protected void validateHiveOptions()

in client/migrationx/migrationx-transformer/src/main/java/com/aliyun/dataworks/migrationx/transformer/core/sqoop/BaseSqoopTool.java [1306:1384]
68 lines of code
28 McCabe index (conditional complexity)

    protected void validateHiveOptions(SqoopOptions options)
        throws InvalidOptionsException {
        if (options.getHiveDelimsReplacement() != null
            && options.doHiveDropDelims()) {
            throw new InvalidOptionsException("The " + HIVE_DROP_DELIMS_ARG
                + " option conflicts with the " + HIVE_DELIMS_REPLACEMENT_ARG
                + " option." + HELP_STR);
        }

        // Make sure that one of hCatalog or hive jobs are used
        String hCatTable = options.getHCatTableName();
        if (hCatTable != null && options.doHiveImport()) {
            throw new InvalidOptionsException("The " + HCATALOG_TABLE_ARG
                + " option conflicts with the " + HIVE_IMPORT_ARG
                + " option." + HELP_STR);
        }

        if (options.doHiveImport()
            && options.getFileLayout() == SqoopOptions.FileLayout.AvroDataFile) {
            throw new InvalidOptionsException("Hive import is not compatible with "
                + "importing into AVRO format.");
        }

        if (options.doHiveImport()
            && options.getFileLayout() == SqoopOptions.FileLayout.SequenceFile) {
            throw new InvalidOptionsException("Hive import is not compatible with "
                + "importing into SequenceFile format.");
        }

        // Many users are reporting issues when they are trying to import data
        // directly into hive warehouse. This should prevent users from doing
        // so in case of a default location.
        String defaultHiveWarehouse = "/user/hive/warehouse";
        if (options.doHiveImport()
            && ((
            options.getWarehouseDir() != null
                && options.getWarehouseDir().startsWith(defaultHiveWarehouse)
        ) || (
            options.getTargetDir() != null
                && options.getTargetDir().startsWith(defaultHiveWarehouse)
        ))) {
            LOG.warn("It seems that you're doing hive import directly into default");
            LOG.warn("hive warehouse directory which is not supported. Sqoop is");
            LOG.warn("firstly importing data into separate directory and then");
            LOG.warn("inserting data into hive. Please consider removing");
            LOG.warn("--target-dir or --warehouse-dir into /user/hive/warehouse in");
            LOG.warn("case that you will detect any issues.");
        }

        // Warn about using hive specific arguments without hive import itself
        // In HCatalog support some of the Hive options are reused
        if (!options.doHiveImport()
            && (((options.getHiveHome() != null
            && !options.getHiveHome().equals(SqoopOptions.getHiveHomeDefault())
            && hCatTable == null))
            || options.doOverwriteHiveTable()
            || options.doFailIfHiveTableExists()
            || (options.getHiveTableName() != null
            && !options.getHiveTableName().equals(options.getTableName()))
            || (options.getHivePartitionKey() != null && hCatTable == null)
            || (options.getHivePartitionValue() != null && hCatTable == null)
            || (options.getMapColumnHive().size() > 0 && hCatTable == null))) {
            LOG.warn("It seems that you've specified at least one of following:");
            LOG.warn("\t--hive-home");
            LOG.warn("\t--hive-overwrite");
            LOG.warn("\t--create-hive-table");
            LOG.warn("\t--hive-table");
            LOG.warn("\t--hive-partition-key");
            LOG.warn("\t--hive-partition-value");
            LOG.warn("\t--map-column-hive");
            LOG.warn("Without specifying parameter --hive-import. Please note that");
            LOG.warn("those arguments will not be used in this session. Either");
            LOG.warn("specify --hive-import to apply them correctly or remove them");
            LOG.warn("from command line to remove this warning.");
            LOG.info("Please note that --hive-home, --hive-partition-key, ");
            LOG.info("\t hive-partition-value and --map-column-hive options are ");
            LOG.info("\t are also valid for HCatalog imports and exports");
        }
    }