this.getEconomyManager().getBackend().reloadEconomable(String.format("player:%s", playerUuid));
                     } else {
                         SaneEconomy.this.getLogger().warning("Invalid OpCode received on SaneEconomy plugin message channel: " + opCode);
                     }

SaneEconomyCore/src/main/java/org/appledash/saneeconomy/economy/backend/EconomyStorageBackend.java

@@ -36,7 +36,6 @@ public interface EconomyStorageBackend {
 
     /**
      * Get the UUIDs of the players who have the most money, along with how much money they have.
-     * @param amount Maximum number to get.
      * @return Map of player UUIDs to amounts.
      */
     LinkedHashMap<UUID, Double> getTopPlayerBalances();
@@ -46,6 +45,12 @@ public interface EconomyStorageBackend {
      */
     void reloadDatabase();
 
+    /**
+     * Reload data for just the Economable with the given unique identifier.
+     * @param uniqueIdentifier Unique identifier of Economable to reload data for.
+     */
+    void reloadEconomable(String uniqueIdentifier);
+
     /**
      * Reload this backend's top balances.
      */

SaneEconomyCore/src/main/java/org/appledash/saneeconomy/economy/backend/type/EconomyStorageBackendCaching.java

@@ -1,6 +1,7 @@
 package org.appledash.saneeconomy.economy.backend.type;
 
 import com.google.common.collect.ImmutableMap;
+import org.appledash.saneeconomy.SaneEconomy;
 import org.appledash.saneeconomy.economy.backend.EconomyStorageBackend;
 import org.appledash.saneeconomy.economy.economable.Economable;
 import org.appledash.saneeconomy.utils.MapUtil;
@@ -54,4 +55,10 @@ public abstract class EconomyStorageBackendCaching implements EconomyStorageBack
     public Map<String, Double> getAllBalances() {
         return ImmutableMap.copyOf(balances);
     }
+
+    @Override
+    public void reloadEconomable(String uniqueIdentifier) {
+        SaneEconomy.logger().warning("Trying to reload a single Economable from backend which does not support this - " + this.getClass().getSimpleName() + ". Recommend switching to MySQL backend for multi-server support.");
+        this.reloadDatabase();
+    }
 }

SaneEconomyCore/src/main/java/org/appledash/saneeconomy/economy/backend/type/EconomyStorageBackendMySQL.java

@@ -140,4 +140,22 @@ public class EconomyStorageBackendMySQL extends EconomyStorageBackendCaching {
     public void closeConnections() {
         this.dbConn.getConnection().cleanup();
     }
+
+
+    @Override
+    public void reloadEconomable(String uniqueIdentifier) {
+        dbConn.executeAsyncOperation("reload_economable_" + uniqueIdentifier, (conn) -> {
+            try {
+                PreparedStatement ps = conn.prepareStatement(String.format("SELECT balance FROM `%s` WHERE `unique_identifier` = ?", dbConn.getTable("saneeconomy_balances")));
+                ps.setString(1, uniqueIdentifier);
+                ResultSet rs = ps.executeQuery();
+
+                if (rs.next()) {
+                    this.balances.put(uniqueIdentifier, rs.getDouble("balance"));
+                }
+            } catch (SQLException e) {
+                throw new RuntimeException("SQL error has occured", e);
+            }
+        });
+    }
 }

SaneEconomyCore/src/main/java/org/appledash/saneeconomy/listeners/JoinQuitListener.java

@@ -41,15 +41,15 @@ public class JoinQuitListener implements Listener {
         }
 
         /* Update notification */
-        if (player.hasPermission("saneeconomy.update-notify") && plugin.getVersionChecker().isUpdateAvailable()) {
+        if (plugin.getVersionChecker() != null && player.hasPermission("saneeconomy.update-notify") && plugin.getVersionChecker().isUpdateAvailable()) {
             this.plugin.getMessenger().sendMessage(player, "An update is available! The currently-installed version is {1}, but the newest available is {2}. Please go to {3} to update!", plugin.getDescription().getVersion(), plugin.getVersionChecker().getNewestVersion(), GithubVersionChecker.DOWNLOAD_URL);
         }
     }
 
     @EventHandler
     public void onPlayerLogin(AsyncPlayerPreLoginEvent evt) {
-        Bukkit.getServer().getScheduler().scheduleAsyncDelayedTask(plugin, () -> {
+        Bukkit.getServer().getScheduler().runTaskAsynchronously(plugin, () -> {
-            plugin.getEconomyManager().getBackend().reloadDatabase(); // TODO: If servers start to lag when lots of people join, this is why.
+            plugin.getEconomyManager().getBackend().reloadEconomable(String.format("player:%s", evt.getUniqueId())); // TODO: If servers start to lag when lots of people join, this is why.
-        }, 0);
+        });
     }
 }

SaneEconomyCore/src/main/resources/config.yml

@@ -17,6 +17,9 @@ economy:
   start-balance: 0.0
   notify-start-balance: true
   server-account: '$SERVER$'
+  baltop-update-interval: 300
 
+multi-server-sync: false
+update-check: true
 locale-override: false
 debug: false

SaneEconomyCore/src/main/resources/plugin.yml

@@ -1,7 +1,7 @@
 name: SaneEconomy
 author: AppleDash
 main: org.appledash.saneeconomy.SaneEconomy
-version: 0.13.0
+version: ${project.version}
 load: STARTUP
 softdepend: [Vault]
 commands:

SaneEconomyMobKills/src/main/resources/plugin.yml

@@ -1,6 +1,6 @@
 name: SaneEconomyMobKills
 description: A plugin to give players experience when they kill mobs.
-version: 0.1.1
+version: ${project.version}
 author: AppleDash
 main: org.appledash.saneeconomymobkills.SaneEconomyMobKills
 depend: [SaneEconomy]

SaneEconomyOnlineTime/src/main/resources/plugin.yml

@@ -2,5 +2,5 @@ name: SaneEconomyOnlineTime
 main: org.appledash.saneeconomy.onlinetime.SaneEconomyOnlineTime
 description: Pays players for being online!
 author: AppleDash
-version: 0.1.0
+version: ${project.version}
 depend: [SaneEconomy]

SaneEconomySignShop/src/main/resources/plugin.yml

@@ -1,5 +1,5 @@
 name: SaneEconomySignShop
 main: org.appledash.saneeconomysignshop.SaneEconomySignShop
 author: AppleDash
-version: 0.1.5
+version: ${project.version}
 depend: [SaneEconomy]

pom.xml

@@ -62,5 +62,11 @@
                 </configuration>
             </plugin>
         </plugins>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
     </build>
 </project>