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<?php |
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/** |
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* Plasma Driver MySQL component |
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* Copyright 2018-2019 PlasmaPHP, All Rights Reserved |
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* |
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* Website: https://github.com/PlasmaPHP |
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* License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE |
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*/ |
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namespace Plasma\Drivers\MySQL\Commands; |
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/** |
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* Statement Execute command. |
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* @internal |
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*/ |
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class StatementExecuteCommand extends QueryCommand { |
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/** |
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* The identifier for this command. |
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* @var int |
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* @source |
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*/ |
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const COMMAND_ID = 0x17; |
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/** |
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* @var mixed |
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*/ |
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protected $id; |
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/** |
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* @var array |
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*/ |
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protected $params; |
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/** |
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* @var \Plasma\ColumnDefinitionInterface[] |
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*/ |
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protected $paramsDef; |
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/** |
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* @var int |
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*/ |
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protected $cursor; |
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/** |
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* Constructor. |
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* @param \Plasma\DriverInterface $driver |
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* @param mixed $id |
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* @param string $query |
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* @param array $params |
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* @param \Plasma\ColumnDefinitionInterface[] $paramsDef |
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* @param int $cursor |
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*/ |
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function __construct(\Plasma\DriverInterface $driver, $id, string $query, array $params, array $paramsDef, int $cursor = 0) { |
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parent::__construct($driver, $query); |
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$this->id = $id; |
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$this->params = $params; |
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$this->paramsDef = $paramsDef; |
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$this->cursor = $cursor; |
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} |
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/** |
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* Get the encoded message for writing to the database connection. |
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* @return string |
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*/ |
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function getEncodedMessage(): string { |
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$packet = \chr(static::COMMAND_ID); |
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$packet .= \Plasma\BinaryBuffer::writeInt4($this->id); |
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$packet .= \chr($this->cursor); |
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$packet .= \Plasma\BinaryBuffer::writeInt4(1); // Iteration count is always 1 |
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$bitmapOffset = \strlen($packet); |
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$packet .= \str_repeat("\x00", ((\count($this->params) + 7) >> 3)); |
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$bound = 0; |
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$types = ''; |
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$values = ''; |
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foreach($this->params as $id => $param) { |
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if($param === null) { |
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1 |
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$offset = $bitmapOffset + ($id >> 3); |
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1 |
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$packet[$offset] = $packet[$offset] | \chr((1 << ($id % 8))); |
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} else { |
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$bound = 1; |
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} |
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try { |
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$encode = \Plasma\Types\TypeExtensionsManager::getManager('driver-mysql') |
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->encodeType($param, $this->paramsDef[$id]); |
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$unsigned = $encode->isUnsigned(); |
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$type = $encode->getDatabaseType(); |
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$value = $encode->getValue(); |
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} catch (\Plasma\Exception $e) { |
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[ $unsigned, $type, $value ] = \Plasma\Drivers\MySQL\BinaryProtocolValues::encode($param); |
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} |
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$types .= \chr($type).($unsigned ? "\x80" : "\x00"); |
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$values .= $value; |
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} |
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$packet .= \chr($bound); |
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if($bound) { |
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$packet .= $types; |
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$packet .= $values; |
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} |
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return $packet; |
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} |
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/** |
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* Whether the sequence ID should be resetted. |
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* @return bool |
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*/ |
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function resetSequence(): bool { |
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return true; |
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} |
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/** |
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* Sends the next received value into the command. |
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* @param mixed $value |
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* @return void |
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* @throws \Plasma\Exception |
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*/ |
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function onNext($value): void { |
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if($this->cursor > 0 && $this->fieldsCount > 0 && $this->fieldsCount <= \count($this->fields)) { |
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1 |
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if(!($value instanceof \Plasma\Drivers\MySQL\Messages\OkResponseMessage || $value instanceof \Plasma\Drivers\MySQL\Messages\EOFMessage)) { |
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throw new \Plasma\Exception('Requested a cursor, but received row instead'); |
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1 |
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} elseif(($value->statusFlags & \Plasma\Drivers\MySQL\StatusFlags::SERVER_STATUS_CURSOR_EXISTS) === 0) { |
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throw new \Plasma\Exception('Requested a cursor, but did not receive one'); |
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} |
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} |
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parent::onNext($value); |
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} |
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/** |
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* Parses the binary resultset row and returns the row. |
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* @param \Plasma\BinaryBuffer $buffer |
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* @return array |
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*/ |
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protected function parseResultsetRow(\Plasma\BinaryBuffer $buffer): array { |
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$buffer->read(1); // remove packet header |
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$nullRow = array(); |
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$i = 0; |
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/** @var \Plasma\ColumnDefinitionInterface $column */ |
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foreach($this->fields as $column) { // Handle NULL-bitmap |
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if((\ord($buffer[(($i + 2) >> 3)]) & (1 << (($i + 2) % 8))) !== 0) { |
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$nullRow[$column->getName()] = null; |
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} |
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$i++; |
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} |
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$buffer->read(((\count($this->fields) + 9) >> 3)); // Remove NULL-bitmap |
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$row = array(); |
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/** @var \Plasma\ColumnDefinitionInterface $column */ |
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foreach($this->fields as $column) { |
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if(\array_key_exists($column->getName(), $nullRow)) { |
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$row[$column->getName()] = null; |
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continue; |
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} |
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try { |
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$value = \Plasma\Types\TypeExtensionsManager::getManager('driver-mysql') |
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->decodeType($column->getType(), $buffer) |
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->getValue(); |
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} catch (\Plasma\Exception $e) { |
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$value = \Plasma\Drivers\MySQL\BinaryProtocolValues::decode($column, $buffer); |
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} |
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$row[$column->getName()] = $value; |
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} |
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return $row; |
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} |
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} |
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PlasmaPHP /
driver-mysql
