[80] | 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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