| 提交 | 用户 | age | ||
| 0b055a | 1 | package com.hz.canal.starter.container; |
| R | 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.hz.canal.starter.configuration.CanalAutoConfigurationProperties; | |
| 7 | import com.hz.canal.starter.configuration.CanalListenerEndpointRegistrar; | |
| 8 | import com.hz.canal.starter.mode.CanalMessage; | |
| 9 | import org.slf4j.Logger; | |
| 10 | import org.slf4j.LoggerFactory; | |
| 11 | ||
| 12 | import java.lang.reflect.InvocationTargetException; | |
| 13 | import java.util.*; | |
| 14 | ||
| 15 | /** | |
| 16 | * DML 数据拉取、解析 | |
| 17 | * | |
| 18 | * @author wuqiong 2022/4/11 | |
| 19 | */ | |
| 20 | public class DmlMessageTransponderContainer extends AbstractCanalTransponderContainer { | |
| 21 | ||
| 22 | private final static Logger logger = LoggerFactory.getLogger(DmlMessageTransponderContainer.class); | |
| 23 | ||
| 24 | private CanalConnector connector; | |
| 25 | private CanalAutoConfigurationProperties.EndpointInstance endpointInstance; | |
| 26 | private List<CanalListenerEndpointRegistrar> registrars = new ArrayList<>(); | |
| 27 | private Set<CanalEntry.EventType> support_all_types = new HashSet<>(); | |
| 28 | private Integer local_retry_count; | |
| 29 | ||
| 30 | ||
| 31 | public void initConnect() { | |
| 32 | try { | |
| 33 | // init supportAllTypes | |
| 34 | registrars.forEach(e -> support_all_types.addAll(Arrays.asList(e.getEventType()))); | |
| 35 | connector.connect(); | |
| 36 | connector.subscribe(endpointInstance.getSubscribe()); | |
| 37 | connector.rollback(); | |
| 38 | // 初始化本地重试次数 | |
| 39 | local_retry_count = endpointInstance.getRetryCount(); | |
| 40 | } catch (Exception e) { | |
| 41 | logger.error("[DmlMessageTransponderContainer_initConnect] canal client connect error .", e); | |
| 42 | setRunning(false); | |
| 43 | } | |
| 44 | ||
| 45 | } | |
| 46 | ||
| 47 | public void disconnect() { | |
| 48 | // 关闭连接 | |
| 49 | connector.disconnect(); | |
| 50 | } | |
| 51 | ||
| 52 | ||
| 53 | public void doStart() { | |
| 54 | try { | |
| 55 | Message message = null; | |
| 56 | try { | |
| 57 | message = connector.getWithoutAck(endpointInstance.getBatchSize()); // 获取指定数量的数据 | |
| 58 | } catch (Exception clientException) { | |
| 59 | logger.error("[DmlMessageTransponderContainer] error msg : ", clientException); | |
| 60 | if (local_retry_count > 0) { | |
| 61 | // 重试次数减一 | |
| 62 | local_retry_count = local_retry_count - 1; | |
| 63 | sleep(endpointInstance.getAcquireInterval()); | |
| 64 | } else { | |
| 65 | // 重试次数 <= 0 时,直接终止线程 | |
| 66 | logger.error("[DmlMessageTransponderContainer] retry count is zero , " + | |
| 67 | "thread interrupt , current connector host: {} , port: {} ", | |
| 68 | endpointInstance.getHost(), endpointInstance.getPort()); | |
| 69 | Thread.currentThread().interrupt(); | |
| 70 | } | |
| 71 | return; | |
| 72 | } | |
| 73 | // 如果重试次数小于设置的,则修改 | |
| 74 | if (local_retry_count < endpointInstance.getRetryCount()) | |
| 75 | local_retry_count = endpointInstance.getRetryCount(); | |
| 76 | List<CanalEntry.Entry> entries = message.getEntries(); | |
| 77 | if (message.getId() == -1 || entries.isEmpty()) { | |
| 78 | sleep(endpointInstance.getAcquireInterval()); | |
| 79 | return; | |
| 80 | } | |
| 81 | for (CanalEntry.Entry entry : entries) { | |
| 82 | try { | |
| 83 | consumer(entry); | |
| 84 | } catch (Exception e) { | |
| 85 | e.printStackTrace(); | |
| 86 | logger.error("[DmlMessageTransponderContainer_doStart] CanalEntry.Entry consumer error ", e); | |
| 87 | // connector.rollback(message.getId()); // 目前先不处理失败, 无需回滚数据 | |
| 88 | // return; | |
| 89 | } | |
| 90 | } | |
| 91 | connector.ack(message.getId()); // 提交确认 | |
| 92 | } catch (Exception exc) { | |
| 93 | logger.error("[DmlMessageTransponderContainer_doStart] Pull data message exception,errorMessage:{}", exc.getLocalizedMessage()); | |
| 94 | // 防止删除消息时发生错误,或者拉取消息失败等情况 | |
| 95 | exc.printStackTrace(); | |
| 96 | } | |
| 97 | } | |
| 98 | ||
| 99 | public DmlMessageTransponderContainer( | |
| 100 | CanalConnector connector, List<CanalListenerEndpointRegistrar> registrars, | |
| 101 | CanalAutoConfigurationProperties.EndpointInstance endpointInstance) { | |
| 102 | this.connector = connector; | |
| 103 | this.registrars.addAll(registrars); | |
| 104 | this.endpointInstance = endpointInstance; | |
| 105 | } | |
| 106 | ||
| 107 | private void consumer(CanalEntry.Entry entry) { | |
| 108 | if (IGNORE_ENTRY_TYPES.contains(entry.getEntryType())) return; | |
| 109 | CanalEntry.RowChange rowChange = null; | |
| 110 | try { | |
| 111 | rowChange = CanalEntry.RowChange.parseFrom(entry.getStoreValue()); | |
| 112 | } catch (Exception e) { | |
| 113 | logger.error("[DmlMessageTransponderContainer_consumer] RowChange parse has an error ", e); | |
| 114 | throw new RuntimeException("RowChange parse has an error , data:" + entry.toString(), e); | |
| 115 | } | |
| 116 | ||
| 117 | // 忽略 ddl 语句 | |
| 118 | if (rowChange.hasIsDdl() && rowChange.getIsDdl()) return; | |
| 119 | CanalEntry.EventType eventType = rowChange.getEventType(); | |
| 120 | if (!support_all_types.contains(eventType)) return; | |
| 121 | for (CanalEntry.RowData rowData : rowChange.getRowDatasList()) { | |
| 122 | registrars | |
| 123 | .stream() | |
| 124 | .filter(CanalListenerEndpointRegistrar.filterArgs( | |
| 125 | entry.getHeader().getSchemaName(), | |
| 126 | entry.getHeader().getTableName(), | |
| 127 | eventType)) | |
| 128 | .forEach(element -> { | |
| 129 | try { | |
| 130 | element.getMethod().invoke(element.getBean(), new CanalMessage(entry.getHeader(), eventType, rowData)); | |
| 131 | } catch (IllegalAccessException | InvocationTargetException e) { | |
| 132 | logger.error("[DmlMessageTransponderContainer_consumer] RowData Callback Method invoke error message", e); | |
| 133 | throw new RuntimeException("RowData Callback Method invoke error message： " + e.getMessage(), e); | |
| 134 | } | |
| 135 | }); | |
| 136 | } | |
| 137 | } | |
| 138 | ||
| 139 | } | |
