From 9133a6f511b4cfaca5e6a6671b58a6c3b10821ab Mon Sep 17 00:00:00 2001 From: md_5 Date: Tue, 26 Feb 2019 13:05:02 +1100 Subject: [PATCH] Simplify packet registration --- .../net/md_5/bungee/protocol/Protocol.java | 132 ++++++------------ .../bungee/protocol/ProtocolConstants.java | 3 +- 2 files changed, 46 insertions(+), 89 deletions(-) diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java index e6c3729c..56d8a0de 100644 --- a/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java +++ b/protocol/src/main/java/net/md_5/bungee/protocol/Protocol.java @@ -1,16 +1,13 @@ package net.md_5.bungee.protocol; import com.google.common.base.Preconditions; -import com.google.common.collect.Iterables; import gnu.trove.map.TIntObjectMap; import gnu.trove.map.TObjectIntMap; import gnu.trove.map.hash.TIntObjectHashMap; import gnu.trove.map.hash.TObjectIntHashMap; import java.lang.reflect.Constructor; -import java.util.Arrays; -import java.util.List; +import lombok.Data; import lombok.Getter; -import lombok.RequiredArgsConstructor; import net.md_5.bungee.protocol.packet.BossBar; import net.md_5.bungee.protocol.packet.Chat; import net.md_5.bungee.protocol.packet.ClientSettings; @@ -65,21 +62,18 @@ public enum Protocol KeepAlive.class, map( ProtocolConstants.MINECRAFT_1_8, 0x00 ), map( ProtocolConstants.MINECRAFT_1_9, 0x1F ), - map( ProtocolConstants.MINECRAFT_1_12, 0x1F ), map( ProtocolConstants.MINECRAFT_1_13, 0x21 ) ); TO_CLIENT.registerPacket( Login.class, map( ProtocolConstants.MINECRAFT_1_8, 0x01 ), map( ProtocolConstants.MINECRAFT_1_9, 0x23 ), - map( ProtocolConstants.MINECRAFT_1_12, 0x23 ), map( ProtocolConstants.MINECRAFT_1_13, 0x25 ) ); TO_CLIENT.registerPacket( Chat.class, map( ProtocolConstants.MINECRAFT_1_8, 0x02 ), map( ProtocolConstants.MINECRAFT_1_9, 0x0F ), - map( ProtocolConstants.MINECRAFT_1_12, 0x0F ), map( ProtocolConstants.MINECRAFT_1_13, 0x0E ) ); TO_CLIENT.registerPacket( @@ -92,15 +86,12 @@ public enum Protocol ); TO_CLIENT.registerPacket( BossBar.class, - map( ProtocolConstants.MINECRAFT_1_9, 0x0C ), - map( ProtocolConstants.MINECRAFT_1_12, 0x0C ), - map( ProtocolConstants.MINECRAFT_1_13, 0x0C ) + map( ProtocolConstants.MINECRAFT_1_9, 0x0C ) ); TO_CLIENT.registerPacket( PlayerListItem.class, // PlayerInfo map( ProtocolConstants.MINECRAFT_1_8, 0x38 ), map( ProtocolConstants.MINECRAFT_1_9, 0x2D ), - map( ProtocolConstants.MINECRAFT_1_12, 0x2D ), map( ProtocolConstants.MINECRAFT_1_12_1, 0x2E ), map( ProtocolConstants.MINECRAFT_1_13, 0x30 ) ); @@ -108,7 +99,6 @@ public enum Protocol TabCompleteResponse.class, map( ProtocolConstants.MINECRAFT_1_8, 0x3A ), map( ProtocolConstants.MINECRAFT_1_9, 0x0E ), - map( ProtocolConstants.MINECRAFT_1_12, 0x0E ), map( ProtocolConstants.MINECRAFT_1_13, 0x10 ) ); TO_CLIENT.registerPacket( @@ -147,14 +137,12 @@ public enum Protocol PluginMessage.class, map( ProtocolConstants.MINECRAFT_1_8, 0x3F ), map( ProtocolConstants.MINECRAFT_1_9, 0x18 ), - map( ProtocolConstants.MINECRAFT_1_12, 0x18 ), map( ProtocolConstants.MINECRAFT_1_13, 0x19 ) ); TO_CLIENT.registerPacket( Kick.class, map( ProtocolConstants.MINECRAFT_1_8, 0x40 ), map( ProtocolConstants.MINECRAFT_1_9, 0x1A ), - map( ProtocolConstants.MINECRAFT_1_12, 0x1A ), map( ProtocolConstants.MINECRAFT_1_13, 0x1B ) ); TO_CLIENT.registerPacket( @@ -177,7 +165,6 @@ public enum Protocol EntityStatus.class, map( ProtocolConstants.MINECRAFT_1_8, 0x1A ), map( ProtocolConstants.MINECRAFT_1_9, 0x1B ), - map( ProtocolConstants.MINECRAFT_1_12, 0x1B ), map( ProtocolConstants.MINECRAFT_1_13, 0x1C ) ); TO_CLIENT.registerPacket( @@ -198,8 +185,7 @@ public enum Protocol map( ProtocolConstants.MINECRAFT_1_8, 0x01 ), map( ProtocolConstants.MINECRAFT_1_9, 0x02 ), map( ProtocolConstants.MINECRAFT_1_12, 0x03 ), - map( ProtocolConstants.MINECRAFT_1_12_1, 0x02 ), - map( ProtocolConstants.MINECRAFT_1_13, 0x02 ) + map( ProtocolConstants.MINECRAFT_1_12_1, 0x02 ) ); TO_SERVER.registerPacket( TabCompleteRequest.class, @@ -214,8 +200,7 @@ public enum Protocol map( ProtocolConstants.MINECRAFT_1_8, 0x15 ), map( ProtocolConstants.MINECRAFT_1_9, 0x04 ), map( ProtocolConstants.MINECRAFT_1_12, 0x05 ), - map( ProtocolConstants.MINECRAFT_1_12_1, 0x04 ), - map( ProtocolConstants.MINECRAFT_1_13, 0x04 ) + map( ProtocolConstants.MINECRAFT_1_12_1, 0x04 ) ); TO_SERVER.registerPacket( PluginMessage.class, @@ -294,8 +279,8 @@ public enum Protocol /*========================================================================*/ public static final int MAX_PACKET_ID = 0xFF; /*========================================================================*/ - public final DirectionData TO_SERVER = new DirectionData( this, ProtocolConstants.Direction.TO_SERVER ); - public final DirectionData TO_CLIENT = new DirectionData( this, ProtocolConstants.Direction.TO_CLIENT ); + final DirectionData TO_SERVER = new DirectionData( this, ProtocolConstants.Direction.TO_SERVER ); + final DirectionData TO_CLIENT = new DirectionData( this, ProtocolConstants.Direction.TO_CLIENT ); public static void main(String[] args) { @@ -331,7 +316,7 @@ public enum Protocol } } - @RequiredArgsConstructor + @Data private static class ProtocolData { @@ -340,7 +325,7 @@ public enum Protocol private final Constructor[] packetConstructors = new Constructor[ MAX_PACKET_ID ]; } - @RequiredArgsConstructor + @Data private static class ProtocolMapping { @@ -354,66 +339,32 @@ public enum Protocol return new ProtocolMapping( protocol, id ); } - @RequiredArgsConstructor - public static class DirectionData + static final class DirectionData { - private final Protocol protocolPhase; private final TIntObjectMap protocols = new TIntObjectHashMap<>(); + // + private final Protocol protocolPhase; + @Getter + private final ProtocolConstants.Direction direction; + + public DirectionData(Protocol protocolPhase, ProtocolConstants.Direction direction) { + this.protocolPhase = protocolPhase; + this.direction = direction; + for ( int protocol : ProtocolConstants.SUPPORTED_VERSION_IDS ) { protocols.put( protocol, new ProtocolData( protocol ) ); } } - private final TIntObjectMap> linkedProtocols = new TIntObjectHashMap<>(); - { - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_8, Arrays.asList( - ProtocolConstants.MINECRAFT_1_9, - ProtocolConstants.MINECRAFT_1_12, - ProtocolConstants.MINECRAFT_1_13 - ) ); - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_9, Arrays.asList( - ProtocolConstants.MINECRAFT_1_9_1, - ProtocolConstants.MINECRAFT_1_9_2, - ProtocolConstants.MINECRAFT_1_9_4 - ) ); - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_9_4, Arrays.asList( - ProtocolConstants.MINECRAFT_1_10, - ProtocolConstants.MINECRAFT_1_11, - ProtocolConstants.MINECRAFT_1_11_1 - ) ); - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_12, Arrays.asList( - ProtocolConstants.MINECRAFT_1_12_1 - ) ); - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_12_1, Arrays.asList( - ProtocolConstants.MINECRAFT_1_12_2 - ) ); - linkedProtocols.put( ProtocolConstants.MINECRAFT_1_13, Arrays.asList( - ProtocolConstants.MINECRAFT_1_13_1, - ProtocolConstants.MINECRAFT_1_13_2 - ) ); - } - - @Getter - private final ProtocolConstants.Direction direction; - - private ProtocolData getProtocolData(int version) - { - ProtocolData protocol = protocols.get( version ); - if ( protocol == null && ( protocolPhase != Protocol.GAME ) ) - { - protocol = Iterables.getFirst( protocols.valueCollection(), null ); - } - return protocol; - } public final DefinedPacket createPacket(int id, int version) { - ProtocolData protocolData = getProtocolData( version ); + ProtocolData protocolData = protocols.get( version ); if ( protocolData == null ) { - throw new BadPacketException( "Unsupported protocol version" ); + throw new BadPacketException( "Unsupported protocol version " + version ); } if ( id > MAX_PACKET_ID ) { @@ -430,33 +381,38 @@ public enum Protocol } } - protected final void registerPacket(Class packetClass, ProtocolMapping... mappings) + private void registerPacket(Class packetClass, ProtocolMapping... mappings) { try { Constructor constructor = packetClass.getDeclaredConstructor(); - for ( ProtocolMapping mapping : mappings ) - { - ProtocolData data = protocols.get( mapping.protocolVersion ); - data.packetMap.put( packetClass, mapping.packetID ); - data.packetConstructors[mapping.packetID] = constructor; - List links = linkedProtocols.get( mapping.protocolVersion ); - if ( links != null ) + int mappingIndex = 0; + ProtocolMapping mapping = mappings[mappingIndex]; + for ( int protocol : ProtocolConstants.SUPPORTED_VERSION_IDS ) + { + if ( protocol < mapping.protocolVersion ) { - links: for ( int link : links ) + // This is a new packet, skip it till we reach the next protocol + continue; + } + + if ( mapping.protocolVersion < protocol && mappingIndex + 1 < mappings.length ) + { + // Mapping is non current, but the next one may be ok + ProtocolMapping nextMapping = mappings[mappingIndex + 1]; + if ( nextMapping.protocolVersion == protocol ) { - // Check for manual mappings - for ( ProtocolMapping m : mappings ) - { - if ( m == mapping ) continue; - if ( m.protocolVersion == link ) continue links; - List innerLinks = linkedProtocols.get( m.protocolVersion ); - if ( innerLinks != null && innerLinks.contains( link ) ) continue links; - } - registerPacket( packetClass, map( link, mapping.packetID ) ); + Preconditions.checkState( nextMapping.packetID != mapping.packetID, "Duplicate packet mapping (%s, %s)", mapping.protocolVersion, nextMapping.protocolVersion ); + + mapping = nextMapping; + mappingIndex++; } } + + ProtocolData data = protocols.get( protocol ); + data.packetMap.put( packetClass, mapping.packetID ); + data.packetConstructors[mapping.packetID] = constructor; } } catch ( NoSuchMethodException ex ) { @@ -467,7 +423,7 @@ public enum Protocol final int getId(Class packet, int version) { - ProtocolData protocolData = getProtocolData( version ); + ProtocolData protocolData = protocols.get( version ); if ( protocolData == null ) { throw new BadPacketException( "Unsupported protocol version" ); diff --git a/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java b/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java index 2cc86349..09c2bebf 100644 --- a/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java +++ b/protocol/src/main/java/net/md_5/bungee/protocol/ProtocolConstants.java @@ -28,7 +28,8 @@ public class ProtocolConstants "1.12.x", "1.13.x" ); - public static final List SUPPORTED_VERSION_IDS = Arrays.asList( ProtocolConstants.MINECRAFT_1_8, + public static final List SUPPORTED_VERSION_IDS = Arrays.asList( + ProtocolConstants.MINECRAFT_1_8, ProtocolConstants.MINECRAFT_1_9, ProtocolConstants.MINECRAFT_1_9_1, ProtocolConstants.MINECRAFT_1_9_2,