/
MineJMX.java
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/
MineJMX.java
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package com.dkhenry.minejmx;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.lang.Class;
import java.lang.management.ManagementFactory;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.UnknownHostException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.logging.Logger;
import javax.management.InstanceAlreadyExistsException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MBeanServerFactory;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.remote.JMXAuthenticator;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXPrincipal;
import javax.management.remote.JMXServiceURL;
import javax.security.auth.Subject;
import org.bukkit.Bukkit;
import org.bukkit.event.Event;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.configuration.file.FileConfiguration;
import java.sql.* ;
public class MineJMX extends JavaPlugin {
Logger log = Logger.getLogger("Minecraft") ;
/* The Listener Classes */
private final MineJMXBlockListener blockListener = new MineJMXBlockListener(this) ;
private final MineJMXPlayerListener playerListener = new MineJMXPlayerListener(this) ;
//private final MineJMXServerListener serverListener = new MineJMXServerListener(this) ;
private final MineJMXEntityListener entityListener = new MineJMXEntityListener(this) ;
/* The JMx Specific Variables */
private MBeanServer mbs ;
private JMXConnectorServer cs ;
private Registry reg ;
/* The MBeans and their containers */
public ServerData serverData ;
public ServerPerformanceData serverPerformanceData ;
public Map<String,PlayerData> playerData ;
public Map<String,BlockData> blockData ;
public Map<String,NpeData> npeData;
/* The Configure variables */
private String username = "admin" ;
private String passwd = "passwd" ;
private int port = 9999 ;
private String ip = "*" ;
private static String dir = "plugins" ;
private static String Persistance = dir + File.separator + "MineJMX.db" ;
/* Class to enable Password Based JMx Authentication */
private class JmxAuthenticatorImple implements JMXAuthenticator {
@Override
public Subject authenticate(Object credentials) {
String[] info = (String[]) credentials ;
if( info[0].equals(username) && info[1].equals(passwd)) {
Subject s = new Subject() ;
s.getPrincipals().add(new JMXPrincipal(info[0])) ;
return s ;
} else {
throw new SecurityException() ;
}
}
}
private JmxAuthenticatorImple auth = new JmxAuthenticatorImple() ;
private ServerTickPoller tickPoller;
/**
* @brief This Function handles Loading the Configuration
*/
private void loadConfig() {
/* Read in the Properties File */
FileConfiguration cfg = this.getConfig();
cfg.addDefault("username", "admin");
cfg.addDefault("password", "passwd123");
cfg.addDefault("port", 9999);
cfg.addDefault("host", "localhost");
cfg.options().copyDefaults(true);
this.saveConfig();
this.username = cfg.getString("username");
if(cfg.get("password").getClass().equals(Integer.class)) {
// All-numeric password needs to be converted to String.
int ipass = cfg.getInt("password");
this.passwd = Integer.toString(ipass);
}
else {
this.passwd = cfg.getString("password");
}
this.port = cfg.getInt("port");
this.ip = cfg.getString("host");
}
private void prepTables(Statement stat) throws SQLException {
stat.execute("CREATE TABLE IF NOT EXISTS metrics ( key , type , data , PRIMARY KEY(key,type) );") ;
}
private void loadState() {
try {
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:"+MineJMX.Persistance );
Statement stat = conn.createStatement();
prepTables(stat) ;
ResultSet rs = stat.executeQuery("SELECT key , type , data FROM metrics ;") ;
while (rs.next()) {
log.info("Restoring : " + rs.getString("key") + ":" + rs.getString("type") + ":" + rs.getString("data")) ;
if(rs.getString("type").equals("server")) {
this.serverData = ServerData.instanceFromResultSet(rs, this) ;
} else if(rs.getString("type").equals("player")) {
PlayerData pd = PlayerData.instanceFromResultSet(rs, this) ;
this.addPlayer(rs.getString("key"), pd) ;
} else if(rs.getString("type").equals("block")) {
BlockData bd = BlockData.instanceFromResultSet(rs, this) ;
this.addBlock(rs.getString("key"), bd) ;
} else if(rs.getString("type").equals("npe")) {
NpeData nd = NpeData.instanceFromResultSet(rs, this);
this.addNpe(rs.getString("key"), nd);
} else if(rs.getString("type").equals("performance")) {
this.serverPerformanceData = ServerPerformanceData.instanceFromResultSet(rs, this) ;
}
}
rs.close();
conn.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
private void saveState() {
try {
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:"+MineJMX.Persistance );
Statement stat = conn.createStatement();
prepTables(stat) ;
ResultSet rs = stat.executeQuery("SELECT key , type , data FROM metrics ;") ;
for(Entry<String, BlockData> entry : this.blockData.entrySet()) {
BlockData d = entry.getValue() ;
log.info("Saving: "+entry.getKey()+" : "+d.getMetricData()) ;
stat.executeUpdate("INSERT OR REPLACE INTO metrics VALUES ('"+entry.getKey()+"', 'block' , '"+d.getMetricData()+"') ;") ;
}
for(Entry<String, PlayerData> entry : this.playerData.entrySet()) {
PlayerData d = entry.getValue() ;
log.info("Saving: "+entry.getKey()+" : "+d.getMetricData()) ;
stat.executeUpdate("INSERT OR REPLACE INTO metrics VALUES ('"+entry.getKey()+"', 'player' , '"+d.getMetricData()+"') ;") ;
}
for(Entry<String, NpeData> entry : this.npeData.entrySet()) {
NpeData d = entry.getValue();
log.info("Saving: " + entry.getKey() + " : " + d.getMetricData());
stat.executeUpdate("INSERT OR REPLACE INTO metrics VALUES ('" + entry.getKey() + "', 'npe', '" + d.getMetricData() + "');");
}
log.info("Saving: this : server : "+this.serverData.getMetricData()) ;
stat.executeUpdate("INSERT OR REPLACE INTO metrics VALUES ('this' , 'server' , '"+this.serverData.getMetricData()+"') ;") ;
stat.executeUpdate("INSERT OR REPLACE INTO metrics VALUES ('this' , 'performance' , '"+this.serverPerformanceData.getMetricData()+"') ;") ;
rs.close();
conn.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
/**
* @brief Since we don't want to make everyone modify their start script
* To Enable JMX we will do it programaticly
*/
private void enableJMX() {
/* Enable the JMX Portion of the System */
//acquiring platform MBeanServer
mbs = ManagementFactory.getPlatformMBeanServer();
if( null == mbs ) {
log.info("Platform MBean Server isnull creating a new mbs") ;
mbs = MBeanServerFactory.createMBeanServer();
}
//creating JMXConnectorServer instance
JMXServiceURL url;
try {
String addr = "127.0.0.1" ;
if ( this.ip.equals("")) {
addr = Bukkit.getServer().getIp() ;
log.info("MineJMX: Using Minecraft Server IP of: " + addr) ;
} else if (this.ip.equals("*")) {
addr = InetAddress.getLocalHost().getHostAddress() ;
log.info("MineJMX: Using localhostname IP of: " + addr) ;
} else {
addr = this.ip ;
log.info("MineJMX: Using Configured IP of: " + addr) ;
}
url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://"
+ addr + ":" + this.port + "/jmxrmi");
Map<String, Object> env = new HashMap<String,Object>() ;
env.put(JMXConnectorServer.AUTHENTICATOR, auth) ;
log.info("Registering JMX Server On: " + url.toString()) ;
cs = JMXConnectorServerFactory.newJMXConnectorServer(url, env , mbs);
reg = LocateRegistry.createRegistry(this.port);
//starting JMXConnectorServer
cs.start();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* @brief This will add a new player and register him with the MBeanServer
* @param name The name of the player
* @param player The PlayerData Object or NULL to have one automatically created
*/
public void addPlayer(String name , PlayerData player) {
if( player == null ) {
player = new PlayerData(this) ;
}
// Register the MBean
ObjectName oName ;
try {
oName = new ObjectName("org.dkhenry.minejmx:type=PlayerData,name="+name);
if( mbs.isRegistered(oName) ) {
mbs.unregisterMBean(oName) ;
}
mbs.registerMBean(player, oName) ;
} catch (InstanceAlreadyExistsException e) {
e.printStackTrace();
} catch (MBeanRegistrationException e) {
e.printStackTrace();
} catch (NotCompliantMBeanException e) {
e.printStackTrace();
} catch (MalformedObjectNameException e) {
e.printStackTrace();
} catch (NullPointerException e) {
e.printStackTrace();
} catch (InstanceNotFoundException e) {
e.printStackTrace();
}
this.playerData.put(name, player) ;
}
public void addBlock(String mat, BlockData blockData) {
String name = mat ;
if( blockData == null ) {
blockData = new BlockData(this) ;
}
// Register the MBean
ObjectName oName ;
try {
oName = new ObjectName("org.dkhenry.minejmx:type=BlockData,name="+name);
if( mbs.isRegistered(oName) ) {
mbs.unregisterMBean(oName) ;
}
mbs.registerMBean(blockData, oName) ;
} catch (InstanceAlreadyExistsException e) {
//e.printStackTrace();
} catch (MBeanRegistrationException e) {
//e.printStackTrace();
} catch (NotCompliantMBeanException e) {
//e.printStackTrace();
} catch (MalformedObjectNameException e) {
//e.printStackTrace();
} catch (NullPointerException e) {
//e.printStackTrace();
} catch (InstanceNotFoundException e) {
//e.printStackTrace();
}
this.blockData.put(name, blockData) ;
}
public void addNpe(String className, NpeData data) {
String name = className;
if(data == null) {
data = new NpeData(this);
}
// Register the MBean
ObjectName oName;
try {
oName = new ObjectName("org.dkhenry.minejmx:type=NpeData,name=" + name);
if( mbs.isRegistered(oName) ) {
mbs.unregisterMBean(oName) ;
}
mbs.registerMBean(data, oName) ;
} catch (InstanceAlreadyExistsException e) {
//e.printStackTrace();
} catch (MBeanRegistrationException e) {
//e.printStackTrace();
} catch (NotCompliantMBeanException e) {
//e.printStackTrace();
} catch (MalformedObjectNameException e) {
//e.printStackTrace();
} catch (NullPointerException e) {
//e.printStackTrace();
} catch (InstanceNotFoundException e) {
//e.printStackTrace();
}
this.npeData.put(name, data) ;
}
public PlayerData getPlayerData(String name, String logIfNotFound) {
PlayerData playerData;
if(this.playerData.containsKey(name)) {
return this.playerData.get(name);
}
if(logIfNotFound.length() > 0) {
this.log.info(logIfNotFound);
}
playerData = new PlayerData(this);
this.addPlayer(name, playerData);
return playerData;
}
public BlockData getBlockData(String mat, String logIfNotFound) {
BlockData blockData;
if(this.blockData.containsKey(mat)) {
return this.blockData.get(mat);
}
if(logIfNotFound.length() > 0) {
this.log.info(logIfNotFound);
}
blockData = new BlockData(this);
this.addBlock(mat, blockData);
return blockData;
}
public NpeData getNpeData(String type, String logIfNotFound) {
NpeData npeData;
if(this.npeData.containsKey(type)) {
return this.npeData.get(type);
}
if(logIfNotFound.length() > 0) {
this.log.info(logIfNotFound);
}
npeData = new NpeData(this);
this.addNpe(type, npeData);
return npeData;
}
public NpeData getNpeDataByClass(Class that) {
String name = MineJMX.getSimpleClassName(that);
if(name.startsWith("Craft")) {
name = name.substring(5);
}
return this.getNpeData(name, "MineJMX is seeing non-player Entity type \"" + name + "\" for the first time.");
}
@Override
public void onDisable() {
saveState() ;
//stopping JMXConnectorServer
try {
cs.stop();
java.rmi.server.UnicastRemoteObject.unexportObject(reg,true);
} catch (IOException e) {
e.printStackTrace();
}
log.info("The MineJMX Plugin has been disabled.") ;
}
@Override
public void onEnable() {
/* Load our Configuration File */
loadConfig() ;
/* Do the Magic to Enable JMX */
enableJMX() ;
this.serverData = new ServerData(this);
this.serverPerformanceData = new ServerPerformanceData(this) ;
this.playerData = new HashMap<String,PlayerData>() ;
this.blockData = new HashMap<String,BlockData>() ;
this.npeData = new HashMap<String,NpeData>();
loadState() ;
ObjectName name;
try {
String serverName = Bukkit.getServer().getName();
name = new ObjectName("org.dkhenry.minejmx:type=ServerData,name="+serverName);
if (mbs.isRegistered(name) ) {
mbs.unregisterMBean(name) ;
}
mbs.registerMBean(serverData, name) ;
name = new ObjectName("org.dkhenry.minejmx:type=ServerPerformanceData,name="+serverName) ;
if (mbs.isRegistered(name) ) {
mbs.unregisterMBean(name) ;
}
mbs.registerMBean(serverPerformanceData, name) ;
} catch (MalformedObjectNameException e1) {
//e1.printStackTrace();
} catch (NullPointerException e1) {
//e1.printStackTrace();
} catch (InstanceAlreadyExistsException e) {
//e.printStackTrace();
} catch (MBeanRegistrationException e) {
//e.printStackTrace();
} catch (NotCompliantMBeanException e) {
//e.printStackTrace();
} catch (InstanceNotFoundException e) {
//e.printStackTrace();
}
/* Register the Listeners */
PluginManager pm = this.getServer().getPluginManager() ;
// The Block Events
pm.registerEvent(Event.Type.BLOCK_PLACE, blockListener, Event.Priority.Normal ,this) ;
pm.registerEvent(Event.Type.BLOCK_BREAK, blockListener, Event.Priority.Normal ,this) ;
pm.registerEvent(Event.Type.BLOCK_SPREAD, blockListener, Event.Priority.Normal, this);
pm.registerEvent(Event.Type.LEAVES_DECAY, blockListener, Event.Priority.Normal, this);
// Player Events
pm.registerEvent(Event.Type.PLAYER_JOIN, playerListener, Event.Priority.Normal ,this) ;
pm.registerEvent(Event.Type.PLAYER_QUIT, playerListener, Event.Priority.Normal ,this) ;
pm.registerEvent(Event.Type.PLAYER_MOVE, playerListener, Event.Priority.Normal, this);
// Entity Events
pm.registerEvent(Event.Type.ENTITY_DEATH, entityListener, Event.Priority.Normal ,this) ;
// Server Events
this.tickPoller = new ServerTickPoller(this) ;
this.tickPoller.setInterval(40) ;
this.tickPoller.registerWithScheduler(getServer().getScheduler()) ;
log.info("The MineJMX Plugin has been enabled.") ;
}
public static String getSimpleClassName(Class cls) {
String name = cls.getName().replace('$', '.');
if(name.lastIndexOf('.') > 0) {
name = name.substring(name.lastIndexOf('.') + 1);
}
return name ;
}
}