Package com.alibaba.otter.canal.protocol.CanalPacket

Examples of com.alibaba.otter.canal.protocol.CanalPacket.Packet

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    private InetSocketAddress doConnect() throws CanalClientException {
        try {
            channel = SocketChannel.open();
            channel.socket().setSoTimeout(soTimeout);
            channel.connect(address);
            Packet p = Packet.parseFrom(readNextPacket(channel));
            if (p.getVersion() != 1) {
                throw new CanalClientException("unsupported version at this client.");
            }

            if (p.getType() != PacketType.HANDSHAKE) {
                throw new CanalClientException("expect handshake but found other type.");
            }
            //
            Handshake handshake = Handshake.parseFrom(p.getBody());
            supportedCompressions.addAll(handshake.getSupportedCompressionsList());
            //
            ClientAuth ca = ClientAuth.newBuilder().setUsername(username != null ? username : "").setNetReadTimeout(soTimeout).setNetWriteTimeout(soTimeout).build();
            writeWithHeader(channel,
                            Packet.newBuilder().setType(PacketType.CLIENTAUTHENTICATION).setBody(ca.toByteString()).build().toByteArray());
            //
            Packet ack = Packet.parseFrom(readNextPacket(channel));
            if (ack.getType() != PacketType.ACK) {
                throw new CanalClientException("unexpected packet type when ack is expected");
            }

            Ack ackBody = Ack.parseFrom(ack.getBody());
            if (ackBody.getErrorCode() > 0) {
                throw new CanalClientException("something goes wrong when doing authentication: "
                                               + ackBody.getErrorMessage());
            }
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        waitClientRunning();
        try {
            writeWithHeader(channel,
                            Packet.newBuilder().setType(PacketType.SUBSCRIPTION).setBody(Sub.newBuilder().setDestination(clientIdentity.getDestination()).setClientId(String.valueOf(clientIdentity.getClientId())).setFilter(filter != null ? filter : "").build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            Ack ack = Ack.parseFrom(p.getBody());
            if (ack.getErrorCode() > 0) {
                throw new CanalClientException("failed to subscribe with reason: " + ack.getErrorMessage());
            }

            clientIdentity.setFilter(filter);
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        waitClientRunning();
        try {
            writeWithHeader(channel,
                            Packet.newBuilder().setType(PacketType.UNSUBSCRIPTION).setBody(Unsub.newBuilder().setDestination(clientIdentity.getDestination()).setClientId(String.valueOf(clientIdentity.getClientId())).build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            Ack ack = Ack.parseFrom(p.getBody());
            if (ack.getErrorCode() > 0) {
                throw new CanalClientException("failed to unSubscribe with reason: " + ack.getErrorMessage());
            }
        } catch (IOException e) {
            throw new CanalClientException(e);
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            throw new CanalClientException(e);
        }
    }

    private Message receiveMessages() throws InvalidProtocolBufferException, IOException {
        Packet p = Packet.parseFrom(readNextPacket(channel));
        switch (p.getType()) {
            case MESSAGES: {
                if (!p.getCompression().equals(Compression.NONE)) {
                    throw new CanalClientException("compression is not supported in this connector");
                }

                Messages messages = Messages.parseFrom(p.getBody());
                Message result = new Message(messages.getBatchId());
                for (ByteString byteString : messages.getMessagesList()) {
                    result.addEntry(Entry.parseFrom(byteString));
                }
                return result;
            }
            case ACK: {
                Ack ack = Ack.parseFrom(p.getBody());
                throw new CanalClientException("something goes wrong with reason: " + ack.getErrorMessage());
            }
            default: {
                throw new CanalClientException("unexpected packet type: " + p.getType());
            }
        }
    }
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    private InetSocketAddress doConnect() throws CanalClientException {
        try {
            channel = SocketChannel.open();
            channel.socket().setSoTimeout(soTimeout);
            channel.connect(address);
            Packet p = Packet.parseFrom(readNextPacket(channel));
            if (p.getVersion() != 1) {
                throw new CanalClientException("unsupported version at this client.");
            }

            if (p.getType() != PacketType.HANDSHAKE) {
                throw new CanalClientException("expect handshake but found other type.");
            }
            //
            Handshake handshake = Handshake.parseFrom(p.getBody());
            supportedCompressions.addAll(handshake.getSupportedCompressionsList());
            //
            ClientAuth ca = ClientAuth.newBuilder().setUsername(username != null ? username : "").setNetReadTimeout(
                                                                                                                    10000).setNetWriteTimeout(
                                                                                                                                              10000).build();
            writeWithHeader(
                            channel,
                            Packet.newBuilder().setType(PacketType.CLIENTAUTHENTICATION).setBody(ca.toByteString()).build().toByteArray());
            //
            Packet ack = Packet.parseFrom(readNextPacket(channel));
            if (ack.getType() != PacketType.ACK) {
                throw new CanalClientException("unexpected packet type when ack is expected");
            }

            Ack ackBody = Ack.parseFrom(ack.getBody());
            if (ackBody.getErrorCode() > 0) {
                throw new CanalClientException("something goes wrong when doing authentication: "
                                               + ackBody.getErrorMessage());
            }
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                                                                                         Sub.newBuilder().setDestination(
                                                                                                                         clientIdentity.getDestination()).setClientId(
                                                                                                                                                                      String.valueOf(clientIdentity.getClientId())).setFilter(
                                                                                                                                                                                                                              filter != null ? filter : "").build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            Ack ack = Ack.parseFrom(p.getBody());
            if (ack.getErrorCode() > 0) {
                throw new CanalClientException("failed to subscribe with reason: " + ack.getErrorMessage());
            }

            clientIdentity.setFilter(filter);
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                            Packet.newBuilder().setType(PacketType.UNSUBSCRIPTION).setBody(
                                                                                           Unsub.newBuilder().setDestination(
                                                                                                                             clientIdentity.getDestination()).setClientId(
                                                                                                                                                                          String.valueOf(clientIdentity.getClientId())).build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            Ack ack = Ack.parseFrom(p.getBody());
            if (ack.getErrorCode() > 0) {
                throw new CanalClientException("failed to unSubscribe with reason: " + ack.getErrorMessage());
            }
        } catch (IOException e) {
            throw new CanalClientException(e);
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                                                                                Get.newBuilder().setDestination(
                                                                                                                clientIdentity.getDestination()).setClientId(
                                                                                                                                                             String.valueOf(clientIdentity.getClientId())).setFetchSize(
                                                                                                                                                                                                                        size).build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            switch (p.getType()) {
                case MESSAGES: {
                    if (!p.getCompression().equals(Compression.NONE)) {
                        throw new CanalClientException("compression is not supported in this connector");
                    }

                    Messages messages = Messages.parseFrom(p.getBody());
                    Message result = new Message(messages.getBatchId());
                    for (ByteString byteString : messages.getMessagesList()) {
                        result.addEntry(Entry.parseFrom(byteString));
                    }
                    return result;
                }
                case ACK: {
                    Ack ack = Ack.parseFrom(p.getBody());
                    throw new CanalClientException("something goes wrong with reason: " + ack.getErrorMessage());
                }
                default: {
                    throw new CanalClientException("unexpected packet type: " + p.getType());
                }
            }
        } catch (IOException e) {
            throw new CanalClientException(e);
        }
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    private InetSocketAddress doConnect() throws CanalClientException {
        try {
            channel = SocketChannel.open();
            channel.socket().setSoTimeout(soTimeout);
            channel.connect(address);
            Packet p = Packet.parseFrom(readNextPacket(channel));
            if (p.getVersion() != 1) {
                throw new CanalClientException("unsupported version at this client.");
            }

            if (p.getType() != PacketType.HANDSHAKE) {
                throw new CanalClientException("expect handshake but found other type.");
            }
            //
            Handshake handshake = Handshake.parseFrom(p.getBody());
            supportedCompressions.addAll(handshake.getSupportedCompressionsList());
            //
            ClientAuth ca = ClientAuth.newBuilder().setUsername(username != null ? username : "").setNetReadTimeout(soTimeout).setNetWriteTimeout(soTimeout).build();
            writeWithHeader(channel,
                            Packet.newBuilder().setType(PacketType.CLIENTAUTHENTICATION).setBody(ca.toByteString()).build().toByteArray());
            //
            Packet ack = Packet.parseFrom(readNextPacket(channel));
            if (ack.getType() != PacketType.ACK) {
                throw new CanalClientException("unexpected packet type when ack is expected");
            }

            Ack ackBody = Ack.parseFrom(ack.getBody());
            if (ackBody.getErrorCode() > 0) {
                throw new CanalClientException("something goes wrong when doing authentication: "
                                               + ackBody.getErrorMessage());
            }
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        waitClientRunning();
        try {
            writeWithHeader(channel,
                            Packet.newBuilder().setType(PacketType.SUBSCRIPTION).setBody(Sub.newBuilder().setDestination(clientIdentity.getDestination()).setClientId(String.valueOf(clientIdentity.getClientId())).setFilter(filter != null ? filter : "").build().toByteString()).build().toByteArray());
            //
            Packet p = Packet.parseFrom(readNextPacket(channel));
            Ack ack = Ack.parseFrom(p.getBody());
            if (ack.getErrorCode() > 0) {
                throw new CanalClientException("failed to subscribe with reason: " + ack.getErrorMessage());
            }

            clientIdentity.setFilter(filter);
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Related Classes of com.alibaba.otter.canal.protocol.CanalPacket.Packet

  • com.alibaba.otter.canal.client.impl.SimpleCanalConnector
  • com.alibaba.otter.canal.server.CanalServerWithNettyTest
  • com.alibaba.otter.canal.server.netty.handler.ClientAuthenticationHandler
  • com.alibaba.otter.canal.server.netty.handler.SessionHandler
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