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1 /* |
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2 * Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 * Sorted properties |
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17 * |
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18 */ |
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19 package com.nokia.tracecompiler.engine.project; |
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20 |
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21 import java.io.BufferedWriter; |
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22 import java.io.IOException; |
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23 import java.io.OutputStream; |
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24 import java.io.OutputStreamWriter; |
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25 import java.util.Collections; |
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26 import java.util.Enumeration; |
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27 import java.util.Properties; |
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28 import java.util.Vector; |
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29 |
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30 import com.nokia.tracecompiler.engine.TraceCompilerEngineGlobals; |
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31 |
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32 /** |
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33 * Sorted properties |
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34 * |
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35 */ |
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36 public final class SortedProperties extends Properties { |
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37 |
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38 /** |
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39 * UID |
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40 */ |
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41 private static final long serialVersionUID = 746540919659257261L; |
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42 |
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43 /* |
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44 * (non-Javadoc) |
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45 * |
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46 * @see java.util.Hashtable#keys() |
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47 */ |
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48 @Override |
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49 @SuppressWarnings("unchecked") |
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50 public synchronized Enumeration<Object> keys() { |
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51 Enumeration<Object> keysEnum = super.keys(); |
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52 Vector keyList = new Vector(); |
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53 while (keysEnum.hasMoreElements()) { |
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54 keyList.add(keysEnum.nextElement()); |
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55 } |
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56 Collections.sort(keyList); |
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57 return keyList.elements(); |
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58 } |
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59 |
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60 /* |
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61 * (non-Javadoc) |
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62 * |
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63 * @see java.util.Properties#store(java.io.OutputStream, java.lang.String) |
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64 */ |
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65 @Override |
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66 public synchronized void store(OutputStream out, String comments) |
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67 throws IOException { |
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68 BufferedWriter awriter; |
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69 awriter = new BufferedWriter(new OutputStreamWriter(out, "8859_1")); //$NON-NLS-1$ |
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70 String licence = TraceCompilerEngineGlobals.getDefaultLicence(false); |
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71 if (licence != null) { |
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72 out.write(licence.getBytes()); |
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73 } |
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74 if (comments != null) |
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75 writeln(awriter, "#" + comments); //$NON-NLS-1$ |
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76 |
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77 for (Enumeration<Object> e = keys(); e.hasMoreElements();) { |
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78 String key = (String) e.nextElement(); |
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79 String val = (String) get(key); |
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80 key = saveConvert(key, true); |
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81 |
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82 /* |
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83 * No need to escape embedded and trailing spaces for value, hence |
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84 * pass false to flag. |
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85 */ |
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86 val = saveConvert(val, false); |
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87 writeln(awriter, key + "=" + val); //$NON-NLS-1$ |
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88 } |
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89 awriter.flush(); |
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90 } |
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91 |
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92 /** |
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93 * Converts unicodes to encoded \uxxxx and escapes special characters |
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94 * with a preceding slash |
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95 * |
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96 * @param theString |
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97 * the string to be convert |
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98 * @param escapeSpace |
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99 * the escape space flag |
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100 * @return the coverted string |
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101 */ |
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102 private String saveConvert(String theString, boolean escapeSpace) { // CodForChk_Dis_ComplexFunc |
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103 int len = theString.length(); |
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104 int bufLen = len * 2; // CodForChk_Dis_Magic |
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105 if (bufLen < 0) { |
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106 bufLen = Integer.MAX_VALUE; |
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107 } |
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108 StringBuffer outBuffer = new StringBuffer(bufLen); |
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109 |
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110 for (int x = 0; x < len; x++) { |
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111 char aChar = theString.charAt(x); |
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112 // Handle common case first, selecting largest block that |
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113 // avoids the specials below |
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114 if ((aChar > 61) && (aChar < 127)) { // CodForChk_Dis_Magic |
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115 if (aChar == '\\') { |
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116 outBuffer.append('\\'); |
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117 outBuffer.append('\\'); |
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118 continue; |
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119 } |
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120 outBuffer.append(aChar); |
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121 continue; |
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122 } |
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123 switch (aChar) { |
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124 case ' ': |
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125 if (x == 0 || escapeSpace) |
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126 outBuffer.append('\\'); |
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127 outBuffer.append(' '); |
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128 break; |
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129 case '\t': |
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130 outBuffer.append('\\'); |
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131 outBuffer.append('t'); |
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132 break; |
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133 case '\n': |
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134 outBuffer.append('\\'); |
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135 outBuffer.append('n'); |
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136 break; |
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137 case '\r': |
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138 outBuffer.append('\\'); |
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139 outBuffer.append('r'); |
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140 break; |
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141 case '\f': |
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142 outBuffer.append('\\'); |
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143 outBuffer.append('f'); |
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144 break; |
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145 case '=': // Fall through |
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146 case ':': // Fall through |
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147 case '#': // Fall through |
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148 case '!': |
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149 outBuffer.append('\\'); |
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150 outBuffer.append(aChar); |
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151 break; |
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152 default: |
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153 if ((aChar < 0x0020) || (aChar > 0x007e)) { // CodForChk_Dis_Magic |
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154 outBuffer.append('\\'); |
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155 outBuffer.append('u'); |
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156 outBuffer.append(toHex((aChar >> 12) & 0xF)); // CodForChk_Dis_Magic |
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157 outBuffer.append(toHex((aChar >> 8) & 0xF)); // CodForChk_Dis_Magic |
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158 outBuffer.append(toHex((aChar >> 4) & 0xF)); // CodForChk_Dis_Magic |
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159 outBuffer.append(toHex(aChar & 0xF)); // CodForChk_Dis_Magic |
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160 } else { |
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161 outBuffer.append(aChar); |
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162 } |
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163 } |
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164 } |
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165 return outBuffer.toString(); |
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166 } |
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167 |
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168 /** |
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169 * Convert a nibble to a hex character |
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170 * |
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171 * @param nibble |
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172 * the nibble to convert |
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173 * @return the hex character |
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174 */ |
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175 private static char toHex(int nibble) { |
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176 return hexDigit[(nibble & 0xF)]; // CodForChk_Dis_Magic |
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177 } |
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178 |
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179 /** |
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180 * A table of hex digits |
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181 */ |
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182 private static final char[] hexDigit = { '0', '1', '2', '3', '4', '5', '6', |
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183 '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; |
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184 |
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185 /** |
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186 * Write line |
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187 * |
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188 * @param bw |
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189 * the buffered writer that used to write |
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190 * @param s |
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191 * the string what to write |
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192 * @throws IOException |
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193 */ |
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194 private static void writeln(BufferedWriter bw, String s) throws IOException { |
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195 bw.write(s); |
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196 bw.newLine(); |
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197 } |
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198 } |