com.klaytn.caver.account.AccountKeyFail Maven / Gradle / Ivy
/*
* Copyright 2020 The caver-java Authors
*
* Licensed under the Apache License, Version 2.0 (the “License”);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an “AS IS” BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.klaytn.caver.account;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import org.web3j.utils.Numeric;
import java.io.IOException;
import java.util.Arrays;
/**
* AccountKeyFail is used for smart contract accounts so that a transaction sent from
* the smart contract account always fails.
* If an account has the key AccountKeyFail, the tx validation process always fails.
*/
@JsonSerialize(using = AccountKeyFail.AccountKeyFailSerializer.class)
public class AccountKeyFail implements IAccountKey{
/**
* AccountKeyFail's RLP-Encoded data
*/
private static final byte[] RLP = new byte[]{(byte) 0x03, (byte) 0xc0};
/**
* AccountKeyFail's Type attribute.
*/
private static final String TYPE = "0x03";
/**
* Creates an AccountKeyFail instance.
*/
public AccountKeyFail() {
}
/**
* Decodes a RLP-encoded AccountKeyFail string
* @param rlpEncodedKey RLP-encoded AccountKeyFail string
* @return AccountKeyFail
*/
public static AccountKeyFail decode(String rlpEncodedKey) {
return decode(Numeric.hexStringToByteArray(rlpEncodedKey));
}
/**
* Decodes a RLP-encoded AccountKeyFail byte array
* @param rlpEncodedKey RLP-encoded AccountKeyFail byte array
* @return AccountKeyFail
*/
public static AccountKeyFail decode(byte[] rlpEncodedKey) {
if(!Arrays.equals(rlpEncodedKey, RLP)) {
throw new RuntimeException("Invalid RLP-encoded account key String");
}
return new AccountKeyFail();
}
/**
* Encodes a AccountKeyFail Object by RLP-Encoding method.
* @return RLP-encoded AccountKeyFail String
*/
@Override
public String getRLPEncoding() {
return Numeric.toHexString(RLP);
}
/**
* Returns an AccountKeyFail's type attribute
* @return AccountKeyFail's type attribute
*/
public static String getType() {
return TYPE;
}
/**
* Serialize class to AccountKeyFail object into JSON.
*/
public static class AccountKeyFailSerializer extends JsonSerializer {
@Override
public void serialize(AccountKeyFail value, JsonGenerator gen, SerializerProvider serializers) throws IOException, JsonProcessingException {
gen.writeStartObject();
gen.writeFieldName("keyType");
gen.writeNumber(Numeric.toBigInt(getType()));
gen.writeFieldName("key");
gen.writeStartObject();
gen.writeEndObject();
gen.writeEndObject();
}
}
}