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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.pulsar.admin.cli;
import static org.apache.commons.lang.StringUtils.isBlank;
import static org.apache.commons.lang.StringUtils.isNotBlank;
import static org.apache.pulsar.common.naming.TopicName.DEFAULT_NAMESPACE;
import static org.apache.pulsar.common.naming.TopicName.PUBLIC_TENANT;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.ParameterException;
import com.beust.jcommander.Parameters;
import com.beust.jcommander.converters.StringConverter;
import com.google.common.annotations.VisibleForTesting;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
import java.io.File;
import java.lang.reflect.Field;
import java.lang.reflect.Type;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.function.Supplier;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.text.WordUtils;
import org.apache.pulsar.admin.cli.utils.CmdUtils;
import org.apache.pulsar.client.admin.PulsarAdmin;
import org.apache.pulsar.client.admin.PulsarAdminException;
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.api.SubscriptionInitialPosition;
import org.apache.pulsar.common.functions.ConsumerConfig;
import org.apache.pulsar.common.functions.FunctionConfig;
import org.apache.pulsar.common.functions.FunctionState;
import org.apache.pulsar.common.functions.ProducerConfig;
import org.apache.pulsar.common.functions.Resources;
import org.apache.pulsar.common.functions.UpdateOptionsImpl;
import org.apache.pulsar.common.functions.Utils;
import org.apache.pulsar.common.functions.WindowConfig;
import org.apache.pulsar.common.util.ObjectMapperFactory;
@Slf4j
@Parameters(commandDescription = "Interface for managing Pulsar Functions "
+ "(lightweight, Lambda-style compute processes that work with Pulsar)")
public class CmdFunctions extends CmdBase {
private final LocalRunner localRunner;
private final CreateFunction creater;
private final DeleteFunction deleter;
private final UpdateFunction updater;
private final GetFunction getter;
private final GetFunctionStatus functionStatus;
@Getter
private final GetFunctionStats functionStats;
private final RestartFunction restart;
private final StopFunction stop;
private final StartFunction start;
private final ListFunctions lister;
private final StateGetter stateGetter;
private final StatePutter statePutter;
private final TriggerFunction triggerer;
private final UploadFunction uploader;
private final DownloadFunction downloader;
/**
* Base command.
*/
@Getter
abstract class BaseCommand extends CliCommand {
@Override
void run() throws Exception {
try {
processArguments();
} catch (Exception e) {
System.err.println(e.getMessage());
System.err.println();
String chosenCommand = jcommander.getParsedCommand();
getUsageFormatter().usage(chosenCommand);
return;
}
runCmd();
}
void processArguments() throws Exception {}
abstract void runCmd() throws Exception;
}
/**
* Namespace level command.
*/
@Getter
abstract class NamespaceCommand extends BaseCommand {
@Parameter(names = "--tenant", description = "The tenant of a Pulsar Function")
protected String tenant;
@Parameter(names = "--namespace", description = "The namespace of a Pulsar Function")
protected String namespace;
@Override
public void processArguments() {
if (tenant == null) {
tenant = PUBLIC_TENANT;
}
if (namespace == null) {
namespace = DEFAULT_NAMESPACE;
}
}
}
/**
* Function level command.
*/
@Getter
abstract class FunctionCommand extends BaseCommand {
@Parameter(names = "--fqfn", description = "The Fully Qualified Function Name (FQFN) for the function")
protected String fqfn;
@Parameter(names = "--tenant", description = "The tenant of a Pulsar Function")
protected String tenant;
@Parameter(names = "--namespace", description = "The namespace of a Pulsar Function")
protected String namespace;
@Parameter(names = "--name", description = "The name of a Pulsar Function")
protected String functionName;
@Override
void processArguments() throws Exception {
super.processArguments();
boolean usesSetters = (null != tenant || null != namespace || null != functionName);
boolean usesFqfn = (null != fqfn);
// Throw an exception if --fqfn is set alongside any combination of --tenant, --namespace, and --name
if (usesFqfn && usesSetters) {
throw new RuntimeException("You must specify either a Fully Qualified Function Name (FQFN) "
+ "or tenant, namespace, and function name");
} else if (usesFqfn) {
// If the --fqfn flag is used, parse tenant, namespace, and name using that flag
String[] fqfnParts = fqfn.split("/");
if (fqfnParts.length != 3) {
throw new RuntimeException(
"Fully qualified function names (FQFNs) must be of the form tenant/namespace/name");
}
tenant = fqfnParts[0];
namespace = fqfnParts[1];
functionName = fqfnParts[2];
} else {
if (tenant == null) {
tenant = PUBLIC_TENANT;
}
if (namespace == null) {
namespace = DEFAULT_NAMESPACE;
}
if (null == functionName) {
throw new RuntimeException(
"You must specify a name for the function or a Fully Qualified Function Name (FQFN)");
}
}
}
}
/**
* Commands that require a function config.
*/
@Getter
abstract class FunctionDetailsCommand extends BaseCommand {
@Parameter(names = "--fqfn", description = "The Fully Qualified Function Name (FQFN) for the function"
+ " #Java, Python")
protected String fqfn;
@Parameter(names = "--tenant", description = "The tenant of a Pulsar Function #Java, Python, Go")
protected String tenant;
@Parameter(names = "--namespace", description = "The namespace of a Pulsar Function #Java, Python, Go")
protected String namespace;
@Parameter(names = "--name", description = "The name of a Pulsar Function #Java, Python, Go")
protected String functionName;
// for backwards compatibility purposes
@Parameter(names = "--className", description = "The class name of a Pulsar Function", hidden = true)
protected String deprecatedClassName;
@Parameter(names = "--classname", description = "The class name of a Pulsar Function #Java, Python")
protected String className;
@Parameter(names = { "-t", "--function-type" }, description = "The built-in Pulsar Function type")
protected String functionType;
@Parameter(names = "--jar", description = "Path to the JAR file for the function "
+ "(if the function is written in Java). It also supports URL path [http/https/file "
+ "(file protocol assumes that file already exists on worker host)/function "
+ "(package URL from packages management service)] from which worker can download the package. #Java",
listConverter = StringConverter.class)
protected String jarFile;
@Parameter(names = "--py", description = "Path to the main Python file/Python Wheel file for the function "
+ "(if the function is written in Python). It also supports URL path [http/https/file "
+ "(file protocol assumes that file already exists on worker host)/function "
+ "(package URL from packages management service)] from which worker can download the package. #Python",
listConverter = StringConverter.class)
protected String pyFile;
@Parameter(names = "--go", description = "Path to the main Go executable binary for the function "
+ "(if the function is written in Go). It also supports URL path [http/https/file "
+ "(file protocol assumes that file already exists on worker host)/function "
+ "(package URL from packages management service)] from which worker can download the package. #Go")
protected String goFile;
@Parameter(names = {"-i", "--inputs"}, description = "The input topic or "
+ "topics (multiple topics can be specified as a comma-separated list) of a Pulsar Function"
+ " #Java, Python, Go")
protected String inputs;
// for backwards compatibility purposes
@Parameter(names = "--topicsPattern", description = "TopicsPattern to consume from list of topics "
+ "under a namespace that match the pattern. [--input] and [--topic-pattern] are mutually exclusive. "
+ "Add SerDe class name for a pattern in --custom-serde-inputs (supported for java fun only)",
hidden = true)
protected String deprecatedTopicsPattern;
@Parameter(names = "--topics-pattern", description = "The topic pattern to consume from a list of topics "
+ "under a namespace that matches the pattern. [--input] and [--topics-pattern] are mutually "
+ "exclusive. Add SerDe class name for a pattern in --custom-serde-inputs (supported for java "
+ "functions only) #Java, Python")
protected String topicsPattern;
@Parameter(names = {"-o", "--output"},
description = "The output topic of a Pulsar Function (If none is specified, no output is written)"
+ " #Java, Python, Go")
protected String output;
@Parameter(names = "--producer-config", description = "The custom producer configuration (as a JSON string)"
+ " #Java")
protected String producerConfig;
// for backwards compatibility purposes
@Parameter(names = "--logTopic",
description = "The topic to which the logs of a Pulsar Function are produced", hidden = true)
protected String deprecatedLogTopic;
@Parameter(names = "--log-topic", description = "The topic to which the logs of a Pulsar Function are produced"
+ " #Java, Python, Go")
protected String logTopic;
@Parameter(names = {"-st", "--schema-type"}, description = "The builtin schema type or "
+ "custom schema class name to be used for messages output by the function #Java")
protected String schemaType = "";
// for backwards compatibility purposes
@Parameter(names = "--customSerdeInputs",
description = "The map of input topics to SerDe class names (as a JSON string)", hidden = true)
protected String deprecatedCustomSerdeInputString;
@Parameter(names = "--custom-serde-inputs",
description = "The map of input topics to SerDe class names (as a JSON string) #Java, Python")
protected String customSerdeInputString;
@Parameter(names = "--custom-schema-inputs",
description = "The map of input topics to Schema properties (as a JSON string) #Java, Python")
protected String customSchemaInputString;
@Parameter(names = "--custom-schema-outputs",
description = "The map of input topics to Schema properties (as a JSON string) #Java")
protected String customSchemaOutputString;
@Parameter(names = "--input-specs",
description = "The map of inputs to custom configuration (as a JSON string) #Java, Python, Go")
protected String inputSpecs;
@Parameter(names = "--input-type-class-name",
description = "The class name of input type class #Java, Python, Go")
protected String inputTypeClassName;
// for backwards compatibility purposes
@Parameter(names = "--outputSerdeClassName",
description = "The SerDe class to be used for messages output by the function", hidden = true)
protected String deprecatedOutputSerdeClassName;
@Parameter(names = "--output-serde-classname",
description = "The SerDe class to be used for messages output by the function #Java, Python")
protected String outputSerdeClassName;
@Parameter(names = "--output-type-class-name",
description = "The class name of output type class #Java, Python, Go")
protected String outputTypeClassName;
// for backwards compatibility purposes
@Parameter(names = "--functionConfigFile", description = "The path to a YAML config file that specifies "
+ "the configuration of a Pulsar Function", hidden = true)
protected String deprecatedFnConfigFile;
@Parameter(names = "--function-config-file",
description = "The path to a YAML config file that specifies the configuration of a Pulsar Function"
+ " #Java, Python, Go")
protected String fnConfigFile;
// for backwards compatibility purposes
@Parameter(names = "--processingGuarantees", description = "The processing guarantees (aka delivery semantics) "
+ "applied to the function", hidden = true)
protected FunctionConfig.ProcessingGuarantees deprecatedProcessingGuarantees;
@Parameter(names = "--processing-guarantees",
description = "The processing guarantees (as known as delivery semantics) applied to the function."
+ " Available values are: `ATLEAST_ONCE`, `ATMOST_ONCE`, `EFFECTIVELY_ONCE`."
+ " If it is not specified, the `ATLEAST_ONCE` delivery guarantee is used."
+ " #Java, Python, Go")
protected FunctionConfig.ProcessingGuarantees processingGuarantees;
// for backwards compatibility purposes
@Parameter(names = "--userConfig", description = "User-defined config key/values", hidden = true)
protected String deprecatedUserConfigString;
@Parameter(names = "--user-config", description = "User-defined config key/values #Java, Python, Go")
protected String userConfigString;
@Parameter(names = "--retainOrdering",
description = "Function consumes and processes messages in order", hidden = true)
protected Boolean deprecatedRetainOrdering;
@Parameter(names = "--retain-ordering", description = "Function consumes and processes messages in order #Java")
protected Boolean retainOrdering;
@Parameter(names = "--retain-key-ordering",
description = "Function consumes and processes messages in key order #Java")
protected Boolean retainKeyOrdering;
@Parameter(names = "--batch-builder", description = "BatcherBuilder provides two types of "
+ "batch construction methods, DEFAULT and KEY_BASED. The default value is: DEFAULT")
protected String batchBuilder;
@Parameter(names = "--forward-source-message-property", description = "Forwarding input message's properties "
+ "to output topic when processing (use false to disable it) #Java", arity = 1)
protected Boolean forwardSourceMessageProperty = true;
@Parameter(names = "--subs-name", description = "Pulsar source subscription name if user wants a specific "
+ "subscription-name for input-topic consumer #Java, Python, Go")
protected String subsName;
@Parameter(names = "--subs-position", description = "Pulsar source subscription position if user wants to "
+ "consume messages from the specified location #Java")
protected SubscriptionInitialPosition subsPosition;
@Parameter(names = "--skip-to-latest", description = "Whether or not the consumer skip to latest message "
+ "upon function instance restart", arity = 1)
protected Boolean skipToLatest;
@Parameter(names = "--parallelism", description = "The parallelism factor of a Pulsar Function "
+ "(i.e. the number of function instances to run) #Java")
protected Integer parallelism;
@Parameter(names = "--cpu", description = "The cpu in cores that need to be allocated "
+ "per function instance(applicable only to docker runtime) #Java(Process & K8s),Python(K8s),Go(K8s)")
protected Double cpu;
@Parameter(names = "--ram", description = "The ram in bytes that need to be allocated "
+ "per function instance(applicable only to process/docker runtime)"
+ " #Java(Process & K8s),Python(K8s),Go(K8s)")
protected Long ram;
@Parameter(names = "--disk", description = "The disk in bytes that need to be allocated "
+ "per function instance(applicable only to docker runtime) #Java(Process & K8s),Python(K8s),Go(K8s)")
protected Long disk;
// for backwards compatibility purposes
@Parameter(names = "--windowLengthCount", description = "The number of messages per window", hidden = true)
protected Integer deprecatedWindowLengthCount;
@Parameter(names = "--window-length-count", description = "The number of messages per window #Java")
protected Integer windowLengthCount;
// for backwards compatibility purposes
@Parameter(names = "--windowLengthDurationMs",
description = "The time duration of the window in milliseconds", hidden = true)
protected Long deprecatedWindowLengthDurationMs;
@Parameter(names = "--window-length-duration-ms",
description = "The time duration of the window in milliseconds #Java")
protected Long windowLengthDurationMs;
// for backwards compatibility purposes
@Parameter(names = "--slidingIntervalCount",
description = "The number of messages after which the window slides", hidden = true)
protected Integer deprecatedSlidingIntervalCount;
@Parameter(names = "--sliding-interval-count",
description = "The number of messages after which the window slides #Java")
protected Integer slidingIntervalCount;
// for backwards compatibility purposes
@Parameter(names = "--slidingIntervalDurationMs",
description = "The time duration after which the window slides", hidden = true)
protected Long deprecatedSlidingIntervalDurationMs;
@Parameter(names = "--sliding-interval-duration-ms",
description = "The time duration after which the window slides #Java")
protected Long slidingIntervalDurationMs;
// for backwards compatibility purposes
@Parameter(names = "--autoAck",
description = "Whether or not the framework acknowledges messages automatically", hidden = true)
protected Boolean deprecatedAutoAck = null;
@Parameter(names = "--auto-ack",
description = "Whether or not the framework acknowledges messages automatically"
+ " #Java, Python, Go", arity = 1)
protected Boolean autoAck;
// for backwards compatibility purposes
@Parameter(names = "--timeoutMs", description = "The message timeout in milliseconds", hidden = true)
protected Long deprecatedTimeoutMs;
@Parameter(names = "--timeout-ms", description = "The message timeout in milliseconds #Java, Python")
protected Long timeoutMs;
@Parameter(names = "--max-message-retries",
description = "How many times should we try to process a message before giving up #Java")
protected Integer maxMessageRetries;
@Parameter(names = "--custom-runtime-options", description = "A string that encodes options to "
+ "customize the runtime, see docs for configured runtime for details #Java")
protected String customRuntimeOptions;
@Parameter(names = "--secrets", description = "The map of secretName to an object that encapsulates "
+ "how the secret is fetched by the underlying secrets provider #Java, Python")
protected String secretsString;
@Parameter(names = "--dead-letter-topic",
description = "The topic where messages that are not processed successfully are sent to #Java")
protected String deadLetterTopic;
protected FunctionConfig functionConfig;
protected String userCodeFile;
private void mergeArgs() {
if (isBlank(className) && !isBlank(deprecatedClassName)) {
className = deprecatedClassName;
}
if (isBlank(topicsPattern) && !isBlank(deprecatedTopicsPattern)) {
topicsPattern = deprecatedTopicsPattern;
}
if (isBlank(logTopic) && !isBlank(deprecatedLogTopic)) {
logTopic = deprecatedLogTopic;
}
if (isBlank(outputSerdeClassName) && !isBlank(deprecatedOutputSerdeClassName)) {
outputSerdeClassName = deprecatedOutputSerdeClassName;
}
if (isBlank(customSerdeInputString) && !isBlank(deprecatedCustomSerdeInputString)) {
customSerdeInputString = deprecatedCustomSerdeInputString;
}
if (isBlank(fnConfigFile) && !isBlank(deprecatedFnConfigFile)) {
fnConfigFile = deprecatedFnConfigFile;
}
if (processingGuarantees == null && deprecatedProcessingGuarantees != null) {
processingGuarantees = deprecatedProcessingGuarantees;
}
if (isBlank(userConfigString) && !isBlank(deprecatedUserConfigString)) {
userConfigString = deprecatedUserConfigString;
}
if (retainOrdering == null && deprecatedRetainOrdering != null) {
retainOrdering = deprecatedRetainOrdering;
}
if (windowLengthCount == null && deprecatedWindowLengthCount != null) {
windowLengthCount = deprecatedWindowLengthCount;
}
if (windowLengthDurationMs == null && deprecatedWindowLengthDurationMs != null) {
windowLengthDurationMs = deprecatedWindowLengthDurationMs;
}
if (slidingIntervalCount == null && deprecatedSlidingIntervalCount != null) {
slidingIntervalCount = deprecatedSlidingIntervalCount;
}
if (slidingIntervalDurationMs == null && deprecatedSlidingIntervalDurationMs != null) {
slidingIntervalDurationMs = deprecatedSlidingIntervalDurationMs;
}
if (autoAck == null && deprecatedAutoAck != null) {
autoAck = deprecatedAutoAck;
}
if (timeoutMs == null && deprecatedTimeoutMs != null) {
timeoutMs = deprecatedTimeoutMs;
}
}
@Override
void processArguments() throws Exception {
super.processArguments();
// merge deprecated args with new args
mergeArgs();
// Initialize config builder either from a supplied YAML config file or from scratch
if (null != fnConfigFile) {
functionConfig = CmdUtils.loadConfig(fnConfigFile, FunctionConfig.class);
} else {
functionConfig = new FunctionConfig();
}
if (null != fqfn) {
parseFullyQualifiedFunctionName(fqfn, functionConfig);
} else {
if (null != tenant) {
functionConfig.setTenant(tenant);
}
if (null != namespace) {
functionConfig.setNamespace(namespace);
}
if (null != functionName) {
functionConfig.setName(functionName);
}
}
if (null != inputs) {
List inputTopics = Arrays.asList(inputs.split(","));
functionConfig.setInputs(inputTopics);
}
if (null != customSerdeInputString) {
Type type = new TypeToken>() {}.getType();
Map customSerdeInputMap = new Gson().fromJson(customSerdeInputString, type);
functionConfig.setCustomSerdeInputs(customSerdeInputMap);
}
if (null != customSchemaInputString) {
Type type = new TypeToken>() {}.getType();
Map customschemaInputMap = new Gson().fromJson(customSchemaInputString, type);
functionConfig.setCustomSchemaInputs(customschemaInputMap);
}
if (null != customSchemaOutputString) {
Type type = new TypeToken>() {}.getType();
Map customSchemaOutputMap = new Gson().fromJson(customSchemaOutputString, type);
functionConfig.setCustomSchemaOutputs(customSchemaOutputMap);
}
if (null != inputSpecs) {
Type type = new TypeToken>() {}.getType();
functionConfig.setInputSpecs(new Gson().fromJson(inputSpecs, type));
}
if (null != inputTypeClassName) {
functionConfig.setInputTypeClassName(inputTypeClassName);
}
if (null != topicsPattern) {
functionConfig.setTopicsPattern(topicsPattern);
}
if (null != output) {
functionConfig.setOutput(output);
}
if (null != outputTypeClassName) {
functionConfig.setOutputTypeClassName(outputTypeClassName);
}
if (null != producerConfig) {
Type type = new TypeToken() {}.getType();
functionConfig.setProducerConfig(new Gson().fromJson(producerConfig, type));
}
if (null != logTopic) {
functionConfig.setLogTopic(logTopic);
}
if (null != className) {
functionConfig.setClassName(className);
}
if (null != outputSerdeClassName) {
functionConfig.setOutputSerdeClassName(outputSerdeClassName);
}
if (null != schemaType) {
functionConfig.setOutputSchemaType(schemaType);
}
if (null != processingGuarantees) {
functionConfig.setProcessingGuarantees(processingGuarantees);
}
if (null != retainOrdering) {
functionConfig.setRetainOrdering(retainOrdering);
}
if (null != retainKeyOrdering) {
functionConfig.setRetainKeyOrdering(retainKeyOrdering);
}
if (isNotBlank(batchBuilder)) {
functionConfig.setBatchBuilder(batchBuilder);
}
if (null != forwardSourceMessageProperty) {
functionConfig.setForwardSourceMessageProperty(forwardSourceMessageProperty);
}
if (isNotBlank(subsName)) {
functionConfig.setSubName(subsName);
}
if (null != subsPosition) {
functionConfig.setSubscriptionPosition(subsPosition);
}
if (null != skipToLatest) {
functionConfig.setSkipToLatest(skipToLatest);
}
if (null != userConfigString) {
Type type = new TypeToken>() {}.getType();
Map userConfigMap = new Gson().fromJson(userConfigString, type);
if (userConfigMap == null) {
userConfigMap = new HashMap<>();
}
functionConfig.setUserConfig(userConfigMap);
}
if (parallelism != null) {
functionConfig.setParallelism(parallelism);
}
Resources resources = functionConfig.getResources();
if (cpu != null) {
if (resources == null) {
resources = new Resources();
}
resources.setCpu(cpu);
}
if (ram != null) {
if (resources == null) {
resources = new Resources();
}
resources.setRam(ram);
}
if (disk != null) {
if (resources == null) {
resources = new Resources();
}
resources.setDisk(disk);
}
if (resources != null) {
functionConfig.setResources(resources);
}
if (timeoutMs != null) {
functionConfig.setTimeoutMs(timeoutMs);
}
if (customRuntimeOptions != null) {
functionConfig.setCustomRuntimeOptions(customRuntimeOptions);
}
if (secretsString != null) {
Type type = new TypeToken>() {}.getType();
Map secretsMap = new Gson().fromJson(secretsString, type);
if (secretsMap == null) {
secretsMap = Collections.emptyMap();
}
functionConfig.setSecrets(secretsMap);
}
// window configs
WindowConfig windowConfig = functionConfig.getWindowConfig();
if (null != windowLengthCount) {
if (windowConfig == null) {
windowConfig = new WindowConfig();
}
windowConfig.setWindowLengthCount(windowLengthCount);
}
if (null != windowLengthDurationMs) {
if (windowConfig == null) {
windowConfig = new WindowConfig();
}
windowConfig.setWindowLengthDurationMs(windowLengthDurationMs);
}
if (null != slidingIntervalCount) {
if (windowConfig == null) {
windowConfig = new WindowConfig();
}
windowConfig.setSlidingIntervalCount(slidingIntervalCount);
}
if (null != slidingIntervalDurationMs) {
if (windowConfig == null) {
windowConfig = new WindowConfig();
}
windowConfig.setSlidingIntervalDurationMs(slidingIntervalDurationMs);
}
functionConfig.setWindowConfig(windowConfig);
if (autoAck != null) {
functionConfig.setAutoAck(autoAck);
}
if (null != maxMessageRetries) {
functionConfig.setMaxMessageRetries(maxMessageRetries);
}
if (null != deadLetterTopic) {
functionConfig.setDeadLetterTopic(deadLetterTopic);
}
if (jarFile != null && functionType != null) {
throw new ParameterException("Cannot specify both jar and function-type");
}
if (null != jarFile) {
functionConfig.setJar(jarFile);
}
if (functionType != null) {
functionConfig.setJar("builtin://" + functionType);
} else if (functionConfig.getFunctionType() != null) {
functionConfig.setJar("builtin://" + functionConfig.getFunctionType());
}
if (null != pyFile) {
functionConfig.setPy(pyFile);
}
if (null != goFile) {
functionConfig.setGo(goFile);
}
if (functionConfig.getJar() != null) {
userCodeFile = functionConfig.getJar();
} else if (functionConfig.getPy() != null) {
userCodeFile = functionConfig.getPy();
} else if (functionConfig.getGo() != null) {
userCodeFile = functionConfig.getGo();
}
// check if configs are valid
validateFunctionConfigs(functionConfig);
}
protected void validateFunctionConfigs(FunctionConfig functionConfig) {
// go doesn't need className
if (functionConfig.getPy() != null
|| (functionConfig.getJar() != null && !functionConfig.getJar().startsWith("builtin://"))) {
if (StringUtils.isEmpty(functionConfig.getClassName())) {
throw new ParameterException("No Function Classname specified");
}
}
if (StringUtils.isEmpty(functionConfig.getName())) {
org.apache.pulsar.common.functions.Utils.inferMissingFunctionName(functionConfig);
}
if (StringUtils.isEmpty(functionConfig.getName())) {
throw new IllegalArgumentException("No Function name specified");
}
if (StringUtils.isEmpty(functionConfig.getTenant())) {
org.apache.pulsar.common.functions.Utils.inferMissingTenant(functionConfig);
}
if (StringUtils.isEmpty(functionConfig.getNamespace())) {
org.apache.pulsar.common.functions.Utils.inferMissingNamespace(functionConfig);
}
if (isNotBlank(functionConfig.getJar()) && isNotBlank(functionConfig.getPy())
&& isNotBlank(functionConfig.getGo())) {
throw new ParameterException("Either a Java jar or a Python file or a Go executable binary needs to"
+ " be specified for the function. Cannot specify both.");
}
if (isBlank(functionConfig.getJar()) && isBlank(functionConfig.getPy())
&& isBlank(functionConfig.getGo())) {
throw new ParameterException("Either a Java jar or a Python file or a Go executable binary needs to"
+ " be specified for the function. Please specify one.");
}
if (!isBlank(functionConfig.getJar()) && !functionConfig.getJar().startsWith("builtin://")
&& !Utils.isFunctionPackageUrlSupported(functionConfig.getJar())
&& !new File(functionConfig.getJar()).exists()) {
throw new ParameterException("The specified jar file does not exist");
}
if (!isBlank(functionConfig.getPy()) && !Utils.isFunctionPackageUrlSupported(functionConfig.getPy())
&& !new File(functionConfig.getPy()).exists()) {
throw new ParameterException("The specified python file does not exist");
}
if (!isBlank(functionConfig.getGo()) && !Utils.isFunctionPackageUrlSupported(functionConfig.getGo())
&& !new File(functionConfig.getGo()).exists()) {
throw new ParameterException("The specified go executable binary does not exist");
}
}
}
@Parameters(commandDescription = "Run a Pulsar Function locally, rather than deploy to a Pulsar cluster)")
class LocalRunner extends FunctionDetailsCommand {
// TODO: this should become BookKeeper URL and it should be fetched from Pulsar client.
// for backwards compatibility purposes
@Parameter(names = "--stateStorageServiceUrl", description = "The URL for the state storage service "
+ "(the default is Apache BookKeeper)", hidden = true)
protected String deprecatedStateStorageServiceUrl;
@Parameter(names = "--state-storage-service-url", description = "The URL for the state storage service "
+ "(the default is Apache BookKeeper) #Java, Python")
protected String stateStorageServiceUrl;
// for backwards compatibility purposes
@Parameter(names = "--brokerServiceUrl", description = "The URL for Pulsar broker", hidden = true)
protected String deprecatedBrokerServiceUrl;
@Parameter(names = "--broker-service-url", description = "The URL for Pulsar broker #Java, Python, Go")
protected String brokerServiceUrl;
@Parameter(names = "--web-service-url", description = "The URL for Pulsar web service #Java, Python")
protected String webServiceUrl = null;
// for backwards compatibility purposes
@Parameter(names = "--clientAuthPlugin", description = "Client authentication plugin using "
+ "which function-process can connect to broker", hidden = true)
protected String deprecatedClientAuthPlugin;
@Parameter(names = "--client-auth-plugin",
description = "Client authentication plugin using which function-process can connect to broker"
+ " #Java, Python")
protected String clientAuthPlugin;
// for backwards compatibility purposes
@Parameter(names = "--clientAuthParams", description = "Client authentication param", hidden = true)
protected String deprecatedClientAuthParams;
@Parameter(names = "--client-auth-params", description = "Client authentication param #Java, Python")
protected String clientAuthParams;
// for backwards compatibility purposes
@Parameter(names = "--use_tls", description = "Use tls connection", hidden = true)
protected Boolean deprecatedUseTls = null;
@Parameter(names = "--use-tls", description = "Use tls connection #Java, Python")
protected boolean useTls;
// for backwards compatibility purposes
@Parameter(names = "--tls_allow_insecure", description = "Allow insecure tls connection", hidden = true)
protected Boolean deprecatedTlsAllowInsecureConnection = null;
@Parameter(names = "--tls-allow-insecure", description = "Allow insecure tls connection #Java, Python")
protected boolean tlsAllowInsecureConnection;
// for backwards compatibility purposes
@Parameter(names = "--hostname_verification_enabled",
description = "Enable hostname verification", hidden = true)
protected Boolean deprecatedTlsHostNameVerificationEnabled = null;
@Parameter(names = "--hostname-verification-enabled", description = "Enable hostname verification"
+ " #Java, Python")
protected boolean tlsHostNameVerificationEnabled;
// for backwards compatibility purposes
@Parameter(names = "--tls_trust_cert_path", description = "tls trust cert file path", hidden = true)
protected String deprecatedTlsTrustCertFilePath;
@Parameter(names = "--tls-trust-cert-path", description = "tls trust cert file path #Java, Python")
protected String tlsTrustCertFilePath;
// for backwards compatibility purposes
@Parameter(names = "--instanceIdOffset", description = "Start the instanceIds from this offset", hidden = true)
protected Integer deprecatedInstanceIdOffset = null;
@Parameter(names = "--instance-id-offset", description = "Start the instanceIds from this offset #Java, Python")
protected Integer instanceIdOffset = 0;
@Parameter(names = "--runtime", description = "either THREAD or PROCESS. Only applies for Java functions #Java")
protected String runtime;
@Parameter(names = "--secrets-provider-classname", description = "Whats the classname for secrets provider"
+ " #Java, Python")
protected String secretsProviderClassName;
@Parameter(names = "--secrets-provider-config",
description = "Config that needs to be passed to secrets provider #Java, Python")
protected String secretsProviderConfig;
@Parameter(names = "--metrics-port-start", description = "The starting port range for metrics server"
+ " #Java, Python, Go")
protected String metricsPortStart;
private void mergeArgs() {
if (isBlank(stateStorageServiceUrl) && !isBlank(deprecatedStateStorageServiceUrl)) {
stateStorageServiceUrl = deprecatedStateStorageServiceUrl;
}
if (isBlank(brokerServiceUrl) && !isBlank(deprecatedBrokerServiceUrl)) {
brokerServiceUrl = deprecatedBrokerServiceUrl;
}
if (isBlank(clientAuthPlugin) && !isBlank(deprecatedClientAuthPlugin)) {
clientAuthPlugin = deprecatedClientAuthPlugin;
}
if (isBlank(clientAuthParams) && !isBlank(deprecatedClientAuthParams)) {
clientAuthParams = deprecatedClientAuthParams;
}
if (!useTls && deprecatedUseTls != null) {
useTls = deprecatedUseTls;
}
if (!tlsAllowInsecureConnection && deprecatedTlsAllowInsecureConnection != null) {
tlsAllowInsecureConnection = deprecatedTlsAllowInsecureConnection;
}
if (!tlsHostNameVerificationEnabled && deprecatedTlsHostNameVerificationEnabled != null) {
tlsHostNameVerificationEnabled = deprecatedTlsHostNameVerificationEnabled;
}
if (isBlank(tlsTrustCertFilePath) && !isBlank(deprecatedTlsTrustCertFilePath)) {
tlsTrustCertFilePath = deprecatedTlsTrustCertFilePath;
}
if (instanceIdOffset == null && deprecatedInstanceIdOffset != null) {
instanceIdOffset = deprecatedInstanceIdOffset;
}
}
@Override
void runCmd() throws Exception {
// merge deprecated args with new args
mergeArgs();
List localRunArgs = new LinkedList<>();
localRunArgs.add(System.getenv("PULSAR_HOME") + "/bin/function-localrunner");
localRunArgs.add("--functionConfig");
localRunArgs.add(new Gson().toJson(functionConfig));
for (Field field : this.getClass().getDeclaredFields()) {
if (field.getName().startsWith("DEPRECATED")) {
continue;
}
if (field.getName().contains("$")) {
continue;
}
Object value = field.get(this);
if (value != null) {
localRunArgs.add("--" + field.getName());
localRunArgs.add(value.toString());
}
}
ProcessBuilder processBuilder = new ProcessBuilder(localRunArgs).inheritIO();
Process process = processBuilder.start();
process.waitFor();
}
}
@Parameters(commandDescription = "Create a Pulsar Function in cluster mode (deploy it on a Pulsar cluster)")
class CreateFunction extends FunctionDetailsCommand {
@Override
void runCmd() throws Exception {
if (Utils.isFunctionPackageUrlSupported(functionConfig.getJar())) {
getAdmin().functions().createFunctionWithUrl(functionConfig, functionConfig.getJar());
} else if (Utils.isFunctionPackageUrlSupported(functionConfig.getPy())) {
getAdmin().functions().createFunctionWithUrl(functionConfig, functionConfig.getPy());
} else if (Utils.isFunctionPackageUrlSupported(functionConfig.getGo())) {
getAdmin().functions().createFunctionWithUrl(functionConfig, functionConfig.getGo());
} else {
getAdmin().functions().createFunction(functionConfig, userCodeFile);
}
print("Created successfully");
}
}
@Parameters(commandDescription = "Fetch information about a Pulsar Function")
class GetFunction extends FunctionCommand {
@Override
void runCmd() throws Exception {
FunctionConfig functionConfig = getAdmin().functions().getFunction(tenant, namespace, functionName);
Gson gson = new GsonBuilder().setPrettyPrinting().create();
System.out.println(gson.toJson(functionConfig));
}
}
@Parameters(commandDescription = "Check the current status of a Pulsar Function")
class GetFunctionStatus extends FunctionCommand {
@Parameter(names = "--instance-id", description = "The function instanceId "
+ "(Get-status of all instances if instance-id is not provided)")
protected String instanceId;
@Override
void runCmd() throws Exception {
if (isBlank(instanceId)) {
print(getAdmin().functions().getFunctionStatus(tenant, namespace, functionName));
} else {
print(getAdmin().functions()
.getFunctionStatus(tenant, namespace, functionName, Integer.parseInt(instanceId)));
}
}
}
@Parameters(commandDescription = "Get the current stats of a Pulsar Function")
class GetFunctionStats extends FunctionCommand {
@Parameter(names = "--instance-id", description = "The function instanceId "
+ "(Get-stats of all instances if instance-id is not provided)")
protected String instanceId;
@Override
void runCmd() throws Exception {
if (isBlank(instanceId)) {
print(getAdmin().functions().getFunctionStats(tenant, namespace, functionName));
} else {
print(getAdmin().functions()
.getFunctionStats(tenant, namespace, functionName, Integer.parseInt(instanceId)));
}
}
}
@Parameters(commandDescription = "Restart function instance")
class RestartFunction extends FunctionCommand {
@Parameter(names = "--instance-id", description = "The function instanceId "
+ "(restart all instances if instance-id is not provided)")
protected String instanceId;
@Override
void runCmd() throws Exception {
if (isNotBlank(instanceId)) {
try {
getAdmin().functions()
.restartFunction(tenant, namespace, functionName, Integer.parseInt(instanceId));
} catch (NumberFormatException e) {
System.err.println("instance-id must be a number");
}
} else {
getAdmin().functions().restartFunction(tenant, namespace, functionName);
}
System.out.println("Restarted successfully");
}
}
@Parameters(commandDescription = "Stops function instance")
class StopFunction extends FunctionCommand {
@Parameter(names = "--instance-id", description = "The function instanceId "
+ "(stop all instances if instance-id is not provided)")
protected String instanceId;
@Override
void runCmd() throws Exception {
if (isNotBlank(instanceId)) {
try {
getAdmin().functions().stopFunction(tenant, namespace, functionName, Integer.parseInt(instanceId));
} catch (NumberFormatException e) {
System.err.println("instance-id must be a number");
}
} else {
getAdmin().functions().stopFunction(tenant, namespace, functionName);
}
System.out.println("Stopped successfully");
}
}
@Parameters(commandDescription = "Starts a stopped function instance")
class StartFunction extends FunctionCommand {
@Parameter(names = "--instance-id", description = "The function instanceId "
+ "(start all instances if instance-id is not provided)")
protected String instanceId;
@Override
void runCmd() throws Exception {
if (isNotBlank(instanceId)) {
try {
getAdmin().functions().startFunction(tenant, namespace, functionName, Integer.parseInt(instanceId));
} catch (NumberFormatException e) {
System.err.println("instance-id must be a number");
}
} else {
getAdmin().functions().startFunction(tenant, namespace, functionName);
}
System.out.println("Started successfully");
}
}
@Parameters(commandDescription = "Delete a Pulsar Function that is running on a Pulsar cluster")
class DeleteFunction extends FunctionCommand {
@Override
void runCmd() throws Exception {
getAdmin().functions().deleteFunction(tenant, namespace, functionName);
print("Deleted successfully");
}
}
@Parameters(commandDescription = "Update a Pulsar Function that has been deployed to a Pulsar cluster")
class UpdateFunction extends FunctionDetailsCommand {
@Parameter(names = "--update-auth-data", description = "Whether or not to update the auth data #Java, Python")
protected boolean updateAuthData;
@Override
protected void validateFunctionConfigs(FunctionConfig functionConfig) {
if (StringUtils.isEmpty(functionConfig.getName())) {
org.apache.pulsar.common.functions.Utils.inferMissingFunctionName(functionConfig);
}
if (StringUtils.isEmpty(functionConfig.getName())) {
throw new ParameterException("Function Name not provided");
}
if (StringUtils.isEmpty(functionConfig.getTenant())) {
org.apache.pulsar.common.functions.Utils.inferMissingTenant(functionConfig);
}
if (StringUtils.isEmpty(functionConfig.getNamespace())) {
org.apache.pulsar.common.functions.Utils.inferMissingNamespace(functionConfig);
}
}
@Override
void runCmd() throws Exception {
UpdateOptionsImpl updateOptions = new UpdateOptionsImpl();
updateOptions.setUpdateAuthData(updateAuthData);
if (Utils.isFunctionPackageUrlSupported(functionConfig.getJar())) {
getAdmin().functions().updateFunctionWithUrl(functionConfig, functionConfig.getJar(), updateOptions);
} else if (Utils.isFunctionPackageUrlSupported(functionConfig.getPy())) {
getAdmin().functions().updateFunctionWithUrl(functionConfig, functionConfig.getPy(), updateOptions);
} else if (Utils.isFunctionPackageUrlSupported(functionConfig.getGo())) {
getAdmin().functions().updateFunctionWithUrl(functionConfig, functionConfig.getGo(), updateOptions);
} else {
getAdmin().functions().updateFunction(functionConfig, userCodeFile, updateOptions);
}
print("Updated successfully");
}
}
@Parameters(commandDescription = "List all Pulsar Functions running under a specific tenant and namespace")
class ListFunctions extends NamespaceCommand {
@Override
void runCmd() throws Exception {
print(getAdmin().functions().getFunctions(tenant, namespace));
}
}
@Parameters(commandDescription = "Fetch the current state associated with a Pulsar Function")
class StateGetter extends FunctionCommand {
@Parameter(names = { "-k", "--key" }, description = "Key name of State")
private String key = null;
@Parameter(names = { "-w", "--watch" }, description = "Watch for changes in the value associated with a key "
+ "for a Pulsar Function")
private boolean watch = false;
@Override
void runCmd() throws Exception {
if (isBlank(key)) {
throw new ParameterException("State key needs to be specified");
}
do {
try {
FunctionState functionState = getAdmin().functions()
.getFunctionState(tenant, namespace, functionName, key);
Gson gson = new GsonBuilder().setPrettyPrinting().create();
System.out.println(gson.toJson(functionState));
} catch (PulsarAdminException pae) {
if (pae.getStatusCode() == 404 && watch) {
System.err.println(pae.getMessage());
} else {
throw pae;
}
}
if (watch) {
Thread.sleep(1000);
}
} while (watch);
}
}
@Parameters(commandDescription = "Put the state associated with a Pulsar Function")
class StatePutter extends FunctionCommand {
@Parameter(names = { "-s", "--state" }, description = "The FunctionState that needs to be put", required = true)
private String state = null;
@Override
void runCmd() throws Exception {
FunctionState stateRepr =
ObjectMapperFactory.getMapper().reader().readValue(state, FunctionState.class);
getAdmin().functions()
.putFunctionState(tenant, namespace, functionName, stateRepr);
}
}
@Parameters(commandDescription = "Trigger the specified Pulsar Function with a supplied value")
class TriggerFunction extends FunctionCommand {
// for backward compatibility purposes
@Parameter(names = "--triggerValue",
description = "The value with which you want to trigger the function", hidden = true)
protected String deprecatedTriggerValue;
@Parameter(names = "--trigger-value", description = "The value with which you want to trigger the function")
protected String triggerValue;
// for backward compatibility purposes
@Parameter(names = "--triggerFile", description = "The path to the file that contains the data with which "
+ "you want to trigger the function", hidden = true)
protected String deprecatedTriggerFile;
@Parameter(names = "--trigger-file", description = "The path to the file that contains the data with which "
+ "you want to trigger the function")
protected String triggerFile;
@Parameter(names = "--topic", description = "The specific topic name that the function consumes from that"
+ " you want to inject the data to")
protected String topic;
public void mergeArgs() {
if (isBlank(triggerValue) && !isBlank(deprecatedTriggerValue)) {
triggerValue = deprecatedTriggerValue;
}
if (isBlank(triggerFile) && !isBlank(deprecatedTriggerFile)) {
triggerFile = deprecatedTriggerFile;
}
}
@Override
void runCmd() throws Exception {
// merge deprecated args with new args
mergeArgs();
if (triggerFile == null && triggerValue == null) {
throw new ParameterException("Either a trigger value or a trigger filepath needs to be specified");
}
String retval = getAdmin().functions()
.triggerFunction(tenant, namespace, functionName, topic, triggerValue, triggerFile);
System.out.println(retval);
}
}
@Parameters(commandDescription = "Upload File Data to Pulsar", hidden = true)
class UploadFunction extends BaseCommand {
// for backward compatibility purposes
@Parameter(
names = "--sourceFile",
description = "The file whose contents need to be uploaded",
listConverter = StringConverter.class, hidden = true)
protected String deprecatedSourceFile;
@Parameter(
names = "--source-file",
description = "The file whose contents need to be uploaded",
listConverter = StringConverter.class)
protected String sourceFile;
@Parameter(
names = "--path",
description = "Path or functionPkgUrl where the contents need to be stored",
listConverter = StringConverter.class, required = true)
protected String path;
private void mergeArgs() {
if (isBlank(sourceFile) && !isBlank(deprecatedSourceFile)) {
sourceFile = deprecatedSourceFile;
}
}
@Override
void runCmd() throws Exception {
// merge deprecated args with new args
mergeArgs();
if (StringUtils.isBlank(sourceFile)) {
throw new ParameterException("--source-file needs to be specified");
}
getAdmin().functions().uploadFunction(sourceFile, path);
print("Uploaded successfully");
}
}
@Parameters(commandDescription = "Download File Data from Pulsar", hidden = true)
class DownloadFunction extends FunctionCommand {
// for backward compatibility purposes
@Parameter(
names = "--destinationFile",
description = "The file to store downloaded content",
listConverter = StringConverter.class, hidden = true)
protected String deprecatedDestinationFile;
@Parameter(
names = "--destination-file",
description = "The file to store downloaded content",
listConverter = StringConverter.class)
protected String destinationFile;
@Parameter(
names = "--path",
description = "Path or functionPkgUrl to store the content",
listConverter = StringConverter.class, required = false, hidden = true)
protected String path;
@Parameter(
names = "--transform-function",
description = "Download the transform Function of the connector")
protected Boolean transformFunction = false;
private void mergeArgs() {
if (isBlank(destinationFile) && !isBlank(deprecatedDestinationFile)) {
destinationFile = deprecatedDestinationFile;
}
}
@Override
void processArguments() throws Exception {
if (path == null) {
super.processArguments();
}
}
@Override
void runCmd() throws Exception {
// merge deprecated args with new args
mergeArgs();
if (StringUtils.isBlank(destinationFile)) {
throw new ParameterException("--destination-file needs to be specified");
}
if (path != null) {
getAdmin().functions().downloadFunction(destinationFile, path);
} else {
getAdmin().functions()
.downloadFunction(destinationFile, tenant, namespace, functionName, transformFunction);
}
print("Downloaded successfully");
}
}
@Parameters(commandDescription = "Reload the available built-in functions")
public class ReloadBuiltInFunctions extends CmdFunctions.BaseCommand {
@Override
void runCmd() throws Exception {
getAdmin().functions().reloadBuiltInFunctions();
}
}
public CmdFunctions(Supplier admin) throws PulsarClientException {
super("functions", admin);
localRunner = new LocalRunner();
creater = new CreateFunction();
deleter = new DeleteFunction();
updater = new UpdateFunction();
getter = new GetFunction();
functionStatus = new GetFunctionStatus();
functionStats = new GetFunctionStats();
lister = new ListFunctions();
stateGetter = new StateGetter();
statePutter = new StatePutter();
triggerer = new TriggerFunction();
uploader = new UploadFunction();
downloader = new DownloadFunction();
restart = new RestartFunction();
stop = new StopFunction();
start = new StartFunction();
jcommander.addCommand("localrun", getLocalRunner());
jcommander.addCommand("create", getCreater());
jcommander.addCommand("delete", getDeleter());
jcommander.addCommand("update", getUpdater());
jcommander.addCommand("get", getGetter());
jcommander.addCommand("restart", getRestarter());
jcommander.addCommand("stop", getStopper());
jcommander.addCommand("start", getStarter());
// TODO depecreate getstatus
jcommander.addCommand("status", getStatuser(), "getstatus");
jcommander.addCommand("stats", getFunctionStats());
jcommander.addCommand("list", getLister());
jcommander.addCommand("querystate", getStateGetter());
jcommander.addCommand("putstate", getStatePutter());
jcommander.addCommand("trigger", getTriggerer());
jcommander.addCommand("upload", getUploader());
jcommander.addCommand("download", getDownloader());
jcommander.addCommand("reload", new ReloadBuiltInFunctions());
jcommander.addCommand("available-functions", new ListBuiltInFunctions());
}
@VisibleForTesting
LocalRunner getLocalRunner() {
return localRunner;
}
@VisibleForTesting
CreateFunction getCreater() {
return creater;
}
@VisibleForTesting
DeleteFunction getDeleter() {
return deleter;
}
@VisibleForTesting
UpdateFunction getUpdater() {
return updater;
}
@VisibleForTesting
GetFunction getGetter() {
return getter;
}
@VisibleForTesting
GetFunctionStatus getStatuser() {
return functionStatus;
}
@VisibleForTesting
ListFunctions getLister() {
return lister;
}
@VisibleForTesting
StatePutter getStatePutter() {
return statePutter;
}
@VisibleForTesting
StateGetter getStateGetter() {
return stateGetter;
}
@VisibleForTesting
TriggerFunction getTriggerer() {
return triggerer;
}
@VisibleForTesting
UploadFunction getUploader() {
return uploader;
}
@VisibleForTesting
DownloadFunction getDownloader() {
return downloader;
}
@VisibleForTesting
RestartFunction getRestarter() {
return restart;
}
@VisibleForTesting
StopFunction getStopper() {
return stop;
}
@VisibleForTesting
StartFunction getStarter() {
return start;
}
private void parseFullyQualifiedFunctionName(String fqfn, FunctionConfig functionConfig) {
String[] args = fqfn.split("/");
if (args.length != 3) {
throw new ParameterException("Fully qualified function names (FQFNs) must "
+ "be of the form tenant/namespace/name");
} else {
functionConfig.setTenant(args[0]);
functionConfig.setNamespace(args[1]);
functionConfig.setName(args[2]);
}
}
@Parameters(commandDescription = "Get the list of Pulsar Functions supported by Pulsar cluster")
public class ListBuiltInFunctions extends BaseCommand {
@Override
void runCmd() throws Exception {
getAdmin().functions().getBuiltInFunctions()
.forEach(function -> {
System.out.println(function.getName());
System.out.println(WordUtils.wrap(function.getDescription(), 80));
System.out.println("----------------------------------------");
});
}
}
}
