Java Code Examples for org.web3j.protocol.core.methods.response.EthLog#LogResult

The following examples show how to use org.web3j.protocol.core.methods.response.EthLog#LogResult . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: EventUtils.java From alpha-wallet-android with MIT License

5 votes

public String getTopicVal(EventDefinition ev, EthLog.LogResult ethLog)
{
    String topicVal = "";
    final Event resolverEvent = generateEventFunction(ev);
    final EventValues eventValues = staticExtractEventParameters(resolverEvent, (Log)ethLog.get());
    String filterTopic = ev.getFilterTopicIndex();
    int topicIndex = ev.getTopicIndex(filterTopic);

    topicVal = getValueFromParams(eventValues.getIndexedValues(), topicIndex);

    return topicVal;
}

Example 2

Source File: LogsFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<LogResult> logResults) {
    List<Log> logs = new ArrayList<>(logResults.size());

    for (EthLog.LogResult logResult : logResults) {
        if (!(logResult instanceof EthLog.LogObject)) {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + " required LogObject");
        }

        logs.add(((EthLog.LogObject) logResult).get());
    }

    callback.onEvent(logs);
}

Example 3

Source File: BlockFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<EthLog.LogResult> logResults) {
    for (EthLog.LogResult logResult : logResults) {
        if (logResult instanceof EthLog.Hash) {
            String blockHash = ((EthLog.Hash) logResult).get();
            callback.onEvent(blockHash);
        } else {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + ", required Hash");
        }
    }
}

Example 4

Source File: PendingTransactionFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<EthLog.LogResult> logResults) {
    for (EthLog.LogResult logResult : logResults) {
        if (logResult instanceof EthLog.Hash) {
            String transactionHash = ((EthLog.Hash) logResult).get();
            callback.onEvent(transactionHash);
        } else {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + ", required Hash");
        }
    }
}

Example 5

Source File: CoreIT.java From web3j with Apache License 2.0

5 votes

@Test
public void testEthGetLogs() throws Exception {
    org.web3j.protocol.core.methods.request.EthFilter ethFilter =
            new org.web3j.protocol.core.methods.request.EthFilter(
                    DefaultBlockParameterName.EARLIEST,
                    DefaultBlockParameterName.LATEST,
                    config.validContractAddress());

    ethFilter.addSingleTopic(config.encodedEvent());

    EthLog ethLog = web3j.ethGetLogs(ethFilter).send();
    List<EthLog.LogResult> logs = ethLog.getLogs();
    assertFalse(logs.isEmpty());
}

Example 6

Source File: CoreIT.java From web3j with Apache License 2.0

5 votes

@Test
public void testFiltersByFilterId() throws Exception {
    org.web3j.protocol.core.methods.request.EthFilter ethFilter =
            new org.web3j.protocol.core.methods.request.EthFilter(
                    DefaultBlockParameterName.EARLIEST,
                    DefaultBlockParameterName.LATEST,
                    config.validContractAddress());

    String eventSignature = config.encodedEvent();
    ethFilter.addSingleTopic(eventSignature);

    // eth_newFilter
    EthFilter ethNewFilter = web3j.ethNewFilter(ethFilter).send();
    BigInteger filterId = ethNewFilter.getFilterId();

    // eth_getFilterLogs
    EthLog ethFilterLogs = web3j.ethGetFilterLogs(filterId).send();
    List<EthLog.LogResult> filterLogs = ethFilterLogs.getLogs();
    assertFalse(filterLogs.isEmpty());

    // eth_getFilterChanges - nothing will have changed in this interval
    EthLog ethLog = web3j.ethGetFilterChanges(filterId).send();
    assertTrue(ethLog.getLogs().isEmpty());

    // eth_uninstallFilter
    EthUninstallFilter ethUninstallFilter = web3j.ethUninstallFilter(filterId).send();
    assertTrue(ethUninstallFilter.isUninstalled());
}

Example 7

Source File: EventFilterIT.java From web3j with Apache License 2.0

5 votes

private List<EthLog.LogResult> createFilterForEvent(
        String encodedEventSignature, String contractAddress) throws Exception {
    EthFilter ethFilter =
            new EthFilter(
                    DefaultBlockParameterName.EARLIEST,
                    DefaultBlockParameterName.LATEST,
                    contractAddress);

    ethFilter.addSingleTopic(encodedEventSignature);

    EthLog ethLog = web3j.ethGetLogs(ethFilter).send();
    return ethLog.getLogs();
}

Example 8

Source File: BlocksFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<LogResult> logResults) {
    List<String> blockHashes = new ArrayList<>(logResults.size());

    for (EthLog.LogResult logResult : logResults) {
        if (!(logResult instanceof EthLog.Hash)) {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + ", required Hash");
        }

        blockHashes.add(((EthLog.Hash) logResult).get());
    }

    callback.onEvent(blockHashes);
}

Example 9

Source File: LogFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<EthLog.LogResult> logResults) {
    for (EthLog.LogResult logResult : logResults) {
        if (logResult instanceof EthLog.LogObject) {
            Log log = ((EthLog.LogObject) logResult).get();
            callback.onEvent(log);
        } else {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + " required LogObject");
        }
    }
}

Example 10

Source File: FilterTester.java From web3j with Apache License 2.0

5 votes

List createExpected(EthLog ethLog) {
    List<EthLog.LogResult> logResults = ethLog.getLogs();
    if (logResults.isEmpty()) {
        fail("Results cannot be empty");
    }

    return ethLog.getLogs().stream().map(t -> t.get()).collect(Collectors.toList());
}

Example 11

Source File: FilterTester.java From etherscan-explorer with GNU General Public License v3.0

5 votes

List createExpected(EthLog ethLog) {
    List<EthLog.LogResult> logResults = ethLog.getLogs();
    if (logResults.isEmpty()) {
        fail("Results cannot be empty");
    }

    return ethLog.getLogs().stream()
            .map(t -> t.get()).collect(Collectors.toList());
}

Example 12

Source File: LogFilter.java From etherscan-explorer with GNU General Public License v3.0

5 votes

@Override
void process(List<EthLog.LogResult> logResults) {
    for (EthLog.LogResult logResult : logResults) {
        if (logResult instanceof EthLog.LogObject) {
            Log log = ((EthLog.LogObject) logResult).get();
            callback.onEvent(log);
        } else {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + " required LogObject");
        }
    }
}

Example 13

Source File: BlockFilter.java From etherscan-explorer with GNU General Public License v3.0

5 votes

@Override
void process(List<EthLog.LogResult> logResults) {
    for (EthLog.LogResult logResult : logResults) {
        if (logResult instanceof EthLog.Hash) {
            String blockHash = ((EthLog.Hash) logResult).get();
            callback.onEvent(blockHash);
        } else {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + ", required Hash");
        }
    }
}

Example 14

Source File: PendingTransactionsFilter.java From web3j with Apache License 2.0

5 votes

@Override
protected void process(List<EthLog.LogResult> logResults) {
    List<String> logs = new ArrayList<>(logResults.size());

    for (EthLog.LogResult logResult : logResults) {
        if (!(logResult instanceof EthLog.Hash)) {
            throw new FilterException(
                    "Unexpected result type: " + logResult.get() + ", required Hash");
        }

        logs.add(((EthLog.Hash) logResult).get());
    }

    callback.onEvent(logs);
}

Example 15

Source File: CoreIT.java From etherscan-explorer with GNU General Public License v3.0

5 votes

@Test
public void testEthGetLogs() throws Exception {
    org.web3j.protocol.core.methods.request.EthFilter ethFilter =
            new org.web3j.protocol.core.methods.request.EthFilter(
            DefaultBlockParameterName.EARLIEST,
            DefaultBlockParameterName.LATEST,
            config.validContractAddress()
    );

    ethFilter.addSingleTopic(config.encodedEvent());

    EthLog ethLog = web3j.ethGetLogs(ethFilter).send();
    List<EthLog.LogResult> logs = ethLog.getLogs();
    assertFalse(logs.isEmpty());
}

Example 16

Source File: CoreIT.java From etherscan-explorer with GNU General Public License v3.0

5 votes

@Test
public void testFiltersByFilterId() throws Exception {
    org.web3j.protocol.core.methods.request.EthFilter ethFilter =
            new org.web3j.protocol.core.methods.request.EthFilter(
            DefaultBlockParameterName.EARLIEST,
            DefaultBlockParameterName.LATEST,
            config.validContractAddress());

    String eventSignature = config.encodedEvent();
    ethFilter.addSingleTopic(eventSignature);

    // eth_newFilter
    EthFilter ethNewFilter = web3j.ethNewFilter(ethFilter).send();
    BigInteger filterId = ethNewFilter.getFilterId();

    // eth_getFilterLogs
    EthLog ethFilterLogs = web3j.ethGetFilterLogs(filterId).send();
    List<EthLog.LogResult> filterLogs = ethFilterLogs.getLogs();
    assertFalse(filterLogs.isEmpty());

    // eth_getFilterChanges - nothing will have changed in this interval
    EthLog ethLog = web3j.ethGetFilterChanges(filterId).send();
    assertTrue(ethLog.getLogs().isEmpty());

    // eth_uninstallFilter
    EthUninstallFilter ethUninstallFilter = web3j.ethUninstallFilter(filterId).send();
    assertTrue(ethUninstallFilter.isUninstalled());
}

Example 17

Source File: EventFilterIT.java From etherscan-explorer with GNU General Public License v3.0

5 votes

private List<EthLog.LogResult> createFilterForEvent(
        String encodedEventSignature, String contractAddress) throws Exception {
    EthFilter ethFilter = new EthFilter(
            DefaultBlockParameterName.EARLIEST,
            DefaultBlockParameterName.LATEST,
            contractAddress
    );

    ethFilter.addSingleTopic(encodedEventSignature);

    EthLog ethLog = web3j.ethGetLogs(ethFilter).send();
    return ethLog.getLogs();
}

Example 18

Source File: EventFilterIT.java From web3j with Apache License 2.0

4 votes

@Test
public void testEventFilter() throws Exception {
    unlockAccount();

    Function function = createFibonacciFunction();
    String encodedFunction = FunctionEncoder.encode(function);

    BigInteger gas = estimateGas(encodedFunction);
    String transactionHash = sendTransaction(ALICE, CONTRACT_ADDRESS, gas, encodedFunction);

    TransactionReceipt transactionReceipt = waitForTransactionReceipt(transactionHash);

    assertFalse(gas.equals(transactionReceipt.getGasUsed()));

    List<Log> logs = transactionReceipt.getLogs();
    assertFalse(logs.isEmpty());

    Log log = logs.get(0);

    List<String> topics = log.getTopics();
    assertEquals(topics.size(), (1));

    Event event =
            new Event(
                    "Notify",
                    Arrays.asList(
                            new TypeReference<Uint256>() {}, new TypeReference<Uint256>() {}));

    // check function signature - we only have a single topic our event signature,
    // there are no indexed parameters in this example
    String encodedEventSignature = EventEncoder.encode(event);
    assertEquals(topics.get(0), (encodedEventSignature));

    // verify our two event parameters
    List<Type> results =
            FunctionReturnDecoder.decode(log.getData(), event.getNonIndexedParameters());
    assertEquals(
            results,
            (Arrays.asList(
                    new Uint256(BigInteger.valueOf(7)), new Uint256(BigInteger.valueOf(13)))));

    // finally check it shows up in the event filter
    List<EthLog.LogResult> filterLogs =
            createFilterForEvent(encodedEventSignature, CONTRACT_ADDRESS);
    assertFalse(filterLogs.isEmpty());
}

Example 19

Source File: Filter.java From etherscan-explorer with GNU General Public License v3.0

votes

abstract void process(List<EthLog.LogResult> logResults);

Example 20

Source File: Filter.java From web3j with Apache License 2.0

votes

protected abstract void process(List<EthLog.LogResult> logResults);