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package net.ess3.extra;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Arrays;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.logging.Level;
import net.ess3.api.ICommandHandler;
import net.ess3.api.IEssentials;
import net.ess3.bukkit.BukkitPlugin;
import net.ess3.commands.EssentialsCommandHandler;
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandMap;
import org.bukkit.command.CommandSender;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.SimplePluginManager;
import org.bukkit.plugin.java.JavaPlugin;
public class EssentialsExtra extends JavaPlugin
{
private CommandMap commandMap;
@Override
public void onEnable()
{
final IEssentials ess = ((BukkitPlugin)getServer().getPluginManager().getPlugin("Essentials-3")).getEssentials();
File commandDir = new File(ess.getPlugin().getDataFolder(), "extras");
commandDir.mkdir();
URL[] urls = null;
try
{
PluginManager pm = Bukkit.getServer().getPluginManager();
Field f = SimplePluginManager.class.getDeclaredField("commandMap");
f.setAccessible(true);
commandMap = (CommandMap)f.get(pm);
JarFile jar = new JarFile(getFile());
Enumeration<JarEntry> entries = jar.entries();
while (entries.hasMoreElements())
{
JarEntry entry = entries.nextElement();
String name = entry.getName();
if (name.startsWith("Command") && name.endsWith(".class"))
{
File outFile = new File(commandDir, name);
if (!outFile.exists())
{
InputStream is = jar.getInputStream(entry);
OutputStream os = new FileOutputStream(outFile);
byte[] buffer = new byte[4096];
int length;
while ((length = is.read(buffer)) > 0)
{
os.write(buffer, 0, length);
}
os.close();
is.close();
}
}
}
urls = new URL[]
{
commandDir.toURI().toURL()
};
}
catch (Exception ex)
{
getLogger().log(Level.SEVERE, "Enable " + getName(), ex);
getServer().getPluginManager().disablePlugin(this);
}
ClassLoader loader = new URLClassLoader(urls);
final ICommandHandler handler = new EssentialsCommandHandler(loader, "Command", "essentials.", ess);
for (File file : commandDir.listFiles())
{
String fileName = file.getName();
if (fileName.startsWith("Command") && fileName.endsWith(".class"))
{
String commandName = fileName.substring(7, fileName.length() - 7);
try
{
AnnotatedCommand anot = Class.forName(fileName, true, loader).getAnnotation(AnnotatedCommand.class);
if (anot == null)
{
throw new IllegalArgumentException("Command class is not annotated with AnnotatedCommand.class");
}
commandMap.register("Essentials", new Command(commandName, anot.description(), anot.usage(), Arrays.asList(anot.aliases()))
{
@Override
public boolean execute(CommandSender cs, String label, String[] args)
{
return handler.handleCommand(cs, this, label, args);
}
});
getLogger().info("Loaded command " + commandName);
}
catch (Exception ex)
{
getLogger().log(Level.SEVERE, "Could not register " + fileName, ex);
}
}
}
}
}
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