Class yii\debug\LogTarget

                public function __construct($module, $config = [])
{
    parent::__construct($config);
    $this->module = $module;
    $this->tag = uniqid();
}

            

                public function collect($messages, $final)
{
    $this->messages = array_merge($this->messages, $messages);
    if ($final) {
        $this->export();
    }
}

            

                protected function collectSummary()
{
    if (Yii::$app === null) {
        return [];
    }
    $request = Yii::$app->getRequest();
    $response = Yii::$app->getResponse();
    $summary = [
        'tag' => $this->tag,
        'url' => $request instanceof yii\console\Request ? "php yii " . implode(' ', $request->getParams()): $request->getAbsoluteUrl(),
        'ajax' => $request instanceof yii\console\Request ? 0 : (int) $request->getIsAjax(),
        'method' => $request instanceof yii\console\Request ? 'COMMAND' : $request->getMethod(),
        'ip' => $request instanceof yii\console\Request ? exec('whoami') : $request->getUserIP(),
        'time' => $_SERVER['REQUEST_TIME_FLOAT'],
        'statusCode' => $response instanceof yii\console\Response ? $response->exitStatus : $response->statusCode,
        'sqlCount' => $this->getSqlTotalCount(),
        'excessiveCallersCount' => $this->getExcessiveDbCallersCount(),
    ];
    if (isset($this->module->panels['mail'])) {
        $mailFiles = $this->module->panels['mail']->getMessagesFileName();
        $summary['mailCount'] = count($mailFiles);
        $summary['mailFiles'] = $mailFiles;
    }
    return $summary;
}

            

                public function export()
{
    $path = $this->module->dataPath;
    FileHelper::createDirectory($path, $this->module->dirMode);
    $summary = $this->collectSummary();
    $dataFile = "$path/{$this->tag}.data";
    $data = [];
    $exceptions = [];
    foreach ($this->module->panels as $id => $panel) {
        try {
            $panelData = $panel->save();
            if ($id === 'profiling') {
                $summary['peakMemory'] = $panelData['memory'];
                $summary['processingTime'] = $panelData['time'];
            }
            $data[$id] = serialize($panelData);
        } catch (\Exception $exception) {
            $exceptions[$id] = new FlattenException($exception);
        }
    }
    $data['summary'] = $summary;
    $data['exceptions'] = $exceptions;
    file_put_contents($dataFile, serialize($data));
    if ($this->module->fileMode !== null) {
        @chmod($dataFile, $this->module->fileMode);
    }
    $indexFile = "$path/index.data";
    $this->updateIndexFile($indexFile, $summary);
}

            

                protected function gc(&$manifest)
{
    if (count($manifest) > $this->module->historySize + 10) {
        $n = count($manifest) - $this->module->historySize;
        foreach (array_keys($manifest) as $tag) {
            $file = $this->module->dataPath . "/$tag.data";
            @unlink($file);
            if (isset($manifest[$tag]['mailFiles'])) {
                foreach ($manifest[$tag]['mailFiles'] as $mailFile) {
                    @unlink(Yii::getAlias($this->module->panels['mail']->mailPath) . "/$mailFile");
                }
            }
            unset($manifest[$tag]);
            if (--$n <= 0) {
                break;
            }
        }
        $this->removeStaleDataFiles($manifest);
    }
}

            

                protected function getExcessiveDbCallersCount()
{
    if (!isset($this->module->panels['db'])) {
        return 0;
    }
    /** @var DbPanel $dbPanel */
    $dbPanel = $this->module->panels['db'];
    return $dbPanel->getExcessiveCallersCount();
}

            

                protected function getSqlTotalCount()
{
    if (!isset($this->module->panels['db'])) {
        return 0;
    }
    $profileLogs = $this->module->panels['db']->getProfileLogs();
    # / 2 because messages are in couple (begin/end)
    return count($profileLogs) / 2;
}

            

                public function loadManifest()
{
    $indexFile = $this->module->dataPath . '/index.data';
    $content = '';
    $fp = @fopen($indexFile, 'r');
    if ($fp !== false) {
        @flock($fp, LOCK_SH);
        $content = fread($fp, filesize($indexFile));
        @flock($fp, LOCK_UN);
        fclose($fp);
    }
    if ($content !== '') {
        return array_reverse(unserialize($content), true);
    }
    return [];
}

            

                public function loadTagToPanels($tag)
{
    $dataFile = $this->module->dataPath . "/$tag.data";
    $data = unserialize(file_get_contents($dataFile));
    $exceptions = $data['exceptions'];
    foreach ($this->module->panels as $id => $panel) {
        if (isset($data[$id])) {
            $panel->tag = $tag;
            $panel->load(unserialize($data[$id]));
        } else {
            unset($this->module->panels[$id]);
        }
        if (isset($exceptions[$id])) {
            $panel->setError($exceptions[$id]);
        }
    }
    return $data;
}

            

                protected function removeStaleDataFiles($manifest)
{
    $storageTags = array_map(
        function ($file) {
            return pathinfo($file, PATHINFO_FILENAME);
        },
        FileHelper::findFiles($this->module->dataPath, ['except' => ['index.data']])
    );
    $staledTags = array_diff($storageTags, array_keys($manifest));
    foreach ($staledTags as $tag) {
        @unlink($this->module->dataPath . "/$tag.data");
    }
}