PhabricatorFaviconRefQuery.php
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	<?php

	final class PhabricatorFaviconRefQuery extends Phobject {

	private $refs;

	public function withRefs(array $refs) {
	assert_instances_of($refs, 'PhabricatorFaviconRef');
	$this->refs = $refs;
	return $this;
	}

	public function execute() {
	$viewer = PhabricatorUser::getOmnipotentUser();

	$refs = $this->refs;

	$config_digest = PhabricatorFaviconRef::newConfigurationDigest();

	$ref_map = array();
	foreach ($refs as $ref) {
	$ref_digest = $ref->newDigest();
	$ref_key = "favicon({$config_digest},{$ref_digest},8)";

	$ref
	->setViewer($viewer)
	->setCacheKey($ref_key);

	$ref_map[$ref_key] = $ref;
	}

	$cache = PhabricatorCaches::getImmutableCache();
	$ref_hits = $cache->getKeys(array_keys($ref_map));

	foreach ($ref_hits as $ref_key => $ref_uri) {
	$ref_map[$ref_key]->setURI($ref_uri);
	unset($ref_map[$ref_key]);
	}

	if ($ref_map) {
	$new_map = array();
	foreach ($ref_map as $ref_key => $ref) {
	$ref_uri = $ref->newURI();
	$ref->setURI($ref_uri);
	$new_map[$ref_key] = $ref_uri;
	}

	$cache->setKeys($new_map);
	}

	return $refs;
	}


	}