1 | // |
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2 | // SimpleFileChannel.cpp |
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3 | // |
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4 | // $Id: //poco/1.3/Foundation/src/SimpleFileChannel.cpp#2 $ |
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5 | // |
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6 | // Library: Foundation |
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7 | // Package: Logging |
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8 | // Module: SimpleFileChannel |
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9 | // |
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10 | // Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH. |
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11 | // and Contributors. |
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12 | // |
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13 | // Permission is hereby granted, free of charge, to any person or organization |
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14 | // obtaining a copy of the software and accompanying documentation covered by |
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15 | // this license (the "Software") to use, reproduce, display, distribute, |
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16 | // execute, and transmit the Software, and to prepare derivative works of the |
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17 | // Software, and to permit third-parties to whom the Software is furnished to |
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18 | // do so, all subject to the following: |
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19 | // |
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20 | // The copyright notices in the Software and this entire statement, including |
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21 | // the above license grant, this restriction and the following disclaimer, |
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22 | // must be included in all copies of the Software, in whole or in part, and |
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23 | // all derivative works of the Software, unless such copies or derivative |
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24 | // works are solely in the form of machine-executable object code generated by |
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25 | // a source language processor. |
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26 | // |
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27 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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28 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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29 | // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
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30 | // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
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31 | // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
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32 | // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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33 | // DEALINGS IN THE SOFTWARE. |
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34 | // |
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35 | |
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36 | |
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37 | #include <Poco/SimpleFileChannel.h> |
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38 | #include <Poco/LogFile.h> |
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39 | #include <Poco/File.h> |
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40 | #include <Poco/Message.h> |
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41 | #include <Poco/Exception.h> |
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42 | #include <cctype> |
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43 | |
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44 | |
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45 | namespace Poco { |
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46 | |
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47 | |
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48 | const std::string SimpleFileChannel::PROP_PATH = "path"; |
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49 | const std::string SimpleFileChannel::PROP_SECONDARYPATH = "secondaryPath"; |
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50 | const std::string SimpleFileChannel::PROP_ROTATION = "rotation"; |
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51 | |
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52 | |
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53 | SimpleFileChannel::SimpleFileChannel(): |
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54 | _limit(0), |
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55 | _pFile(0) |
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56 | { |
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57 | } |
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58 | |
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59 | |
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60 | SimpleFileChannel::SimpleFileChannel(const std::string& path): |
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61 | _path(path), |
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62 | _secondaryPath(path + ".0"), |
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63 | _limit(0), |
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64 | _pFile(0) |
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65 | { |
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66 | } |
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67 | |
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68 | |
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69 | SimpleFileChannel::~SimpleFileChannel() |
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70 | { |
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71 | close(); |
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72 | } |
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73 | |
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74 | |
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75 | void SimpleFileChannel::open() |
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76 | { |
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77 | FastMutex::ScopedLock lock(_mutex); |
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78 | |
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79 | if (!_pFile) |
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80 | { |
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81 | File primary(_path); |
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82 | File secondary(_secondaryPath); |
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83 | Timestamp pt = primary.exists() ? primary.getLastModified() : 0; |
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84 | Timestamp st = secondary.exists() ? secondary.getLastModified() : 0; |
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85 | std::string path; |
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86 | if (pt >= st) |
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87 | path = _path; |
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88 | else |
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89 | path = _secondaryPath; |
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90 | _pFile = new LogFile(path); |
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91 | } |
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92 | } |
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93 | |
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94 | |
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95 | void SimpleFileChannel::close() |
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96 | { |
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97 | FastMutex::ScopedLock lock(_mutex); |
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98 | |
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99 | delete _pFile; |
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100 | _pFile = 0; |
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101 | } |
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102 | |
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103 | |
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104 | void SimpleFileChannel::log(const Message& msg) |
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105 | { |
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106 | open(); |
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107 | |
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108 | FastMutex::ScopedLock lock(_mutex); |
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109 | |
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110 | if (_limit > 0 && _pFile->size() >= _limit) |
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111 | { |
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112 | rotate(); |
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113 | } |
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114 | _pFile->write(msg.getText()); |
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115 | } |
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116 | |
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117 | |
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118 | void SimpleFileChannel::setProperty(const std::string& name, const std::string& value) |
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119 | { |
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120 | FastMutex::ScopedLock lock(_mutex); |
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121 | |
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122 | if (name == PROP_PATH) |
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123 | { |
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124 | _path = value; |
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125 | if (_secondaryPath.empty()) |
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126 | _secondaryPath = _path + ".0"; |
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127 | } |
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128 | else if (name == PROP_SECONDARYPATH) |
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129 | _secondaryPath = value; |
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130 | else if (name == PROP_ROTATION) |
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131 | setRotation(value); |
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132 | else |
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133 | Channel::setProperty(name, value); |
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134 | } |
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135 | |
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136 | |
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137 | std::string SimpleFileChannel::getProperty(const std::string& name) const |
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138 | { |
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139 | if (name == PROP_PATH) |
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140 | return _path; |
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141 | else if (name == PROP_SECONDARYPATH) |
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142 | return _secondaryPath; |
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143 | else if (name == PROP_ROTATION) |
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144 | return _rotation; |
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145 | else |
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146 | return Channel::getProperty(name); |
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147 | } |
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148 | |
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149 | |
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150 | Timestamp SimpleFileChannel::creationDate() const |
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151 | { |
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152 | if (_pFile) |
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153 | return _pFile->creationDate(); |
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154 | else |
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155 | return 0; |
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156 | } |
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157 | |
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158 | |
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159 | UInt64 SimpleFileChannel::size() const |
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160 | { |
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161 | if (_pFile) |
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162 | return _pFile->size(); |
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163 | else |
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164 | return 0; |
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165 | } |
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166 | |
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167 | |
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168 | const std::string& SimpleFileChannel::path() const |
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169 | { |
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170 | return _path; |
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171 | } |
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172 | |
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173 | |
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174 | const std::string& SimpleFileChannel::secondaryPath() const |
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175 | { |
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176 | return _secondaryPath; |
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177 | } |
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178 | |
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179 | |
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180 | void SimpleFileChannel::setRotation(const std::string& rotation) |
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181 | { |
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182 | std::string::const_iterator it = rotation.begin(); |
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183 | std::string::const_iterator end = rotation.end(); |
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184 | UInt64 n = 0; |
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185 | while (it != end && std::isspace(*it)) ++it; |
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186 | while (it != end && std::isdigit(*it)) { n *= 10; n += *it++ - '0'; } |
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187 | while (it != end && std::isspace(*it)) ++it; |
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188 | std::string unit; |
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189 | while (it != end && std::isalpha(*it)) unit += *it++; |
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190 | |
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191 | if (unit == "K") |
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192 | _limit = n*1024; |
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193 | else if (unit == "M") |
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194 | _limit = n*1024*1024; |
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195 | else if (unit.empty()) |
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196 | _limit = n; |
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197 | else if (unit == "never") |
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198 | _limit = 0; |
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199 | else |
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200 | throw InvalidArgumentException("rotation", rotation); |
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201 | _rotation = rotation; |
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202 | } |
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203 | |
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204 | |
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205 | void SimpleFileChannel::rotate() |
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206 | { |
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207 | std::string newPath; |
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208 | if (_pFile->path() == _path) |
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209 | newPath = _secondaryPath; |
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210 | else |
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211 | newPath = _path; |
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212 | File f(newPath); |
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213 | if (f.exists()) |
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214 | { |
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215 | try |
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216 | { |
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217 | f.remove(); |
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218 | } |
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219 | catch (...) |
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220 | { |
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221 | } |
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222 | } |
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223 | delete _pFile; |
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224 | _pFile = new LogFile(newPath); |
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225 | } |
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226 | |
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227 | |
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228 | } // namespace Poco |
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