Java tutorial
/* * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ package lineage2.gameserver.network.telnet.commands; import java.io.File; import java.io.IOException; import java.lang.management.ManagementFactory; import java.text.SimpleDateFormat; import java.util.LinkedHashSet; import java.util.Set; import javax.management.MBeanServer; import lineage2.commons.dao.JdbcEntityStats; import lineage2.commons.lang.StatsUtils; import lineage2.commons.net.nio.impl.SelectorThread; import lineage2.commons.threading.RunnableStatsManager; import lineage2.gameserver.Config; import lineage2.gameserver.ThreadPoolManager; import lineage2.gameserver.dao.ItemsDAO; import lineage2.gameserver.dao.MailDAO; import lineage2.gameserver.database.DatabaseFactory; import lineage2.gameserver.geodata.PathFindBuffers; import lineage2.gameserver.network.telnet.TelnetCommand; import lineage2.gameserver.network.telnet.TelnetCommandHolder; import lineage2.gameserver.taskmanager.AiTaskManager; import lineage2.gameserver.taskmanager.EffectTaskManager; import lineage2.gameserver.utils.GameStats; import net.sf.ehcache.Cache; import net.sf.ehcache.statistics.LiveCacheStatistics; import org.apache.commons.io.FileUtils; import com.sun.management.HotSpotDiagnosticMXBean; /** * @author Mobius * @version $Revision: 1.0 $ */ public class TelnetPerfomance implements TelnetCommandHolder { /** * Field _commands. */ private final Set<TelnetCommand> _commands = new LinkedHashSet<>(); /** * Constructor for TelnetPerfomance. */ public TelnetPerfomance() { _commands.add(new TelnetCommand("pool", "p") { @Override public String getUsage() { return "pool [dump]"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); if ((args.length == 0) || args[0].isEmpty()) { sb.append(ThreadPoolManager.getInstance().getStats()); } else if (args[0].equals("dump") || args[0].equals("d")) { try { new File("stats").mkdir(); FileUtils .writeStringToFile( new File("stats/RunnableStats-" + new SimpleDateFormat("MMddHHmmss") .format(System.currentTimeMillis()) + ".txt"), RunnableStatsManager.getInstance().getStats().toString()); sb.append("Runnable stats saved.\n"); } catch (IOException e) { sb.append("Exception: " + e.getMessage() + "!\n"); } } else { return null; } return sb.toString(); } }); _commands.add(new TelnetCommand("mem", "m") { @Override public String getUsage() { return "mem"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); sb.append(StatsUtils.getMemUsage()); return sb.toString(); } }); _commands.add(new TelnetCommand("heap") { @Override public String getUsage() { return "heap [dump] <live>"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); if ((args.length == 0) || args[0].isEmpty()) { return null; } else if (args[0].equals("dump") || args[0].equals("d")) { try { boolean live = (args.length == 2) && !args[1].isEmpty() && (args[1].equals("live") || args[1].equals("l")); new File("dumps").mkdir(); String filename = "dumps/HeapDump" + (live ? "Live" : "") + "-" + new SimpleDateFormat("MMddHHmmss").format(System.currentTimeMillis()) + ".hprof"; MBeanServer server = ManagementFactory.getPlatformMBeanServer(); HotSpotDiagnosticMXBean bean = ManagementFactory.newPlatformMXBeanProxy(server, "com.sun.management:type=HotSpotDiagnostic", HotSpotDiagnosticMXBean.class); bean.dumpHeap(filename, live); sb.append("Heap dumped.\n"); } catch (IOException e) { sb.append("Exception: " + e.getMessage() + "!\n"); } } else { return null; } return sb.toString(); } }); _commands.add(new TelnetCommand("threads", "t") { @Override public String getUsage() { return "threads [dump]"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); if ((args.length == 0) || args[0].isEmpty()) { sb.append(StatsUtils.getThreadStats()); } else if (args[0].equals("dump") || args[0].equals("d")) { try { new File("stats").mkdir(); FileUtils .writeStringToFile( new File("stats/ThreadsDump-" + new SimpleDateFormat("MMddHHmmss") .format(System.currentTimeMillis()) + ".txt"), StatsUtils.getThreadStats(true, true, true).toString()); sb.append("Threads stats saved.\n"); } catch (IOException e) { sb.append("Exception: " + e.getMessage() + "!\n"); } } else { return null; } return sb.toString(); } }); _commands.add(new TelnetCommand("gc") { @Override public String getUsage() { return "gc"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); sb.append(StatsUtils.getGCStats()); return sb.toString(); } }); _commands.add(new TelnetCommand("net", "ns") { @Override public String getUsage() { return "net"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); sb.append(SelectorThread.getStats()); return sb.toString(); } }); _commands.add(new TelnetCommand("pathfind", "pfs") { @Override public String getUsage() { return "pathfind"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); sb.append(PathFindBuffers.getStats()); return sb.toString(); } }); _commands.add(new TelnetCommand("dbstats", "ds") { @Override public String getUsage() { return "dbstats"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); sb.append("Basic database usage\n"); sb.append("=================================================\n"); sb.append("Connections").append('\n'); sb.append(" Busy: ........................ ") .append(DatabaseFactory.getInstance().getBusyConnectionCount()).append('\n'); sb.append(" Idle: ........................ ") .append(DatabaseFactory.getInstance().getIdleConnectionCount()).append('\n'); sb.append("Players").append('\n'); sb.append(" Update: ...................... ").append(GameStats.getUpdatePlayerBase()) .append('\n'); double cacheHitCount, cacheMissCount, cacheHitRatio; Cache cache; LiveCacheStatistics cacheStats; JdbcEntityStats entityStats; cache = ItemsDAO.getInstance().getCache(); cacheStats = cache.getLiveCacheStatistics(); entityStats = ItemsDAO.getInstance().getStats(); cacheHitCount = cacheStats.getCacheHitCount(); cacheMissCount = cacheStats.getCacheMissCount(); cacheHitRatio = cacheHitCount / (cacheHitCount + cacheMissCount); sb.append("Items").append('\n'); sb.append(" getLoadCount: ................ ").append(entityStats.getLoadCount()).append('\n'); sb.append(" getInsertCount: .............. ").append(entityStats.getInsertCount()).append('\n'); sb.append(" getUpdateCount: .............. ").append(entityStats.getUpdateCount()).append('\n'); sb.append(" getDeleteCount: .............. ").append(entityStats.getDeleteCount()).append('\n'); sb.append("Cache").append('\n'); sb.append(" getPutCount: ................. ").append(cacheStats.getPutCount()).append('\n'); sb.append(" getUpdateCount: .............. ").append(cacheStats.getUpdateCount()).append('\n'); sb.append(" getRemovedCount: ............. ").append(cacheStats.getRemovedCount()).append('\n'); sb.append(" getEvictedCount: ............. ").append(cacheStats.getEvictedCount()).append('\n'); sb.append(" getExpiredCount: ............. ").append(cacheStats.getExpiredCount()).append('\n'); sb.append(" getSize: ..................... ").append(cacheStats.getSize()).append('\n'); sb.append(" getLocalHeapSize: ............. ").append(cacheStats.getLocalHeapSize()) .append('\n'); sb.append(" getLocalDiskSize: ............... ").append(cacheStats.getLocalDiskSize()) .append('\n'); sb.append(" cacheHitRatio: ............... ").append(String.format("%2.2f", cacheHitRatio)) .append('\n'); sb.append("=================================================\n"); cache = MailDAO.getInstance().getCache(); cacheStats = cache.getLiveCacheStatistics(); entityStats = MailDAO.getInstance().getStats(); cacheHitCount = cacheStats.getCacheHitCount(); cacheMissCount = cacheStats.getCacheMissCount(); cacheHitRatio = cacheHitCount / (cacheHitCount + cacheMissCount); sb.append("Mail").append('\n'); sb.append(" getLoadCount: ................ ").append(entityStats.getLoadCount()).append('\n'); sb.append(" getInsertCount: .............. ").append(entityStats.getInsertCount()).append('\n'); sb.append(" getUpdateCount: .............. ").append(entityStats.getUpdateCount()).append('\n'); sb.append(" getDeleteCount: .............. ").append(entityStats.getDeleteCount()).append('\n'); sb.append("Cache").append('\n'); sb.append(" getPutCount: ................. ").append(cacheStats.getPutCount()).append('\n'); sb.append(" getUpdateCount: .............. ").append(cacheStats.getUpdateCount()).append('\n'); sb.append(" getRemovedCount: ............. ").append(cacheStats.getRemovedCount()).append('\n'); sb.append(" getEvictedCount: ............. ").append(cacheStats.getEvictedCount()).append('\n'); sb.append(" getExpiredCount: ............. ").append(cacheStats.getExpiredCount()).append('\n'); sb.append(" getSize: ..................... ").append(cacheStats.getSize()).append('\n'); sb.append(" getLocalHeapSize: ............. ").append(cacheStats.getLocalHeapSize()) .append('\n'); sb.append(" getLocalDiskSize: ............... ").append(cacheStats.getLocalDiskSize()) .append('\n'); sb.append(" cacheHitRatio: ............... ").append(String.format("%2.2f", cacheHitRatio)) .append('\n'); sb.append("=================================================\n"); return sb.toString(); } }); _commands.add(new TelnetCommand("aistats", "as") { @Override public String getUsage() { return "aistats"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < Config.AI_TASK_MANAGER_COUNT; i++) { sb.append("AiTaskManager #").append(i + 1).append('\n'); sb.append("=================================================\n"); sb.append(AiTaskManager.getInstance().getStats(i)); sb.append("=================================================\n"); } return sb.toString(); } }); _commands.add(new TelnetCommand("effectstats", "es") { @Override public String getUsage() { return "effectstats"; } @Override public String handle(String[] args) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < Config.EFFECT_TASK_MANAGER_COUNT; i++) { sb.append("EffectTaskManager #").append(i + 1).append('\n'); sb.append("=================================================\n"); sb.append(EffectTaskManager.getInstance().getStats(i)); sb.append("=================================================\n"); } return sb.toString(); } }); } /** * Method getCommands. * @return Set<TelnetCommand> * @see lineage2.gameserver.network.telnet.TelnetCommandHolder#getCommands() */ @Override public Set<TelnetCommand> getCommands() { return _commands; } }