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<?php
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Monolog\Formatter;
/**
* Encodes whatever record data is passed to it as json
*
* This can be useful to log to databases or remote APIs
*
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class JsonFormatter implements FormatterInterface
{
const BATCH_MODE_JSON = 1;
const BATCH_MODE_NEWLINES = 2;
protected $batchMode;
protected $appendNewline;
/**
* @param int $batchMode
*/
public function __construct($batchMode = self::BATCH_MODE_JSON, $appendNewline = true)
{
$this->batchMode = $batchMode;
$this->appendNewline = $appendNewline;
}
/**
* The batch mode option configures the formatting style for
* multiple records. By default, multiple records will be
* formatted as a JSON-encoded array. However, for
* compatibility with some API endpoints, alternive styles
* are available.
*
* @return int
*/
public function getBatchMode()
{
return $this->batchMode;
}
/**
* True if newlines are appended to every formatted record
*
* @return bool
*/
public function isAppendingNewlines()
{
return $this->appendNewline;
}
/**
* {@inheritdoc}
*/
public function format(array $record)
{
return json_encode($record) . ($this->appendNewline ? "\n" : '');
}
/**
* {@inheritdoc}
*/
public function formatBatch(array $records)
{
switch ($this->batchMode) {
case static::BATCH_MODE_NEWLINES:
return $this->formatBatchNewlines($records);
case static::BATCH_MODE_JSON:
default:
return $this->formatBatchJson($records);
}
}
/**
* Return a JSON-encoded array of records.
*
* @param array $records
* @return string
*/
protected function formatBatchJson(array $records)
{
return json_encode($records);
}
/**
* Use new lines to separate records instead of a
* JSON-encoded array.
*
* @param array $records
* @return string
*/
protected function formatBatchNewlines(array $records)
{
$instance = $this;
$oldNewline = $this->appendNewline;
$this->appendNewline = false;
array_walk($records, function (&$value, $key) use ($instance) {
$value = $instance->format($value);
});
$this->appendNewline = $oldNewline;
return implode("\n", $records);
}
}
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