Examples with ExportNullInterpretationStrategy com.thinkbiganalytics.nifi.v2.sqoop.enums.ExportNullInterpretationStrategy used on opensource projects

Example 1 with ExportNullInterpretationStrategy

use of com.thinkbiganalytics.nifi.v2.sqoop.enums.ExportNullInterpretationStrategy in project kylo by Teradata.

the class ExportSqoop method customValidate.

/**
 * Called by the framework this method does additional validation on properties
 *
 * @param validationContext used to retrieves the properties to check
 * @return A collection of {@link ValidationResult} which will be checked by the framework
 */
@Override
protected Collection<ValidationResult> customValidate(ValidationContext validationContext) {
    final List<ValidationResult> results = new ArrayList<>();
    final ExportNullInterpretationStrategy sourceNullInterpretationStrategy = ExportNullInterpretationStrategy.valueOf(validationContext.getProperty(SOURCE_NULL_INTERPRETATION_STRATEGY).getValue());
    final String sourceNullCustomStringIdentifier = validationContext.getProperty(SOURCE_NULL_CUSTOM_STRING_IDENTIFIER).evaluateAttributeExpressions().getValue();
    final String sourceNullCustomNonStringIdentifier = validationContext.getProperty(SOURCE_NULL_CUSTOM_NON_STRING_IDENTIFIER).evaluateAttributeExpressions().getValue();
    if (sourceNullInterpretationStrategy == ExportNullInterpretationStrategy.CUSTOM_VALUES) {
        if ((sourceNullCustomStringIdentifier == null) || (sourceNullCustomNonStringIdentifier == null)) {
            results.add(new ValidationResult.Builder().subject(this.getClass().getSimpleName()).valid(false).explanation("For Custom Source Null Interpret Strategy, custom strings for identifying null strings and null non-strings in HDFS data must be provided.").build());
        }
    }
    return results;
}

Example 2 with ExportNullInterpretationStrategy

use of com.thinkbiganalytics.nifi.v2.sqoop.enums.ExportNullInterpretationStrategy in project kylo by Teradata.

the class ExportSqoop method onTrigger.

@Override
public void onTrigger(ProcessContext context, ProcessSession session) throws ProcessException {
    final ComponentLog logger = getLog();
    FlowFile flowFile = session.get();
    if (flowFile == null) {
        flowFile = session.create();
        logger.info("Created a flow file having uuid: {}", new Object[] { flowFile.getAttribute(CoreAttributes.UUID.key()) });
    } else {
        logger.info("Using an existing flow file having uuid: {}", new Object[] { flowFile.getAttribute(CoreAttributes.UUID.key()) });
    }
    final String kerberosPrincipal = context.getProperty(KERBEROS_PRINCIPAL).getValue();
    final String kerberosKeyTab = context.getProperty(KERBEROS_KEYTAB).getValue();
    final SqoopConnectionService sqoopConnectionService = context.getProperty(SQOOP_CONNECTION_SERVICE).asControllerService(SqoopConnectionService.class);
    final String sourceHdfsDirectory = context.getProperty(SOURCE_HDFS_DIRECTORY).evaluateAttributeExpressions(flowFile).getValue();
    final String sourceHdfsFileDelimiter = context.getProperty(SOURCE_HDFS_FILE_DELIMITER).evaluateAttributeExpressions(flowFile).getValue();
    final ExportNullInterpretationStrategy sourceNullInterpretationStrategy = ExportNullInterpretationStrategy.valueOf(context.getProperty(SOURCE_NULL_INTERPRETATION_STRATEGY).getValue());
    final String sourceNullCustomStringIdentifier = context.getProperty(SOURCE_NULL_CUSTOM_STRING_IDENTIFIER).evaluateAttributeExpressions(flowFile).getValue();
    final String sourceNullCustomNonStringIdentifier = context.getProperty(SOURCE_NULL_CUSTOM_NON_STRING_IDENTIFIER).evaluateAttributeExpressions(flowFile).getValue();
    final String targetTableName = context.getProperty(TARGET_TABLE_NAME).evaluateAttributeExpressions(flowFile).getValue();
    final Integer clusterMapTasks = context.getProperty(CLUSTER_MAP_TASKS).evaluateAttributeExpressions(flowFile).asInteger();
    final String systemProperties = context.getProperty(SQOOP_SYSTEM_PROPERTIES).evaluateAttributeExpressions(flowFile).getValue();
    final String additionalArguments = context.getProperty(SQOOP_ADDITIONAL_ARGUMENTS).evaluateAttributeExpressions(flowFile).getValue();
    final String hcatalogDatabase = context.getProperty(HCATALOG_DATABASE).evaluateAttributeExpressions(flowFile).getValue();
    final String hcatalogTable = context.getProperty(HCATALOG_TABLE).evaluateAttributeExpressions(flowFile).getValue();
    final String COMMAND_SHELL = "/bin/bash";
    final String COMMAND_SHELL_FLAGS = "-c";
    final StopWatch stopWatch = new StopWatch(false);
    KerberosConfig kerberosConfig = new KerberosConfig().setLogger(logger).setKerberosPrincipal(kerberosPrincipal).setKerberosKeytab(kerberosKeyTab);
    SqoopExportBuilder sqoopExportBuilder = new SqoopExportBuilder();
    String sqoopExportCommand = sqoopExportBuilder.setLogger(logger).setHcatalogDatabase(hcatalogDatabase).setHcatalogTable(hcatalogTable).setSystemProperties(systemProperties).setAdditionalArguments(additionalArguments).setTargetConnectionString(sqoopConnectionService.getConnectionString()).setTargetUserName(sqoopConnectionService.getUserName()).setPasswordMode(sqoopConnectionService.getPasswordMode()).setTargetPasswordHdfsFile(sqoopConnectionService.getPasswordHdfsFile()).setTargetPasswordPassphrase(sqoopConnectionService.getPasswordPassphrase()).setTargetEnteredPassword(sqoopConnectionService.getEnteredPassword()).setTargetConnectionManager(sqoopConnectionService.getConnectionManager()).setTargetDriver(sqoopConnectionService.getDriver()).setTargetTableName(targetTableName).setSourceHdfsDirectory(sourceHdfsDirectory).setSourceHdfsFileDelimiter(sourceHdfsFileDelimiter).setSourceNullInterpretationStrategy(sourceNullInterpretationStrategy).setSourceNullInterpretationStrategyCustomNullString(sourceNullCustomStringIdentifier).setSourceNullInterpretationStrategyCustomNullNonString(sourceNullCustomNonStringIdentifier).setClusterMapTasks(clusterMapTasks).build();
    List<String> sqoopExportExecutionCommand = new ArrayList<>();
    sqoopExportExecutionCommand.add(COMMAND_SHELL);
    sqoopExportExecutionCommand.add(COMMAND_SHELL_FLAGS);
    sqoopExportExecutionCommand.add(sqoopExportCommand);
    SqoopExportProcessRunner sqoopExportProcessRunner = new SqoopExportProcessRunner(kerberosConfig, sqoopExportExecutionCommand, logger);
    logger.info("Starting execution of Sqoop export command");
    stopWatch.start();
    SqoopProcessResult sqoopExportProcessResult = sqoopExportProcessRunner.execute();
    long jobDurationSeconds = stopWatch.getElapsed(TimeUnit.SECONDS);
    stopWatch.stop();
    logger.info("Finished execution of Sqoop export command");
    int resultExportStatus = sqoopExportProcessResult.getExitValue();
    SqoopUtils sqoopUtils = new SqoopUtils();
    long recordsExportCount = sqoopUtils.getSqoopExportRecordCount(sqoopExportProcessResult, logger);
    String sqoopExportCommandWithCredentialsMasked = sqoopUtils.maskCredentials(sqoopExportCommand, sqoopUtils.getCredentialsToMask());
    flowFile = session.putAttribute(flowFile, "sqoop.export.command.text", sqoopExportCommandWithCredentialsMasked);
    flowFile = session.putAttribute(flowFile, "sqoop.export.result.code", String.valueOf(resultExportStatus));
    flowFile = session.putAttribute(flowFile, "sqoop.export.run.seconds", String.valueOf(jobDurationSeconds));
    flowFile = session.putAttribute(flowFile, "sqoop.export.record.count", String.valueOf(recordsExportCount));
    flowFile = session.putAttribute(flowFile, "sqoop.export.output.table", targetTableName);
    logger.info("Wrote result attributes to flow file");
    if (resultExportStatus == 0) {
        logger.info("Sqoop Export OK [Code {}]", new Object[] { resultExportStatus });
        session.transfer(flowFile, REL_SUCCESS);
    } else {
        logger.info("Sqoop Export FAIL [Code {}]", new Object[] { resultExportStatus });
        session.transfer(flowFile, REL_FAILURE);
    }
}