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feat():canal-adapter同步到rdb时，mirrorDb模式下支持改库名 #5218

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feat():canal-adapter同步到rdb时，mirrorDb模式下支持改库名 #5218

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17 changes: 15 additions & 2 deletions .../main/java/com/alibaba/otter/canal/client/adapter/rdb/service/RdbMirrorDbSyncService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -132,7 +132,12 @@ private void initMappingConfig(String key, MappingConfig baseConfigMap, MirrorDb
mappingConfig.setDbMapping(dbMapping);
dbMapping.setDatabase(dml.getDatabase());
dbMapping.setTable(dml.getTable());
dbMapping.setTargetDb(dml.getDatabase());
// 获取 targetDb，如果没有设置则使用 dml.getDatabase()
String targetDb = baseConfigMap.getDbMapping().getTargetDb();
if (StringUtils.isEmpty(targetDb)) {
targetDb = dml.getDatabase();
}
dbMapping.setTargetDb(targetDb);
dbMapping.setTargetTable(dml.getTable());
dbMapping.setMapAll(true);
List<String> pkNames = dml.getPkNames();
Expand All @@ -151,8 +156,16 @@ private void initMappingConfig(String key, MappingConfig baseConfigMap, MirrorDb
*/
private void executeDdl(MirrorDbConfig mirrorDbConfig, Dml ddl) {
try (Connection conn = dataSource.getConnection(); Statement statement = conn.createStatement()) {
// 替换反引号

String sql = ddl.getSql();
// 从配置中获取 targetDb，如果有则进行替换
String targetDb = mirrorDbConfig.getMappingConfig().getDbMapping().getTargetDb();
if (!StringUtils.isEmpty(targetDb)) {
String originalDbName = ddl.getDatabase();
String regex = String.format("\\b%s\\b([.`])", originalDbName);
sql = sql.replaceAll(regex, targetDb + "$1");
}
// 替换反引号
String backtick = SyncUtil.getBacktickByDbType(dataSource.getDbType());
if (!"`".equals(backtick)) {
sql = sql.replaceAll("`", backtick);
Expand Down