| 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 |
| 7cf978 | 13 | * |
| de8c2b | 14 | * @author wuqiong 2022/4/11 |
| D | 15 | */ |
| 16 | public abstract class AbstractCanalTransponderContainer implements SmartLifecycle { | |
| 17 | protected boolean isRunning = false; | |
| 18 | protected final Long SLEEP_TIME_MILLI_SECONDS = 1000L; | |
| 19 | protected List<CanalEntry.EntryType> IGNORE_ENTRY_TYPES = | |
| 20 | Arrays.asList(CanalEntry.EntryType.TRANSACTIONBEGIN, | |
| 21 | CanalEntry.EntryType.TRANSACTIONEND, | |
| 22 | CanalEntry.EntryType.HEARTBEAT); | |
| 23 | ||
| 24 | protected abstract void doStart(); | |
| 7cf978 | 25 | |
| de8c2b | 26 | protected abstract void initConnect(); |
| 7cf978 | 27 | |
| 929202 | 28 | protected abstract void disconnect(); |
| de8c2b | 29 | |
| D | 30 | |
| 31 | @Override | |
| 32 | public void start() { | |
| 33 | new Thread(() -> { | |
| 627420 | 34 | // spring 启动后 才会进行canal数据拉取 |
| de8c2b | 35 | while (!ApplicationReadyListener.START_LISTENER_CONTAINER.get()) |
| D | 36 | sleep(5L * SLEEP_TIME_MILLI_SECONDS); |
| 37 | initConnect(); | |
| 38 | while (isRunning() && !Thread.currentThread().isInterrupted()) doStart(); | |
| a8f947 | 39 | disconnect(); // 线程被终止或者容器已经停止,需要关闭连接 |
| de8c2b | 40 | }).start(); |
| 627420 | 41 | setRunning(true); |
| de8c2b | 42 | } |
| D | 43 | |
| 44 | @Override | |
| 45 | public void stop() { | |
| 46 | setRunning(false); | |
| 47 | } | |
| 48 | ||
| 49 | @Override | |
| 50 | public void stop(Runnable callback) { | |
| 51 | callback.run(); | |
| 52 | setRunning(false); | |
| 3271ce | 53 | sleep(SLEEP_TIME_MILLI_SECONDS); |
| de8c2b | 54 | } |
| D | 55 | |
| 56 | @Override | |
| 57 | public boolean isRunning() { | |
| 58 | return isRunning; | |
| 59 | } | |
| 60 | ||
| 7cf978 | 61 | protected void setRunning(boolean bool) { |
| de8c2b | 62 | isRunning = bool; |
| D | 63 | } |
| 64 | ||
| 65 | protected void sleep(long sleepTimeMilliSeconds) { | |
| 66 | try { | |
| 67 | TimeUnit.MILLISECONDS.sleep(sleepTimeMilliSeconds); | |
| 68 | if (!isRunning()) Thread.currentThread().interrupt(); | |
| 69 | } catch (InterruptedException e) { | |
| 70 | } | |
| 71 | } | |
| 72 | ||
| 73 | ||
| 74 | } | |
