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<?php |
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namespace MySQLReplication\Event\RowEvent; |
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use MySQLReplication\BinaryDataReader\BinaryDataReader; |
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use MySQLReplication\Definitions\ConstFieldType; |
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/** |
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* Class Columns |
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* @package MySQLReplication\Event\RowEvent |
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*/ |
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class Columns |
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{ |
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/** |
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* @var array |
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*/ |
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private static $field; |
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/** |
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* @param string $columnType |
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* @param array $columnSchema |
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* @param BinaryDataReader $binaryDataReader |
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* @return array |
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* @throws \MySQLReplication\BinaryDataReader\BinaryDataReaderException |
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*/ |
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51 |
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public static function parse($columnType, array $columnSchema, BinaryDataReader $binaryDataReader) |
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{ |
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self::$field = []; |
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self::$field['type'] = $columnType; |
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self::$field['name'] = $columnSchema['COLUMN_NAME']; |
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self::$field['collation_name'] = $columnSchema['COLLATION_NAME']; |
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self::$field['character_set_name'] = $columnSchema['CHARACTER_SET_NAME']; |
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self::$field['comment'] = $columnSchema['COLUMN_COMMENT']; |
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self::$field['unsigned'] = !(stripos($columnSchema['COLUMN_TYPE'], 'unsigned') === false); |
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self::$field['type_is_bool'] = false; |
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self::$field['is_primary'] = $columnSchema['COLUMN_KEY'] === 'PRI'; |
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if (self::$field['type'] === ConstFieldType::VARCHAR) { |
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self::$field['max_length'] = $binaryDataReader->readInt16(); |
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} elseif (self::$field['type'] === ConstFieldType::DOUBLE) { |
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1 |
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self::$field['size'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::FLOAT) { |
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1 |
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self::$field['size'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::TIMESTAMP2) { |
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self::$field['fsp'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::DATETIME2) { |
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self::$field['fsp'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::TIME2) { |
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self::$field['fsp'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::TINY && $columnSchema['COLUMN_TYPE'] === 'tinyint(1)') { |
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self::$field['type_is_bool'] = true; |
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} elseif (self::$field['type'] === ConstFieldType::VAR_STRING || self::$field['type'] === ConstFieldType::STRING) { |
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self::getFieldSpecial($binaryDataReader, $columnSchema); |
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} elseif (self::$field['type'] === ConstFieldType::BLOB || self::$field['type'] === ConstFieldType::IGNORE) { |
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self::$field['length_size'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::GEOMETRY) { |
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self::$field['length_size'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::JSON) { |
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self::$field['length_size'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::NEWDECIMAL) { |
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self::$field['precision'] = $binaryDataReader->readUInt8(); |
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self::$field['decimals'] = $binaryDataReader->readUInt8(); |
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} elseif (self::$field['type'] === ConstFieldType::BIT) { |
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1 |
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$bits = $binaryDataReader->readUInt8(); |
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1 |
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$bytes = $binaryDataReader->readUInt8(); |
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self::$field['bits'] = ($bytes * 8) + $bits; |
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self::$field['bytes'] = (int)((self::$field['bits'] + 7) / 8); |
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1 |
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} |
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return self::$field; |
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} |
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/** |
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* @param BinaryDataReader $packet |
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* @param array $columnSchema |
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* @throws \MySQLReplication\BinaryDataReader\BinaryDataReaderException |
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*/ |
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5 |
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protected static function getFieldSpecial(BinaryDataReader $packet, array $columnSchema) |
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{ |
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$metadata = ($packet->readUInt8() << 8) + $packet->readUInt8(); |
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$real_type = $metadata >> 8; |
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if ($real_type === ConstFieldType::SET || $real_type === ConstFieldType::ENUM) { |
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self::$field['type'] = $real_type; |
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self::$field['size'] = $metadata & 0x00ff; |
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self::getFieldSpecialValues($columnSchema); |
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} else { |
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self::$field['max_length'] = ((($metadata >> 4) & 0x300) ^ 0x300) + ($metadata & 0x00ff); |
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} |
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} |
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/** |
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* @param array $columnSchema |
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*/ |
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2 |
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protected static function getFieldSpecialValues(array $columnSchema) |
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{ |
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if (self::$field['type'] === ConstFieldType::ENUM) { |
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self::$field['enum_values'] = explode( |
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',', str_replace(['enum(', ')', '\''], '', $columnSchema['COLUMN_TYPE']) |
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); |
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} else if (self::$field['type'] === ConstFieldType::SET) { |
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self::$field['set_values'] = explode( |
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',', str_replace(['set(', ')', '\''], '', $columnSchema['COLUMN_TYPE']) |
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); |
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1 |
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} |
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} |
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} |
krowinski /
php-mysql-replication
