001/* 002 * Trident - A Multithreaded Server Alternative 003 * Copyright 2014 The TridentSDK Team 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package net.tridentsdk.meta.block; 018 019import javax.annotation.concurrent.ThreadSafe; 020 021/** 022 * Utility class for manipulating byte arrays 023 * 024 * @author The TridentSDK Team 025 * @since 0.4-alpha 026 */ 027@ThreadSafe 028public final class ByteArray { 029 private ByteArray() { 030 } 031 032 /** 033 * Writes the second end of the short to a byte array 034 * 035 * @param s the short to write 036 * @return the encoded short 037 */ 038 public static byte writeSecond(short s) { 039 return (byte) s; 040 } 041 042 /** 043 * Writes the first end of the short of the byte array 044 * 045 * @param s the short to write 046 * @return the encoded short 047 */ 048 public static byte writeFirst(short s) { 049 return (byte) ((s >> 8) & 0xFF); 050 } 051 052 /** 053 * Reads a short from two bytes in big endian order 054 * 055 * @param first the first byte 056 * @param second the second byte 057 * @return the decoded short 058 */ 059 public static short readShort(byte first, byte second) { 060 return (short) ((first << 8) + (second & 0xFF)); 061 } 062}