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@@ -1,699 +0,0 @@
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-/*
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- * Licensed to the Apache Software Foundation (ASF) under one or more
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- * contributor license agreements. See the NOTICE file distributed with
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- * this work for additional information regarding copyright ownership.
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- * The ASF licenses this file to You under the Apache License, Version 2.0
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- * (the "License"); you may not use this file except in compliance with
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- * the License. You may obtain a copy of the License at
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- *
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- * http://www.apache.org/licenses/LICENSE-2.0
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- *
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- * Unless required by applicable law or agreed to in writing, software
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- * distributed under the License is distributed on an "AS IS" BASIS,
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- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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- * See the License for the specific language governing permissions and
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- * limitations under the License.
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- */
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-package org.apache.dolphinscheduler.common.utils;
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-
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-import org.slf4j.Logger;
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-import org.slf4j.LoggerFactory;
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-
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-import java.math.BigDecimal;
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-import java.math.BigInteger;
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-import java.nio.ByteBuffer;
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-import java.nio.charset.StandardCharsets;
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-
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-/**
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- * Utility class that handles Bytes
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- */
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-public class Bytes {
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-
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- private static final Logger logger = LoggerFactory.getLogger(Bytes.class);
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- public static final String UTF8_ENCODING = "UTF-8";
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- //An empty instance.
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- public static final byte [] EMPTY_BYTE_ARRAY = new byte [0];
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-
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- /**
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- * Size of int in bytes
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- */
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- public static final int SIZEOF_INT = Integer.SIZE / Byte.SIZE;
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-
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- /**
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- * Size of long in bytes
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- */
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- public static final int SIZEOF_LONG = Long.SIZE / Byte.SIZE;
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-
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- /**
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- * Size of short in bytes
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- */
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- public static final int SIZEOF_SHORT = Short.SIZE / Byte.SIZE;
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-
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-
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-
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- /**
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- * Put bytes at the specified byte array position.
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- * @param tgtBytes the byte array
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- * @param tgtOffset position in the array
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- * @param srcBytes array to write out
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- * @param srcOffset source offset
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- * @param srcLength source length
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- * @return incremented offset
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- */
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- public static int putBytes(byte[] tgtBytes, int tgtOffset, byte[] srcBytes,
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- int srcOffset, int srcLength) {
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- System.arraycopy(srcBytes, srcOffset, tgtBytes, tgtOffset, srcLength);
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- return tgtOffset + srcLength;
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- }
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-
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- /**
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- * Write a single byte out to the specified byte array position.
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- * @param bytes the byte array
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- * @param offset position in the array
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- * @param b byte to write out
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- * @return incremented offset
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- */
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- public static int putByte(byte[] bytes, int offset, byte b) {
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- bytes[offset] = b;
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- return offset + 1;
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- }
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-
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- /**
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- * Returns a new byte array, copied from the passed ByteBuffer.
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- * @param bb A ByteBuffer
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- * @return the byte array
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- */
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- public static byte[] toBytes(ByteBuffer bb) {
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- int length = bb.limit();
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- byte [] result = new byte[length];
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- System.arraycopy(bb.array(), bb.arrayOffset(), result, 0, length);
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- return result;
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- }
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-
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- /**
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- * @param b Presumed UTF-8 encoded byte array.
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- * @return String made from <code>b</code>
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- */
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- public static String toString(final byte [] b) {
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- if (b == null) {
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- return null;
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- }
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- return toString(b, 0, b.length);
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- }
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-
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- /**
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- * Joins two byte arrays together using a separator.
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- * @param b1 The first byte array.
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- * @param sep The separator to use.
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- * @param b2 The second byte array.
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- * @return two byte arrays together using a separator.
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- */
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- public static String toString(final byte [] b1,
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- String sep,
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- final byte [] b2) {
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- return toString(b1, 0, b1.length) + sep + toString(b2, 0, b2.length);
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- }
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-
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- /**
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- * This method will convert utf8 encoded bytes into a string. If
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- * an UnsupportedEncodingException occurs, this method will eat it
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- * and return null instead.
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- *
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- * @param b Presumed UTF-8 encoded byte array.
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- * @param off offset into array
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- * @param len length of utf-8 sequence
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- * @return String made from <code>b</code> or null
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- */
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- public static String toString(final byte [] b, int off, int len) {
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- if (b == null) {
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- return null;
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- }
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- if (len == 0) {
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- return "";
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- }
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- return new String(b, off, len, StandardCharsets.UTF_8);
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- }
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-
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-
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- /**
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- * Converts a string to a UTF-8 byte array.
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- * @param s string
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- * @return the byte array
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- */
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- public static byte[] toBytes(String s) {
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- return s.getBytes(StandardCharsets.UTF_8);
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- }
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-
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- /**
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- * Convert a boolean to a byte array. True becomes -1
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- * and false becomes 0.
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- *
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- * @param b value
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- * @return <code>b</code> encoded in a byte array.
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- */
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- public static byte [] toBytes(final boolean b) {
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- return new byte[] { b ? (byte) -1 : (byte) 0 };
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- }
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-
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- /**
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- * Reverses {@link #toBytes(boolean)}
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- * @param b array
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- * @return True or false.
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- */
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- public static boolean toBoolean(final byte [] b) {
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- if (b.length != 1) {
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- throw new IllegalArgumentException("Array has wrong size: " + b.length);
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- }
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- return b[0] != (byte) 0;
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- }
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-
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- /**
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- * Convert a long value to a byte array using big-endian.
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- *
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- * @param val value to convert
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- * @return the byte array
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- */
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- public static byte[] toBytes(long val) {
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- byte [] b = new byte[8];
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- for (int i = 7; i > 0; i--) {
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- b[i] = (byte) val;
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- val >>>= 8;
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- }
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- b[0] = (byte) val;
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- return b;
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- }
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-
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- /**
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- * Converts a byte array to a long value. Reverses
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- * {@link #toBytes(long)}
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- * @param bytes array
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- * @return the long value
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- */
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- public static long toLong(byte[] bytes) {
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- return toLong(bytes, 0, SIZEOF_LONG);
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- }
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-
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- /**
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- * Converts a byte array to a long value. Assumes there will be
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- * {@link #SIZEOF_LONG} bytes available.
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- *
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- * @param bytes bytes
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- * @param offset offset
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- * @return the long value
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- */
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- public static long toLong(byte[] bytes, int offset) {
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- return toLong(bytes, offset, SIZEOF_LONG);
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- }
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-
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- /**
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- * Converts a byte array to a long value.
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- *
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- * @param bytes array of bytes
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- * @param offset offset into array
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- * @param length length of data (must be {@link #SIZEOF_LONG})
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- * @return the long value
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- * @throws IllegalArgumentException if length is not {@link #SIZEOF_LONG} or
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- * if there's not enough room in the array at the offset indicated.
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- */
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- public static long toLong(byte[] bytes, int offset, final int length) {
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- if (length != SIZEOF_LONG || offset + length > bytes.length) {
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- throw explainWrongLengthOrOffset(bytes, offset, length, SIZEOF_LONG);
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- }
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- long l = 0;
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- for(int i = offset; i < offset + length; i++) {
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- l <<= 8;
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- l ^= bytes[i] & 0xFF;
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- }
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- return l;
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- }
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-
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- private static IllegalArgumentException
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- explainWrongLengthOrOffset(final byte[] bytes,
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- final int offset,
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- final int length,
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- final int expectedLength) {
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- String reason;
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- if (length != expectedLength) {
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- reason = "Wrong length: " + length + ", expected " + expectedLength;
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- } else {
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- reason = "offset (" + offset + ") + length (" + length + ") exceed the"
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- + " capacity of the array: " + bytes.length;
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- }
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- return new IllegalArgumentException(reason);
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- }
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-
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- /**
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- * Put a long value out to the specified byte array position.
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- * @param bytes the byte array
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- * @param offset position in the array
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- * @param val long to write out
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- * @return incremented offset
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- * @throws IllegalArgumentException if the byte array given doesn't have
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- * enough room at the offset specified.
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- */
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- public static int putLong(byte[] bytes, int offset, long val) {
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- if (bytes.length - offset < SIZEOF_LONG) {
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- throw new IllegalArgumentException("Not enough room to put a long at"
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- + " offset " + offset + " in a " + bytes.length + " byte array");
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- }
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- for(int i = offset + 7; i > offset; i--) {
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- bytes[i] = (byte) val;
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- val >>>= 8;
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- }
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- bytes[offset] = (byte) val;
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- return offset + SIZEOF_LONG;
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- }
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-
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- /**
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- * Presumes float encoded as IEEE 754 floating-point "single format"
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- * @param bytes byte array
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- * @return Float made from passed byte array.
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- */
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- public static float toFloat(byte [] bytes) {
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- return toFloat(bytes, 0);
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- }
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-
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- /**
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- * Presumes float encoded as IEEE 754 floating-point "single format"
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- * @param bytes array to convert
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- * @param offset offset into array
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- * @return Float made from passed byte array.
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- */
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- public static float toFloat(byte [] bytes, int offset) {
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- return Float.intBitsToFloat(toInt(bytes, offset, SIZEOF_INT));
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- }
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-
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- /**
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- * @param bytes byte array
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- * @param offset offset to write to
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- * @param f float value
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- * @return New offset in <code>bytes</code>
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- */
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- public static int putFloat(byte [] bytes, int offset, float f) {
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- return putInt(bytes, offset, Float.floatToRawIntBits(f));
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- }
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-
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- /**
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- * @param f float value
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- * @return the float represented as byte []
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- */
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- public static byte [] toBytes(final float f) {
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- // Encode it as int
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- return Bytes.toBytes(Float.floatToRawIntBits(f));
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- }
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-
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- /**
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- * @param bytes byte array
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- * @return Return double made from passed bytes.
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- */
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- public static double toDouble(final byte [] bytes) {
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- return toDouble(bytes, 0);
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- }
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-
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- /**
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- * @param bytes byte array
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- * @param offset offset where double is
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- * @return Return double made from passed bytes.
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- */
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- public static double toDouble(final byte [] bytes, final int offset) {
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- return Double.longBitsToDouble(toLong(bytes, offset, SIZEOF_LONG));
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- }
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-
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- /**
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- * @param bytes byte array
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- * @param offset offset to write to
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- * @param d value
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- * @return New offset into array <code>bytes</code>
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- */
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- public static int putDouble(byte [] bytes, int offset, double d) {
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- return putLong(bytes, offset, Double.doubleToLongBits(d));
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- }
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-
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- /**
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- * Serialize a double as the IEEE 754 double format output. The resultant
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- * array will be 8 bytes long.
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- *
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- * @param d value
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- * @return the double represented as byte []
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- */
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- public static byte [] toBytes(final double d) {
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- // Encode it as a long
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- return Bytes.toBytes(Double.doubleToRawLongBits(d));
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- }
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-
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- /**
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- * Convert an int value to a byte array
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- * @param val value
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- * @return the byte array
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- */
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- public static byte[] toBytes(int val) {
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- byte [] b = new byte[4];
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- for(int i = 3; i > 0; i--) {
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- b[i] = (byte) val;
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- val >>>= 8;
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- }
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- b[0] = (byte) val;
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- return b;
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- }
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-
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- /**
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- * Converts a byte array to an int value
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- * @param bytes byte array
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- * @return the int value
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- */
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- public static int toInt(byte[] bytes) {
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- return toInt(bytes, 0, SIZEOF_INT);
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- }
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-
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- /**
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- * Converts a byte array to an int value
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- * @param bytes byte array
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- * @param offset offset into array
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- * @return the int value
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- */
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- public static int toInt(byte[] bytes, int offset) {
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- return toInt(bytes, offset, SIZEOF_INT);
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- }
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-
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- /**
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- * Converts a byte array to an int value
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- * @param bytes byte array
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- * @param offset offset into array
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- * @param length length of int (has to be {@link #SIZEOF_INT})
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- * @return the int value
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- * @throws IllegalArgumentException if length is not {@link #SIZEOF_INT} or
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- * if there's not enough room in the array at the offset indicated.
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- */
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- public static int toInt(byte[] bytes, int offset, final int length) {
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- if (length != SIZEOF_INT || offset + length > bytes.length) {
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- throw explainWrongLengthOrOffset(bytes, offset, length, SIZEOF_INT);
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- }
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- int n = 0;
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- for(int i = offset; i < (offset + length); i++) {
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- n <<= 8;
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- n ^= bytes[i] & 0xFF;
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- }
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- return n;
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- }
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-
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- /**
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- * Put an int value out to the specified byte array position.
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- * @param bytes the byte array
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- * @param offset position in the array
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- * @param val int to write out
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- * @return incremented offset
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- * @throws IllegalArgumentException if the byte array given doesn't have
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- * enough room at the offset specified.
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- */
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- public static int putInt(byte[] bytes, int offset, int val) {
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- if (bytes.length - offset < SIZEOF_INT) {
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- throw new IllegalArgumentException("Not enough room to put an int at"
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- + " offset " + offset + " in a " + bytes.length + " byte array");
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- }
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- for(int i= offset + 3; i > offset; i--) {
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- bytes[i] = (byte) val;
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- val >>>= 8;
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- }
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- bytes[offset] = (byte) val;
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- return offset + SIZEOF_INT;
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- }
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-
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- /**
|
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- * Convert a short value to a byte array of {@link #SIZEOF_SHORT} bytes long.
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- * @param val value
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- * @return the byte array
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- */
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- public static byte[] toBytes(short val) {
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- byte[] b = new byte[SIZEOF_SHORT];
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- b[1] = (byte) val;
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- val >>= 8;
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- b[0] = (byte) val;
|
|
|
- return b;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Converts a byte array to a short value
|
|
|
- * @param bytes byte array
|
|
|
- * @return the short value
|
|
|
- */
|
|
|
- public static short toShort(byte[] bytes) {
|
|
|
- return toShort(bytes, 0, SIZEOF_SHORT);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Converts a byte array to a short value
|
|
|
- * @param bytes byte array
|
|
|
- * @param offset offset into array
|
|
|
- * @return the short value
|
|
|
- */
|
|
|
- public static short toShort(byte[] bytes, int offset) {
|
|
|
- return toShort(bytes, offset, SIZEOF_SHORT);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Converts a byte array to a short value
|
|
|
- * @param bytes byte array
|
|
|
- * @param offset offset into array
|
|
|
- * @param length length, has to be {@link #SIZEOF_SHORT}
|
|
|
- * @return the short value
|
|
|
- * @throws IllegalArgumentException if length is not {@link #SIZEOF_SHORT}
|
|
|
- * or if there's not enough room in the array at the offset indicated.
|
|
|
- */
|
|
|
- public static short toShort(byte[] bytes, int offset, final int length) {
|
|
|
- if (length != SIZEOF_SHORT || offset + length > bytes.length) {
|
|
|
- throw explainWrongLengthOrOffset(bytes, offset, length, SIZEOF_SHORT);
|
|
|
- }
|
|
|
- short n = 0;
|
|
|
- n ^= bytes[offset] & 0xFF;
|
|
|
- n <<= 8;
|
|
|
- n ^= bytes[offset+1] & 0xFF;
|
|
|
- return n;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * This method will get a sequence of bytes from pos to limit,
|
|
|
- * but will restore pos after.
|
|
|
- * @param buf buffer
|
|
|
- * @return byte array
|
|
|
- */
|
|
|
- public static byte[] getBytes(ByteBuffer buf) {
|
|
|
- int savedPos = buf.position();
|
|
|
- byte [] newBytes = new byte[buf.remaining()];
|
|
|
- buf.get(newBytes);
|
|
|
- buf.position(savedPos);
|
|
|
- return newBytes;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Put a short value out to the specified byte array position.
|
|
|
- * @param bytes the byte array
|
|
|
- * @param offset position in the array
|
|
|
- * @param val short to write out
|
|
|
- * @return incremented offset
|
|
|
- * @throws IllegalArgumentException if the byte array given doesn't have
|
|
|
- * enough room at the offset specified.
|
|
|
- */
|
|
|
- public static int putShort(byte[] bytes, int offset, short val) {
|
|
|
- if (bytes.length - offset < SIZEOF_SHORT) {
|
|
|
- throw new IllegalArgumentException("Not enough room to put a short at"
|
|
|
- + " offset " + offset + " in a " + bytes.length + " byte array");
|
|
|
- }
|
|
|
- bytes[offset+1] = (byte) val;
|
|
|
- val >>= 8;
|
|
|
- bytes[offset] = (byte) val;
|
|
|
- return offset + SIZEOF_SHORT;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Convert a BigDecimal value to a byte array
|
|
|
- *
|
|
|
- * @param val value
|
|
|
- * @return the byte array
|
|
|
- */
|
|
|
- public static byte[] toBytes(BigDecimal val) {
|
|
|
- byte[] valueBytes = val.unscaledValue().toByteArray();
|
|
|
- byte[] result = new byte[valueBytes.length + SIZEOF_INT];
|
|
|
- int offset = putInt(result, 0, val.scale());
|
|
|
- putBytes(result, offset, valueBytes, 0, valueBytes.length);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
- /**
|
|
|
- * Converts a byte array to a BigDecimal
|
|
|
- *
|
|
|
- * @param bytes bytes array
|
|
|
- * @return the char value
|
|
|
- */
|
|
|
- public static BigDecimal toBigDecimal(byte[] bytes) {
|
|
|
- return toBigDecimal(bytes, 0, bytes.length);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Converts a byte array to a BigDecimal value
|
|
|
- *
|
|
|
- * @param bytes bytes array
|
|
|
- * @param offset offset
|
|
|
- * @param length length
|
|
|
- * @return the char value
|
|
|
- */
|
|
|
- public static BigDecimal toBigDecimal(byte[] bytes, int offset, final int length) {
|
|
|
- if (bytes == null || length < SIZEOF_INT + 1 ||
|
|
|
- (offset + length > bytes.length)) {
|
|
|
- return null;
|
|
|
- }
|
|
|
-
|
|
|
- int scale = toInt(bytes, offset);
|
|
|
- byte[] tcBytes = new byte[length - SIZEOF_INT];
|
|
|
- System.arraycopy(bytes, offset + SIZEOF_INT, tcBytes, 0, length - SIZEOF_INT);
|
|
|
- return new BigDecimal(new BigInteger(tcBytes), scale);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * Put a BigDecimal value out to the specified byte array position.
|
|
|
- *
|
|
|
- * @param bytes the byte array
|
|
|
- * @param offset position in the array
|
|
|
- * @param val BigDecimal to write out
|
|
|
- * @return incremented offset
|
|
|
- */
|
|
|
- public static int putBigDecimal(byte[] bytes, int offset, BigDecimal val) {
|
|
|
- if (bytes == null) {
|
|
|
- return offset;
|
|
|
- }
|
|
|
-
|
|
|
- byte[] valueBytes = val.unscaledValue().toByteArray();
|
|
|
- byte[] result = new byte[valueBytes.length + SIZEOF_INT];
|
|
|
- offset = putInt(result, offset, val.scale());
|
|
|
- return putBytes(result, offset, valueBytes, 0, valueBytes.length);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a lower half
|
|
|
- * @param b upper half
|
|
|
- * @return New array that has a in lower half and b in upper half.
|
|
|
- */
|
|
|
- public static byte [] add(final byte [] a, final byte [] b) {
|
|
|
- return add(a, b, EMPTY_BYTE_ARRAY);
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a first third
|
|
|
- * @param b second third
|
|
|
- * @param c third third
|
|
|
- * @return New array made from a, b and c
|
|
|
- */
|
|
|
- public static byte [] add(final byte [] a, final byte [] b, final byte [] c) {
|
|
|
- byte [] result = new byte[a.length + b.length + c.length];
|
|
|
- System.arraycopy(a, 0, result, 0, a.length);
|
|
|
- System.arraycopy(b, 0, result, a.length, b.length);
|
|
|
- System.arraycopy(c, 0, result, a.length + b.length, c.length);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a array
|
|
|
- * @param length amount of bytes to grab
|
|
|
- * @return First <code>length</code> bytes from <code>a</code>
|
|
|
- */
|
|
|
- public static byte [] head(final byte [] a, final int length) {
|
|
|
- if (a.length < length) {
|
|
|
- return null;
|
|
|
- }
|
|
|
- byte [] result = new byte[length];
|
|
|
- System.arraycopy(a, 0, result, 0, length);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a array
|
|
|
- * @param length amount of bytes to snarf
|
|
|
- * @return Last <code>length</code> bytes from <code>a</code>
|
|
|
- */
|
|
|
- public static byte [] tail(final byte [] a, final int length) {
|
|
|
- if (a.length < length) {
|
|
|
- return null;
|
|
|
- }
|
|
|
- byte [] result = new byte[length];
|
|
|
- System.arraycopy(a, a.length - length, result, 0, length);
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a array
|
|
|
- * @param length new array size
|
|
|
- * @return Value in <code>a</code> plus <code>length</code> prepended 0 bytes
|
|
|
- */
|
|
|
- public static byte [] padHead(final byte [] a, final int length) {
|
|
|
- byte[] padding = getPadding(length);
|
|
|
- return add(padding,a);
|
|
|
- }
|
|
|
-
|
|
|
- private static byte[] getPadding(int length) {
|
|
|
- byte[] padding = new byte[length];
|
|
|
- for (int i = 0; i < length; i++) {
|
|
|
- padding[i] = 0;
|
|
|
- }
|
|
|
- return padding;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param a array
|
|
|
- * @param length new array size
|
|
|
- * @return Value in <code>a</code> plus <code>length</code> appended 0 bytes
|
|
|
- */
|
|
|
- public static byte [] padTail(final byte [] a, final int length) {
|
|
|
- byte[] padding = getPadding(length);
|
|
|
- return add(a,padding);
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
-
|
|
|
- /**
|
|
|
- * @param bytes array to hash
|
|
|
- * @param offset offset to start from
|
|
|
- * @param length length to hash
|
|
|
- * @return hash code
|
|
|
- * */
|
|
|
- public static int hashCode(byte[] bytes, int offset, int length) {
|
|
|
- int hash = 1;
|
|
|
- for (int i = offset; i < offset + length; i++) {
|
|
|
- hash = (31 * hash) + (int) bytes[i];
|
|
|
- }
|
|
|
- return hash;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param t operands
|
|
|
- * @return Array of byte arrays made from passed array of Text
|
|
|
- */
|
|
|
- public static byte [][] toByteArrays(final String [] t) {
|
|
|
- byte [][] result = new byte[t.length][];
|
|
|
- for (int i = 0; i < t.length; i++) {
|
|
|
- result[i] = Bytes.toBytes(t[i]);
|
|
|
- }
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param column operand
|
|
|
- * @return A byte array of a byte array where first and only entry is
|
|
|
- * <code>column</code>
|
|
|
- */
|
|
|
- public static byte [][] toByteArrays(final String column) {
|
|
|
- return toByteArrays(toBytes(column));
|
|
|
- }
|
|
|
-
|
|
|
- /**
|
|
|
- * @param column operand
|
|
|
- * @return A byte array of a byte array where first and only entry is
|
|
|
- * <code>column</code>
|
|
|
- */
|
|
|
- public static byte [][] toByteArrays(final byte [] column) {
|
|
|
- byte [][] result = new byte[1][];
|
|
|
- result[0] = column;
|
|
|
- return result;
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
-}
|
loushang