mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/EncodingUtils.java@fc2d59ddac77
mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/EncodingUtils.java
Wed, 31 Dec 2014 07:22:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:22:50 +0100
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
- permissions
- -rw-r--r--
Correct previous dual key logic pending first delivery installment.
1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package ch.boye.httpclientandroidlib.util;
29 import java.io.UnsupportedEncodingException;
31 import ch.boye.httpclientandroidlib.protocol.HTTP;
33 /**
34 * The home for utility methods that handle various encoding tasks.
35 *
36 *
37 * @since 4.0
38 */
39 public final class EncodingUtils {
41 /**
42 * Converts the byte array of HTTP content characters to a string. If
43 * the specified charset is not supported, default system encoding
44 * is used.
45 *
46 * @param data the byte array to be encoded
47 * @param offset the index of the first byte to encode
48 * @param length the number of bytes to encode
49 * @param charset the desired character encoding
50 * @return The result of the conversion.
51 */
52 public static String getString(
53 final byte[] data,
54 int offset,
55 int length,
56 String charset
57 ) {
59 if (data == null) {
60 throw new IllegalArgumentException("Parameter may not be null");
61 }
63 if (charset == null || charset.length() == 0) {
64 throw new IllegalArgumentException("charset may not be null or empty");
65 }
67 try {
68 return new String(data, offset, length, charset);
69 } catch (UnsupportedEncodingException e) {
70 return new String(data, offset, length);
71 }
72 }
75 /**
76 * Converts the byte array of HTTP content characters to a string. If
77 * the specified charset is not supported, default system encoding
78 * is used.
79 *
80 * @param data the byte array to be encoded
81 * @param charset the desired character encoding
82 * @return The result of the conversion.
83 */
84 public static String getString(final byte[] data, final String charset) {
85 if (data == null) {
86 throw new IllegalArgumentException("Parameter may not be null");
87 }
88 return getString(data, 0, data.length, charset);
89 }
91 /**
92 * Converts the specified string to a byte array. If the charset is not supported the
93 * default system charset is used.
94 *
95 * @param data the string to be encoded
96 * @param charset the desired character encoding
97 * @return The resulting byte array.
98 */
99 public static byte[] getBytes(final String data, final String charset) {
101 if (data == null) {
102 throw new IllegalArgumentException("data may not be null");
103 }
105 if (charset == null || charset.length() == 0) {
106 throw new IllegalArgumentException("charset may not be null or empty");
107 }
109 try {
110 return data.getBytes(charset);
111 } catch (UnsupportedEncodingException e) {
112 return data.getBytes();
113 }
114 }
116 /**
117 * Converts the specified string to byte array of ASCII characters.
118 *
119 * @param data the string to be encoded
120 * @return The string as a byte array.
121 */
122 public static byte[] getAsciiBytes(final String data) {
124 if (data == null) {
125 throw new IllegalArgumentException("Parameter may not be null");
126 }
128 try {
129 return data.getBytes(HTTP.US_ASCII);
130 } catch (UnsupportedEncodingException e) {
131 throw new Error("HttpClient requires ASCII support");
132 }
133 }
135 /**
136 * Converts the byte array of ASCII characters to a string. This method is
137 * to be used when decoding content of HTTP elements (such as response
138 * headers)
139 *
140 * @param data the byte array to be encoded
141 * @param offset the index of the first byte to encode
142 * @param length the number of bytes to encode
143 * @return The string representation of the byte array
144 */
145 public static String getAsciiString(final byte[] data, int offset, int length) {
147 if (data == null) {
148 throw new IllegalArgumentException("Parameter may not be null");
149 }
151 try {
152 return new String(data, offset, length, HTTP.US_ASCII);
153 } catch (UnsupportedEncodingException e) {
154 throw new Error("HttpClient requires ASCII support");
155 }
156 }
158 /**
159 * Converts the byte array of ASCII characters to a string. This method is
160 * to be used when decoding content of HTTP elements (such as response
161 * headers)
162 *
163 * @param data the byte array to be encoded
164 * @return The string representation of the byte array
165 */
166 public static String getAsciiString(final byte[] data) {
167 if (data == null) {
168 throw new IllegalArgumentException("Parameter may not be null");
169 }
170 return getAsciiString(data, 0, data.length);
171 }
173 /**
174 * This class should not be instantiated.
175 */
176 private EncodingUtils() {
177 }
179 }
