More work on tab completion, see details.. #77

Completed:
- Jail check
- jail clear
- jail createcell
- jail deletecell
- Jail list
- jail listcells
- jail mute

src/main/java/com/graywolf336/jail/command/subcommands/JailCreateCellCommand.java

@@ -1,8 +1,13 @@
 package com.graywolf336.jail.command.subcommands;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.bukkit.util.StringUtil;
 
 import com.graywolf336.jail.JailManager;
 import com.graywolf336.jail.beans.Jail;
@@ -63,4 +68,22 @@ public class JailCreateCellCommand implements Command {
         return true;
     }
 
+    public List<String> provideTabCompletions(JailManager jm, CommandSender sender, String... args) throws Exception {
+        //We shouldn't provide when they want a cell name
+        if(args.length >= 3) return Collections.emptyList();
+        
+        List<String> results = new ArrayList<String>();
+        
+        for(Jail j : jm.getJails()) {
+            if(args.length == 2 && StringUtil.startsWithIgnoreCase(j.getName(), args[1])) {
+                results.add(j.getName());
+            }else {
+                results.add(j.getName());
+            }
+        }
+        
+        Collections.sort(results);
+        
+        return results;
+    }
 }