remove commons-codec&hierynomus (#118)

pom.xml

@@ -31,8 +31,6 @@
         <!-- dependencies -->
         <lombok.version>1.18.14</lombok.version>
         <prometheus.version>0.15.0</prometheus.version>
-        <commons-codec.version>1.13</commons-codec.version>
-        <hierynomus.version>0.9.0</hierynomus.version>
         <protobuf-java.version>3.11.0</protobuf-java.version>
         <jetcd-core.version>0.5.11</jetcd-core.version>
         <jackson.version>2.10.0</jackson.version>
@@ -70,16 +68,6 @@
             <version>${lombok.version}</version>
             <scope>provided</scope>
         </dependency>
-        <dependency>
-            <groupId>commons-codec</groupId>
-            <artifactId>commons-codec</artifactId>
-            <version>${commons-codec.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>com.hierynomus</groupId>
-            <artifactId>smbj</artifactId>
-            <version>${hierynomus.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>

src/main/java/com/jd/jdbc/common/Hex.java

@@ -0,0 +1,96 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.jd.jdbc.common;
+
+public class Hex {
+
+    /**
+     * Used to build output as Hex
+     */
+    private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd',
+        'e', 'f'};
+
+    /**
+     * Used to build output as Hex
+     */
+    private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D',
+        'E', 'F'};
+
+    /**
+     * Converts an array of bytes into a String representing the hexadecimal values of each byte in order. The returned
+     * String will be double the length of the passed array, as it takes two characters to represent any given byte.
+     *
+     * @param data a byte[] to convert to Hex characters
+     * @return A String containing lower-case hexadecimal characters
+     * @since 1.4
+     */
+    public static String encodeHexString(final byte[] data) {
+        return new String(encodeHex(data));
+    }
+
+
+    /**
+     * Converts an array of bytes into an array of characters representing the hexadecimal values of each byte in order.
+     * The returned array will be double the length of the passed array, as it takes two characters to represent any
+     * given byte.
+     *
+     * @param data a byte[] to convert to Hex characters
+     * @return A char[] containing lower-case hexadecimal characters
+     */
+    public static char[] encodeHex(final byte[] data) {
+        return encodeHex(data, true);
+    }
+
+
+    /**
+     * Converts an array of bytes into an array of characters representing the hexadecimal values of each byte in order.
+     * The returned array will be double the length of the passed array, as it takes two characters to represent any
+     * given byte.
+     *
+     * @param data        a byte[] to convert to Hex characters
+     * @param toLowerCase <code>true</code> converts to lowercase, <code>false</code> to uppercase
+     * @return A char[] containing hexadecimal characters in the selected case
+     * @since 1.4
+     */
+    public static char[] encodeHex(final byte[] data, final boolean toLowerCase) {
+        return encodeHex(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
+    }
+
+
+    /**
+     * Converts an array of bytes into an array of characters representing the hexadecimal values of each byte in order.
+     * The returned array will be double the length of the passed array, as it takes two characters to represent any
+     * given byte.
+     *
+     * @param data     a byte[] to convert to Hex characters
+     * @param toDigits the output alphabet (must contain at least 16 chars)
+     * @return A char[] containing the appropriate characters from the alphabet For best results, this should be either
+     * upper- or lower-case hex.
+     * @since 1.4
+     */
+    protected static char[] encodeHex(final byte[] data, final char[] toDigits) {
+        final int l = data.length;
+        final char[] out = new char[l << 1];
+        // two characters form the hex value.
+        for (int i = 0, j = 0; i < l; i++) {
+            out[j++] = toDigits[(0xF0 & data[i]) >>> 4];
+            out[j++] = toDigits[0x0F & data[i]];
+        }
+        return out;
+    }
+}