| 提交 | 用户 | age | ||
| de8c2b | 1 | package com.duxinglangzi.canal.starter.configuration; |
| D | 2 | |
| 3 | import com.alibaba.otter.canal.protocol.CanalEntry; | |
| 4 | import com.alibaba.otter.canal.protocol.exception.CanalClientException; | |
| c83c1b | 5 | import com.duxinglangzi.canal.starter.mode.CanalMessage; |
| de8c2b | 6 | import org.apache.commons.lang3.StringUtils; |
| D | 7 | |
| 8 | import java.lang.reflect.Method; | |
| 9 | import java.util.Arrays; | |
| 10 | import java.util.List; | |
| 11 | import java.util.Set; | |
| 12 | import java.util.function.Predicate; | |
| 13 | import java.util.stream.Collectors; | |
| 14 | ||
| 15 | /** | |
| c83c1b | 16 | * 监听的终端注册器 |
| 7cf978 | 17 | * |
| de8c2b | 18 | * @author wuqiong 2022/4/11 |
| D | 19 | */ |
| 20 | public class CanalListenerEndpointRegistrar { | |
| 21 | ||
| 22 | private Object bean; | |
| a87aa7 | 23 | private Method method; |
| D | 24 | |
| 25 | /** | |
| 26 | * 如果未进行配置，则使用配置文件里全部 destination | |
| 27 | */ | |
| 28 | private String destination; | |
| 29 | ||
| 30 | /** | |
| 31 | * 数据库名 | |
| 32 | */ | |
| 33 | private String database; | |
| 34 | ||
| 35 | /** | |
| 36 | * 数据表名 | |
| 37 | */ | |
| 38 | private String[] table; | |
| 39 | ||
| 40 | /** | |
| 41 | * 数据变动类型，此处请注意，默认不包含 DDL | |
| 42 | */ | |
| 43 | private CanalEntry.EventType[] eventType; | |
| de8c2b | 44 | |
| 627420 | 45 | /** |
| c83c1b | 46 | * 1、目前实现的 DML 解析器仅支持1个参数, 该参数对象内包含了: 库名、表名、事件类型、变更的数据 <p> |
| D | 47 | * 2、方法参数必须为: CanalMessage <p> |
| 627420 | 48 | * 3、如果CanalListener 指定的 destination 不在配置文件内，则直接抛错 <p> |
| 7cf978 | 49 | * |
| 627420 | 50 | * @param sets |
| D | 51 | * @return void |
| 52 | * @author wuqiong 2022-04-23 20:27 | |
| 53 | */ | |
| de8c2b | 54 | public void checkParameter(Set<String> sets) { |
| D | 55 | List<Class<?>> classes = parameterTypes(); |
| c83c1b | 56 | if (classes.size() != 1 || classes.get(0) != CanalMessage.class) |
| de8c2b | 57 | throw new IllegalArgumentException("@CanalListener Method Parameter Type Invalid, " + |
| c83c1b | 58 | "Need Parameter Type [ com.duxinglangzi.canal.starter.mode.CanalMessage ] please check "); |
| a87aa7 | 59 | if (StringUtils.isNotBlank(getDestination()) && !sets.contains(getDestination())) |
| cf3e03 | 60 | throw new CanalClientException("@CanalListener Illegal destination " + getDestination() + ", please check "); |
| de8c2b | 61 | |
| D | 62 | } |
| 63 | ||
| 64 | ||
| 65 | public List<Class<?>> parameterTypes() { | |
| a87aa7 | 66 | return Arrays.stream(getMethod().getParameterTypes()).collect(Collectors.toList()); |
| de8c2b | 67 | } |
| D | 68 | |
| 69 | public boolean isContainDestination(String destination) { | |
| a87aa7 | 70 | if (StringUtils.isBlank(getDestination())) return true; |
| D | 71 | return getDestination().equals(destination); |
| de8c2b | 72 | } |
| D | 73 | |
| 627420 | 74 | /** |
| D | 75 | * 过滤参数 |
| 7cf978 | 76 | * |
| 627420 | 77 | * @param database |
| D | 78 | * @param tableName |
| 79 | * @param eventType | |
| 80 | * @return java.util.function.Predicate | |
| 81 | * @author wuqiong 2022-04-23 20:47 | |
| 82 | */ | |
| de8c2b | 83 | public static Predicate<CanalListenerEndpointRegistrar> filterArgs( |
| D | 84 | String database, String tableName, CanalEntry.EventType eventType) { |
| a87aa7 | 85 | Predicate<CanalListenerEndpointRegistrar> databases = |
| D | 86 | e -> StringUtils.isBlank(e.getDatabase()) || e.getDatabase().equals(database); |
| 87 | Predicate<CanalListenerEndpointRegistrar> table = e -> e.getTable().length == 0 | |
| 88 | || (e.getTable().length == 1 && "".equals(e.getTable()[0])) | |
| 89 | || Arrays.stream(e.getTable()).anyMatch(s -> s.equals(tableName)); | |
| 90 | Predicate<CanalListenerEndpointRegistrar> eventTypes = e -> e.getEventType().length == 0 | |
| 91 | || Arrays.stream(e.getEventType()).anyMatch(eve -> eve == eventType); | |
| de8c2b | 92 | return databases.and(table).and(eventTypes); |
| D | 93 | } |
| 94 | ||
| 95 | ||
| a87aa7 | 96 | public CanalListenerEndpointRegistrar( |
| D | 97 | Object bean, Method method, String destination, |
| 98 | String database, String[] tables, CanalEntry.EventType[] eventTypes) { | |
| de8c2b | 99 | this.bean = bean; |
| a87aa7 | 100 | this.method = method; |
| D | 101 | this.destination = destination; |
| 102 | this.database = database; | |
| 103 | this.table = tables; | |
| 104 | this.eventType = eventTypes; | |
| de8c2b | 105 | } |
| D | 106 | |
| 107 | public Object getBean() { | |
| 108 | return bean; | |
| 109 | } | |
| a87aa7 | 110 | |
| D | 111 | public Method getMethod() { |
| 112 | return method; | |
| 113 | } | |
| 114 | ||
| 115 | public String getDestination() { | |
| 116 | return destination; | |
| 117 | } | |
| 118 | ||
| 119 | public String getDatabase() { | |
| 120 | return database; | |
| 121 | } | |
| 122 | ||
| 123 | public String[] getTable() { | |
| 124 | return table; | |
| 125 | } | |
| 126 | ||
| 127 | public CanalEntry.EventType[] getEventType() { | |
| 128 | return eventType; | |
| 129 | } | |
| de8c2b | 130 | } |
