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<?php
namespace Illuminate\Cache;
use ArrayAccess;
use BadMethodCallException;
use Closure;
use DateTimeInterface;
use Illuminate\Cache\Events\CacheHit;
use Illuminate\Cache\Events\CacheMissed;
use Illuminate\Cache\Events\KeyForgotten;
use Illuminate\Cache\Events\KeyWritten;
use Illuminate\Contracts\Cache\Repository as CacheContract;
use Illuminate\Contracts\Cache\Store;
use Illuminate\Contracts\Events\Dispatcher;
use Illuminate\Support\Carbon;
use Illuminate\Support\InteractsWithTime;
use Illuminate\Support\Traits\Macroable;
/**
* @mixin \Illuminate\Contracts\Cache\Store
*/
class Repository implements ArrayAccess, CacheContract
{
use InteractsWithTime;
use Macroable {
__call as macroCall;
}
/**
* The cache store implementation.
*
* @var \Illuminate\Contracts\Cache\Store
*/
protected $store;
/**
* The event dispatcher implementation.
*
* @var \Illuminate\Contracts\Events\Dispatcher
*/
protected $events;
/**
* The default number of seconds to store items.
*
* @var int|null
*/
protected $default = 3600;
/**
* Create a new cache repository instance.
*
* @param \Illuminate\Contracts\Cache\Store $store
* @return void
*/
public function __construct(Store $store)
{
$this->store = $store;
}
/**
* Determine if an item exists in the cache.
*
* @param string $key
* @return bool
*/
public function has($key)
{
return ! is_null($this->get($key));
}
/**
* Determine if an item doesn't exist in the cache.
*
* @param string $key
* @return bool
*/
public function missing($key)
{
return ! $this->has($key);
}
/**
* Retrieve an item from the cache by key.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function get($key, $default = null)
{
if (is_array($key)) {
return $this->many($key);
}
$value = $this->store->get($this->itemKey($key));
// If we could not find the cache value, we will fire the missed event and get
// the default value for this cache value. This default could be a callback
// so we will execute the value function which will resolve it if needed.
if (is_null($value)) {
$this->event(new CacheMissed($key));
$value = value($default);
} else {
$this->event(new CacheHit($key, $value));
}
return $value;
}
/**
* Retrieve multiple items from the cache by key.
*
* Items not found in the cache will have a null value.
*
* @param array $keys
* @return array
*/
public function many(array $keys)
{
$values = $this->store->many(collect($keys)->map(function ($value, $key) {
return is_string($key) ? $key : $value;
})->values()->all());
return collect($values)->map(function ($value, $key) use ($keys) {
return $this->handleManyResult($keys, $key, $value);
})->all();
}
/**
* {@inheritdoc}
*/
public function getMultiple($keys, $default = null)
{
$defaults = [];
foreach ($keys as $key) {
$defaults[$key] = $default;
}
return $this->many($defaults);
}
/**
* Handle a result for the "many" method.
*
* @param array $keys
* @param string $key
* @param mixed $value
* @return mixed
*/
protected function handleManyResult($keys, $key, $value)
{
// If we could not find the cache value, we will fire the missed event and get
// the default value for this cache value. This default could be a callback
// so we will execute the value function which will resolve it if needed.
if (is_null($value)) {
$this->event(new CacheMissed($key));
return isset($keys[$key]) ? value($keys[$key]) : null;
}
// If we found a valid value we will fire the "hit" event and return the value
// back from this function. The "hit" event gives developers an opportunity
// to listen for every possible cache "hit" throughout this applications.
$this->event(new CacheHit($key, $value));
return $value;
}
/**
* Retrieve an item from the cache and delete it.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function pull($key, $default = null)
{
return tap($this->get($key, $default), function () use ($key) {
$this->forget($key);
});
}
/**
* Store an item in the cache.
*
* @param string $key
* @param mixed $value
* @param \DateTimeInterface|\DateInterval|int|null $ttl
* @return bool
*/
public function put($key, $value, $ttl = null)
{
if (is_array($key)) {
return $this->putMany($key, $value);
}
if ($ttl === null) {
return $this->forever($key, $value);
}
$seconds = $this->getSeconds($ttl);
if ($seconds <= 0) {
return $this->forget($key);
}
$result = $this->store->put($this->itemKey($key), $value, $seconds);
if ($result) {
$this->event(new KeyWritten($key, $value, $seconds));
}
return $result;
}
/**
* {@inheritdoc}
*/
public function set($key, $value, $ttl = null)
{
return $this->put($key, $value, $ttl);
}
/**
* Store multiple items in the cache for a given number of seconds.
*
* @param array $values
* @param \DateTimeInterface|\DateInterval|int|null $ttl
* @return bool
*/
public function putMany(array $values, $ttl = null)
{
if ($ttl === null) {
return $this->putManyForever($values);
}
$seconds = $this->getSeconds($ttl);
if ($seconds <= 0) {
return $this->deleteMultiple(array_keys($values));
}
$result = $this->store->putMany($values, $seconds);
if ($result) {
foreach ($values as $key => $value) {
$this->event(new KeyWritten($key, $value, $seconds));
}
}
return $result;
}
/**
* Store multiple items in the cache indefinitely.
*
* @param array $values
* @return bool
*/
protected function putManyForever(array $values)
{
$result = true;
foreach ($values as $key => $value) {
if (! $this->forever($key, $value)) {
$result = false;
}
}
return $result;
}
/**
* {@inheritdoc}
*/
public function setMultiple($values, $ttl = null)
{
return $this->putMany(is_array($values) ? $values : iterator_to_array($values), $ttl);
}
/**
* Store an item in the cache if the key does not exist.
*
* @param string $key
* @param mixed $value
* @param \DateTimeInterface|\DateInterval|int|null $ttl
* @return bool
*/
public function add($key, $value, $ttl = null)
{
if ($ttl !== null) {
if ($this->getSeconds($ttl) <= 0) {
return false;
}
// If the store has an "add" method we will call the method on the store so it
// has a chance to override this logic. Some drivers better support the way
// this operation should work with a total "atomic" implementation of it.
if (method_exists($this->store, 'add')) {
$seconds = $this->getSeconds($ttl);
return $this->store->add(
$this->itemKey($key), $value, $seconds
);
}
}
// If the value did not exist in the cache, we will put the value in the cache
// so it exists for subsequent requests. Then, we will return true so it is
// easy to know if the value gets added. Otherwise, we will return false.
if (is_null($this->get($key))) {
return $this->put($key, $value, $ttl);
}
return false;
}
/**
* Increment the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return int|bool
*/
public function increment($key, $value = 1)
{
return $this->store->increment($key, $value);
}
/**
* Decrement the value of an item in the cache.
*
* @param string $key
* @param mixed $value
* @return int|bool
*/
public function decrement($key, $value = 1)
{
return $this->store->decrement($key, $value);
}
/**
* Store an item in the cache indefinitely.
*
* @param string $key
* @param mixed $value
* @return bool
*/
public function forever($key, $value)
{
$result = $this->store->forever($this->itemKey($key), $value);
if ($result) {
$this->event(new KeyWritten($key, $value));
}
return $result;
}
/**
* Get an item from the cache, or execute the given Closure and store the result.
*
* @param string $key
* @param \DateTimeInterface|\DateInterval|int|null $ttl
* @param \Closure $callback
* @return mixed
*/
public function remember($key, $ttl, Closure $callback)
{
$value = $this->get($key);
// If the item exists in the cache we will just return this immediately and if
// not we will execute the given Closure and cache the result of that for a
// given number of seconds so it's available for all subsequent requests.
if (! is_null($value)) {
return $value;
}
$this->put($key, $value = $callback(), $ttl);
return $value;
}
/**
* Get an item from the cache, or execute the given Closure and store the result forever.
*
* @param string $key
* @param \Closure $callback
* @return mixed
*/
public function sear($key, Closure $callback)
{
return $this->rememberForever($key, $callback);
}
/**
* Get an item from the cache, or execute the given Closure and store the result forever.
*
* @param string $key
* @param \Closure $callback
* @return mixed
*/
public function rememberForever($key, Closure $callback)
{
$value = $this->get($key);
// If the item exists in the cache we will just return this immediately
// and if not we will execute the given Closure and cache the result
// of that forever so it is available for all subsequent requests.
if (! is_null($value)) {
return $value;
}
$this->forever($key, $value = $callback());
return $value;
}
/**
* Remove an item from the cache.
*
* @param string $key
* @return bool
*/
public function forget($key)
{
return tap($this->store->forget($this->itemKey($key)), function ($result) use ($key) {
if ($result) {
$this->event(new KeyForgotten($key));
}
});
}
/**
* {@inheritdoc}
*/
public function delete($key)
{
return $this->forget($key);
}
/**
* {@inheritdoc}
*/
public function deleteMultiple($keys)
{
$result = true;
foreach ($keys as $key) {
if (! $this->forget($key)) {
$result = false;
}
}
return $result;
}
/**
* {@inheritdoc}
*/
public function clear()
{
return $this->store->flush();
}
/**
* Begin executing a new tags operation if the store supports it.
*
* @param array|mixed $names
* @return \Illuminate\Cache\TaggedCache
*
* @throws \BadMethodCallException
*/
public function tags($names)
{
if (! method_exists($this->store, 'tags')) {
throw new BadMethodCallException('This cache store does not support tagging.');
}
$cache = $this->store->tags(is_array($names) ? $names : func_get_args());
if (! is_null($this->events)) {
$cache->setEventDispatcher($this->events);
}
return $cache->setDefaultCacheTime($this->default);
}
/**
* Format the key for a cache item.
*
* @param string $key
* @return string
*/
protected function itemKey($key)
{
return $key;
}
/**
* Get the default cache time.
*
* @return int|null
*/
public function getDefaultCacheTime()
{
return $this->default;
}
/**
* Set the default cache time in seconds.
*
* @param int|null $seconds
* @return $this
*/
public function setDefaultCacheTime($seconds)
{
$this->default = $seconds;
return $this;
}
/**
* Get the cache store implementation.
*
* @return \Illuminate\Contracts\Cache\Store
*/
public function getStore()
{
return $this->store;
}
/**
* Fire an event for this cache instance.
*
* @param string $event
* @return void
*/
protected function event($event)
{
if (isset($this->events)) {
$this->events->dispatch($event);
}
}
/**
* Get the event dispatcher instance.
*
* @return \Illuminate\Contracts\Events\Dispatcher
*/
public function getEventDispatcher()
{
return $this->events;
}
/**
* Set the event dispatcher instance.
*
* @param \Illuminate\Contracts\Events\Dispatcher $events
* @return void
*/
public function setEventDispatcher(Dispatcher $events)
{
$this->events = $events;
}
/**
* Determine if a cached value exists.
*
* @param string $key
* @return bool
*/
public function offsetExists($key)
{
return $this->has($key);
}
/**
* Retrieve an item from the cache by key.
*
* @param string $key
* @return mixed
*/
public function offsetGet($key)
{
return $this->get($key);
}
/**
* Store an item in the cache for the default time.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function offsetSet($key, $value)
{
$this->put($key, $value, $this->default);
}
/**
* Remove an item from the cache.
*
* @param string $key
* @return void
*/
public function offsetUnset($key)
{
$this->forget($key);
}
/**
* Calculate the number of seconds for the given TTL.
*
* @param \DateTimeInterface|\DateInterval|int $ttl
* @return int
*/
protected function getSeconds($ttl)
{
$duration = $this->parseDateInterval($ttl);
if ($duration instanceof DateTimeInterface) {
$duration = Carbon::now()->diffInRealSeconds($duration, false);
}
return (int) $duration > 0 ? $duration : 0;
}
/**
* Handle dynamic calls into macros or pass missing methods to the store.
*
* @param string $method
* @param array $parameters
* @return mixed
*/
public function __call($method, $parameters)
{
if (static::hasMacro($method)) {
return $this->macroCall($method, $parameters);
}
return $this->store->$method(...$parameters);
}
/**
* Clone cache repository instance.
*
* @return void
*/
public function __clone()
{
$this->store = clone $this->store;
}
}