TF-ProjectKorra/src/com/projectkorra/ProjectKorra/Utilities/ReflectionHandler.java
2014-07-20 22:56:35 -04:00

548 lines
No EOL
20 KiB
Java

package com.projectkorra.ProjectKorra.Utilities;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.bukkit.Bukkit;
/**
* ReflectionHandler v1.0
*
* This class makes dealing with reflection much easier, especially when working with Bukkit
*
* You are welcome to use it, modify it and redistribute it under the following conditions:
* 1. Don't claim this class as your own
* 2. Don't remove this text
*
* (Would be nice if you provide credit to me)
*
* @author DarkBlade12
*/
public final class ReflectionHandler {
private ReflectionHandler() {}
public static Class<?> getClass(String name, PackageType type) throws Exception {
return Class.forName(type + "." + name);
}
public static Class<?> getClass(String name, SubPackageType type) throws Exception {
return Class.forName(type + "." + name);
}
public static Constructor<?> getConstructor(Class<?> clazz, Class<?>... parameterTypes) {
Class<?>[] p = DataType.convertToPrimitive(parameterTypes);
for (Constructor<?> c : clazz.getConstructors())
if (DataType.equalsArray(DataType.convertToPrimitive(c.getParameterTypes()), p))
return c;
return null;
}
public static Constructor<?> getConstructor(String className, PackageType type, Class<?>... parameterTypes) throws Exception {
return getConstructor(getClass(className, type), parameterTypes);
}
public static Constructor<?> getConstructor(String className, SubPackageType type, Class<?>... parameterTypes) throws Exception {
return getConstructor(getClass(className, type), parameterTypes);
}
public static Object newInstance(Class<?> clazz, Object... args) throws Exception {
return getConstructor(clazz, DataType.convertToPrimitive(args)).newInstance(args);
}
public static Object newInstance(String className, PackageType type, Object... args) throws Exception {
return newInstance(getClass(className, type), args);
}
public static Object newInstance(String className, SubPackageType type, Object... args) throws Exception {
return newInstance(getClass(className, type), args);
}
public static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes) {
Class<?>[] p = DataType.convertToPrimitive(parameterTypes);
for (Method m : clazz.getMethods())
if (m.getName().equals(name) && DataType.equalsArray(DataType.convertToPrimitive(m.getParameterTypes()), p))
return m;
return null;
}
public static Method getMethod(String className, PackageType type, String name, Class<?>... parameterTypes) throws Exception {
return getMethod(getClass(className, type), name, parameterTypes);
}
public static Method getMethod(String className, SubPackageType type, String name, Class<?>... parameterTypes) throws Exception {
return getMethod(getClass(className, type), name, parameterTypes);
}
public static Object invokeMethod(String name, Object instance, Object... args) throws Exception {
return getMethod(instance.getClass(), name, DataType.convertToPrimitive(args)).invoke(instance, args);
}
public static Object invokeMethod(Class<?> clazz, String name, Object instance, Object... args) throws Exception {
return getMethod(clazz, name, DataType.convertToPrimitive(args)).invoke(instance, args);
}
public static Object invokeMethod(String className, PackageType type, String name, Object instance, Object... args) throws Exception {
return invokeMethod(getClass(className, type), name, instance, args);
}
public static Object invokeMethod(String className, SubPackageType type, String name, Object instance, Object... args) throws Exception {
return invokeMethod(getClass(className, type), name, instance, args);
}
public static Field getField(Class<?> clazz, String name) throws Exception {
Field f = clazz.getField(name);
f.setAccessible(true);
return f;
}
public static Field getField(String className, PackageType type, String name) throws Exception {
return getField(getClass(className, type), name);
}
public static Field getField(String className, SubPackageType type, String name) throws Exception {
return getField(getClass(className, type), name);
}
public static Field getDeclaredField(Class<?> clazz, String name) throws Exception {
Field f = clazz.getDeclaredField(name);
f.setAccessible(true);
return f;
}
public static Field getDeclaredField(String className, PackageType type, String name) throws Exception {
return getDeclaredField(getClass(className, type), name);
}
public static Field getDeclaredField(String className, SubPackageType type, String name) throws Exception {
return getDeclaredField(getClass(className, type), name);
}
public static Object getValue(Object instance, String fieldName) throws Exception {
return getField(instance.getClass(), fieldName).get(instance);
}
public static Object getValue(Class<?> clazz, Object instance, String fieldName) throws Exception {
return getField(clazz, fieldName).get(instance);
}
public static Object getValue(String className, PackageType type, Object instance, String fieldName) throws Exception {
return getValue(getClass(className, type), instance, fieldName);
}
public static Object getValue(String className, SubPackageType type, Object instance, String fieldName) throws Exception {
return getValue(getClass(className, type), instance, fieldName);
}
public static Object getDeclaredValue(Object instance, String fieldName) throws Exception {
return getDeclaredField(instance.getClass(), fieldName).get(instance);
}
public static Object getDeclaredValue(Class<?> clazz, Object instance, String fieldName) throws Exception {
return getDeclaredField(clazz, fieldName).get(instance);
}
public static Object getDeclaredValue(String className, PackageType type, Object instance, String fieldName) throws Exception {
return getDeclaredValue(getClass(className, type), instance, fieldName);
}
public static Object getDeclaredValue(String className, SubPackageType type, Object instance, String fieldName) throws Exception {
return getDeclaredValue(getClass(className, type), instance, fieldName);
}
public static void setValue(Object instance, String fieldName, Object fieldValue) throws Exception {
Field f = getField(instance.getClass(), fieldName);
f.set(instance, fieldValue);
}
public static void setValue(Object instance, FieldPair pair) throws Exception {
setValue(instance, pair.getName(), pair.getValue());
}
public static void setValue(Class<?> clazz, Object instance, String fieldName, Object fieldValue) throws Exception {
Field f = getField(clazz, fieldName);
f.set(instance, fieldValue);
}
public static void setValue(Class<?> clazz, Object instance, FieldPair pair) throws Exception {
setValue(clazz, instance, pair.getName(), pair.getValue());
}
public static void setValue(String className, PackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
setValue(getClass(className, type), instance, fieldName, fieldValue);
}
public static void setValue(String className, PackageType type, Object instance, FieldPair pair) throws Exception {
setValue(className, type, instance, pair.getName(), pair.getValue());
}
public static void setValue(String className, SubPackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
setValue(getClass(className, type), instance, fieldName, fieldValue);
}
public static void setValue(String className, SubPackageType type, Object instance, FieldPair pair) throws Exception {
setValue(className, type, instance, pair.getName(), pair.getValue());
}
public static void setValues(Object instance, FieldPair... pairs) throws Exception {
for (FieldPair pair : pairs)
setValue(instance, pair);
}
public static void setValues(Class<?> clazz, Object instance, FieldPair... pairs) throws Exception {
for (FieldPair pair : pairs)
setValue(clazz, instance, pair);
}
public static void setValues(String className, PackageType type, Object instance, FieldPair... pairs) throws Exception {
setValues(getClass(className, type), instance, pairs);
}
public static void setValues(String className, SubPackageType type, Object instance, FieldPair... pairs) throws Exception {
setValues(getClass(className, type), instance, pairs);
}
public static void setDeclaredValue(Object instance, String fieldName, Object fieldValue) throws Exception {
Field f = getDeclaredField(instance.getClass(), fieldName);
f.set(instance, fieldValue);
}
public static void setDeclaredValue(Object instance, FieldPair pair) throws Exception {
setDeclaredValue(instance, pair.getName(), pair.getValue());
}
public static void setDeclaredValue(Class<?> clazz, Object instance, String fieldName, Object fieldValue) throws Exception {
Field f = getDeclaredField(clazz, fieldName);
f.set(instance, fieldValue);
}
public static void setDeclaredValue(Class<?> clazz, Object instance, FieldPair pair) throws Exception {
setDeclaredValue(clazz, instance, pair.getName(), pair.getValue());
}
public static void setDeclaredValue(String className, PackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
setDeclaredValue(getClass(className, type), instance, fieldName, fieldValue);
}
public static void setDeclaredValue(String className, PackageType type, Object instance, FieldPair pair) throws Exception {
setDeclaredValue(className, type, instance, pair.getName(), pair.getValue());
}
public static void setDeclaredValue(String className, SubPackageType type, Object instance, String fieldName, Object fieldValue) throws Exception {
setDeclaredValue(getClass(className, type), instance, fieldName, fieldValue);
}
public static void setDeclaredValue(String className, SubPackageType type, Object instance, FieldPair pair) throws Exception {
setDeclaredValue(className, type, instance, pair.getName(), pair.getValue());
}
public static void setDeclaredValues(Object instance, FieldPair... pairs) throws Exception {
for (FieldPair pair : pairs)
setDeclaredValue(instance, pair);
}
public static void setDeclaredValues(Class<?> clazz, Object instance, FieldPair... pairs) throws Exception {
for (FieldPair pair : pairs)
setDeclaredValue(clazz, instance, pair);
}
public static void setDeclaredValues(String className, PackageType type, Object instance, FieldPair... pairs) throws Exception {
setDeclaredValues(getClass(className, type), instance, pairs);
}
public static void setDeclaredValues(String className, SubPackageType type, Object instance, FieldPair... pairs) throws Exception {
setDeclaredValues(getClass(className, type), instance, pairs);
}
/**
* This class is part of the ReflectionHandler and follows the same usage conditions
*
* @author DarkBlade12
*/
public enum DataType {
BYTE(byte.class, Byte.class),
SHORT(short.class, Short.class),
INTEGER(int.class, Integer.class),
LONG(long.class, Long.class),
CHARACTER(char.class, Character.class),
FLOAT(float.class, Float.class),
DOUBLE(double.class, Double.class),
BOOLEAN(boolean.class, Boolean.class);
private static final Map<Class<?>, DataType> CLASS_MAP = new HashMap<Class<?>, DataType>();
private final Class<?> primitive;
private final Class<?> reference;
static {
for (DataType t : values()) {
CLASS_MAP.put(t.primitive, t);
CLASS_MAP.put(t.reference, t);
}
}
private DataType(Class<?> primitive, Class<?> reference) {
this.primitive = primitive;
this.reference = reference;
}
public Class<?> getPrimitive() {
return this.primitive;
}
public Class<?> getReference() {
return this.reference;
}
public static DataType fromClass(Class<?> c) {
return CLASS_MAP.get(c);
}
public static Class<?> getPrimitive(Class<?> c) {
DataType t = fromClass(c);
return t == null ? c : t.getPrimitive();
}
public static Class<?> getReference(Class<?> c) {
DataType t = fromClass(c);
return t == null ? c : t.getReference();
}
public static Class<?>[] convertToPrimitive(Class<?>[] classes) {
int length = classes == null ? 0 : classes.length;
Class<?>[] types = new Class<?>[length];
for (int i = 0; i < length; i++)
types[i] = getPrimitive(classes[i]);
return types;
}
public static Class<?>[] convertToPrimitive(Object[] objects) {
int length = objects == null ? 0 : objects.length;
Class<?>[] types = new Class<?>[length];
for (int i = 0; i < length; i++)
types[i] = getPrimitive(objects[i].getClass());
return types;
}
public static boolean equalsArray(Class<?>[] a1, Class<?>[] a2) {
if (a1 == null || a2 == null || a1.length != a2.length)
return false;
for (int i = 0; i < a1.length; i++)
if (!a1[i].equals(a2[i]) && !a1[i].isAssignableFrom(a2[i]))
return false;
return true;
}
}
/**
* This class is part of the ReflectionHandler and follows the same usage conditions
*
* @author DarkBlade12
*/
public final class FieldPair {
private final String name;
private final Object value;
public FieldPair(String name, Object value) {
this.name = name;
this.value = value;
}
public String getName() {
return this.name;
}
public Object getValue() {
return this.value;
}
}
/**
* This class is part of the ReflectionHandler and follows the same usage conditions
*
* @author DarkBlade12
*/
public enum PackageType {
MINECRAFT_SERVER("net.minecraft.server." + Bukkit.getServer().getClass().getPackage().getName().substring(23)),
CRAFTBUKKIT(Bukkit.getServer().getClass().getPackage().getName());
private final String name;
private PackageType(String name) {
this.name = name;
}
public String getName() {
return this.name;
}
@Override
public String toString() {
return name;
}
}
/**
* This class is part of the ReflectionHandler and follows the same usage conditions
*
* @author DarkBlade12
*/
public enum SubPackageType {
BLOCK,
CHUNKIO,
COMMAND,
CONVERSATIONS,
ENCHANTMENS,
ENTITY,
EVENT,
GENERATOR,
HELP,
INVENTORY,
MAP,
METADATA,
POTION,
PROJECTILES,
SCHEDULER,
SCOREBOARD,
UPDATER,
UTIL;
private final String name;
private SubPackageType() {
name = PackageType.CRAFTBUKKIT + "." + name().toLowerCase();
}
public String getName() {
return this.name;
}
@Override
public String toString() {
return name;
}
}
/**
* This class is part of the ReflectionHandler and follows the same usage conditions
*
* @author DarkBlade12
*/
public enum PacketType {
HANDSHAKING_IN_SET_PROTOCOL("PacketHandshakingInSetProtocol"),
LOGIN_IN_ENCRYPTION_BEGIN("PacketLoginInEncryptionBegin"),
LOGIN_IN_START("PacketLoginInStart"),
LOGIN_OUT_DISCONNECT("PacketLoginOutDisconnect"),
LOGIN_OUT_ENCRYPTION_BEGIN("PacketLoginOutEncryptionBegin"),
LOGIN_OUT_SUCCESS("PacketLoginOutSuccess"),
PLAY_IN_ABILITIES("PacketPlayInAbilities"),
PLAY_IN_ARM_ANIMATION("PacketPlayInArmAnimation"),
PLAY_IN_BLOCK_DIG("PacketPlayInBlockDig"),
PLAY_IN_BLOCK_PLACE("PacketPlayInBlockPlace"),
PLAY_IN_CHAT("PacketPlayInChat"),
PLAY_IN_CLIENT_COMMAND("PacketPlayInClientCommand"),
PLAY_IN_CLOSE_WINDOW("PacketPlayInCloseWindow"),
PLAY_IN_CUSTOM_PAYLOAD("PacketPlayInCustomPayload"),
PLAY_IN_ENCHANT_ITEM("PacketPlayInEnchantItem"),
PLAY_IN_ENTITY_ACTION("PacketPlayInEntityAction"),
PLAY_IN_FLYING("PacketPlayInFlying"),
PLAY_IN_HELD_ITEM_SLOT("PacketPlayInHeldItemSlot"),
PLAY_IN_KEEP_ALIVE("PacketPlayInKeepAlive"),
PLAY_IN_LOOK("PacketPlayInLook"),
PLAY_IN_POSITION("PacketPlayInPosition"),
PLAY_IN_POSITION_LOOK("PacketPlayInPositionLook"),
PLAY_IN_SET_CREATIVE_SLOT("PacketPlayInSetCreativeSlot "),
PLAY_IN_SETTINGS("PacketPlayInSettings"),
PLAY_IN_STEER_VEHICLE("PacketPlayInSteerVehicle"),
PLAY_IN_TAB_COMPLETE("PacketPlayInTabComplete"),
PLAY_IN_TRANSACTION("PacketPlayInTransaction"),
PLAY_IN_UPDATE_SIGN("PacketPlayInUpdateSign"),
PLAY_IN_USE_ENTITY("PacketPlayInUseEntity"),
PLAY_IN_WINDOW_CLICK("PacketPlayInWindowClick"),
PLAY_OUT_ABILITIES("PacketPlayOutAbilities"),
PLAY_OUT_ANIMATION("PacketPlayOutAnimation"),
PLAY_OUT_ATTACH_ENTITY("PacketPlayOutAttachEntity"),
PLAY_OUT_BED("PacketPlayOutBed"),
PLAY_OUT_BLOCK_ACTION("PacketPlayOutBlockAction"),
PLAY_OUT_BLOCK_BREAK_ANIMATION("PacketPlayOutBlockBreakAnimation"),
PLAY_OUT_BLOCK_CHANGE("PacketPlayOutBlockChange"),
PLAY_OUT_CHAT("PacketPlayOutChat"),
PLAY_OUT_CLOSE_WINDOW("PacketPlayOutCloseWindow"),
PLAY_OUT_COLLECT("PacketPlayOutCollect"),
PLAY_OUT_CRAFT_PROGRESS_BAR("PacketPlayOutCraftProgressBar"),
PLAY_OUT_CUSTOM_PAYLOAD("PacketPlayOutCustomPayload"),
PLAY_OUT_ENTITY("PacketPlayOutEntity"),
PLAY_OUT_ENTITY_DESTROY("PacketPlayOutEntityDestroy"),
PLAY_OUT_ENTITY_EFFECT("PacketPlayOutEntityEffect"),
PLAY_OUT_ENTITY_EQUIPMENT("PacketPlayOutEntityEquipment"),
PLAY_OUT_ENTITY_HEAD_ROTATION("PacketPlayOutEntityHeadRotation"),
PLAY_OUT_ENTITY_LOOK("PacketPlayOutEntityLook"),
PLAY_OUT_ENTITY_METADATA("PacketPlayOutEntityMetadata"),
PLAY_OUT_ENTITY_STATUS("PacketPlayOutEntityStatus"),
PLAY_OUT_ENTITY_TELEPORT("PacketPlayOutEntityTeleport"),
PLAY_OUT_ENTITY_VELOCITY("PacketPlayOutEntityVelocity"),
PLAY_OUT_EXPERIENCE("PacketPlayOutExperience"),
PLAY_OUT_EXPLOSION("PacketPlayOutExplosion"),
PLAY_OUT_GAME_STATE_CHANGE("PacketPlayOutGameStateChange"),
PLAY_OUT_HELD_ITEM_SLOT("PacketPlayOutHeldItemSlot"),
PLAY_OUT_KEEP_ALIVE("PacketPlayOutKeepAlive"),
PLAY_OUT_KICK_DISCONNECT("PacketPlayOutKickDisconnect"),
PLAY_OUT_LOGIN("PacketPlayOutLogin"),
PLAY_OUT_MAP("PacketPlayOutMap"),
PLAY_OUT_MAP_CHUNK("PacketPlayOutMapChunk"),
PLAY_OUT_MAP_CHUNK_BULK("PacketPlayOutMapChunkBulk"),
PLAY_OUT_MULTI_BLOCK_CHANGE("PacketPlayOutMultiBlockChange"),
PLAY_OUT_NAMED_ENTITY_SPAWN("PacketPlayOutNamedEntitySpawn"),
PLAY_OUT_NAMED_SOUND_EFFECT("PacketPlayOutNamedSoundEffect"),
PLAY_OUT_OPEN_SIGN_EDITOR("PacketPlayOutOpenSignEditor"),
PLAY_OUT_OPEN_WINDOW("PacketPlayOutOpenWindow"),
PLAY_OUT_PLAYER_INFO("PacketPlayOutPlayerInfo"),
PLAY_OUT_POSITION("PacketPlayOutPosition"),
PLAY_OUT_REL_ENTITY_MOVE("PacketPlayOutRelEntityMove"),
PLAY_OUT_REL_ENTITY_MOVE_LOOK("PacketPlayOutRelEntityMoveLook"),
PLAY_OUT_REMOVE_ENTITY_EFFECT("PacketPlayOutRemoveEntityEffect"),
PLAY_OUT_RESPAWN("PacketPlayOutRespawn"),
PLAY_OUT_SCOREBOARD_DISPLAY_OBJECTIVE("PacketPlayOutScoreboardDisplayObjective"),
PLAY_OUT_SCOREBOARD_OBJECTIVE("PacketPlayOutScoreboardObjective"),
PLAY_OUT_SCOREBOARD_SCORE("PacketPlayOutScoreboardScore"),
PLAY_OUT_SCOREBOARD_TEAM("PacketPlayOutScoreboardTeam"),
PLAY_OUT_SET_SLOT("PacketPlayOutSetSlot"),
PLAY_OUT_SPAWN_ENTITY("PacketPlayOutSpawnEntity"),
PLAY_OUT_SPAWN_ENTITY_EXPERIENCE_ORB("PacketPlayOutSpawnEntityExperienceOrb"),
PLAY_OUT_SPAWN_ENTITY_LIVING("PacketPlayOutSpawnEntityLiving"),
PLAY_OUT_SPAWN_ENTITY_PAINTING("PacketPlayOutSpawnEntityPainting"),
PLAY_OUT_SPAWN_ENTITY_WEATHER("PacketPlayOutSpawnEntityWeather"),
PLAY_OUT_SPAWN_POSITION("PacketPlayOutSpawnPosition"),
PLAY_OUT_STATISTIC("PacketPlayOutStatistic"),
PLAY_OUT_TAB_COMPLETE("PacketPlayOutTabComplete"),
PLAY_OUT_TILE_ENTITY_DATA("PacketPlayOutTileEntityData"),
PLAY_OUT_TRANSACTION("PacketPlayOutTransaction"),
PLAY_OUT_UPDATE_ATTRIBUTES("PacketPlayOutUpdateAttributes"),
PLAY_OUT_UPDATE_HEALTH("PacketPlayOutUpdateHealth"),
PLAY_OUT_UPDATE_SIGN("PacketPlayOutUpdateSign"),
PLAY_OUT_UPDATE_TIME("PacketPlayOutUpdateTime"),
PLAY_OUT_WINDOW_ITEMS("PacketPlayOutWindowItems"),
PLAY_OUT_WORLD_EVENT("PacketPlayOutWorldEvent"),
PLAY_OUT_WORLD_PARTICLES("PacketPlayOutWorldParticles"),
STATUS_IN_PING("PacketStatusInPing"),
STATUS_IN_START("PacketStatusInStart"),
STATUS_OUT_PONG("PacketStatusOutPong"),
STATUS_OUT_SERVER_INFO("PacketStatusOutServerInfo");
private final String name;
private Class<?> packet;
private PacketType(String name) {
this.name = name;
}
public String getName() {
return this.getName();
}
public Class<?> getPacket() throws Exception {
return packet == null ? packet = ReflectionHandler.getClass(name, PackageType.MINECRAFT_SERVER) : packet;
}
}
}