org.fisco.bcos.sdk.v3.contract.Contract Maven / Gradle / Ivy
/*
* Copyright 2014-2020 [fisco-dev]
*
* 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 org.fisco.bcos.sdk.v3.contract;
import static org.fisco.bcos.sdk.v3.client.protocol.model.TransactionAttribute.LIQUID_CREATE;
import static org.fisco.bcos.sdk.v3.client.protocol.model.TransactionAttribute.LIQUID_SCALE_CODEC;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;
import org.fisco.bcos.sdk.jni.common.JniException;
import org.fisco.bcos.sdk.jni.utilities.tx.TxPair;
import org.fisco.bcos.sdk.v3.client.Client;
import org.fisco.bcos.sdk.v3.client.protocol.model.TransactionAttribute;
import org.fisco.bcos.sdk.v3.client.protocol.response.Call;
import org.fisco.bcos.sdk.v3.codec.ContractCodec;
import org.fisco.bcos.sdk.v3.codec.ContractCodecException;
import org.fisco.bcos.sdk.v3.codec.EventEncoder;
import org.fisco.bcos.sdk.v3.codec.EventValues;
import org.fisco.bcos.sdk.v3.codec.FunctionEncoderInterface;
import org.fisco.bcos.sdk.v3.codec.FunctionReturnDecoderInterface;
import org.fisco.bcos.sdk.v3.codec.datatypes.Address;
import org.fisco.bcos.sdk.v3.codec.datatypes.Array;
import org.fisco.bcos.sdk.v3.codec.datatypes.Event;
import org.fisco.bcos.sdk.v3.codec.datatypes.Function;
import org.fisco.bcos.sdk.v3.codec.datatypes.Type;
import org.fisco.bcos.sdk.v3.codec.datatypes.TypeReference;
import org.fisco.bcos.sdk.v3.crypto.CryptoSuite;
import org.fisco.bcos.sdk.v3.crypto.keypair.CryptoKeyPair;
import org.fisco.bcos.sdk.v3.eventsub.EventSubCallback;
import org.fisco.bcos.sdk.v3.eventsub.EventSubParams;
import org.fisco.bcos.sdk.v3.eventsub.EventSubscribe;
import org.fisco.bcos.sdk.v3.model.Response;
import org.fisco.bcos.sdk.v3.model.TransactionReceipt;
import org.fisco.bcos.sdk.v3.model.TransactionReceiptStatus;
import org.fisco.bcos.sdk.v3.model.callback.CallCallback;
import org.fisco.bcos.sdk.v3.model.callback.RespCallback;
import org.fisco.bcos.sdk.v3.model.callback.TransactionCallback;
import org.fisco.bcos.sdk.v3.transaction.codec.decode.ReceiptParser;
import org.fisco.bcos.sdk.v3.transaction.manager.TransactionProcessor;
import org.fisco.bcos.sdk.v3.transaction.manager.TransactionProcessorFactory;
import org.fisco.bcos.sdk.v3.transaction.manager.transactionv1.DefaultTransactionManager;
import org.fisco.bcos.sdk.v3.transaction.manager.transactionv1.TransactionManager;
import org.fisco.bcos.sdk.v3.transaction.manager.transactionv1.dto.AbiEncodedRequest;
import org.fisco.bcos.sdk.v3.transaction.manager.transactionv1.utils.TransactionRequestBuilder;
import org.fisco.bcos.sdk.v3.transaction.model.dto.CallRequest;
import org.fisco.bcos.sdk.v3.transaction.model.exception.ContractException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Contract help manage all operations including deploy, send transaction, call contract, and
* subscribe event of one specific contract. It is inherited by precompiled contracts and contract
* java wrappers.
*/
public class Contract {
protected static Logger logger = LoggerFactory.getLogger(Contract.class);
protected final String contractBinary;
protected String contractAddress;
// transactionReceipt after deploying the contract
protected TransactionReceipt deployReceipt;
protected TransactionProcessor transactionProcessor;
// v2 transaction
protected TransactionManager transactionManager = null;
protected final Client client;
public static final String FUNC_DEPLOY = "deploy";
protected final FunctionEncoderInterface functionEncoder;
protected final FunctionReturnDecoderInterface functionReturnDecoder;
protected final CryptoKeyPair credential;
protected final CryptoSuite cryptoSuite;
protected final EventEncoder eventEncoder;
private final EventSubscribe eventSubscribe;
private boolean enableDAG = false;
/**
* Constructor
*
* @param contractBinary the contract binary code hex string
* @param contractAddress the contract address
* @param client a Client object
* @param credential key pair to use when sign transaction
* @param transactionProcessor TransactionProcessor object
*/
protected Contract(
String contractBinary,
String contractAddress,
Client client,
CryptoKeyPair credential,
TransactionProcessor transactionProcessor) {
this.contractBinary = contractBinary;
this.contractAddress = contractAddress;
this.client = client;
this.transactionProcessor = transactionProcessor;
this.credential = credential;
this.cryptoSuite = client.getCryptoSuite();
this.functionEncoder =
client.isWASM()
? new org.fisco.bcos.sdk.v3.codec.scale.FunctionEncoder(
cryptoSuite.getHashImpl())
: new org.fisco.bcos.sdk.v3.codec.abi.FunctionEncoder(
cryptoSuite.getHashImpl());
this.functionReturnDecoder =
client.isWASM()
? new org.fisco.bcos.sdk.v3.codec.scale.FunctionReturnDecoder()
: new org.fisco.bcos.sdk.v3.codec.abi.FunctionReturnDecoder();
this.eventEncoder = new EventEncoder(cryptoSuite.getHashImpl());
try {
this.eventSubscribe = EventSubscribe.build(client);
} catch (JniException e) {
throw new RuntimeException(e);
}
}
/**
* Constructor, auto create a TransactionProcessor object
*
* @param contractBinary the contract binary code hex string
* @param contractAddress the contract address
* @param client a Client object to send requests
* @param credential key pair to use when sign transaction
*/
protected Contract(
String contractBinary,
String contractAddress,
Client client,
CryptoKeyPair credential) {
this(
contractBinary,
contractAddress,
client,
credential,
TransactionProcessorFactory.createTransactionProcessor(client, credential));
}
protected Contract(
String contractBinary,
String contractAddress,
Client client,
TransactionManager transactionManager) {
this.contractBinary = contractBinary;
this.contractAddress = contractAddress;
this.client = client;
this.transactionManager = transactionManager;
this.credential = client.getCryptoSuite().getCryptoKeyPair();
this.cryptoSuite = client.getCryptoSuite();
this.functionEncoder =
client.isWASM()
? new org.fisco.bcos.sdk.v3.codec.scale.FunctionEncoder(
cryptoSuite.getHashImpl())
: new org.fisco.bcos.sdk.v3.codec.abi.FunctionEncoder(
cryptoSuite.getHashImpl());
this.functionReturnDecoder =
client.isWASM()
? new org.fisco.bcos.sdk.v3.codec.scale.FunctionReturnDecoder()
: new org.fisco.bcos.sdk.v3.codec.abi.FunctionReturnDecoder();
this.eventEncoder = new EventEncoder(cryptoSuite.getHashImpl());
try {
this.eventSubscribe = EventSubscribe.build(client);
} catch (JniException e) {
throw new RuntimeException(e);
}
}
public String getContractAddress() {
return this.contractAddress;
}
public void setContractAddress(String contractAddress) {
this.contractAddress = contractAddress;
}
public TransactionReceipt getDeployReceipt() {
return this.deployReceipt;
}
public void setDeployReceipt(TransactionReceipt deployReceipt) {
this.deployReceipt = deployReceipt;
}
public TransactionProcessor getTransactionProcessor() {
return this.transactionProcessor;
}
public void setTransactionProcessor(TransactionProcessor transactionProcessor) {
this.transactionProcessor = transactionProcessor;
}
public String getCurrentExternalAccountAddress() {
return this.credential.getAddress();
}
public boolean isEnableDAG() {
return enableDAG;
}
public void setEnableDAG(boolean enableDAG) {
this.enableDAG = enableDAG;
}
public void setTransactionManager(TransactionManager transactionManager) {
this.transactionManager = transactionManager;
}
/**
* Deploy contract
*
* @param type class type
* @param client a Client object to send requests
* @param credential key pair to use when sign transaction
* @param abi ABI json string
* @param binary the contract binary code hex string
* @param encodedConstructor constructor params
* @param path bfs path, this param only use in wasm vm
* @param a smart contract object extends Contract
* @return T type smart contract
* @throws ContractException throws when deploy failed
*/
protected static T deploy(
Class type,
Client client,
CryptoKeyPair credential,
String binary,
String abi,
byte[] encodedConstructor,
String path)
throws ContractException {
try {
Constructor constructor =
type.getDeclaredConstructor(String.class, Client.class, CryptoKeyPair.class);
constructor.setAccessible(true);
T contract = constructor.newInstance(null, client, credential);
ContractCodec codec = new ContractCodec(contract.cryptoSuite, client.isWASM());
if (client.isWASM()) {
// NOTE: it should set address first, contract.executeDeployTransaction will use it
// as 'to'
contract.setContractAddress(path);
}
TransactionReceipt transactionReceipt =
contract.executeDeployTransaction(
codec.encodeConstructorFromBytes(binary, encodedConstructor), abi);
String contractAddress = transactionReceipt.getContractAddress();
if (contractAddress == null
|| transactionReceipt.getStatus()
!= TransactionReceiptStatus.Success.getCode()) {
// parse the receipt
ReceiptParser.getErrorStatus(transactionReceipt);
}
contract.setContractAddress(client.isWASM() ? path : contractAddress);
contract.setDeployReceipt(transactionReceipt);
return contract;
} catch (InstantiationException
| InvocationTargetException
| NoSuchMethodException
| IllegalAccessException
| ContractCodecException e) {
throw new ContractException("deploy contract failed, error info: " + e.getMessage(), e);
}
}
protected static T deploy(
Class type,
Client client,
CryptoKeyPair credential,
String binary,
String abi,
byte[] encodedConstructor,
String path,
BigInteger value)
throws ContractException {
try {
Constructor constructor =
type.getDeclaredConstructor(String.class, Client.class, CryptoKeyPair.class);
constructor.setAccessible(true);
T contract = constructor.newInstance(null, client, credential);
ContractCodec codec = new ContractCodec(contract.cryptoSuite, client.isWASM());
if (client.isWASM()) {
// NOTE: it should set address first, contract.executeDeployTransaction will use it
// as 'to'
contract.setContractAddress(path);
}
TransactionReceipt transactionReceipt =
contract.executeDeployTransaction(
codec.encodeConstructorFromBytes(binary, encodedConstructor),
abi,
value);
String contractAddress = transactionReceipt.getContractAddress();
if (contractAddress == null
|| transactionReceipt.getStatus()
!= TransactionReceiptStatus.Success.getCode()) {
// parse the receipt
ReceiptParser.getErrorStatus(transactionReceipt);
}
contract.setContractAddress(client.isWASM() ? path : contractAddress);
contract.setDeployReceipt(transactionReceipt);
return contract;
} catch (InstantiationException
| InvocationTargetException
| NoSuchMethodException
| IllegalAccessException
| ContractCodecException e) {
throw new ContractException("deploy contract failed, error info: " + e.getMessage(), e);
}
}
private int generateTransactionAttribute(String funcName) {
int attribute = 0;
if (client.isWASM()) {
attribute = LIQUID_SCALE_CODEC;
if (Objects.equals(funcName, FUNC_DEPLOY)) {
attribute |= LIQUID_CREATE;
}
} else {
attribute |= TransactionAttribute.EVM_ABI_CODEC;
}
return attribute;
}
private List executeCall(Function function) throws ContractException {
byte[] encodedFunctionData = this.functionEncoder.encode(function);
Call response;
if (transactionManager != null) {
response = transactionManager.sendCall(this.contractAddress, encodedFunctionData);
} else {
CallRequest callRequest =
new CallRequest(
this.credential.getAddress(),
this.contractAddress,
encodedFunctionData);
response = this.transactionProcessor.executeCall(callRequest);
}
// get value from the response
String callResult = response.getCallResult().getOutput();
if (response.getCallResult().getStatus() != 0) {
ContractException contractException =
new ContractException(
"execute "
+ function.getName()
+ " failed for non-zero status "
+ response.getCallResult().getStatus(),
response.getCallResult());
logger.warn(
"status of executeCall is non-success, status: {}, callResult: {}",
response.getCallResult().getStatus(),
response.getCallResult());
throw ReceiptParser.parseExceptionCall(contractException);
}
try {
return functionReturnDecoder.decode(callResult, function.getOutputParameters());
} catch (Exception e) {
throw new ContractException(
"decode callResult failed, error info: " + e.getMessage(),
e,
response.getCallResult());
}
}
protected void asyncExecuteCall(Function function, CallCallback callback) {
if (transactionManager != null) {
asyncExecuteCallByTransactionManager(function, callback);
return;
}
byte[] encodedFunctionData = this.functionEncoder.encode(function);
CallRequest callRequest =
new CallRequest(
this.credential.getAddress(), this.contractAddress, encodedFunctionData);
transactionProcessor.asyncExecuteCall(
callRequest,
new RespCallback() {
@Override
public void onResponse(Call response) {
String callResult = response.getCallResult().getOutput();
if (response.getCallResult().getStatus() != 0) {
logger.warn(
"status of executeCall is non-success, status: {}, callResult: {}",
response.getCallResult().getStatus(),
response.getCallResult());
callback.onError(
new Response(
response.getCallResult().getStatus(),
"execute "
+ function.getName()
+ " failed for non-zero status "
+ response.getCallResult().getStatus()));
return;
}
List result;
try {
result =
functionReturnDecoder.decode(
callResult, function.getOutputParameters());
} catch (Exception e) {
callback.onError(
new Response(
-1,
"decode callResult failed, error info: "
+ e.getMessage()));
return;
}
callback.onResponse(result);
}
@Override
public void onError(Response errorResponse) {
callback.onError(errorResponse);
}
});
}
protected void asyncExecuteCallByTransactionManager(Function function, CallCallback callback) {
transactionManager.asyncSendCall(
this.contractAddress,
this.functionEncoder.encode(function),
new RespCallback() {
@Override
public void onResponse(Call call) {
String callResult = call.getCallResult().getOutput();
if (call.getCallResult().getStatus() != 0) {
logger.warn(
"status of executeCall is non-success, status: {}, callResult: {}",
call.getCallResult().getStatus(),
call.getCallResult());
callback.onError(
new Response(
call.getCallResult().getStatus(),
"execute "
+ function.getName()
+ " failed for non-zero status "
+ call.getCallResult().getStatus()));
return;
}
List result;
try {
result =
functionReturnDecoder.decode(
callResult, function.getOutputParameters());
} catch (Exception e) {
callback.onError(
new Response(
-1,
"decode callResult failed, error info: "
+ e.getMessage()));
return;
}
callback.onResponse(result);
}
@Override
public void onError(Response errorResponse) {
callback.onError(errorResponse);
}
});
}
protected R executeCallWithSingleValueReturn(
Function function, Class returnType) throws ContractException {
T result;
List values = this.executeCall(function);
if (!values.isEmpty()) {
result = (T) values.get(0);
} else {
throw new ContractException(
"executeCall for function "
+ function.getName()
+ " failed for empty returned value from the contract "
+ this.contractAddress);
}
// cast the value into returnType
Object value = result.getValue();
if (returnType.isAssignableFrom(value.getClass())) {
return (R) value;
} else if (returnType.isAssignableFrom(result.getClass())) {
return (R) result;
} else if (result.getClass().equals(Address.class) && returnType.equals(String.class)) {
return (R) result.toString(); // cast isn't necessary
} else {
throw new ContractException(
"Unable convert response "
+ value
+ " to expected type "
+ returnType.getSimpleName());
}
}
protected List executeCallWithMultipleValueReturn(Function function)
throws ContractException {
return this.executeCall(function);
}
protected int generateTxAttributeWithDagFlag(String functionName, int dagAttribute) {
int txAttribute = generateTransactionAttribute(functionName);
int dagFlag = dagAttribute;
// enforce dag
if (enableDAG) {
dagFlag = TransactionAttribute.DAG;
}
txAttribute |= dagFlag;
return txAttribute;
}
protected String asyncExecuteTransaction(
byte[] data, String funName, TransactionCallback callback, int dagAttribute) {
if (transactionManager != null) {
try {
return transactionManager.asyncSendTransaction(
this.contractAddress, data, BigInteger.ZERO, callback);
} catch (JniException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
return null;
}
}
int txAttribute = generateTxAttributeWithDagFlag(funName, dagAttribute);
return this.transactionProcessor.sendTransactionAsync(
this.contractAddress, data, this.credential, txAttribute, callback);
}
protected String asyncExecuteTransaction(
byte[] data,
String funName,
TransactionCallback callback,
int dagAttribute,
BigInteger value) {
if (transactionManager != null) {
try {
return transactionManager.asyncSendTransaction(
this.contractAddress, data, value, callback);
} catch (JniException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
return null;
}
}
int txAttribute = generateTxAttributeWithDagFlag(funName, dagAttribute);
return this.transactionProcessor.sendTransactionAsync(
this.contractAddress, data, this.credential, txAttribute, callback);
}
protected String asyncExecuteTransaction(Function function, TransactionCallback callback) {
return this.asyncExecuteTransaction(
this.functionEncoder.encode(function),
function.getName(),
callback,
function.getTransactionAttribute(),
function.getValue());
}
protected String asyncExecuteTransaction(
FunctionWrapper functionWrapper, TransactionCallback callback) {
try {
TransactionManager txManager = this.transactionManager;
if (txManager == null) {
txManager = new DefaultTransactionManager(client);
}
AbiEncodedRequest abiEncodedRequest =
new TransactionRequestBuilder()
.setTo(this.contractAddress)
.setNonce(functionWrapper.getNonce())
.setBlockLimit(functionWrapper.getBlockLimit())
.setExtension(functionWrapper.getExtension())
.setValue(
functionWrapper.getValue() != null
? functionWrapper.getValue().toBigIntegerExact()
: null)
.buildAbiEncodedRequest(
this.functionEncoder.encode(functionWrapper.getFunction()));
return txManager.asyncSendTransaction(abiEncodedRequest, callback);
} catch (JniException | ContractException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
}
return null;
}
protected TransactionReceipt executeTransaction(Function function) {
if (transactionManager != null) {
TransactionReceipt transactionReceipt = null;
try {
transactionReceipt =
transactionManager.sendTransaction(
this.contractAddress,
this.functionEncoder.encode(function),
function.getValue());
} catch (JniException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
}
return transactionReceipt;
}
int txAttribute =
generateTxAttributeWithDagFlag(
function.getName(), function.getTransactionAttribute());
return this.transactionProcessor.sendTransactionAndGetReceipt(
this.contractAddress,
this.functionEncoder.encode(function),
this.credential,
txAttribute);
}
protected TransactionReceipt executeTransaction(FunctionWrapper functionWrapper) {
TransactionManager txManager = this.transactionManager;
if (txManager == null) {
txManager = new DefaultTransactionManager(client);
}
TransactionReceipt transactionReceipt = null;
try {
AbiEncodedRequest abiEncodedRequest =
new TransactionRequestBuilder()
.setTo(this.contractAddress)
.setNonce(functionWrapper.getNonce())
.setBlockLimit(functionWrapper.getBlockLimit())
.setExtension(functionWrapper.getExtension())
.setValue(
functionWrapper.getValue() != null
? functionWrapper.getValue().toBigIntegerExact()
: null)
.buildAbiEncodedRequest(
this.functionEncoder.encode(functionWrapper.getFunction()));
transactionReceipt = txManager.sendTransaction(abiEncodedRequest);
} catch (JniException | ContractException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
}
return transactionReceipt;
}
protected TransactionReceipt executeDeployTransaction(byte[] data, String abi) {
if (transactionManager != null) {
TransactionReceipt transactionReceipt = null;
try {
transactionReceipt =
this.transactionManager.sendTransaction(
this.contractAddress, data, BigInteger.ZERO, abi, true);
} catch (JniException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
}
return transactionReceipt;
}
int txAttribute = generateTxAttributeWithDagFlag(Contract.FUNC_DEPLOY, 0);
return this.transactionProcessor.deployAndGetReceipt(
this.contractAddress, data, abi, this.credential, txAttribute);
}
protected TransactionReceipt executeDeployTransaction(
byte[] data, String abi, BigInteger value) {
if (transactionManager != null) {
TransactionReceipt transactionReceipt = null;
try {
transactionReceipt =
this.transactionManager.sendTransaction(
this.contractAddress, data, value, abi, true);
} catch (JniException e) {
logger.error("sendTransaction failed, error info: {}", e.getMessage(), e);
}
return transactionReceipt;
}
int txAttribute = generateTxAttributeWithDagFlag(Contract.FUNC_DEPLOY, 0);
return this.transactionProcessor.deployAndGetReceipt(
this.contractAddress, data, abi, this.credential, txAttribute);
}
/** Adds a log field to {@link EventValues}. */
public static class EventValuesWithLog {
private final EventValues eventValues;
private final TransactionReceipt.Logs log;
private EventValuesWithLog(EventValues eventValues, TransactionReceipt.Logs log) {
this.eventValues = eventValues;
this.log = log;
}
public List getIndexedValues() {
return this.eventValues.getIndexedValues();
}
public List getNonIndexedValues() {
return this.eventValues.getNonIndexedValues();
}
public TransactionReceipt.Logs getLog() {
return this.log;
}
}
protected String createSignedTransaction(Function function) {
if (transactionManager != null) {
try {
byte[] methodId =
functionEncoder.buildMethodId(
FunctionEncoderInterface.buildMethodSignature(
function.getName(), function.getInputParameters()));
return transactionManager.createSignedTransaction(
this.contractAddress,
this.functionEncoder.encode(function),
function.getValue(),
transactionManager.getGasProvider().getGasPrice(methodId),
transactionManager.getGasProvider().getGasLimit(methodId),
client.getBlockLimit(),
"",
false);
} catch (JniException e) {
logger.error("createSignedTransaction failed, error info: {}", e.getMessage(), e);
return null;
}
}
int txAttribute =
generateTxAttributeWithDagFlag(
function.getName(), function.getTransactionAttribute());
TxPair txPair =
this.transactionProcessor.createSignedTransaction(
this.contractAddress,
this.functionEncoder.encode(function),
this.credential,
txAttribute);
return txPair.getSignedTx();
}
public void subscribeEvent(EventSubParams params, EventSubCallback callback) {
this.eventSubscribe.subscribeEvent(params, callback);
}
public void subscribeEvent(String topic0, EventSubCallback callback) {
subscribeEvent(topic0, BigInteger.valueOf(-1), BigInteger.valueOf(-1), callback);
}
public void subscribeEvent(
String topic0, BigInteger fromBlock, BigInteger toBlock, EventSubCallback callback) {
subscribeEvent(
fromBlock,
toBlock,
Collections.singletonList(Collections.singletonList(topic0)),
callback);
}
public void subscribeEvent(
String topic0,
List otherTopics,
BigInteger fromBlock,
BigInteger toBlock,
EventSubCallback callback) {
List> topics = new ArrayList<>();
topics.add(Collections.singletonList(topic0));
for (String otherTopic : otherTopics) {
topics.add(Collections.singletonList(otherTopic));
}
subscribeEvent(fromBlock, toBlock, topics, callback);
}
public void subscribeEvent(
BigInteger fromBlock,
BigInteger toBlock,
List> topics,
EventSubCallback callback) {
EventSubParams eventSubParams = new EventSubParams();
// self address
eventSubParams.addAddress(getContractAddress());
eventSubParams.setFromBlock(fromBlock);
eventSubParams.setToBlock(toBlock);
for (int i = 0; i < topics.size(); i++) {
for (String topic : topics.get(i)) {
eventSubParams.addTopic(i, topic);
}
}
subscribeEvent(eventSubParams, callback);
}
public static EventValues staticExtractEventParameters(
EventEncoder eventEncoder,
FunctionReturnDecoderInterface functionReturnDecoder,
Event event,
TransactionReceipt.Logs log) {
List topics = log.getTopics();
String encodedEventSignature = eventEncoder.encode(event);
if (!topics.get(0).equals(encodedEventSignature)) {
return null;
}
List indexedValues = new ArrayList<>();
List nonIndexedValues =
functionReturnDecoder.decode(log.getData(), event.getNonIndexedParameters());
List> indexedParameters = event.getIndexedParameters();
for (int i = 0; i < indexedParameters.size(); i++) {
Type value =
functionReturnDecoder.decodeIndexedValue(
topics.get(i + 1), indexedParameters.get(i));
indexedValues.add(value);
}
return new EventValues(indexedValues, nonIndexedValues);
}
protected EventValues extractEventParameters(Event event, TransactionReceipt.Logs log) {
return staticExtractEventParameters(
this.eventEncoder, this.functionReturnDecoder, event, log);
}
protected List extractEventParameters(
Event event, TransactionReceipt transactionReceipt) {
return transactionReceipt.getLogEntries().stream()
.map(log -> this.extractEventParameters(event, log))
.filter(Objects::nonNull)
.collect(Collectors.toList());
}
protected EventValuesWithLog extractEventParametersWithLog(
Event event, TransactionReceipt.Logs log) {
final EventValues eventValues = this.extractEventParameters(event, log);
return (eventValues == null) ? null : new EventValuesWithLog(eventValues, log);
}
protected List extractEventParametersWithLog(
Event event, TransactionReceipt transactionReceipt) {
return transactionReceipt.getLogEntries().stream()
.map(log -> this.extractEventParametersWithLog(event, log))
.filter(Objects::nonNull)
.collect(Collectors.toList());
}
protected List extractEventParametersWithLog(
Event event, List logs) {
return logs.stream()
.map(log -> this.extractEventParametersWithLog(event, log))
.filter(Objects::nonNull)
.collect(Collectors.toList());
}
public static List convertToNative(List arr) {
List out = new ArrayList();
for (S s : arr) {
if (Array.class.isAssignableFrom(s.getClass())) {
out.add((T) convertToNative((List) ((Array) s).getValue()));
} else {
out.add((T) s.getValue());
}
}
return out;
}
}
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