kwonder0926 commented on code in PR #573:
URL:
https://github.com/apache/doris-flink-connector/pull/573#discussion_r1990714808
##########
flink-doris-connector/src/main/java/org/apache/doris/flink/tools/cdc/mongodb/serializer/MongoJsonDebeziumSchemaChange.java:
##########
@@ -118,6 +159,45 @@ public boolean schemaChange(JsonNode recordRoot) {
}
}
+ public static <K, V> V getRandomValue(Map<K, V> map) {
+ Collection<V> values = map.values();
+ return values.stream().findAny().orElse(null);
+ }
+
+ private void tryCreateTableIfAbsent(
+ DorisSystem dorisSystem, String targetDb, String dorisTable,
SourceSchema schema) {
+ if (!dorisSystem.tableExists(targetDb, dorisTable)) {
+ if (changeContext.getDorisTableConf().isConvertUniqToPk()
+ && CollectionUtil.isNullOrEmpty(schema.primaryKeys)
+ && !CollectionUtil.isNullOrEmpty(schema.uniqueIndexs)) {
+ schema.primaryKeys = new ArrayList<>(schema.uniqueIndexs);
+ }
+ TableSchema dorisSchema =
+ DorisSchemaFactory.createTableSchema(
+ targetDb,
+ dorisTable,
+ schema.getFields(),
+ schema.getPrimaryKeys(),
+ changeContext.getDorisTableConf(),
+ schema.getTableComment());
+ try {
+ dorisSystem.createTable(dorisSchema);
+ } catch (Exception ex) {
+ handleTableCreationFailure(ex);
+ }
+ }
+ }
+
+ private void handleTableCreationFailure(Exception ex) throws
DorisSystemException {
+ if (ex.getCause() instanceof SQLSyntaxErrorException) {
+ LOG.warn(
+ "Doris schema and source table schema are not compatible.
Error: {} ",
+ ex.getCause().toString());
+ } else {
+ throw new DorisSystemException("Failed to create table due to: ",
ex);
+ }
+ }
+
Review Comment:
My apologies, I assumed both methods were overloads of existing ones and
test cases could be omitted, even though I've run the synchronization process
locally multiple times. I'll add unit tests shortly.
This is my first time submitting code, so I hesitated to modify existing
code to avoid disrupting functionality. I'll try to refactor it into a
reusable component later to prevent code duplication.
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