/**
* @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 Parser $parser
* @return TransactionInput
* @throws \BitWasp\Buffertools\Exceptions\ParserOutOfRange
*/
public function fromParser(Parser $parser)
{
$outpoint = $this->outpointSerializer->fromParser($parser);
/**
* @var Buffer $scriptBuf
* @var int|string $sequence
*/
list($scriptBuf, $sequence) = $this->getInputTemplate()->parse($parser);
return new TransactionInput($outpoint, new Script($scriptBuf), $sequence);
}
/**
* @param Parser $parser
* @return array|OutPointInterface
*/
public function fromParser(Parser $parser)
{
$buffer = $parser->getBuffer();
if ($buffer->getSize() > 36) {
$buffer = $buffer->slice(0, 36);
if (isset($this->cachedStr[$buffer->getBinary()])) {
$this->cached++;
return $this->cachedStr[$buffer->getBinary()];
}
}
$parsed = $this->serializer->fromParser($parser);
$this->parse++;
return $parsed;
}