io.neow3j.transaction.OracleResponseAttribute Maven / Gradle / Ivy
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package io.neow3j.transaction;
import io.neow3j.protocol.core.response.OracleResponseCode;
import io.neow3j.serialization.BinaryReader;
import io.neow3j.serialization.BinaryWriter;
import io.neow3j.serialization.IOUtils;
import io.neow3j.utils.BigIntegers;
import java.io.IOException;
import java.math.BigInteger;
/**
* A high priority attribute can be used by committee members to prioritize a
* transaction.
*/
public class OracleResponseAttribute extends TransactionAttribute {
/**
* The maximum size of the {@code Result} field.
*/
public final static int MAX_RESULT_SIZE = 0xffff; // 65'535
/**
* The ID of the oracle request.
*
* The ID is represented as an unsigned integer by the Neo node, i.e., its range is [0, 2^64].
*/
public BigInteger id;
/**
* The response code.
*/
public OracleResponseCode code;
/**
* The response data.
*/
public byte[] result;
public OracleResponseAttribute() {
super(TransactionAttributeType.ORACLE_RESPONSE);
}
/**
* Gets the ID of the oracle request/response.
* @return the ID of the oracle request/response.
*/
public BigInteger getId() {
return id;
}
/**
* Gets the response code.
* @return the response code of oracle response.
*/
public OracleResponseCode getCode() {
return code;
}
/**
* Gets the result bytes.
* @return the result bytes of the oracle response.
*/
public byte[] getResult() {
return result;
}
@Override
protected int getSizeWithoutType() {
return 8 // Id: 64 bit, 8 byte
+ 1 // ResponseCode
+ IOUtils.getVarSize(result); //Result
}
@Override
protected void deserializeWithoutType(BinaryReader reader) throws IOException {
// The ID can be bigger than java long.
id = BigIntegers.fromLittleEndianByteArray(reader.readBytes(8));
code = OracleResponseCode.valueOf(reader.readByte());
result = reader.readVarBytes(MAX_RESULT_SIZE);
}
@Override
protected void serializeWithoutType(BinaryWriter writer) throws IOException {
writer.write(BigIntegers.toLittleEndianByteArray(id));
writer.writeByte(code.byteValue());
writer.writeVarBytes(result);
}
}