1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/EncodingUtils.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,179 @@
1.4 +/*
1.5 + * ====================================================================
1.6 + * Licensed to the Apache Software Foundation (ASF) under one
1.7 + * or more contributor license agreements. See the NOTICE file
1.8 + * distributed with this work for additional information
1.9 + * regarding copyright ownership. The ASF licenses this file
1.10 + * to you under the Apache License, Version 2.0 (the
1.11 + * "License"); you may not use this file except in compliance
1.12 + * with the License. You may obtain a copy of the License at
1.13 + *
1.14 + * http://www.apache.org/licenses/LICENSE-2.0
1.15 + *
1.16 + * Unless required by applicable law or agreed to in writing,
1.17 + * software distributed under the License is distributed on an
1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
1.19 + * KIND, either express or implied. See the License for the
1.20 + * specific language governing permissions and limitations
1.21 + * under the License.
1.22 + * ====================================================================
1.23 + *
1.24 + * This software consists of voluntary contributions made by many
1.25 + * individuals on behalf of the Apache Software Foundation. For more
1.26 + * information on the Apache Software Foundation, please see
1.27 + * <http://www.apache.org/>.
1.28 + *
1.29 + */
1.30 +package ch.boye.httpclientandroidlib.util;
1.31 +
1.32 +import java.io.UnsupportedEncodingException;
1.33 +
1.34 +import ch.boye.httpclientandroidlib.protocol.HTTP;
1.35 +
1.36 +/**
1.37 + * The home for utility methods that handle various encoding tasks.
1.38 + *
1.39 + *
1.40 + * @since 4.0
1.41 + */
1.42 +public final class EncodingUtils {
1.43 +
1.44 + /**
1.45 + * Converts the byte array of HTTP content characters to a string. If
1.46 + * the specified charset is not supported, default system encoding
1.47 + * is used.
1.48 + *
1.49 + * @param data the byte array to be encoded
1.50 + * @param offset the index of the first byte to encode
1.51 + * @param length the number of bytes to encode
1.52 + * @param charset the desired character encoding
1.53 + * @return The result of the conversion.
1.54 + */
1.55 + public static String getString(
1.56 + final byte[] data,
1.57 + int offset,
1.58 + int length,
1.59 + String charset
1.60 + ) {
1.61 +
1.62 + if (data == null) {
1.63 + throw new IllegalArgumentException("Parameter may not be null");
1.64 + }
1.65 +
1.66 + if (charset == null || charset.length() == 0) {
1.67 + throw new IllegalArgumentException("charset may not be null or empty");
1.68 + }
1.69 +
1.70 + try {
1.71 + return new String(data, offset, length, charset);
1.72 + } catch (UnsupportedEncodingException e) {
1.73 + return new String(data, offset, length);
1.74 + }
1.75 + }
1.76 +
1.77 +
1.78 + /**
1.79 + * Converts the byte array of HTTP content characters to a string. If
1.80 + * the specified charset is not supported, default system encoding
1.81 + * is used.
1.82 + *
1.83 + * @param data the byte array to be encoded
1.84 + * @param charset the desired character encoding
1.85 + * @return The result of the conversion.
1.86 + */
1.87 + public static String getString(final byte[] data, final String charset) {
1.88 + if (data == null) {
1.89 + throw new IllegalArgumentException("Parameter may not be null");
1.90 + }
1.91 + return getString(data, 0, data.length, charset);
1.92 + }
1.93 +
1.94 + /**
1.95 + * Converts the specified string to a byte array. If the charset is not supported the
1.96 + * default system charset is used.
1.97 + *
1.98 + * @param data the string to be encoded
1.99 + * @param charset the desired character encoding
1.100 + * @return The resulting byte array.
1.101 + */
1.102 + public static byte[] getBytes(final String data, final String charset) {
1.103 +
1.104 + if (data == null) {
1.105 + throw new IllegalArgumentException("data may not be null");
1.106 + }
1.107 +
1.108 + if (charset == null || charset.length() == 0) {
1.109 + throw new IllegalArgumentException("charset may not be null or empty");
1.110 + }
1.111 +
1.112 + try {
1.113 + return data.getBytes(charset);
1.114 + } catch (UnsupportedEncodingException e) {
1.115 + return data.getBytes();
1.116 + }
1.117 + }
1.118 +
1.119 + /**
1.120 + * Converts the specified string to byte array of ASCII characters.
1.121 + *
1.122 + * @param data the string to be encoded
1.123 + * @return The string as a byte array.
1.124 + */
1.125 + public static byte[] getAsciiBytes(final String data) {
1.126 +
1.127 + if (data == null) {
1.128 + throw new IllegalArgumentException("Parameter may not be null");
1.129 + }
1.130 +
1.131 + try {
1.132 + return data.getBytes(HTTP.US_ASCII);
1.133 + } catch (UnsupportedEncodingException e) {
1.134 + throw new Error("HttpClient requires ASCII support");
1.135 + }
1.136 + }
1.137 +
1.138 + /**
1.139 + * Converts the byte array of ASCII characters to a string. This method is
1.140 + * to be used when decoding content of HTTP elements (such as response
1.141 + * headers)
1.142 + *
1.143 + * @param data the byte array to be encoded
1.144 + * @param offset the index of the first byte to encode
1.145 + * @param length the number of bytes to encode
1.146 + * @return The string representation of the byte array
1.147 + */
1.148 + public static String getAsciiString(final byte[] data, int offset, int length) {
1.149 +
1.150 + if (data == null) {
1.151 + throw new IllegalArgumentException("Parameter may not be null");
1.152 + }
1.153 +
1.154 + try {
1.155 + return new String(data, offset, length, HTTP.US_ASCII);
1.156 + } catch (UnsupportedEncodingException e) {
1.157 + throw new Error("HttpClient requires ASCII support");
1.158 + }
1.159 + }
1.160 +
1.161 + /**
1.162 + * Converts the byte array of ASCII characters to a string. This method is
1.163 + * to be used when decoding content of HTTP elements (such as response
1.164 + * headers)
1.165 + *
1.166 + * @param data the byte array to be encoded
1.167 + * @return The string representation of the byte array
1.168 + */
1.169 + public static String getAsciiString(final byte[] data) {
1.170 + if (data == null) {
1.171 + throw new IllegalArgumentException("Parameter may not be null");
1.172 + }
1.173 + return getAsciiString(data, 0, data.length);
1.174 + }
1.175 +
1.176 + /**
1.177 + * This class should not be instantiated.
1.178 + */
1.179 + private EncodingUtils() {
1.180 + }
1.181 +
1.182 +}
