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<?php
/*
* This file is part of the DebugBar package.
*
* (c) 2013 Maxime Bouroumeau-Fuseau
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace DebugBar\DataCollector;
use ArrayAccess;
use DebugBar\DebugBarException;
/**
* Aggregates data from multiple collectors
*
* <code>
* $aggcollector = new AggregateCollector('foobar');
* $aggcollector->addCollector(new MessagesCollector('msg1'));
* $aggcollector->addCollector(new MessagesCollector('msg2'));
* $aggcollector['msg1']->addMessage('hello world');
* </code>
*/
class AggregatedCollector implements DataCollectorInterface, ArrayAccess
{
protected $name;
protected $mergeProperty;
protected $sort;
protected $collectors = array();
/**
* @param string $name
* @param string $mergeProperty
* @param boolean $sort
*/
public function __construct($name, $mergeProperty = null, $sort = false)
{
$this->name = $name;
$this->mergeProperty = $mergeProperty;
$this->sort = $sort;
}
/**
* @param DataCollectorInterface $collector
*/
public function addCollector(DataCollectorInterface $collector) : void
{
$this->collectors[$collector->getName()] = $collector;
}
/**
* @return array
*/
public function getCollectors() : array
{
return $this->collectors;
}
/**
* Merge data from one of the key/value pair of the collected data
*
* @param string $property
*/
public function setMergeProperty($property) : void
{
$this->mergeProperty = $property;
}
/**
* @return string
*/
public function getMergeProperty() : string
{
return $this->mergeProperty;
}
/**
* Sorts the collected data
*
* If true, sorts using sort()
* If it is a string, sorts the data using the value from a key/value pair of the array
*
* @param bool|string $sort
*/
public function setSort($sort) : void
{
$this->sort = $sort;
}
/**
* @return bool|string
*/
public function getSort()
{
return $this->sort;
}
/**
* @return array
*/
public function collect() : array
{
$aggregate = array();
foreach ($this->collectors as $collector) {
$data = $collector->collect();
if ($this->mergeProperty !== null) {
$data = $data[$this->mergeProperty];
}
$aggregate = array_merge($aggregate, $data);
}
return $this->sort($aggregate);
}
/**
* Sorts the collected data
*
* @param array $data
* @return array
*/
protected function sort($data) : array
{
if (is_string($this->sort)) {
$p = $this->sort;
usort($data, function ($a, $b) use ($p) {
if ($a[$p] == $b[$p]) {
return 0;
}
return $a[$p] < $b[$p] ? -1 : 1;
});
} elseif ($this->sort === true) {
sort($data);
}
return $data;
}
/**
* @return string
*/
public function getName() : string
{
return $this->name;
}
// --------------------------------------------
// ArrayAccess implementation
/**
* @param mixed $key
* @param mixed $value
* @throws DebugBarException
*/
public function offsetSet($key, $value): void
{
throw new DebugBarException("AggregatedCollector[] is read-only");
}
/**
* @param mixed $key
* @return mixed
*/
#[\ReturnTypeWillChange]
public function offsetGet($key)
{
return $this->collectors[$key];
}
/**
* @param mixed $key
* @return bool
*/
public function offsetExists($key): bool
{
return isset($this->collectors[$key]);
}
/**
* @param mixed $key
* @throws DebugBarException
*/
public function offsetUnset($key): void
{
throw new DebugBarException("AggregatedCollector[] is read-only");
}
}
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