/**
* Tests the Joomla\Cache\Item class.
*
* @return void
*
* @since 1.0
*/
public function testItem()
{
$this->assertEquals('foo', $this->instance->getKey());
$this->assertNull($this->instance->getValue());
$this->assertFalse($this->instance->isHit());
$this->instance->setValue('bar');
$this->assertEquals('bar', $this->instance->getValue());
$this->assertTrue($this->instance->isHit());
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
*/
public function get($key)
{
$item = new Item($key);
if ($this->exists($key)) {
$item->setValue(xcache_get($key));
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
*/
public function get($key)
{
$item = new Item($key);
if (isset(self::$store[$key])) {
$item->setValue(self::$store[$key]);
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
*/
public function get($key)
{
$item = new Item($key);
$success = true;
$value = wincache_ucache_get($key, $success);
if ($success) {
$item->setValue($value);
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
*/
public function get($key)
{
$this->connect();
$value = $this->driver->get($key);
$item = new Item($key);
if ($value !== false) {
$item->setValue($value);
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
* @throws \RuntimeException
*/
public function get($key)
{
$success = false;
$value = apc_fetch($key, $success);
$item = new Item($key);
if ($success) {
$item->setValue($value);
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
*/
public function getItem($key)
{
$item = new Item($key);
try {
$value = $this->getValue($key);
$item->setValue($value);
} catch (\Exception $e) {
/**
* Backend caching mechanisms may throw exceptions
* to indicate missing data. Catch all exceptions
* so program flow is uninterrupted. For misses
* we can safely do nothing and return the
* CacheItem we created since it flags itself as
* a miss when constructed. Specific cache classes
* should override this method and deal with
* exceptions appropriately.
*/
}
return $item;
}
/**
* Method to get a storage entry value from a key.
*
* @param string $key The storage entry identifier.
*
* @return CacheItemInterface
*
* @since 1.0
* @throws \RuntimeException
*/
public function get($key)
{
// If the cached data has expired remove it and return.
if ($this->exists($key) && $this->isExpired($key)) {
try {
$this->remove($key);
} catch (\RuntimeException $e) {
throw new \RuntimeException(sprintf('Unable to clean expired cache entry for %s.', $key), null, $e);
}
return new Item($key);
}
if (!$this->exists($key)) {
return new Item($key);
}
$resource = @fopen($this->fetchStreamUri($key), 'rb');
if (!$resource) {
throw new \RuntimeException(sprintf('Unable to fetch cache entry for %s. Connot open the resource.', $key));
}
// If locking is enabled get a shared lock for reading on the resource.
if ($this->options['file.locking'] && !flock($resource, LOCK_SH)) {
throw new \RuntimeException(sprintf('Unable to fetch cache entry for %s. Connot obtain a lock.', $key));
}
$data = stream_get_contents($resource);
// If locking is enabled release the lock on the resource.
if ($this->options['file.locking'] && !flock($resource, LOCK_UN)) {
throw new \RuntimeException(sprintf('Unable to fetch cache entry for %s. Connot release the lock.', $key));
}
fclose($resource);
$item = new Item($key);
$item->setValue(unserialize($data));
return $item;
}