1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 | <?php // // Open Web Analytics - An Open Source Web Analytics Framework // // Copyright 2006 Peter Adams. All rights reserved. // // Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // // $Id$ // require_once(OWA_BASE_CLASS_DIR.'eventQueue.php'); require_once(OWA_BASE_CLASS_DIR.'event.php'); require_once(OWA_PEARLOG_DIR . DIRECTORY_SEPARATOR . 'Log.php'); require_once(OWA_PEARLOG_DIR . DIRECTORY_SEPARATOR . 'Log/file.php'); /** * File based Event Queue Implementation * * @author Peter Adams <peter@openwebanalytics.com> * @copyright Copyright © 2006 Peter Adams <peter@openwebanalytics.com> * @license http://www.gnu.org/copyleft/gpl.html GPL v2.0 * @category owa * @package owa * @version $Revision$ * @since owa 1.0.0 */ class owa_fileEventQueue extends owa_eventQueue { var $queue; var $error_logger; var $queue_dir; var $event_file; function __construct($queue_dir = '') { // set event file if (!$queue_dir) { $this->queue_dir = owa_coreAPI::getSetting('base', 'async_log_dir'); } $this->event_file = $this->queue_dir.'events.txt'; $this->lock_file = $this->queue_dir.'lock.txt'; } function makeQueue() { //make file queue $conf = array('mode' => 0600, 'timeFormat' => '%X %x'); //$this->queue = &Log::singleton('async_queue', $this->event_file, 'async_event_queue', $conf); $this->queue = Log::singleton('file', $this->event_file, 'async_event_queue', $conf); $this->queue->_lineFormat = '%1$s|*|%2$s|*|[%3$s]|*|%4$s'; // not sure why this is needed but it is. $this->queue->_filename = $this->event_file; } function addToQueue($event) { if (!$this->queue) { $this->makeQueue(); } $this->queue->log(urlencode(serialize($event))); } function processQueue($event_file = '') { if ($event_file) { $this->event_file = $this->queue_dir.$event_file; } if ( file_exists( $this->event_file ) ) { $event_log_rotate_size = owa_coreAPI::getSetting( 'base', 'async_log_rotate_size' ); if ( filesize( $this->event_file ) > $event_log_rotate_size ) { owa_coreAPI::notice(sprintf('Starting Async Event Processing Run for: %s', $this->event_file)); //check for lock file if (!$this->isLocked()) { return $this->process_event_log($this->event_file); } else { owa_coreAPI::notice(sprintf('Previous Process (%d) still active. Terminating Run.', $former_pid)); } } else { owa_coreAPI::debug("Event file is not large enough to process yet. Size is only: ".filesize($this->event_file)); } } else { owa_coreAPI::debug("No event file found at: ".$this->event_file); } } function isLocked() { if (file_exists($this->lock_file)) { //read contents of lock file for last PID $lock = fopen($this->lock_file, "r") or die ("Could not read lock file"); if ($lock) { while (!feof($lock)) { $former_pid = fgets($lock, 4096); } fclose($lock); } //check to see if former process is still running $ps_check = $this->isRunning($former_pid); //if the process is still running, exit. if ($ps_check) { owa_coreAPI::notice(sprintf('Previous Process (%d) still active. Terminating Run.', $former_pid)); return true; //if it's not running remove the lock file and proceead. } else { owa_coreAPI::debug(sprintf('Process %d is no longer running. Deleting old Lock file. \n', $former_pid)); unlink ($this->lock_file); return false; } } else { return false; } } function isRunning($pid) { $process_state = ''; exec("ps $pid", $process_state); //print $pid; print_r($process_state); if (count($process_state) >= 2) { return true; } else { return false; } } function process_event_log($file) { // check to see if event log file exisits if (!file_exists($file)) { owa_coreAPI::debug("Event file does not exist at $file"); return false; } //create lock file $this->create_lock_file(); // get event dispatcher $dispatch = owa_coreAPI::getEventDispatch(); // Create a new log file name $new_file_name = $this->queue_dir.time().".".getmypid(); $new_file = $new_file_name.".processing"; // Rename current log file rename ($file, $new_file ) or die ("Could not rename file"); owa_coreAPI::debug('renamed event file.'); // open file for reading $handle = @fopen($new_file, "r"); if ($handle) { while (!feof($handle)) { // Read row $buffer = fgets($handle, 14096); // big enough? // Parse the row $event = $this->parse_log_row($buffer); // Log event to the event queue if (!empty($event)) { //print_r($event); // debug owa_coreAPI::debug(sprintf('Processing: %s (%s)', '', $event->guid)); // send event object to event queue $ret = $dispatch->notify($event); // is the dispatch was not successful then add the event back into the queue. if ( $ret != OWA_EHS_EVENT_HANDLED ) { $dispatch->asyncNotify($event); } } else { owa_coreAPI::debug("No event found in log row. Must be end of file."); } } //Close file fclose($handle); // rename file to mark it as processed $processed_file_name = $new_file_name.".processed"; rename ($new_file, $processed_file_name) or die ("Could not rename file"); owa_coreAPI::debug(sprintf('Processing Complete. Renaming File to %s', $processed_file_name )); //Delete processed file unlink($processed_file_name); owa_coreAPI::debug(sprintf('Deleting File %s', $processed_file_name)); //Delete Lock file unlink($this->lock_file); return true; } else { //could not open file for processing owa_coreAPI::error(sprintf('Could not open file %s. Terminating Run.', $new_file)); } } function makeErrorLogFile() { $conf = array('mode' => 640, 'timeFormat' => '%X %x'); $this->error_logger = &Log::singleton('file', owa_coreAPI::getSetting('async_error_log_file'), 'ident', $conf); $this->error_logger->_lineFormat = '[%3$s]'; $this->error_logger->_filename = owa_coreAPI::getSetting('async_error_log_file'); } function logError($event) { } /** * Parse row from event log file * * @param string $row * @return array */ function parse_log_row($row) { if ($row) { $raw_event = explode("|*|", $row); //print_r($raw_event); //$row_array = array( 'timestamp' => $raw_event[0], 'event_type' => $raw_event[3], 'event_obj' => $raw_event[4]); $row_array = array( 'timestamp' => $raw_event[0], 'event_obj' => $raw_event[3]); //print_r($row_array); $event = unserialize(urldecode($row_array['event_obj'])); //print_r($event); return $event; } } function create_lock_file() { $lock_file = fopen($this->lock_file, "w+") or die ("Could not create lock file at: ".$this->lock_file); // Write PID to lock file if (fwrite($lock_file, getmypid()) === FALSE) { owa_coreAPI::debug('Cannot write to lock file. Terminating Run.'); exit; } return; } } ?> |