| /* GENERATED SOURCE. DO NOT MODIFY. */ |
| /* |
| * Copyright (C) 2014 Square, Inc. |
| * |
| * 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 com.android.okhttp.okio; |
| |
| import java.nio.charset.Charset; |
| |
| final class Util { |
| /** A cheap and type-safe constant for the UTF-8 Charset. */ |
| public static final Charset UTF_8 = Charset.forName("UTF-8"); |
| |
| private Util() { |
| } |
| |
| public static void checkOffsetAndCount(long size, long offset, long byteCount) { |
| if ((offset | byteCount) < 0 || offset > size || size - offset < byteCount) { |
| throw new ArrayIndexOutOfBoundsException( |
| String.format("size=%s offset=%s byteCount=%s", size, offset, byteCount)); |
| } |
| } |
| |
| public static short reverseBytesShort(short s) { |
| int i = s & 0xffff; |
| int reversed = (i & 0xff00) >>> 8 |
| | (i & 0x00ff) << 8; |
| return (short) reversed; |
| } |
| |
| public static int reverseBytesInt(int i) { |
| return (i & 0xff000000) >>> 24 |
| | (i & 0x00ff0000) >>> 8 |
| | (i & 0x0000ff00) << 8 |
| | (i & 0x000000ff) << 24; |
| } |
| |
| public static long reverseBytesLong(long v) { |
| return (v & 0xff00000000000000L) >>> 56 |
| | (v & 0x00ff000000000000L) >>> 40 |
| | (v & 0x0000ff0000000000L) >>> 24 |
| | (v & 0x000000ff00000000L) >>> 8 |
| | (v & 0x00000000ff000000L) << 8 |
| | (v & 0x0000000000ff0000L) << 24 |
| | (v & 0x000000000000ff00L) << 40 |
| | (v & 0x00000000000000ffL) << 56; |
| } |
| |
| /** |
| * Throws {@code t}, even if the declared throws clause doesn't permit it. |
| * This is a terrible – but terribly convenient – hack that makes it easy to |
| * catch and rethrow exceptions after cleanup. See Java Puzzlers #43. |
| */ |
| public static void sneakyRethrow(Throwable t) { |
| Util.<Error>sneakyThrow2(t); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private static <T extends Throwable> void sneakyThrow2(Throwable t) throws T { |
| throw (T) t; |
| } |
| |
| public static boolean arrayRangeEquals( |
| byte[] a, int aOffset, byte[] b, int bOffset, int byteCount) { |
| for (int i = 0; i < byteCount; i++) { |
| if (a[i + aOffset] != b[i + bOffset]) return false; |
| } |
| return true; |
| } |
| } |