Examples with WebSocketClient org.web3j.protocol.websocket.WebSocketClient used on opensource projects

Example 1 with WebSocketClient

use of org.web3j.protocol.websocket.WebSocketClient in project besu by hyperledger.

the class BesuNode method checkIfWebSocketEndpointIsAvailable.

private void checkIfWebSocketEndpointIsAvailable(final String url) {
    final WebSocketClient webSocketClient = new WebSocketClient(URI.create(url));
    // Web3j implementation always invoke the listener (even when one hasn't been set). We are using
    // this stub implementation to avoid a NullPointerException.
    webSocketClient.setListener(new WebSocketListener() {

        @Override
        public void onMessage(final String message) {
        // DO NOTHING
        }

        @Override
        public void onError(final Exception e) {
        // DO NOTHING
        }

        @Override
        public void onClose() {
        // DO NOTHING
        }
    });
    // Because we can't trust the connection timeout of the WebSocket client implementation, we are
    // using this approach to verify if the endpoint is enabled.
    webSocketClient.connect();
    try {
        Awaitility.await().atMost(5, TimeUnit.SECONDS).until(webSocketClient::isOpen);
    } catch (final ConditionTimeoutException e) {
        throw new WebsocketNotConnectedException();
    } finally {
        webSocketClient.close();
    }
}

Example 2 with WebSocketClient

use of org.web3j.protocol.websocket.WebSocketClient in project besu by hyperledger.

the class BesuNode method nodeRequests.

private NodeRequests nodeRequests() {
    Optional<WebSocketService> websocketService = Optional.empty();
    if (nodeRequests == null) {
        final Web3jService web3jService;
        if (useWsForJsonRpc) {
            final String url = wsRpcBaseUrl().orElse("ws://" + LOCALHOST + ":" + 8546);
            final Map<String, String> headers = new HashMap<>();
            if (token != null) {
                headers.put("Authorization", "Bearer " + token);
            }
            final WebSocketClient wsClient = new WebSocketClient(URI.create(url), headers);
            web3jService = new WebSocketService(wsClient, false);
            try {
                ((WebSocketService) web3jService).connect();
            } catch (final ConnectException e) {
                throw new RuntimeException(e);
            }
            websocketService = Optional.of((WebSocketService) web3jService);
        } else {
            final String url = jsonRpcBaseUrl().orElse(HTTP + LOCALHOST + ":" + 8545);
            web3jService = new HttpService(url);
            if (token != null) {
                ((HttpService) web3jService).addHeader("Authorization", "Bearer " + token);
            }
        }
        final ConsensusType bftType = getGenesisConfig().map(gc -> gc.toLowerCase().contains("ibft") ? ConsensusType.IBFT2 : ConsensusType.QBFT).orElse(ConsensusType.IBFT2);
        nodeRequests = new NodeRequests(new JsonRpc2_0Web3j(web3jService, 2000, Async.defaultExecutorService()), new CliqueRequestFactory(web3jService), new BftRequestFactory(web3jService, bftType), new PermissioningJsonRpcRequestFactory(web3jService), new AdminRequestFactory(web3jService), new PrivacyRequestFactory(web3jService), new CustomRequestFactory(web3jService), new MinerRequestFactory(web3jService), new TxPoolRequestFactory(web3jService), websocketService, loginRequestFactory());
    }
    return nodeRequests;
}

Example 3 with WebSocketClient

use of org.web3j.protocol.websocket.WebSocketClient in project wuhanchain by BSN-DDC.

the class EventListenerByBlock method getBlockEventByListener.

/**
 * get block event
 *
 * @param startBlockNum blockNumber
 * @return ddc official contract event data
 * @throws Exception
 */
public void getBlockEventByListener(BigInteger startBlockNum, String wsUrl, Map<String, String> httpHeaders) {
    try {
        // webSocketClient
        WebSocketClient webSocketClient = new WebSocketClient(new URI(wsUrl), httpHeaders);
        WebSocketService webSocketService = new WebSocketService(webSocketClient, false);
        webSocketService.connect();
        web3j = Web3j.build(webSocketService);
        // ThreadPool
        executorService = new ThreadPoolExecutor(8, 8, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>(100000), new ThreadPoolExecutor.CallerRunsPolicy());
        // startBlock, endBlock, fullTransactionObjects
        subscribe = web3j.replayPastAndFutureBlocksFlowable(DefaultBlockParameter.valueOf(startBlockNum), true).doOnError(e -> logger.error("doOnError:" + e.getMessage())).subscribe(this::executeBlock, ex -> logger.error("subscribe:" + ex.getMessage()), () -> onCompleted());
        while (true) {
            if (subscriptions) {
                break;
            }
        }
    } catch (Exception e) {
        logger.error("analysisResult:" + e);
    }
}