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| de8c2b | 1 | package com.duxinglangzi.canal.starter.container; |
| D | 2 | |
| 3 | import com.alibaba.otter.canal.client.CanalConnector; | |
| 4 | import com.alibaba.otter.canal.protocol.CanalEntry; | |
| 5 | import com.alibaba.otter.canal.protocol.Message; | |
| 6 | import com.duxinglangzi.canal.starter.configuration.CanalAutoConfigurationProperties; | |
| 7 | import com.duxinglangzi.canal.starter.configuration.CanalListenerEndpointRegistrar; | |
| 8 | import org.slf4j.Logger; | |
| 9 | import org.slf4j.LoggerFactory; | |
| 10 | ||
| 11 | import java.lang.reflect.InvocationTargetException; | |
| 12 | import java.util.*; | |
| 13 | ||
| 14 | /** | |
| 627420 | 15 | * DML 数据拉取、解析 |
| 7cf978 | 16 | * |
| de8c2b | 17 | * @author wuqiong 2022/4/11 |
| D | 18 | */ |
| 19 | public class DmlMessageTransponderContainer extends AbstractCanalTransponderContainer { | |
| 20 | ||
| 21 | private final static Logger logger = LoggerFactory.getLogger(DmlMessageTransponderContainer.class); | |
| 22 | ||
| 23 | private CanalConnector connector; | |
| 24 | private CanalAutoConfigurationProperties.EndpointInstance endpointInstance; | |
| 25 | private List<CanalListenerEndpointRegistrar> registrars = new ArrayList<>(); | |
| 26 | private Set<CanalEntry.EventType> SUPPORT_ALL_TYPES = new HashSet<>(); | |
| 27 | ||
| 28 | ||
| 29 | public void initConnect() { | |
| 5ac2a7 | 30 | try { |
| 独 | 31 | // init supportAllTypes |
| 32 | registrars.forEach(e -> SUPPORT_ALL_TYPES.addAll( | |
| 33 | Arrays.asList(e.getListenerEntry().getValue().eventType()))); | |
| 34 | connector.connect(); | |
| 35 | connector.subscribe(endpointInstance.getSubscribe()); | |
| 36 | connector.rollback(); | |
| 37 | } catch (Exception e) { | |
| 38 | logger.error("[DmlMessageTransponderContainer_initConnect] canal client connect error .", e); | |
| 39 | setRunning(false); | |
| 40 | } | |
| de8c2b | 41 | |
| D | 42 | } |
| 43 | ||
| 7cf978 | 44 | public void disconnect() { |
| 929202 | 45 | // 关闭连接 |
| D | 46 | connector.disconnect(); |
| 47 | } | |
| 48 | ||
| de8c2b | 49 | |
| D | 50 | public void doStart() { |
| 51 | Message message = null; | |
| 52 | try { | |
| 53 | message = connector.getWithoutAck(endpointInstance.getBatchSize()); // 获取指定数量的数据 | |
| 54 | } catch (Exception clientException) { | |
| 5ac2a7 | 55 | logger.error("[DmlMessageTransponderContainer] error msg : ", clientException); |
| de8c2b | 56 | endpointInstance.setRetryCount(endpointInstance.getRetryCount() - 1); |
| D | 57 | if (endpointInstance.getRetryCount() < 0) { |
| 5ac2a7 | 58 | logger.error("[DmlMessageTransponderContainer] retry count is zero , " + |
| de8c2b | 59 | "thread interrupt , current connector host: {} , port: {} ", |
| D | 60 | endpointInstance.getHost(), endpointInstance.getPort()); |
| 61 | Thread.currentThread().interrupt(); | |
| 929202 | 62 | disconnect(); |
| de8c2b | 63 | } else { |
| D | 64 | sleep(endpointInstance.getAcquireInterval()); |
| 65 | } | |
| 66 | return; | |
| 67 | } | |
| 68 | List<CanalEntry.Entry> entries = message.getEntries(); | |
| 69 | if (message.getId() == -1 || entries.isEmpty()) { | |
| 70 | sleep(endpointInstance.getAcquireInterval()); | |
| 71 | return; | |
| 72 | } | |
| 3ad94b | 73 | for (CanalEntry.Entry entry : entries) { |
| 独 | 74 | try { |
| 75 | consumer(entry); | |
| 76 | } catch (Exception e) { | |
| 77 | e.printStackTrace(); | |
| 5ac2a7 | 78 | logger.error("[DmlMessageTransponderContainer_doStart] CanalEntry.Entry consumer error ", e); |
| 3ad94b | 79 | // connector.rollback(message.getId()); // 目前先不处理失败, 无需回滚数据 |
| 独 | 80 | // return; |
| 81 | } | |
| de8c2b | 82 | } |
| D | 83 | connector.ack(message.getId()); // 提交确认 |
| 84 | } | |
| 85 | ||
| 86 | public DmlMessageTransponderContainer( | |
| 87 | CanalConnector connector, List<CanalListenerEndpointRegistrar> registrars, | |
| 88 | CanalAutoConfigurationProperties.EndpointInstance endpointInstance) { | |
| 89 | this.connector = connector; | |
| 90 | this.registrars.addAll(registrars); | |
| 91 | this.endpointInstance = endpointInstance; | |
| 92 | } | |
| 93 | ||
| 94 | private void consumer(CanalEntry.Entry entry) { | |
| 95 | if (IGNORE_ENTRY_TYPES.contains(entry.getEntryType())) return; | |
| 96 | CanalEntry.RowChange rowChange = null; | |
| 97 | try { | |
| 98 | rowChange = CanalEntry.RowChange.parseFrom(entry.getStoreValue()); | |
| 99 | } catch (Exception e) { | |
| 5ac2a7 | 100 | logger.error("[DmlMessageTransponderContainer_consumer] RowChange parse has an error ", e); |
| de8c2b | 101 | throw new RuntimeException("RowChange parse has an error , data:" + entry.toString(), e); |
| D | 102 | } |
| 103 | ||
| 104 | // 忽略 ddl 语句 | |
| 105 | if (rowChange.hasIsDdl() && rowChange.getIsDdl()) return; | |
| 106 | CanalEntry.EventType eventType = rowChange.getEventType(); | |
| 107 | if (!SUPPORT_ALL_TYPES.contains(eventType)) return; | |
| 108 | for (CanalEntry.RowData rowData : rowChange.getRowDatasList()) { | |
| 109 | registrars | |
| 110 | .stream() | |
| 111 | .filter(CanalListenerEndpointRegistrar.filterArgs( | |
| 112 | entry.getHeader().getSchemaName(), | |
| 113 | entry.getHeader().getTableName(), | |
| 114 | eventType)) | |
| 115 | .forEach(element -> { | |
| 116 | try { | |
| 117 | element.getListenerEntry().getKey().invoke(element.getBean(), eventType, rowData); | |
| 118 | } catch (IllegalAccessException | InvocationTargetException e) { | |
| 5ac2a7 | 119 | logger.error("[DmlMessageTransponderContainer_consumer] RowData Callback Method invoke error message", e); |
| de8c2b | 120 | throw new RuntimeException("RowData Callback Method invoke error message： " + e.getMessage(), e); |
| D | 121 | } |
| 122 | }); | |
| 123 | } | |
| 124 | } | |
| 125 | ||
| 126 | } | |
