public function saveBlogPost(BlogPostInterface $blog)
{
$identifier = $blog->getIdentifier();
$blogJson = json_encode($blog, JSON_PRETTY_PRINT);
$obj = new Object($identifier);
$obj->setContent($blogJson);
$obj->setContentType('application/json');
try {
$this->bucket->put($obj);
} catch (RiakException $ex) {
// Retry
$this->bucket->put($obj);
}
}
/**
* On-read conflict resolution. Applied approach here is last write wins.
* Specific needs may override this method to apply alternate conflict resolutions.
*
* {@internal Riak does not attempt to resolve a write conflict, and store
* it as sibling of conflicted one. By following this approach, it is up to
* the next read to resolve the conflict. When this happens, your fetched
* object will have a list of siblings (read as a list of objects).
* In our specific case, we do not care about the intermediate ones since
* they are all the same read from storage, and we do apply a last sibling
* (last write) wins logic.
* If by any means our resolution generates another conflict, it'll up to
* next read to properly solve it.}
*
* @param string $id
* @param string $vClock
* @param array $objectList
*
* @return \Riak\Object
*/
protected function resolveConflict($id, $vClock, array $objectList)
{
// Our approach here is last-write wins
$winner = $objectList[count($objectList)];
$putInput = new Input\PutInput();
$putInput->setVClock($vClock);
$mergedObject = new Object($id);
$mergedObject->setContent($winner->getContent());
$this->bucket->put($mergedObject, $putInput);
return $mergedObject;
}
/**
* Retrieve a sibling by sibling number.
* @param integer $i - Sibling number.
* @param integer $r - R-Value. Wait until this many partitions
* have responded before returning to client.
* @return Object.
*/
public function getSibling($i, $r = NULL)
{
# Use defaults if not specified.
$r = $this->bucket->getR($r);
# Run the request...
$vtag = $this->siblings[$i];
$params = array('r' => $r, 'vtag' => $vtag);
$url = Utils::buildRestPath($this->client, $this->bucket, $this->key, NULL, $params);
$response = Utils::httpRequest('GET', $url);
# Respond with a new object...
$obj = new Object($this->client, $this->bucket, $this->key);
$obj->jsonize = $this->jsonize;
$obj->populate($response, array(200));
return $obj;
}
/**
* {@inheritdoc}
*/
protected function doSave($id, $data, $lifeTime = 0)
{
try {
$object = new Object($id);
$object->setContent(serialize($data));
if ($lifeTime > 0) {
$object->addMetadata(self::EXPIRES_HEADER, (string) (time() + $lifeTime));
}
$this->bucket->put($object);
return true;
} catch (Exception\RiakException $e) {
// Do nothing
}
return false;
}
/**
* Search a secondary index
* @author Eric Stevens <*****@*****.**>
* @param string $indexName - The name of the index to search
* @param string $indexType - The type of index ('int' or 'bin')
* @param string|int $startOrExact
* @param string|int optional $end
* @param bool $dedupe - whether to eliminate duplicate entries if any
* @return array of Links
*/
public function indexSearch($indexName, $indexType, $startOrExact, $end = NULL, $dedupe = false)
{
$url = Utils::buildIndexPath($this->client, $this, "{$indexName}_{$indexType}", $startOrExact, $end, NULL);
$response = Utils::httpRequest('GET', $url);
$obj = new Object($this->client, $this, NULL);
$obj->populate($response, array(200));
if (!$obj->exists()) {
throw \Exception("Error searching index.");
}
$data = $obj->getData();
$keys = array_map("urldecode", $data["keys"]);
$seenKeys = array();
foreach ($keys as $id => &$key) {
if ($dedupe) {
if (isset($seenKeys[$key])) {
unset($keys[$id]);
continue;
}
$seenKeys[$key] = true;
}
$key = new Link($this->name, $key);
$key->client = $this->client;
}
return $keys;
}
