All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.voovan.tools.TUnsafe Maven / Gradle / Ivy

There is a newer version: 4.3.8
Show newest version
package org.voovan.tools;

import sun.misc.Unsafe;

import java.lang.reflect.Field;
import java.util.concurrent.ConcurrentHashMap;

/**
 * 类文字命名
 *
 * @author helyho
 *         

* Voovan Framework. * WebSite: https://github.com/helyho/Voovan * Licence: Apache v2 License */ public class TUnsafe { private static Unsafe unsafe; private static ConcurrentHashMap OFFSET_MAP = new ConcurrentHashMap(); static { try { Field field = Unsafe.class.getDeclaredField("theUnsafe"); field.setAccessible(true); unsafe = (Unsafe) field.get(null); } catch (Exception e) { e.printStackTrace(); } } public static Unsafe getUnsafe() { return unsafe; } public static Long getFieldOffset(Field field){ Long offset = OFFSET_MAP.get(field); if(offset==null){ offset = unsafe.objectFieldOffset(field); OFFSET_MAP.put(field, offset); } return offset; } public static T allocateInstance(Class clazz) throws InstantiationException { return (T) TUnsafe.unsafe.allocateInstance(clazz); } public static void putObject(Object obj, Field field, Object value){ unsafe.putObject(obj, getFieldOffset(field), value); } public static void putByte(Object obj, Field field, byte value){ unsafe.putByte(obj, getFieldOffset(field), value); } public static void putIntger(Object obj, Field field, int value){ unsafe.putInt(obj, getFieldOffset(field), value); } public static void putShort(Object obj, Field field, short value){ unsafe.putShort(obj, getFieldOffset(field), value); } public static void putBoolean(Object obj, Field field, boolean value){ unsafe.putBoolean(obj, getFieldOffset(field), value); } public static void putLong(Object obj, Field field, long value){ unsafe.putLong(obj, getFieldOffset(field), value); } public static void putFloat(Object obj, Field field, float value){ unsafe.putFloat(obj, getFieldOffset(field), value); } public static void putDouble(Object obj, Field field, double value){ unsafe.putDouble(obj, getFieldOffset(field), value); } public static void putChar(Object obj, Field field, char value){ unsafe.putChar(obj, getFieldOffset(field), value); } public static T getObject(Object obj, Field field){ return (T)unsafe.getObject(obj, getFieldOffset(field)); } public static byte getByte(Object obj, Field field){ return unsafe.getByte(obj, getFieldOffset(field)); } public static int getIntger(Object obj, Field field){ return unsafe.getInt(obj, getFieldOffset(field)); } public static short getShort(Object obj, Field field){ return unsafe.getShort(obj, getFieldOffset(field)); } public static boolean getBoolean(Object obj, Field field){ return unsafe.getBoolean(obj, getFieldOffset(field)); } public static long getLong(Object obj, Field field){ return unsafe.getLong(obj, getFieldOffset(field)); } public static float getFloat(Object obj, Field field){ return unsafe.getFloat(obj, getFieldOffset(field)); } public static double getDouble(Object obj, Field field){ return unsafe.getDouble(obj, getFieldOffset(field)); } public static char getChar(Object obj, Field field){ return unsafe.getChar(obj, getFieldOffset(field)); } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy