Mercurial > hg > blitz_stable

annotate src/com/go/trove/net/HttpUtils.java @ 27:511648fa4d64 Version 2.1

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Version to 2.1
author Dan Creswell <dan.creswell@gmail.com>
date Mon, 04 Jan 2010 13:00:40 +0000
parents 3dc0c5604566
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 /*
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2 * HttpUtils.java
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3 *
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4 * Copyright (c) 2000 Walt Disney Internet Group. All Rights Reserved.
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5 *
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6 * Original author: Brian S O'Neill
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7 *
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8 * $Workfile:: HttpUtils.java $
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9 * $Author: dan $
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10 * $Revision: 1.1 $
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11 * $Date: Mon, 13 Oct 2003 12:20:39 +0100 $
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12 */
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13
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14 package com.go.trove.net;
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15
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16 import java.io.*;
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17
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18 /******************************************************************************
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19 *
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20 * @author Brian S O'Neill
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21 * @version
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22 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/04/03 <!-- $-->
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23 */
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24 public class HttpUtils {
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25 /**
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26 * Reads a line from an HTTP InputStream, using the given buffer for
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27 * temporary storage.
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28 *
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29 * @param in stream to read from
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30 * @param buffer temporary buffer to use
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31 * @throws IllegalArgumentException if the given InputStream doesn't
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32 * support marking
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33 */
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34 public static String readLine(InputStream in, byte[] buffer)
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35 throws IllegalArgumentException, IOException
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36 {
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37 return readLine(in, buffer, -1);
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38 }
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39
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40 /**
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41 * Reads a line from an HTTP InputStream, using the given buffer for
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42 * temporary storage.
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43 *
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44 * @param in stream to read from
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45 * @param buffer temporary buffer to use
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46 * @throws IllegalArgumentException if the given InputStream doesn't
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47 * support marking
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48 * @throws LineTooLongException when line is longer than the limit
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49 */
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50 public static String readLine(InputStream in, byte[] buffer, int limit)
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51 throws IllegalArgumentException, IOException, LineTooLongException
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52 {
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53 if (!in.markSupported()) {
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54 throw new IllegalArgumentException
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55 ("InputStream doesn't support marking: " + in.getClass());
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56 }
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57
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58 String line = null;
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59
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60 int cursor = 0;
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61 int len = buffer.length;
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62
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63 int count = 0;
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64 int c;
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65 loop:
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66 while ((c = in.read()) >= 0) {
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67 if (limit >= 0 && ++count > limit) {
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68 throw new LineTooLongException(limit);
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69 }
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70
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71 switch (c) {
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72 case '\r':
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73 in.mark(1);
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74 if (in.read() != '\n') {
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75 in.reset();
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76 }
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77 // fall through
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78 case '\n':
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79 if (line == null && cursor == 0) {
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80 return "";
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81 }
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82 break loop;
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83 default:
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84 if (cursor >= len) {
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85 if (line == null) {
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86 line = new String(buffer, "8859_1");
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87 }
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88 else {
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89 line = line.concat(new String(buffer, "8859_1"));
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90 }
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91 cursor = 0;
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92 }
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93 buffer[cursor++] = (byte)c;
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94 }
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95 }
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96
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97 if (cursor > 0) {
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98 if (line == null) {
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99 line = new String(buffer, 0, cursor, "8859_1");
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100 }
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101 else {
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102 line = line.concat(new String(buffer, 0, cursor, "8859_1"));
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103 }
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104 }
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105
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106 return line;
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107 }
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108
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109 /**
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110 * Reads a line from an HTTP InputStream, using the given buffer for
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111 * temporary storage.
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112 *
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113 * @param in stream to read from
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114 * @param buffer temporary buffer to use
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115 * @throws IllegalArgumentException if the given InputStream doesn't
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116 * support marking
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117 */
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118 public static String readLine(InputStream in, char[] buffer)
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119 throws IllegalArgumentException, IOException
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120 {
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121 return readLine(in, buffer, -1);
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122 }
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123
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124 /**
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125 * Reads a line from an HTTP InputStream, using the given buffer for
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126 * temporary storage.
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127 *
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128 * @param in stream to read from
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129 * @param buffer temporary buffer to use
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130 * @throws IllegalArgumentException if the given InputStream doesn't
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131 * support marking
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132 * @throws LineTooLongException when line is longer than the limit
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133 */
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134 public static String readLine(InputStream in, char[] buffer, int limit)
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135 throws IllegalArgumentException, IOException, LineTooLongException
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136 {
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137 if (!in.markSupported()) {
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138 throw new IllegalArgumentException
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139 ("InputStream doesn't support marking: " + in.getClass());
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140 }
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141
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142 String line = null;
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143
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144 int cursor = 0;
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145 int len = buffer.length;
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146
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147 int count = 0;
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148 int c;
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149 loop:
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150 while ((c = in.read()) >= 0) {
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151 if (limit >= 0 && ++count > limit) {
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152 throw new LineTooLongException(limit);
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153 }
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154
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155 switch (c) {
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156 case '\r':
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157 in.mark(1);
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158 if (in.read() != '\n') {
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159 in.reset();
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160 }
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161 // fall through
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162 case '\n':
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163 if (line == null && cursor == 0) {
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164 return "";
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165 }
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166 break loop;
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167 default:
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168 if (cursor >= len) {
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169 if (line == null) {
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170 line = new String(buffer);
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171 }
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172 else {
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173 line = line.concat(new String(buffer));
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Dan Creswell <dan.creswell@gmail.com>
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174 }
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175 cursor = 0;
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176 }
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177 buffer[cursor++] = (char)c;
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178 }
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Dan Creswell <dan.creswell@gmail.com>
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179 }
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Dan Creswell <dan.creswell@gmail.com>
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180
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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181 if (cursor > 0) {
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Dan Creswell <dan.creswell@gmail.com>
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182 if (line == null) {
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183 line = new String(buffer, 0, cursor);
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184 }
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185 else {
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186 line = line.concat(new String(buffer, 0, cursor));
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187 }
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188 }
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189
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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190 return line;
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191 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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192 }