public boolean schemaChange()

in flink-doris-connector/src/main/java/org/apache/doris/flink/sink/writer/serializer/jsondebezium/SQLParserSchemaChange.java [66:107]

40 lines of code
9 McCabe index (conditional complexity)


    public boolean schemaChange(JsonNode recordRoot) {
        boolean status = false;
        try {
            if (!StringUtils.isNullOrWhitespaceOnly(sourceTableName) && !checkTable(recordRoot)) {
                return false;
            }

            EventType eventType = extractEventType(recordRoot);
            if (eventType == null) {
                LOG.warn("Failed to parse eventType. recordRoot={}", recordRoot);
                return false;
            }

            if (eventType.equals(EventType.CREATE)) {
                String dorisTable = getCreateTableIdentifier(recordRoot);
                TableSchema tableSchema = tryParseCreateTableStatement(recordRoot, dorisTable);
                status = schemaChangeManager.createTable(tableSchema);
                if (status) {
                    String cdcTbl = getCdcTableIdentifier(recordRoot);
                    String dorisTbl = getCreateTableIdentifier(recordRoot);
                    changeContext.getTableMapping().put(cdcTbl, dorisTbl);
                    this.tableMapping = changeContext.getTableMapping();
                    LOG.info(
                            "create table ddl status: {}, add tableMapping {},{}",
                            status,
                            cdcTbl,
                            dorisTbl);
                }
            } else if (eventType.equals(EventType.ALTER)) {
                Tuple2<String, String> dorisTableTuple = getDorisTableTuple(recordRoot);
                if (dorisTableTuple == null) {
                    LOG.warn("Failed to get doris table tuple. record={}", recordRoot);
                    return false;
                }
                List<String> ddlList = tryParseAlterDDLs(recordRoot);
                status = executeAlterDDLs(ddlList, recordRoot, dorisTableTuple, status);
            }
        } catch (Exception ex) {
            LOG.warn("schema change error : ", ex);
        }
        return status;
    }