1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.googlecode.android_scripting;
18 
19 public class ConvertUtils {
20     /**
21      * Converts a String of comma separated bytes to a byte array
22      *
23      * @param value The value to convert
24      * @return the byte array
25      */
convertStringToByteArray(String value)26     public static byte[] convertStringToByteArray(String value) {
27         if (value.equals("")) {
28             return new byte[0];
29         }
30         String[] parseString = value.split(",");
31         byte[] byteArray = new byte[parseString.length];
32         if (byteArray.length > 0) {
33             for (int i = 0; i < parseString.length; i++) {
34                 int val = Integer.valueOf(parseString[i].trim());
35                 if (val < 0 || val > 255)
36                     throw new java.lang.NumberFormatException("Val must be between 0 and 255");
37                 byteArray[i] = (byte)val;
38             }
39         }
40         return byteArray;
41     }
42 
43     /**
44      * Converts a byte array to a comma separated String
45      *
46      * @param byteArray
47      * @return comma separated string of bytes
48      */
convertByteArrayToString(byte[] byteArray)49     public static String convertByteArrayToString(byte[] byteArray) {
50         String ret = "";
51         if (byteArray != null) {
52             for (int i = 0; i < byteArray.length; i++) {
53                 if ((i + 1) != byteArray.length) {
54                     ret = ret + Integer.valueOf((byteArray[i]&0xFF)) + ",";
55                 }
56                 else {
57                     ret = ret + Integer.valueOf((byteArray[i]&0xFF));
58                 }
59             }
60         }
61         return ret;
62     }
63 
64 }
65