/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package scouter.util;
public class BitUtil {
public static long composite(int hkey, int wkey) {
return (long) hkey << 32 | ((long) wkey & 0xffffffffL);
}
public static int composite(short hkey, short wkey) {
return ((int) hkey << 16) | ((int) wkey & 0xffff);
}
public static short composite(byte hkey, byte wkey) {
return (short) (((short) hkey << 8) | ((short) wkey & (short) 0xff));
}
public static long setHigh(long src, int hkey) {
return (src & 0x00000000ffffffffL) | (long) hkey << 32;
}
public static long setLow(long src, int wkey) {
return (src & 0xffffffff00000000L) | ((long) wkey & 0xffffffffL);
}
public static int getHigh(long key) {
return (int) (key >>> 32) & 0xffffffff;
}
public static int getLow(long key) {
return (int) key & 0xffffffff;
}
public static short getHigh(int key) {
return (short) ((key >>> 16) & (short) 0xffff);
}
public static short getLow(int key) {
return (short) (key & (short) 0xffff);
}
public static byte getHigh(short key) {
return (byte) ((key >>> 8) & (short) 0xff);
}
public static byte getLow(short key) {
return (byte) (key & (short) 0xff);
}
public static void main(String[] args) {
int h=0;
int w=-1;
long ww = composite(h,w);
System.out.println(ww);
System.out.println(getLow(ww));
System.out.println(setLow(0L, -1));
}
}