/**
* @return BlogPostInterface[]
*/
public function listBlogs()
{
$blogList = [];
// TODO List key is very bad
$keyList = $this->bucket->getKeyList();
foreach ($keyList as $key) {
$blogPost = $this->getBlogPost($key);
if (isset($blogPost)) {
$blogList[] = $blogPost;
}
}
return $blogList;
}
/**
* 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;
}
/**
* {@inheritdoc}
*/
protected function doFlush()
{
try {
$keyList = $this->bucket->getKeyList();
foreach ($keyList as $key) {
$this->bucket->delete($key);
}
return true;
} catch (Exception\RiakException $e) {
// Do nothing
}
return false;
}