MemcachedEngine: Impement Many operations

src/Cache/Engine/MemcachedEngine.php

@@ -233,6 +233,27 @@ class MemcachedEngine extends CacheEngine {
 	}
 
 /**
+ * Write many cache entries to the cache at once
+ *
+ * @param array $data An array of data to be stored in the cache
+ * @return array of bools for each key provided, true if the data was successfully cached, false on failure
+ */
+	public function writeMany($data) {
+		$cacheData = array();
+		foreach ($data as $key => $value) {
+			$cacheData[$this->_key($key)] = $value;
+		}
+
+		$success = $this->_Memcached->setMulti($cacheData);
+
+		$return = array();
+		foreach (array_keys($data) as $key) {
+			$return[$key] = $success;
+		}
+		return $return;
+	}
+
+/**
  * Read a key from the cache
  *
  * @param string $key Identifier for the data
@@ -245,6 +266,27 @@ class MemcachedEngine extends CacheEngine {
 	}
 
 /**
+ * Read many keys from the cache at once
+ *
+ * @param array $keys An array of identifiers for the data
+ * @return An array containing, for each of the given $keys, the cached data or false if cached data could not be
+ * retreived
+ */
+	public function readMany($keys) {
+		$cacheKeys = array();
+		foreach ($keys as $key) {
+			$cacheKeys[] = $this->_key($key);
+		}
+
+		$values = $this->_Memcached->getMulti($cacheKeys);
+		$return = array();
+		foreach ($keys as &$key) {
+			$return[$key] = array_key_exists($this->_key($key), $values) ? $values[$this->_key($key)] : false;
+		}
+		return $return;
+	}
+
+/**
  * Increments the value of an integer cached key
  *
  * @param string $key Identifier for the data
@@ -285,6 +327,28 @@ class MemcachedEngine extends CacheEngine {
 	}
 
 /**
+ * Delete many keys from the cache at once
+ *
+ * @param array $keys An array of identifiers for the data
+ * @return array of boolean values that are true if the key was successfully deleted, false if it didn't exist or
+ * couldn't be removed
+ */
+	public function deleteMany($keys) {
+		$cacheKeys = array();
+		foreach ($keys as $key) {
+			$cacheKeys[] = $this->_key($key);
+		}
+
+		$success = $this->_Memcached->deleteMulti($cacheKeys);
+
+		$return = array();
+		foreach ($keys as $key) {
+			$return[$key] = $success;
+		}
+		return $return;
+	}
+
+/**
  * Delete all keys from the cache
  *
  * @param boolean $check

tests/TestCase/Cache/Engine/MemcachedEngineTest.php

@@ -451,6 +451,85 @@ class MemcachedEngineTest extends TestCase {
 	}
 
 /**
+ * testReadMany method
+ *
+ * @return void
+ */
+	public function testReadMany() {
+		$this->_configCache(['duration' => 2]);
+		$data = array(
+			'App.falseTest' => false,
+			'App.trueTest' => true,
+			'App.nullTest' => null,
+			'App.zeroTest' => 0,
+			'App.zeroTest2' => '0'
+		);
+		foreach ($data as $key => $value) {
+			Cache::write($key, $value, 'memcached');
+		}
+
+		$read = Cache::readMany(array_keys($data), 'memcached');
+
+		$this->assertSame($read['App.falseTest'], false);
+		$this->assertSame($read['App.trueTest'], true);
+		$this->assertSame($read['App.nullTest'], null);
+		$this->assertSame($read['App.zeroTest'], 0);
+		$this->assertSame($read['App.zeroTest2'], '0');
+	}
+
+/**
+ * testWriteMany method
+ *
+ * @return void
+ */
+	public function testWriteMany() {
+		$this->_configCache(['duration' => 2]);
+		$data = array(
+			'App.falseTest' => false,
+			'App.trueTest' => true,
+			'App.nullTest' => null,
+			'App.zeroTest' => 0,
+			'App.zeroTest2' => '0'
+		);
+		Cache::writeMany($data, 'memcached');
+
+		$this->assertSame(Cache::read('App.falseTest', 'memcached'), false);
+		$this->assertSame(Cache::read('App.trueTest', 'memcached'), true);
+		$this->assertSame(Cache::read('App.nullTest', 'memcached'), null);
+		$this->assertSame(Cache::read('App.zeroTest', 'memcached'), 0);
+		$this->assertSame(Cache::read('App.zeroTest2', 'memcached'), '0');
+	}
+
+/**
+ * testDeleteMany method
+ *
+ * @return void
+ */
+	public function testDeleteMany() {
+		$this->_configCache();
+		$data = array(
+			'App.falseTest' => false,
+			'App.trueTest' => true,
+			'App.nullTest' => null,
+			'App.zeroTest' => 0,
+			'App.zeroTest2' => '0',
+		);
+		foreach ($data as $key => $value) {
+			Cache::write($key, $value, 'memcached');
+		}
+		Cache::write('App.keepTest', 'keepMe', 'memcached');
+
+		Cache::deleteMany(array_merge(array_keys($data), ['App.doesNotExist']), 'memcached');
+
+		$this->assertSame(Cache::read('App.falseTest', 'memcached'), false);
+		$this->assertSame(Cache::read('App.trueTest', 'memcached'), false);
+		$this->assertSame(Cache::read('App.nullTest', 'memcached'), false);
+		$this->assertSame(Cache::read('App.zeroTest', 'memcached'), false);
+		$this->assertSame(Cache::read('App.zeroTest2', 'memcached'), false);
+		$this->assertSame(Cache::read('App.keepTest', 'memcached'), 'keepMe');
+	}
+
+/**
  * testExpiry method
  *
  * @return void