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/*
* // Copyright (c) 2016-2019, Jaguar0625, gimre, BloodyRookie, Tech Bureau, Corp.
* // Copyright (c) 2020-present, Jaguar0625, gimre, BloodyRookie.
* // All rights reserved.
* //
* // This file is part of Catapult.
* //
* // Catapult is free software: you can redistribute it and/or modify
* // it under the terms of the GNU Lesser General Public License as published by
* // the Free Software Foundation, either version 3 of the License, or
* // (at your option) any later version.
* //
* // Catapult is distributed in the hope that it will be useful,
* // but WITHOUT ANY WARRANTY; without even the implied warranty of
* // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* // GNU Lesser General Public License for more details.
* //
* // You should have received a copy of the GNU Lesser General Public License
* // along with Catapult. If not, see <http://www.gnu.org/licenses/>.
*/
use super::amount_dto::*;
use super::entity_type_dto::*;
use super::generator_utils::*;
use super::key_dto::*;
use super::network_type_dto::*;
use super::signature_dto::*;
use super::timestamp_dto::*;
/// Binary layout for a transaction.
#[derive(Debug, Clone)]
pub struct TransactionBuilder {
/// Entity signature.
pub signature: SignatureDto,
/// Entity signer's public key.
pub signer_public_key: KeyDto,
/// Entity version.
pub version: u8,
/// Entity network.
pub network: NetworkTypeDto,
/// Entity type.
pub _type: EntityTypeDto,
/// Transaction fee.
pub fee: AmountDto,
/// Transaction deadline.
pub deadline: TimestampDto,
}
impl TransactionBuilder {
/// Creates an instance of TransactionBuilder from binary payload.
/// payload: Byte payload to use to serialize the object.
/// # Returns
/// A TransactionBuilder.
pub fn from_binary(payload: &[u8]) -> Self {
let mut _bytes = payload.to_vec();
_bytes = (&_bytes[4..]).to_vec();
let buf = fixed_bytes::<4>(&_bytes);
let _ = u32::from_le_bytes(buf); // kind:SIMPLE
_bytes = (&_bytes[4..]).to_vec();
let signature = SignatureDto::from_binary(&_bytes); // kind:CUSTOM1
_bytes = _bytes[signature.get_size()..].to_vec();
let signer_public_key = KeyDto::from_binary(&_bytes); // kind:CUSTOM1
_bytes = _bytes[signer_public_key.get_size()..].to_vec();
let buf = fixed_bytes::<4>(&_bytes);
let _ = u32::from_le_bytes(buf); // kind:SIMPLE
_bytes = (&_bytes[4..]).to_vec();
let buf = fixed_bytes::<1>(&_bytes);
let version = u8::from_le_bytes(buf); // kind:SIMPLE
_bytes = (&_bytes[1..]).to_vec();
let network = NetworkTypeDto::from_binary(&_bytes); // kind:CUSTOM2
_bytes = (&_bytes[network.get_size()..]).to_vec();
let _type = EntityTypeDto::from_binary(&_bytes); // kind:CUSTOM2
_bytes = (&_bytes[_type.get_size()..]).to_vec();
let fee = AmountDto::from_binary(&_bytes); // kind:CUSTOM1
_bytes = _bytes[fee.get_size()..].to_vec();
let deadline = TimestampDto::from_binary(&_bytes); // kind:CUSTOM1
_bytes = _bytes[deadline.get_size()..].to_vec();
// create object and call. // Transaction
TransactionBuilder { signature, signer_public_key, version, network, _type, fee, deadline }
}
/// Gets the size of the type.
///
/// Returns:
/// A size in bytes.
pub fn get_size(&self) -> usize {
let mut size = 0;
size += 4; // size;
size += 4; // verifiable_entity_header__reserved1;
size += self.signature.get_size(); // signature_size;
size += self.signer_public_key.get_size(); // signer_public_key_size;
size += 4; // entity_body__reserved1;
size += 1; // version;
size += self.network.get_size(); // network_size;
size += self._type.get_size(); // type_size;
size += self.fee.get_size(); // fee_size;
size += self.deadline.get_size(); // deadline_size;
size
}
/// Serializes self to bytes.
///
/// # Returns
/// A Serialized bytes.
pub fn serializer(&self) -> Vec<u8> {
let mut buf: Vec<u8> = vec![];
// Ignored serialization: size AttributeKind.SIMPLE
buf.append(&mut [0u8; 4].to_vec()); // kind:SIMPLE and is_reserved
buf.append(&mut self.signature.serializer()); // kind:CUSTOM
buf.append(&mut self.signer_public_key.serializer()); // kind:CUSTOM
buf.append(&mut [0u8; 4].to_vec()); // kind:SIMPLE and is_reserved
buf.append(&mut self.version.to_le_bytes().to_vec()); // serial_kind:SIMPLE
buf.append(&mut self.network.serializer()); // kind:CUSTOM
buf.append(&mut self._type.serializer()); // kind:CUSTOM
buf.append(&mut self.fee.serializer()); // kind:CUSTOM
buf.append(&mut self.deadline.serializer()); // kind:CUSTOM
buf
}
}