io.nem.catapult.builders.CosignatureBuilder Maven / Gradle / Ivy
/**
*** Copyright (c) 2016-present,
*** Jaguar0625, gimre, BloodyRookie, Tech Bureau, Corp. 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 .
**/
package io.nem.symbol.catapult.builders;
import java.io.DataInputStream;
/** Cosignature attached to an aggregate transaction. */
public class CosignatureBuilder implements Serializer {
/** Cosigner public key. */
private final KeyDto signerPublicKey;
/** Cosigner signature. */
private final SignatureDto signature;
/**
* Constructor - Creates an object from stream.
*
* @param stream Byte stream to use to serialize the object.
*/
protected CosignatureBuilder(final DataInputStream stream) {
this.signerPublicKey = KeyDto.loadFromBinary(stream);
this.signature = SignatureDto.loadFromBinary(stream);
}
/**
* Constructor.
*
* @param signerPublicKey Cosigner public key.
* @param signature Cosigner signature.
*/
protected CosignatureBuilder(final KeyDto signerPublicKey, final SignatureDto signature) {
GeneratorUtils.notNull(signerPublicKey, "signerPublicKey is null");
GeneratorUtils.notNull(signature, "signature is null");
this.signerPublicKey = signerPublicKey;
this.signature = signature;
}
/**
* Creates an instance of CosignatureBuilder.
*
* @param signerPublicKey Cosigner public key.
* @param signature Cosigner signature.
* @return Instance of CosignatureBuilder.
*/
public static CosignatureBuilder create(final KeyDto signerPublicKey, final SignatureDto signature) {
return new CosignatureBuilder(signerPublicKey, signature);
}
/**
* Gets cosigner public key.
*
* @return Cosigner public key.
*/
public KeyDto getSignerPublicKey() {
return this.signerPublicKey;
}
/**
* Gets cosigner signature.
*
* @return Cosigner signature.
*/
public SignatureDto getSignature() {
return this.signature;
}
/**
* Gets the size of the object.
*
* @return Size in bytes.
*/
public int getSize() {
int size = 0;
size += this.signerPublicKey.getSize();
size += this.signature.getSize();
return size;
}
/**
* Creates an instance of CosignatureBuilder from a stream.
*
* @param stream Byte stream to use to serialize the object.
* @return Instance of CosignatureBuilder.
*/
public static CosignatureBuilder loadFromBinary(final DataInputStream stream) {
return new CosignatureBuilder(stream);
}
/**
* Serializes an object to bytes.
*
* @return Serialized bytes.
*/
public byte[] serialize() {
return GeneratorUtils.serialize(dataOutputStream -> {
final byte[] signerPublicKeyBytes = this.signerPublicKey.serialize();
dataOutputStream.write(signerPublicKeyBytes, 0, signerPublicKeyBytes.length);
final byte[] signatureBytes = this.signature.serialize();
dataOutputStream.write(signatureBytes, 0, signatureBytes.length);
});
}
}
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