Java tutorial
/* * The FML Forge Mod Loader suite. Copyright (C) 2012 cpw * * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free * Software Foundation; either version 2.1 of the License, or any later version. * * This library 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package cpw.mods.fml.server; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.util.Collections; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import org.apache.commons.io.IOUtils; import com.google.common.collect.ImmutableList; import com.google.common.collect.MapDifference; import net.minecraft.entity.Entity; import net.minecraft.network.INetworkManager; import net.minecraft.network.packet.NetHandler; import net.minecraft.network.packet.Packet; import net.minecraft.network.packet.Packet131MapData; import net.minecraft.server.MinecraftServer; import net.minecraft.util.StringTranslate; import net.minecraft.world.World; import cpw.mods.fml.common.FMLCommonHandler; import cpw.mods.fml.common.FMLLog; import cpw.mods.fml.common.IFMLSidedHandler; import cpw.mods.fml.common.Loader; import cpw.mods.fml.common.ModContainer; import cpw.mods.fml.common.ObfuscationReflectionHelper; import cpw.mods.fml.common.network.EntitySpawnAdjustmentPacket; import cpw.mods.fml.common.network.EntitySpawnPacket; import cpw.mods.fml.common.network.ModMissingPacket; import cpw.mods.fml.common.registry.EntityRegistry.EntityRegistration; import cpw.mods.fml.common.registry.GameData; import cpw.mods.fml.common.registry.GameRegistry; import cpw.mods.fml.common.registry.ItemData; import cpw.mods.fml.common.registry.LanguageRegistry; import cpw.mods.fml.relauncher.Side; /** * Handles primary communication from hooked code into the system * * The FML entry point is {@link #beginServerLoading(MinecraftServer)} called from * {@link net.minecraft.server.dedicated.DedicatedServer} * * Obfuscated code should focus on this class and other members of the "server" * (or "client") code * * The actual mod loading is handled at arms length by {@link Loader} * * It is expected that a similar class will exist for each target environment: * Bukkit and Client side. * * It should not be directly modified. * * @author cpw * */ public class FMLServerHandler implements IFMLSidedHandler { /** * The singleton */ private static final FMLServerHandler INSTANCE = new FMLServerHandler(); /** * A reference to the server itself */ private MinecraftServer server; private FMLServerHandler() { FMLCommonHandler.instance().beginLoading(this); } /** * Called to start the whole game off from * {@link MinecraftServer#startServer} * * @param minecraftServer */ public void beginServerLoading(MinecraftServer minecraftServer) { server = minecraftServer; Loader.instance().loadMods(); } /** * Called a bit later on during server initialization to finish loading mods */ public void finishServerLoading() { Loader.instance().initializeMods(); LanguageRegistry.reloadLanguageTable(); GameData.initializeServerGate(1); } @Override public void haltGame(String message, Throwable exception) { throw new RuntimeException(message, exception); } /** * Get the server instance */ public MinecraftServer getServer() { return server; } /** * @return the instance */ public static FMLServerHandler instance() { return INSTANCE; } /* (non-Javadoc) * @see cpw.mods.fml.common.IFMLSidedHandler#getAdditionalBrandingInformation() */ @Override public List<String> getAdditionalBrandingInformation() { return ImmutableList.<String>of(); } /* (non-Javadoc) * @see cpw.mods.fml.common.IFMLSidedHandler#getSide() */ @Override public Side getSide() { return Side.SERVER; } @Override public void showGuiScreen(Object clientGuiElement) { } @Override public Entity spawnEntityIntoClientWorld(EntityRegistration er, EntitySpawnPacket packet) { // NOOP return null; } @Override public void adjustEntityLocationOnClient(EntitySpawnAdjustmentPacket entitySpawnAdjustmentPacket) { // NOOP } @Override public void sendPacket(Packet packet) { throw new RuntimeException("You cannot send a bare packet without a target on the server!"); } @Override public void displayMissingMods(ModMissingPacket modMissingPacket) { // NOOP on server } @Override public void handleTinyPacket(NetHandler handler, Packet131MapData mapData) { // NOOP on server } @Override public void setClientCompatibilityLevel(byte compatibilityLevel) { // NOOP on server } @Override public byte getClientCompatibilityLevel() { return 0; } @Override public boolean shouldServerShouldBeKilledQuietly() { return false; } @Override public void disconnectIDMismatch(MapDifference<Integer, ItemData> s, NetHandler handler, INetworkManager mgr) { } @Override public void addModAsResource(ModContainer container) { File source = container.getSource(); try { if (source.isDirectory()) { searchDirForENUSLanguage(source, ""); } else { searchZipForENUSLanguage(source); } } catch (IOException ioe) { } } private static final Pattern assetENUSLang = Pattern.compile("assets/(.*)/lang/en_US.lang"); private void searchZipForENUSLanguage(File source) throws IOException { ZipFile zf = new ZipFile(source); for (ZipEntry ze : Collections.list(zf.entries())) { Matcher matcher = assetENUSLang.matcher(ze.getName()); if (matcher.matches()) { FMLLog.fine("Injecting found translation data in zip file %s at %s into language system", source.getName(), ze.getName()); StringTranslate.inject(zf.getInputStream(ze)); } } zf.close(); } private void searchDirForENUSLanguage(File source, String path) throws IOException { for (File file : source.listFiles()) { String currPath = path + file.getName(); if (file.isDirectory()) { searchDirForENUSLanguage(file, currPath + '/'); } Matcher matcher = assetENUSLang.matcher(currPath); if (matcher.matches()) { FMLLog.fine("Injecting found translation data at %s into language system", currPath); StringTranslate.inject(new FileInputStream(file)); } } } @Override public void updateResourcePackList() { } @Override public String getCurrentLanguage() { return "en_US"; } @Override public void serverStopped() { // NOOP } }