| 提交 | 用户 | age | ||
| de8c2b | 1 | package com.duxinglangzi.canal.starter.container; |
| D | 2 | |
| 3 | import com.alibaba.otter.canal.protocol.CanalEntry; | |
| 4 | import com.duxinglangzi.canal.starter.listener.ApplicationReadyListener; | |
| 5 | import org.springframework.context.SmartLifecycle; | |
| 6 | ||
| 7 | import java.util.Arrays; | |
| 8 | import java.util.List; | |
| 9 | import java.util.concurrent.TimeUnit; | |
| 10 | ||
| 11 | /** | |
| 627420 | 12 | * 抽象的canal transponder ,实现SmartLifecycle接口,声明周期由spring进行管理 |
| de8c2b | 13 | * @author wuqiong 2022/4/11 |
| D | 14 | */ |
| 15 | public abstract class AbstractCanalTransponderContainer implements SmartLifecycle { | |
| 16 | protected boolean isRunning = false; | |
| 17 | protected final Long SLEEP_TIME_MILLI_SECONDS = 1000L; | |
| 18 | protected List<CanalEntry.EntryType> IGNORE_ENTRY_TYPES = | |
| 19 | Arrays.asList(CanalEntry.EntryType.TRANSACTIONBEGIN, | |
| 20 | CanalEntry.EntryType.TRANSACTIONEND, | |
| 21 | CanalEntry.EntryType.HEARTBEAT); | |
| 22 | ||
| 23 | protected abstract void doStart(); | |
| 24 | protected abstract void initConnect(); | |
| 929202 | 25 | protected abstract void disconnect(); |
| de8c2b | 26 | |
| D | 27 | |
| 28 | @Override | |
| 29 | public void start() { | |
| 30 | new Thread(() -> { | |
| 627420 | 31 | // spring 启动后 才会进行canal数据拉取 |
| de8c2b | 32 | while (!ApplicationReadyListener.START_LISTENER_CONTAINER.get()) |
| D | 33 | sleep(5L * SLEEP_TIME_MILLI_SECONDS); |
| 34 | initConnect(); | |
| 35 | while (isRunning() && !Thread.currentThread().isInterrupted()) doStart(); | |
| 929202 | 36 | disconnect(); // 线程被终止或者容器已经停止 |
| de8c2b | 37 | }).start(); |
| 627420 | 38 | setRunning(true); |
| de8c2b | 39 | } |
| D | 40 | |
| 41 | @Override | |
| 42 | public void stop() { | |
| 43 | setRunning(false); | |
| 44 | } | |
| 45 | ||
| 46 | @Override | |
| 47 | public void stop(Runnable callback) { | |
| 48 | callback.run(); | |
| 49 | setRunning(false); | |
| 3271ce | 50 | sleep(SLEEP_TIME_MILLI_SECONDS); |
| de8c2b | 51 | } |
| D | 52 | |
| 53 | @Override | |
| 54 | public boolean isRunning() { | |
| 55 | return isRunning; | |
| 56 | } | |
| 57 | ||
| 58 | protected void setRunning(boolean bool){ | |
| 59 | isRunning = bool; | |
| 60 | } | |
| 61 | ||
| 62 | protected void sleep(long sleepTimeMilliSeconds) { | |
| 63 | try { | |
| 64 | TimeUnit.MILLISECONDS.sleep(sleepTimeMilliSeconds); | |
| 65 | if (!isRunning()) Thread.currentThread().interrupt(); | |
| 66 | } catch (InterruptedException e) { | |
| 67 | } | |
| 68 | } | |
| 69 | ||
| 70 | ||
| 71 | } | |
