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1 /* |
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2 * Copyright (c) 2005-2009 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 */ |
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17 |
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18 |
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19 |
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20 |
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21 #include "stdafx.h" |
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22 #include "statscriptdecoder.h" |
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23 |
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24 //---------------------------------------------------------------------------- |
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25 // Contructor |
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26 CSTATScriptCommand::CSTATScriptCommand() |
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27 : cCommandID(0), pCommand(NULL), ulLength(0) |
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28 { |
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29 } |
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30 |
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31 //---------------------------------------------------------------------------- |
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32 // Destructor |
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33 CSTATScriptCommand::~CSTATScriptCommand() |
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34 { |
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35 Reset(); |
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36 } |
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37 |
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38 |
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39 //---------------------------------------------------------------------------- |
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40 // Set command data |
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41 bool CSTATScriptCommand::SetData(const char *pData, const unsigned long theLength) |
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42 { |
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43 Reset(); |
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44 |
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45 if (pData && theLength) |
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46 { |
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47 pCommand = new char[theLength + 1]; |
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48 if (!pCommand) |
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49 return false; |
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50 |
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51 memcpy(pCommand, pData, theLength); |
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52 *(pCommand + theLength) = (char)0; |
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53 ulLength = theLength; |
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54 } |
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55 |
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56 return true; |
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57 } |
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58 |
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59 |
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60 //---------------------------------------------------------------------------- |
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61 // Destructor |
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62 void CSTATScriptCommand::Reset() |
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63 { |
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64 if (pCommand) |
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65 { |
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66 delete [] pCommand; |
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67 pCommand = NULL; |
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68 } |
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69 |
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70 ulLength = 0; |
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71 } |
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72 |
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73 |
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74 |
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75 //////////////////////////////////////////////////////////////////////////////////////// |
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76 // Script Decoder class |
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77 //////////////////////////////////////////////////////////////////////////////////////// |
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78 |
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79 //---------------------------------------------------------------------------- |
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80 // Constructor |
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81 CSTATScriptDecoder::CSTATScriptDecoder(CSTATLogFile *theLog) |
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82 : lFileLength(0), iCounter(0), |
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83 lpBuffer(NULL) |
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84 { |
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85 pLog = theLog; |
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86 } |
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87 |
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88 |
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89 //---------------------------------------------------------------------------- |
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90 // Destructor |
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91 CSTATScriptDecoder::~CSTATScriptDecoder() |
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92 { |
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93 Release(); |
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94 } |
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95 |
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96 |
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97 //---------------------------------------------------------------------------- |
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98 // Read the script into memory |
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99 int |
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100 CSTATScriptDecoder::Initialise(const CString& file, bool bIsFile) |
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101 { |
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102 lpBuffer = NULL; |
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103 int ret = OPEN_SCRIPT_FILE_COMPLETE_FAILURE; |
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104 |
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105 // read the commands into memory |
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106 if (bIsFile) |
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107 { |
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108 CFile script_file; |
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109 if (script_file.Open(file, CFile::modeRead)) |
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110 { |
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111 ret = ReadFileIntoMemory(script_file); |
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112 script_file.Abort(); |
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113 } |
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114 } |
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115 else |
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116 ret = ReadDataIntoMemory(file); |
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117 |
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118 // make sure we have valid start/end points in the script |
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119 if (ret == ITS_OK) |
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120 ret = ValidateScript(); |
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121 |
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122 if (ret == ITS_OK) |
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123 { |
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124 pLog->WriteTimeToLog(); |
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125 |
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126 if(bIsFile) |
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127 { |
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128 CString cBuffer = _T("Script file is : "); |
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129 cBuffer += file; |
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130 pLog->Write(cBuffer); |
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131 } |
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132 else |
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133 pLog->Write(_T("Interpreting command script...")); |
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134 |
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135 ret = ITS_OK; |
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136 } |
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137 else |
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138 Release(); |
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139 |
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140 return ret; |
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141 } |
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142 |
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143 |
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144 //---------------------------------------------------------------------------- |
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145 // Release resources |
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146 void CSTATScriptDecoder::Release() |
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147 { |
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148 LastCommand.Reset(); |
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149 |
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150 // release the script |
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151 if (lpBuffer && lFileLength) |
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152 { |
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153 delete [] lpBuffer; |
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154 lpBuffer = NULL; |
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155 lFileLength = iCounter = 0; |
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156 } |
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157 } |
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158 |
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159 |
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160 //---------------------------------------------------------------------------- |
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161 // get the contents of a single command |
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162 int |
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163 CSTATScriptDecoder::GetNextCommand(CSTATScriptCommand **ppCommand) |
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164 { |
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165 // get to the start of the command |
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166 while (lpBuffer[iCounter] != '<') |
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167 { |
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168 // comment |
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169 if (lpBuffer[iCounter] == '/' && lpBuffer[iCounter + 1] == '*') |
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170 { |
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171 if (ExtractComment()) |
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172 { |
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173 *ppCommand = &LastCommand; |
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174 return LastCommand.cCommandID; |
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175 } |
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176 |
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177 return 0; |
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178 } |
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179 |
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180 if (!IncrementCounter()) |
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181 return 0; |
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182 } |
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183 |
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184 // step over the '<' |
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185 if (!IncrementCounter()) |
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186 return 0; |
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187 |
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188 // save the command ID |
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189 LastCommand.cCommandID = (char)toupper(lpBuffer[iCounter]); |
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190 if (!IncrementCounter()) |
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191 return 0; |
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192 |
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193 // need to step over 'image' with '#image' command |
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194 if (LastCommand.cCommandID == '#') |
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195 { |
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196 while (lpBuffer[iCounter] != ' ') |
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197 if (!IncrementCounter()) |
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198 return 0; |
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199 |
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200 // step over the space |
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201 if (!IncrementCounter()) |
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202 return 0; |
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203 } |
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204 |
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205 int iBeginning = iCounter; |
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206 |
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207 // extract the command |
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208 while (lpBuffer[iCounter] != '>') |
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209 if (!IncrementCounter()) |
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210 return 0; |
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211 |
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212 // save our command |
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213 LastCommand.SetData(lpBuffer + iBeginning, iCounter - iBeginning); |
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214 |
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215 // step over the '>' |
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216 IncrementCounter(); |
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217 |
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218 // set pointer to the command |
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219 *ppCommand = &LastCommand; |
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220 return LastCommand.cCommandID; |
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221 } |
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222 |
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223 |
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224 //---------------------------------------------------------------------------- |
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225 // PRIVATE METHODS |
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226 //---------------------------------------------------------------------------- |
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227 |
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228 //---------------------------------------------------------------------------- |
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229 //reads string data into memory so that it can be decoded |
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230 int CSTATScriptDecoder::ReadDataIntoMemory(const CString& commands) |
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231 { |
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232 // Convert CString to char * |
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233 lFileLength = commands.GetLength(); //set length |
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234 lpBuffer = new char [lFileLength + 1]; //allocate temporary buffer |
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235 if (lpBuffer) |
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236 { |
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237 if (!pLog->ToAnsi(commands, |
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238 lpBuffer, |
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239 lFileLength)) |
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240 { |
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241 return INTERPRET_COMMANDS_FAILURE; //unable to convert to 8-bit |
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242 } |
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243 |
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244 lpBuffer[lFileLength] = 0; |
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245 return ITS_OK; |
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246 } |
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247 |
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248 return E_OUTOFMEM; |
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249 } |
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250 //---------------------------------------------------------------------------- |
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251 //reads file data into memory so that it can be decoded |
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252 int CSTATScriptDecoder::ReadFileIntoMemory(CFile& scriptdata) |
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253 { |
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254 try |
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255 { |
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256 lFileLength = scriptdata.GetLength(); //file length |
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257 lpBuffer = new char [lFileLength + 1]; //allocate temporary buffer |
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258 if (lpBuffer) |
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259 { |
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260 scriptdata.Read(lpBuffer, lFileLength); //read in from the file and store in the buffer |
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261 lpBuffer[lFileLength] = 0; |
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262 return ITS_OK; |
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263 } |
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264 } |
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265 catch(CFileException *e) |
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266 { |
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267 e -> Delete(); |
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268 return OPEN_SCRIPT_FILE_COMPLETE_FAILURE; |
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269 } |
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270 |
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271 return E_OUTOFMEM; |
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272 } |
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273 |
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274 |
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275 //---------------------------------------------------------------------------- |
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276 // checks that start and end codes exist in the script |
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277 // on success, iCounter will be left ready for the first STAT command |
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278 int CSTATScriptDecoder::ValidateScript() |
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279 { |
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280 CSTATScriptCommand *pCommand; |
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281 bool bFound = false; |
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282 |
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283 // reset |
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284 iCounter = 0; |
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285 |
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286 // look for end |
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287 while (GetNextCommand(&pCommand)) |
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288 { |
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289 if (pCommand->cCommandID == 'E') |
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290 { |
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291 bFound = true; |
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292 break; |
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293 } |
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294 } |
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295 |
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296 if (bFound) |
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297 { |
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298 // reset |
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299 iCounter = 0; |
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300 bFound = false; |
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301 |
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302 // look for begin |
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303 while (GetNextCommand(&pCommand)) |
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304 { |
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305 if (pCommand->cCommandID == 'B') |
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306 { |
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307 bFound = true; |
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308 iCounter -= 3; // step back so this is the first command sent |
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309 break; |
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310 } |
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311 } |
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312 } |
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313 |
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314 if (!bFound) |
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315 return BEGIN_COMMAND_FAILURE; |
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316 |
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317 return ITS_OK; |
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318 } |
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319 |
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320 |
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321 //---------------------------------------------------------------------------- |
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322 // get a comment |
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323 int |
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324 CSTATScriptDecoder::ExtractComment() |
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325 { |
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326 int iBeginning = iCounter; |
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327 |
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328 LastCommand.cCommandID = lpBuffer[iCounter]; |
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329 iCounter += 2; |
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330 |
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331 while (((iCounter + 1) < lFileLength) && |
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332 !(lpBuffer[iCounter] == '*' && lpBuffer[iCounter + 1] == '/') ) |
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333 { |
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334 if (!IncrementCounter()) |
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335 return 0; |
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336 } |
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337 |
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338 // get the last bit of the comment '*/' |
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339 if ((iCounter + 1) < lFileLength) |
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340 iCounter += 2; |
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341 |
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342 // save our comment |
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343 LastCommand.SetData(lpBuffer + iBeginning, iCounter - iBeginning); |
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344 return LastCommand.cCommandID; |
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345 } |
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346 |
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347 |
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348 //---------------------------------------------------------------------------- |
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349 // increment counter but make sure we don't go over the end of the script |
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350 bool CSTATScriptDecoder::IncrementCounter(void) |
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351 { |
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352 return (++iCounter < lFileLength); |
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353 } |