/**
* @param OutPointInterface[] $requiredOutpoints
* @return UtxoInterface[]
*/
public function fetchView(array $requiredOutpoints)
{
try {
$utxos = [];
$required = [];
$cacheHits = [];
foreach ($requiredOutpoints as $c => $outpoint) {
$key = $this->outpointSerializer->serialize($outpoint)->getBinary();
if ($this->set->contains($key)) {
list($value, $scriptPubKey) = $this->set->fetch($key);
$cacheHits[] = $key;
$utxos[] = new Utxo($outpoint, new TransactionOutput($value, new Script(new Buffer($scriptPubKey))));
} else {
$required[] = $outpoint;
}
}
if (empty($required) === false) {
$utxos = array_merge($utxos, $this->db->fetchUtxoDbList($this->outpointSerializer, $required));
}
if ($this->caching) {
$this->cacheHits = $cacheHits;
}
return $utxos;
} catch (\Exception $e) {
echo $e->getMessage() . PHP_EOL;
throw new \RuntimeException('Failed to find UTXOS in set');
}
}
/**
* @param OutPointInterface $outpoint
* @return mixed
*/
public function serialize(OutPointInterface $outpoint)
{
if (isset($this->cachedObj[$outpoint])) {
$this->cached++;
return $this->cachedObj[$outpoint];
}
$buffer = $this->serializer->serialize($outpoint);
$this->cachedObj[$outpoint] = $buffer;
$this->cachedStr[$buffer->getBinary()] = $outpoint;
$this->serialize++;
return $buffer;
}
/**
* @param TransactionInputInterface $input
* @return Buffer
*/
public function serialize(TransactionInputInterface $input)
{
return Buffertools::concat($this->outpointSerializer->serialize($input->getOutPoint()), $this->getInputTemplate()->write([$input->getScript()->getBuffer(), $input->getSequence()]));
}
