Add a /balance command

src/main/java/us/camin/EconomyCommand.java

@@ -0,0 +1,45 @@
+package us.camin;
+
+/*
+    This file is part of Caminus
+
+    Caminus is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Caminus is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Caminus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import java.io.IOException;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class EconomyCommand implements CommandExecutor {
+    private Plugin m_plugin;
+
+    public EconomyCommand(Plugin p) {
+        m_plugin = p;
+    }
+
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] split) {
+        String name = sender.getName();
+        double balance;
+        try {
+            balance = m_plugin.api().getBalance(name);
+            sender.sendMessage("You have "+balance+" grist");
+        } catch (IOException e) {
+            sender.sendMessage("Error: "+e.getMessage());
+        }
+        return true;
+    }
+}

src/main/resources/plugin.yml

@@ -12,6 +12,9 @@ commands:
     vomit:
         description: Causes a player to vomit blocks
         usage: /<command> player quantity item
+    balance:
+        description: Displays your balance
+        usage: /<command>
 permissions:
     caminus.*:
         default: op