124 lines
4.5 KiB
PHP
124 lines
4.5 KiB
PHP
<?php
|
|
namespace GuzzleHttp;
|
|
|
|
use GuzzleHttp\Promise\PromisorInterface;
|
|
use Psr\Http\Message\RequestInterface;
|
|
use GuzzleHttp\Promise\EachPromise;
|
|
|
|
/**
|
|
* Sends and iterator of requests concurrently using a capped pool size.
|
|
*
|
|
* The pool will read from an iterator until it is cancelled or until the
|
|
* iterator is consumed. When a request is yielded, the request is sent after
|
|
* applying the "request_options" request options (if provided in the ctor).
|
|
*
|
|
* When a function is yielded by the iterator, the function is provided the
|
|
* "request_options" array that should be merged on top of any existing
|
|
* options, and the function MUST then return a wait-able promise.
|
|
*/
|
|
class Pool implements PromisorInterface
|
|
{
|
|
/** @var EachPromise */
|
|
private $each;
|
|
|
|
/**
|
|
* @param ClientInterface $client Client used to send the requests.
|
|
* @param array|\Iterator $requests Requests or functions that return
|
|
* requests to send concurrently.
|
|
* @param array $config Associative array of options
|
|
* - concurrency: (int) Maximum number of requests to send concurrently
|
|
* - options: Array of request options to apply to each request.
|
|
* - fulfilled: (callable) Function to invoke when a request completes.
|
|
* - rejected: (callable) Function to invoke when a request is rejected.
|
|
*/
|
|
public function __construct(
|
|
ClientInterface $client,
|
|
$requests,
|
|
array $config = []
|
|
) {
|
|
// Backwards compatibility.
|
|
if (isset($config['pool_size'])) {
|
|
$config['concurrency'] = $config['pool_size'];
|
|
} elseif (!isset($config['concurrency'])) {
|
|
$config['concurrency'] = 25;
|
|
}
|
|
|
|
if (isset($config['options'])) {
|
|
$opts = $config['options'];
|
|
unset($config['options']);
|
|
} else {
|
|
$opts = [];
|
|
}
|
|
|
|
$iterable = \GuzzleHttp\Promise\iter_for($requests);
|
|
$requests = function () use ($iterable, $client, $opts) {
|
|
foreach ($iterable as $key => $rfn) {
|
|
if ($rfn instanceof RequestInterface) {
|
|
yield $key => $client->sendAsync($rfn, $opts);
|
|
} elseif (is_callable($rfn)) {
|
|
yield $key => $rfn($opts);
|
|
} else {
|
|
throw new \InvalidArgumentException('Each value yielded by '
|
|
. 'the iterator must be a Psr7\Http\Message\RequestInterface '
|
|
. 'or a callable that returns a promise that fulfills '
|
|
. 'with a Psr7\Message\Http\ResponseInterface object.');
|
|
}
|
|
}
|
|
};
|
|
|
|
$this->each = new EachPromise($requests(), $config);
|
|
}
|
|
|
|
public function promise()
|
|
{
|
|
return $this->each->promise();
|
|
}
|
|
|
|
/**
|
|
* Sends multiple requests concurrently and returns an array of responses
|
|
* and exceptions that uses the same ordering as the provided requests.
|
|
*
|
|
* IMPORTANT: This method keeps every request and response in memory, and
|
|
* as such, is NOT recommended when sending a large number or an
|
|
* indeterminate number of requests concurrently.
|
|
*
|
|
* @param ClientInterface $client Client used to send the requests
|
|
* @param array|\Iterator $requests Requests to send concurrently.
|
|
* @param array $options Passes through the options available in
|
|
* {@see GuzzleHttp\Pool::__construct}
|
|
*
|
|
* @return array Returns an array containing the response or an exception
|
|
* in the same order that the requests were sent.
|
|
* @throws \InvalidArgumentException if the event format is incorrect.
|
|
*/
|
|
public static function batch(
|
|
ClientInterface $client,
|
|
$requests,
|
|
array $options = []
|
|
) {
|
|
$res = [];
|
|
self::cmpCallback($options, 'fulfilled', $res);
|
|
self::cmpCallback($options, 'rejected', $res);
|
|
$pool = new static($client, $requests, $options);
|
|
$pool->promise()->wait();
|
|
ksort($res);
|
|
|
|
return $res;
|
|
}
|
|
|
|
private static function cmpCallback(array &$options, $name, array &$results)
|
|
{
|
|
if (!isset($options[$name])) {
|
|
$options[$name] = function ($v, $k) use (&$results) {
|
|
$results[$k] = $v;
|
|
};
|
|
} else {
|
|
$currentFn = $options[$name];
|
|
$options[$name] = function ($v, $k) use (&$results, $currentFn) {
|
|
$currentFn($v, $k);
|
|
$results[$k] = $v;
|
|
};
|
|
}
|
|
}
|
|
}
|