/usr/share/pgfouine/include/LogBlock.class.php is in pgfouine 1.2-3.
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/*
* This file is part of pgFouine.
*
* pgFouine - a PostgreSQL log analyzer
* Copyright (c) 2005-2008 Guillaume Smet
*
* pgFouine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* pgFouine is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with pgFouine; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* A log block is a set of lines we identified as belonging to the
* same PostgreSQL log object (a statement, an error...).
*
* When a log block is complete, we can parse it to build a log object.
* The completion of a node is decided by the line objects we add in this
* block.
*
* Even if we have a command number in the log block, you can have lines with different
* command numbers in the same log block. PostgreSQL does not log all the lines associated
* with a log object with the same command number (for example, when you use log_statement
* and log_duration, the statement text and the duration are logged with different command
* numbers).
*/
class LogBlock {
var $logStream;
var $commandNumber;
var $lines = array();
var $complete = false;
var $lastLineNumber = 0;
function LogBlock(& $logStream, $commandNumber, & $line) {
$this->logStream =& $logStream;
$this->commandNumber = $commandNumber;
$this->addLine($line);
}
/**
* returns the command number currently associated with the log block
*
* @return int command number
*/
function getCommandNumber() {
return $this->commandNumber;
}
/**
* returns the line number associated with the last line added to the block
*
* @return int line number
*/
function getLastLineNumber() {
return $this->lastLineNumber;
}
/**
* returns an array containing all the log lines added to the block
*
* @return array lines
*/
function & getLines() {
return $this->lines;
}
/**
* returns the number of lines added
*
* @return int count
*/
function getLineCount() {
return count($this->lines);
}
/**
* returns the first line added to the block or false if the block is empty
*
* @return mixed first log line
*/
function & getFirstLine() {
if(isset($this->lines[0])) {
$line =& $this->lines[0];
} else {
$line = false;
}
return $line;
}
/**
* adds a log line to our block. If the line is a candidate to complete the log
* block, it declares the log block as complete.
*
* @param object $line the line to add
*/
function addLine(& $line) {
$this->complete = $this->complete || $line->complete();
$this->lastLineNumber = $line->getLineNumber();
$this->lines[] =& $line;
}
/**
* returns true if the log block is declared complete
*
* @return boolean true if complete
*/
function isComplete() {
return $this->complete;
}
/**
* closes the log block and builds a log object from the lines previously added
* to the block
*
* @return object log object
*/
function & close() {
$count = count($this->lines);
$logObject =& $this->lines[0]->getLogObject($this->logStream);
if($logObject && !$logObject->isIgnored()) {
for($i = 1; $i < $count; $i++) {
$this->lines[$i]->appendTo($logObject);
}
}
if(is_a($logObject, 'UselessLogObject')) {
unset($logObject);
$logObject = false;
}
return $logObject;
}
}
?>
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