Examples with Request org.fisco.bcos.web3j.protocol.core.Request used on opensource projects

Example 1 with Request

use of org.fisco.bcos.web3j.protocol.core.Request in project web3sdk by FISCO-BCOS.

the class ConnectionCallback method queryNodeVersion.

private void queryNodeVersion(ChannelHandlerContext ctx) throws JsonProcessingException {
    final String host = ChannelHandlerContextHelper.getPeerHost(ctx);
    String seq = UUID.randomUUID().toString().replaceAll("-", "");
    Request<?, NodeVersion> request = new Request<>("getClientVersion", Arrays.asList(), null, NodeVersion.class);
    byte[] payload = ObjectMapperFactory.getObjectMapper().writeValueAsBytes(request);
    String content = new String(payload);
    logger.info(" query node version host: {}, seq: {}, content: {}", host, seq, content);
    BcosMessage bcosMessage = new BcosMessage();
    bcosMessage.setType((short) ChannelMessageType.CHANNEL_RPC_REQUEST.getType());
    bcosMessage.setSeq(seq);
    bcosMessage.setResult(0);
    bcosMessage.setData(payload);
    ByteBuf byteBuf = ctx.alloc().buffer();
    bcosMessage.writeHeader(byteBuf);
    bcosMessage.writeExtra(byteBuf);
    BcosResponseCallback callback = new BcosResponseCallback() {

        @Override
        public void onResponse(BcosResponse response) {
            try {
                if (response.getErrorCode() == ChannelMessageError.MESSAGE_TIMEOUT.getError()) {
                    // The fisco node version number is below 2.1.0 when request timeout
                    ChannelHandlerContextHelper.setProtocolVersion(ctx, EnumChannelProtocolVersion.VERSION_1, "below-2.1.0-timeout");
                    logger.info(" query node version timeout, content: {}", response.getContent());
                    sendUpdateTopicMessage(ctx);
                    queryBlockNumber(ctx);
                    return;
                } else if (response.getErrorCode() != 0) {
                    logger.error(" fisco node version response, code: {}, message: {}", response.getErrorCode(), response.getErrorMessage());
                    throw new ChannelPrococolExceiption(" query node version failed, code: " + response.getErrorCode() + ", message: " + response.getErrorMessage());
                }
                Response<NodeVersion.Version> nodeVersion = ObjectMapperFactory.getObjectMapper().readValue(response.getContent(), NodeVersion.class);
                logger.info(" node: {}, content: {}", nodeVersion.getResult(), response.getContent());
                if (EnumNodeVersion.channelProtocolHandleShakeSupport(nodeVersion.getResult().getSupportedVersion())) {
                    // fisco node support channel protocol handshake, start it
                    logger.info(" support channel handshake node: {}, content: {}", nodeVersion.getResult(), response.getContent());
                    queryChannelProtocolVersion(ctx);
                } else {
                    // default channel protocol
                    ChannelHandlerContextHelper.setProtocolVersion(ctx, EnumChannelProtocolVersion.VERSION_1, nodeVersion.getResult().getSupportedVersion());
                    logger.info(" not support channel handshake set default ,node: {}, content: {}", nodeVersion.getResult(), response.getContent());
                    sendUpdateTopicMessage(ctx);
                    queryBlockNumber(ctx);
                // channelService.getEventLogFilterManager().sendFilter();
                }
            } catch (Exception e) {
                logger.error(" query node version failed, message: {}", e.getMessage());
                ctx.writeAndFlush("").addListener(ChannelFutureListener.CLOSE);
            }
        }
    };
    final BcosResponseCallback callbackInner = callback;
    callback.setTimeout(channelService.getTimeoutHandler().newTimeout(new TimerTask() {

        BcosResponseCallback _callback = callbackInner;

        @Override
        public void run(Timeout timeout) throws Exception {
            // handle timer
            _callback.onTimeout();
            logger.error("queryNodeVersion timeout, seq: {}", bcosMessage.getSeq());
        }
    }, queryNodeVersionTimeoutMS, TimeUnit.MILLISECONDS));
    channelService.getSeq2Callback().put(seq, callback);
    ctx.writeAndFlush(byteBuf);
}

Example 2 with Request

use of org.fisco.bcos.web3j.protocol.core.Request in project web3sdk by FISCO-BCOS.

the class ConnectionCallback method queryBlockNumber.

private void queryBlockNumber(ChannelHandlerContext ctx) throws JsonProcessingException {
    final String host = ChannelHandlerContextHelper.getPeerHost(ctx);
    String seq = channelService.newSeq();
    BcosMessage bcosMessage = new BcosMessage();
    bcosMessage.setType((short) ChannelMessageType.CHANNEL_RPC_REQUEST.getType());
    bcosMessage.setSeq(seq);
    ChannelEthereumService channelEthereumService = new ChannelEthereumService();
    channelEthereumService.setChannelService(channelService);
    Request<Integer, BlockNumber> request = new Request<>("getBlockNumber", Arrays.asList(channelService.getGroupId()), channelEthereumService, BlockNumber.class);
    bcosMessage.setData(ObjectMapperFactory.getObjectMapper().writeValueAsBytes(request));
    ByteBuf byteBuf = ctx.alloc().buffer();
    bcosMessage.writeHeader(byteBuf);
    bcosMessage.writeExtra(byteBuf);
    String content = new String(bcosMessage.getData());
    logger.info(" query block number host: {}, seq: {}, content: {}", host, seq, content);
    channelService.getSeq2Callback().put(seq, new BcosResponseCallback() {

        @Override
        public void onResponse(BcosResponse response) {
            try {
                BlockNumber blockNumber = ObjectMapperFactory.getObjectMapper().readValue(response.getContent(), BlockNumber.class);
                SocketChannel socketChannel = (SocketChannel) ctx.channel();
                InetSocketAddress socketAddress = socketChannel.remoteAddress();
                channelService.getNodeToBlockNumberMap().put(socketAddress.getAddress().getHostAddress() + socketAddress.getPort(), blockNumber.getBlockNumber());
                logger.info(" query blocknumer, host:{}, blockNumber: {} ", host, blockNumber.getBlockNumber());
            } catch (Exception e) {
                logger.error(" query blocknumer failed, host: {}, message: {} ", host, e.getMessage());
                throw new MessageDecodingException(response.getContent());
            }
        }
    });
    ctx.writeAndFlush(byteBuf);
}