Examples with WindowConfig org.apache.pulsar.common.functions.WindowConfig used on opensource projects

Example 1 with WindowConfig

use of org.apache.pulsar.common.functions.WindowConfig in project pulsar by apache.

the class FunctionConfigUtilsTest method createFunctionConfig.

private FunctionConfig createFunctionConfig() {
    FunctionConfig functionConfig = new FunctionConfig();
    functionConfig.setTenant("test-tenant");
    functionConfig.setNamespace("test-namespace");
    functionConfig.setName("test-function");
    functionConfig.setParallelism(1);
    functionConfig.setClassName(IdentityFunction.class.getName());
    Map<String, ConsumerConfig> inputSpecs = new HashMap<>();
    inputSpecs.put("test-input", ConsumerConfig.builder().isRegexPattern(true).serdeClassName("test-serde").build());
    functionConfig.setInputSpecs(inputSpecs);
    functionConfig.setOutput("test-output");
    functionConfig.setOutputSerdeClassName("test-serde");
    functionConfig.setOutputSchemaType("json");
    functionConfig.setRuntime(FunctionConfig.Runtime.JAVA);
    functionConfig.setProcessingGuarantees(FunctionConfig.ProcessingGuarantees.ATLEAST_ONCE);
    functionConfig.setRetainOrdering(false);
    functionConfig.setRetainKeyOrdering(false);
    functionConfig.setSubscriptionPosition(SubscriptionInitialPosition.Earliest);
    functionConfig.setBatchBuilder("DEFAULT");
    functionConfig.setForwardSourceMessageProperty(false);
    functionConfig.setUserConfig(new HashMap<>());
    functionConfig.setAutoAck(true);
    functionConfig.setTimeoutMs(2000l);
    functionConfig.setWindowConfig(new WindowConfig().setWindowLengthCount(10));
    functionConfig.setCleanupSubscription(true);
    functionConfig.setRuntimeFlags("-Dfoo=bar");
    return functionConfig;
}

Example 2 with WindowConfig

use of org.apache.pulsar.common.functions.WindowConfig in project pulsar by apache.

the class WindowConfigUtilsTest method testSettingSlidingTimeWindow.

@Test
public void testSettingSlidingTimeWindow() throws Exception {
    final Object[][] args = new Object[][] { { -1L, 10L }, { 10L, -1L }, { 0L, 10L }, { 10L, 0L }, { 0L, 0L }, { -1L, -1L }, { 5L, 10L }, { 1L, 1L }, { 10L, 5L }, { 100L, 10L }, { 100L, 100L }, { 200L, 100L }, { 500L, 100L }, { null, null }, { null, 1L }, { 1L, null }, { null, -1L }, { -1L, null } };
    for (Object[] arg : args) {
        Object arg0 = arg[0];
        Object arg1 = arg[1];
        try {
            Long windowLengthDuration = null;
            if (arg0 != null) {
                windowLengthDuration = (Long) arg0;
            }
            Long slidingIntervalDuration = null;
            if (arg1 != null) {
                slidingIntervalDuration = (Long) arg1;
            }
            WindowConfig windowConfig = new WindowConfig();
            windowConfig.setWindowLengthDurationMs(windowLengthDuration);
            windowConfig.setSlidingIntervalDurationMs(slidingIntervalDuration);
            WindowConfigUtils.validate(windowConfig);
            if (arg0 == null) {
                fail(String.format("Window length cannot be null -- " + "windowLengthCount: %s slidingIntervalCount: %s", arg0, arg1));
            }
            if ((Long) arg0 <= 0) {
                fail(String.format("Window length cannot be zero or less -- " + "windowLengthCount: %s slidingIntervalCount: %s", arg0, arg1));
            }
            if (arg1 != null && (Long) arg1 <= 0) {
                fail(String.format("Sliding interval length cannot be zero or less -- " + "windowLengthCount: %s slidingIntervalCount: %s", arg0, arg1));
            }
        } catch (IllegalArgumentException e) {
            if (arg0 != null && arg1 != null && (Long) arg0 > 0 && (Long) arg1 > 0) {
                fail(String.format("Exception: %s thrown on valid input -- windowLengthDuration: %s " + "slidingIntervalDuration: %s", e.getMessage(), arg0, arg1));
            }
        }
    }
}

Example 3 with WindowConfig

use of org.apache.pulsar.common.functions.WindowConfig in project pulsar by apache.

the class WindowConfigUtilsTest method testSettingLagTime.

@Test
public void testSettingLagTime() throws Exception {
    final Object[] args = new Object[] { -1L, 0L, 1L, 2L, 5L, 10L, null };
    for (Object arg : args) {
        Object arg0 = arg;
        try {
            Long maxLagMs = null;
            if (arg0 != null) {
                maxLagMs = (Long) arg0;
            }
            WindowConfig windowConfig = new WindowConfig();
            windowConfig.setWindowLengthCount(1);
            windowConfig.setSlidingIntervalCount(1);
            windowConfig.setMaxLagMs(maxLagMs);
            windowConfig.setTimestampExtractorClassName("SomeClass");
            WindowConfigUtils.validate(windowConfig);
            if (arg0 != null && (Long) arg0 < 0) {
                fail(String.format("Window lag cannot be less than zero -- lagTime: %s", arg0));
            }
        } catch (IllegalArgumentException e) {
            if (arg0 != null && (Long) arg0 > 0) {
                fail(String.format("Exception: %s thrown on valid input -- lagTime: %s", e.getMessage(), arg0));
            }
        }
    }
}

Example 4 with WindowConfig

use of org.apache.pulsar.common.functions.WindowConfig in project pulsar by apache.

the class FunctionConfigUtils method convert.

public static FunctionDetails convert(FunctionConfig functionConfig, ClassLoader classLoader) throws IllegalArgumentException {
    boolean isBuiltin = !org.apache.commons.lang3.StringUtils.isEmpty(functionConfig.getJar()) && functionConfig.getJar().startsWith(org.apache.pulsar.common.functions.Utils.BUILTIN);
    Class<?>[] typeArgs = null;
    if (functionConfig.getRuntime() == FunctionConfig.Runtime.JAVA) {
        if (classLoader != null) {
            try {
                typeArgs = FunctionCommon.getFunctionTypes(functionConfig, classLoader);
            } catch (ClassNotFoundException | NoClassDefFoundError e) {
                throw new IllegalArgumentException(String.format("Function class %s must be in class path", functionConfig.getClassName()), e);
            }
        }
    }
    FunctionDetails.Builder functionDetailsBuilder = FunctionDetails.newBuilder();
    // Setup source
    Function.SourceSpec.Builder sourceSpecBuilder = Function.SourceSpec.newBuilder();
    if (functionConfig.getInputs() != null) {
        functionConfig.getInputs().forEach((topicName -> {
            sourceSpecBuilder.putInputSpecs(topicName, Function.ConsumerSpec.newBuilder().setIsRegexPattern(false).build());
        }));
    }
    if (functionConfig.getTopicsPattern() != null && !functionConfig.getTopicsPattern().isEmpty()) {
        sourceSpecBuilder.putInputSpecs(functionConfig.getTopicsPattern(), Function.ConsumerSpec.newBuilder().setIsRegexPattern(true).build());
    }
    if (functionConfig.getCustomSerdeInputs() != null) {
        functionConfig.getCustomSerdeInputs().forEach((topicName, serdeClassName) -> {
            sourceSpecBuilder.putInputSpecs(topicName, Function.ConsumerSpec.newBuilder().setSerdeClassName(serdeClassName).setIsRegexPattern(false).build());
        });
    }
    if (functionConfig.getCustomSchemaInputs() != null) {
        functionConfig.getCustomSchemaInputs().forEach((topicName, conf) -> {
            try {
                ConsumerConfig consumerConfig = OBJECT_MAPPER.readValue(conf, ConsumerConfig.class);
                sourceSpecBuilder.putInputSpecs(topicName, Function.ConsumerSpec.newBuilder().setSchemaType(consumerConfig.getSchemaType()).putAllSchemaProperties(consumerConfig.getSchemaProperties()).putAllConsumerProperties(consumerConfig.getConsumerProperties()).setIsRegexPattern(false).build());
            } catch (JsonProcessingException e) {
                throw new IllegalArgumentException(String.format("Incorrect custom schema inputs,Topic %s ", topicName));
            }
        });
    }
    if (functionConfig.getInputSpecs() != null) {
        functionConfig.getInputSpecs().forEach((topicName, consumerConf) -> {
            Function.ConsumerSpec.Builder bldr = Function.ConsumerSpec.newBuilder().setIsRegexPattern(consumerConf.isRegexPattern());
            if (isNotBlank(consumerConf.getSchemaType())) {
                bldr.setSchemaType(consumerConf.getSchemaType());
            } else if (isNotBlank(consumerConf.getSerdeClassName())) {
                bldr.setSerdeClassName(consumerConf.getSerdeClassName());
            }
            if (consumerConf.getReceiverQueueSize() != null) {
                bldr.setReceiverQueueSize(Function.ConsumerSpec.ReceiverQueueSize.newBuilder().setValue(consumerConf.getReceiverQueueSize()).build());
            }
            if (consumerConf.getSchemaProperties() != null) {
                bldr.putAllSchemaProperties(consumerConf.getSchemaProperties());
            }
            if (consumerConf.getCryptoConfig() != null) {
                bldr.setCryptoSpec(CryptoUtils.convert(consumerConf.getCryptoConfig()));
            }
            bldr.putAllConsumerProperties(consumerConf.getConsumerProperties());
            bldr.setPoolMessages(consumerConf.isPoolMessages());
            sourceSpecBuilder.putInputSpecs(topicName, bldr.build());
        });
    }
    // Set subscription type
    Function.SubscriptionType subType;
    if ((functionConfig.getRetainOrdering() != null && functionConfig.getRetainOrdering()) || FunctionConfig.ProcessingGuarantees.EFFECTIVELY_ONCE.equals(functionConfig.getProcessingGuarantees())) {
        subType = Function.SubscriptionType.FAILOVER;
    } else if (functionConfig.getRetainKeyOrdering() != null && functionConfig.getRetainKeyOrdering()) {
        subType = Function.SubscriptionType.KEY_SHARED;
    } else {
        subType = Function.SubscriptionType.SHARED;
    }
    sourceSpecBuilder.setSubscriptionType(subType);
    // Set subscription name
    if (isNotBlank(functionConfig.getSubName())) {
        sourceSpecBuilder.setSubscriptionName(functionConfig.getSubName());
    }
    // Set subscription position
    if (functionConfig.getSubscriptionPosition() != null) {
        Function.SubscriptionPosition subPosition = null;
        if (SubscriptionInitialPosition.Earliest == functionConfig.getSubscriptionPosition()) {
            subPosition = Function.SubscriptionPosition.EARLIEST;
        } else {
            subPosition = Function.SubscriptionPosition.LATEST;
        }
        sourceSpecBuilder.setSubscriptionPosition(subPosition);
    }
    if (typeArgs != null) {
        sourceSpecBuilder.setTypeClassName(typeArgs[0].getName());
    }
    if (functionConfig.getTimeoutMs() != null) {
        sourceSpecBuilder.setTimeoutMs(functionConfig.getTimeoutMs());
        // We use negative acks for fast tracking failures
        sourceSpecBuilder.setNegativeAckRedeliveryDelayMs(functionConfig.getTimeoutMs());
    }
    if (functionConfig.getCleanupSubscription() != null) {
        sourceSpecBuilder.setCleanupSubscription(functionConfig.getCleanupSubscription());
    } else {
        sourceSpecBuilder.setCleanupSubscription(true);
    }
    functionDetailsBuilder.setSource(sourceSpecBuilder);
    // Setup sink
    Function.SinkSpec.Builder sinkSpecBuilder = Function.SinkSpec.newBuilder();
    if (functionConfig.getOutput() != null) {
        sinkSpecBuilder.setTopic(functionConfig.getOutput());
    }
    if (!StringUtils.isBlank(functionConfig.getOutputSerdeClassName())) {
        sinkSpecBuilder.setSerDeClassName(functionConfig.getOutputSerdeClassName());
    }
    if (!StringUtils.isBlank(functionConfig.getOutputSchemaType())) {
        sinkSpecBuilder.setSchemaType(functionConfig.getOutputSchemaType());
    }
    if (functionConfig.getForwardSourceMessageProperty() == Boolean.TRUE) {
        sinkSpecBuilder.setForwardSourceMessageProperty(functionConfig.getForwardSourceMessageProperty());
    }
    if (functionConfig.getCustomSchemaOutputs() != null && functionConfig.getOutput() != null) {
        String conf = functionConfig.getCustomSchemaOutputs().get(functionConfig.getOutput());
        try {
            if (StringUtils.isNotEmpty(conf)) {
                ConsumerConfig consumerConfig = OBJECT_MAPPER.readValue(conf, ConsumerConfig.class);
                sinkSpecBuilder.putAllSchemaProperties(consumerConfig.getSchemaProperties());
                sinkSpecBuilder.putAllConsumerProperties(consumerConfig.getConsumerProperties());
            }
        } catch (JsonProcessingException e) {
            throw new IllegalArgumentException(String.format("Incorrect custom schema outputs,Topic %s ", functionConfig.getOutput()));
        }
    }
    if (typeArgs != null) {
        sinkSpecBuilder.setTypeClassName(typeArgs[1].getName());
    }
    if (functionConfig.getProducerConfig() != null) {
        ProducerConfig producerConf = functionConfig.getProducerConfig();
        Function.ProducerSpec.Builder pbldr = Function.ProducerSpec.newBuilder();
        if (producerConf.getMaxPendingMessages() != null) {
            pbldr.setMaxPendingMessages(producerConf.getMaxPendingMessages());
        }
        if (producerConf.getMaxPendingMessagesAcrossPartitions() != null) {
            pbldr.setMaxPendingMessagesAcrossPartitions(producerConf.getMaxPendingMessagesAcrossPartitions());
        }
        if (producerConf.getUseThreadLocalProducers() != null) {
            pbldr.setUseThreadLocalProducers(producerConf.getUseThreadLocalProducers());
        }
        if (producerConf.getCryptoConfig() != null) {
            pbldr.setCryptoSpec(CryptoUtils.convert(producerConf.getCryptoConfig()));
        }
        if (producerConf.getBatchBuilder() != null) {
            pbldr.setBatchBuilder(producerConf.getBatchBuilder());
        }
        sinkSpecBuilder.setProducerSpec(pbldr.build());
    }
    functionDetailsBuilder.setSink(sinkSpecBuilder);
    if (functionConfig.getTenant() != null) {
        functionDetailsBuilder.setTenant(functionConfig.getTenant());
    }
    if (functionConfig.getNamespace() != null) {
        functionDetailsBuilder.setNamespace(functionConfig.getNamespace());
    }
    if (functionConfig.getName() != null) {
        functionDetailsBuilder.setName(functionConfig.getName());
    }
    if (functionConfig.getLogTopic() != null) {
        functionDetailsBuilder.setLogTopic(functionConfig.getLogTopic());
    }
    if (functionConfig.getRuntime() != null) {
        functionDetailsBuilder.setRuntime(FunctionCommon.convertRuntime(functionConfig.getRuntime()));
    }
    if (functionConfig.getProcessingGuarantees() != null) {
        functionDetailsBuilder.setProcessingGuarantees(FunctionCommon.convertProcessingGuarantee(functionConfig.getProcessingGuarantees()));
    }
    if (functionConfig.getRetainKeyOrdering() != null) {
        functionDetailsBuilder.setRetainKeyOrdering(functionConfig.getRetainKeyOrdering());
    }
    if (functionConfig.getRetainOrdering() != null) {
        functionDetailsBuilder.setRetainOrdering(functionConfig.getRetainOrdering());
    }
    if (functionConfig.getMaxMessageRetries() != null && functionConfig.getMaxMessageRetries() >= 0) {
        Function.RetryDetails.Builder retryBuilder = Function.RetryDetails.newBuilder();
        retryBuilder.setMaxMessageRetries(functionConfig.getMaxMessageRetries());
        if (isNotEmpty(functionConfig.getDeadLetterTopic())) {
            retryBuilder.setDeadLetterTopic(functionConfig.getDeadLetterTopic());
        }
        functionDetailsBuilder.setRetryDetails(retryBuilder);
    }
    Map<String, Object> configs = new HashMap<>();
    if (functionConfig.getUserConfig() != null) {
        configs.putAll(functionConfig.getUserConfig());
    }
    // windowing related
    WindowConfig windowConfig = functionConfig.getWindowConfig();
    if (windowConfig != null) {
        windowConfig.setActualWindowFunctionClassName(functionConfig.getClassName());
        configs.put(WindowConfig.WINDOW_CONFIG_KEY, windowConfig);
        // set class name to window function executor
        functionDetailsBuilder.setClassName("org.apache.pulsar.functions.windowing.WindowFunctionExecutor");
    } else {
        if (functionConfig.getClassName() != null) {
            functionDetailsBuilder.setClassName(functionConfig.getClassName());
        }
    }
    if (!configs.isEmpty()) {
        functionDetailsBuilder.setUserConfig(new Gson().toJson(configs));
    }
    if (functionConfig.getSecrets() != null && !functionConfig.getSecrets().isEmpty()) {
        functionDetailsBuilder.setSecretsMap(new Gson().toJson(functionConfig.getSecrets()));
    }
    if (functionConfig.getAutoAck() != null) {
        functionDetailsBuilder.setAutoAck(functionConfig.getAutoAck());
    } else {
        functionDetailsBuilder.setAutoAck(true);
    }
    if (functionConfig.getParallelism() != null) {
        functionDetailsBuilder.setParallelism(functionConfig.getParallelism());
    } else {
        functionDetailsBuilder.setParallelism(1);
    }
    // use default resources if resources not set
    Resources resources = Resources.mergeWithDefault(functionConfig.getResources());
    Function.Resources.Builder bldr = Function.Resources.newBuilder();
    bldr.setCpu(resources.getCpu());
    bldr.setRam(resources.getRam());
    bldr.setDisk(resources.getDisk());
    functionDetailsBuilder.setResources(bldr);
    if (!StringUtils.isEmpty(functionConfig.getRuntimeFlags())) {
        functionDetailsBuilder.setRuntimeFlags(functionConfig.getRuntimeFlags());
    }
    functionDetailsBuilder.setComponentType(FunctionDetails.ComponentType.FUNCTION);
    if (!StringUtils.isEmpty(functionConfig.getCustomRuntimeOptions())) {
        functionDetailsBuilder.setCustomRuntimeOptions(functionConfig.getCustomRuntimeOptions());
    }
    if (isBuiltin) {
        String builtin = functionConfig.getJar().replaceFirst("^builtin://", "");
        functionDetailsBuilder.setBuiltin(builtin);
    }
    return functionDetailsBuilder.build();
}

Example 5 with WindowConfig

use of org.apache.pulsar.common.functions.WindowConfig in project pulsar by apache.

the class FunctionConfigUtils method doCommonChecks.

private static void doCommonChecks(FunctionConfig functionConfig) {
    if (isEmpty(functionConfig.getTenant())) {
        throw new IllegalArgumentException("Function tenant cannot be null");
    }
    if (isEmpty(functionConfig.getNamespace())) {
        throw new IllegalArgumentException("Function namespace cannot be null");
    }
    if (isEmpty(functionConfig.getName())) {
        throw new IllegalArgumentException("Function name cannot be null");
    }
    // go doesn't need className
    if (functionConfig.getRuntime() == FunctionConfig.Runtime.PYTHON || functionConfig.getRuntime() == FunctionConfig.Runtime.JAVA) {
        if (isEmpty(functionConfig.getClassName())) {
            throw new IllegalArgumentException("Function classname cannot be null");
        }
    }
    Collection<String> allInputTopics = collectAllInputTopics(functionConfig);
    if (allInputTopics.isEmpty()) {
        throw new IllegalArgumentException("No input topic(s) specified for the function");
    }
    for (String topic : allInputTopics) {
        if (!TopicName.isValid(topic)) {
            throw new IllegalArgumentException(String.format("Input topic %s is invalid", topic));
        }
    }
    if (!isEmpty(functionConfig.getOutput())) {
        if (!TopicName.isValid(functionConfig.getOutput())) {
            throw new IllegalArgumentException(String.format("Output topic %s is invalid", functionConfig.getOutput()));
        }
    }
    if (!isEmpty(functionConfig.getLogTopic())) {
        if (!TopicName.isValid(functionConfig.getLogTopic())) {
            throw new IllegalArgumentException(String.format("LogTopic topic %s is invalid", functionConfig.getLogTopic()));
        }
    }
    if (!isEmpty(functionConfig.getDeadLetterTopic())) {
        if (!TopicName.isValid(functionConfig.getDeadLetterTopic())) {
            throw new IllegalArgumentException(String.format("DeadLetter topic %s is invalid", functionConfig.getDeadLetterTopic()));
        }
    }
    if (functionConfig.getParallelism() != null && functionConfig.getParallelism() <= 0) {
        throw new IllegalArgumentException("Function parallelism must be a positive number");
    }
    // Ensure that topics aren't being used as both input and output
    verifyNoTopicClash(allInputTopics, functionConfig.getOutput());
    WindowConfig windowConfig = functionConfig.getWindowConfig();
    if (windowConfig != null) {
        // for acking and not the function framework
        if (functionConfig.getAutoAck() != null && functionConfig.getAutoAck()) {
            throw new IllegalArgumentException("Cannot enable auto ack when using windowing functionality");
        }
        WindowConfigUtils.validate(windowConfig);
    }
    if (functionConfig.getResources() != null) {
        ResourceConfigUtils.validate(functionConfig.getResources());
    }
    if (functionConfig.getTimeoutMs() != null && functionConfig.getTimeoutMs() <= 0) {
        throw new IllegalArgumentException("Function timeout must be a positive number");
    }
    if (functionConfig.getTimeoutMs() != null && functionConfig.getProcessingGuarantees() != null && functionConfig.getProcessingGuarantees() != FunctionConfig.ProcessingGuarantees.ATLEAST_ONCE) {
        throw new IllegalArgumentException("Message timeout can only be specified with processing guarantee is " + FunctionConfig.ProcessingGuarantees.ATLEAST_ONCE.name());
    }
    if (functionConfig.getMaxMessageRetries() != null && functionConfig.getMaxMessageRetries() >= 0 && functionConfig.getProcessingGuarantees() == FunctionConfig.ProcessingGuarantees.EFFECTIVELY_ONCE) {
        throw new IllegalArgumentException("MaxMessageRetries and Effectively once don't gel well");
    }
    if ((functionConfig.getMaxMessageRetries() == null || functionConfig.getMaxMessageRetries() < 0) && !org.apache.commons.lang3.StringUtils.isEmpty(functionConfig.getDeadLetterTopic())) {
        throw new IllegalArgumentException("Dead Letter Topic specified, however max retries is set to infinity");
    }
    if (functionConfig.getRetainKeyOrdering() != null && functionConfig.getRetainKeyOrdering() && functionConfig.getProcessingGuarantees() != null && functionConfig.getProcessingGuarantees() == FunctionConfig.ProcessingGuarantees.EFFECTIVELY_ONCE) {
        throw new IllegalArgumentException("When effectively once processing guarantee is specified, retain Key ordering cannot be set");
    }
    if (functionConfig.getRetainKeyOrdering() != null && functionConfig.getRetainKeyOrdering() && functionConfig.getRetainOrdering() != null && functionConfig.getRetainOrdering()) {
        throw new IllegalArgumentException("Only one of retain ordering or retain key ordering can be set");
    }
    if (!isEmpty(functionConfig.getPy()) && !org.apache.pulsar.common.functions.Utils.isFunctionPackageUrlSupported(functionConfig.getPy()) && functionConfig.getPy().startsWith(BUILTIN)) {
        if (!new File(functionConfig.getPy()).exists()) {
            throw new IllegalArgumentException("The supplied python file does not exist");
        }
    }
    if (!isEmpty(functionConfig.getGo()) && !org.apache.pulsar.common.functions.Utils.isFunctionPackageUrlSupported(functionConfig.getGo()) && functionConfig.getGo().startsWith(BUILTIN)) {
        if (!new File(functionConfig.getGo()).exists()) {
            throw new IllegalArgumentException("The supplied go file does not exist");
        }
    }
    if (functionConfig.getInputSpecs() != null) {
        functionConfig.getInputSpecs().forEach((topicName, conf) -> {
            // receiver queue size should be >= 0
            if (conf.getReceiverQueueSize() != null && conf.getReceiverQueueSize() < 0) {
                throw new IllegalArgumentException("Receiver queue size should be >= zero");
            }
            if (conf.getCryptoConfig() != null && isBlank(conf.getCryptoConfig().getCryptoKeyReaderClassName())) {
                throw new IllegalArgumentException("CryptoKeyReader class name required");
            }
        });
    }
    if (functionConfig.getProducerConfig() != null && functionConfig.getProducerConfig().getCryptoConfig() != null) {
        if (isBlank(functionConfig.getProducerConfig().getCryptoConfig().getCryptoKeyReaderClassName())) {
            throw new IllegalArgumentException("CryptoKeyReader class name required");
        }
        if (functionConfig.getProducerConfig().getCryptoConfig().getEncryptionKeys() == null || functionConfig.getProducerConfig().getCryptoConfig().getEncryptionKeys().length == 0) {
            throw new IllegalArgumentException("Must provide encryption key name for crypto key reader");
        }
    }
}