Package org.apache.pulsar.functions.runtime

Class RuntimeUtils

java.lang.Object

org.apache.pulsar.functions.runtime.RuntimeUtils

public class RuntimeUtils
extends Object

Util class for common runtime functionality.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	FUNCTIONS_INSTANCE_CLASSPATH

Constructor Summary

Constructors

Constructor	Description
RuntimeUtils()

Method Summary

Modifier and Type	Method	Description
static List<String>	composeCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig, String instanceFile, String extraDependenciesDir, String logDirectory, String originalCodeFileName, String pulsarServiceUrl, String stateStorageServiceUrl, org.apache.pulsar.functions.instance.AuthenticationConfig authConfig, String shardId, Integer grpcPort, Long expectedHealthCheckInterval, String logConfigFile, String secretsProviderClassName, String secretsProviderConfig, Boolean installUserCodeDependencies, String pythonDependencyRepository, String pythonExtraDependencyRepository, String narExtractionDirectory, String functionInstanceClassPath, String pulsarWebServiceUrl)
static String	genFunctionLogFolder(String logDirectory, org.apache.pulsar.functions.instance.InstanceConfig instanceConfig)
static List<String>	getArgsBeforeCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig, String extraDependenciesDir)
static List<String>	getCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig, String instanceFile, String extraDependenciesDir, String logDirectory, String originalCodeFileName, String pulsarServiceUrl, String stateStorageServiceUrl, org.apache.pulsar.functions.instance.AuthenticationConfig authConfig, String shardId, Integer grpcPort, Long expectedHealthCheckInterval, String logConfigFile, String secretsProviderClassName, String secretsProviderConfig, Boolean installUserCodeDependencies, String pythonDependencyRepository, String pythonExtraDependencyRepository, String narExtractionDirectory, String functionInstanceClassPath, boolean k8sRuntime, String pulsarWebServiceUrl)
static List<String>	getGoInstanceCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig, String originalCodeFileName, String pulsarServiceUrl, boolean k8sRuntime)	Different from python and java function, Go function uploads a complete executable file(including: instance file + user code file).
static String	getPrometheusMetrics(int metricsPort)
static <T> T	getRuntimeFunctionConfig(Map<String,Object> configMap, Class<T> functionRuntimeConfigClass)
static void	registerDefaultCollectors(org.apache.pulsar.functions.instance.stats.FunctionCollectorRegistry registry)
static String[]	splitRuntimeArgs(String input)	Regex for splitting a string using space when not surrounded by single or double quotes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

FUNCTIONS_INSTANCE_CLASSPATH

public static final String FUNCTIONS_INSTANCE_CLASSPATH

See Also:

• Constant Field Values

Constructor Details

RuntimeUtils

public RuntimeUtils()

Method Details

composeCmd

public static List<String> composeCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig,
 String instanceFile,
 String extraDependenciesDir,
 String logDirectory,
 String originalCodeFileName,
 String pulsarServiceUrl,
 String stateStorageServiceUrl,
 org.apache.pulsar.functions.instance.AuthenticationConfig authConfig,
 String shardId,
 Integer grpcPort,
 Long expectedHealthCheckInterval,
 String logConfigFile,
 String secretsProviderClassName,
 String secretsProviderConfig,
 Boolean installUserCodeDependencies,
 String pythonDependencyRepository,
 String pythonExtraDependencyRepository,
 String narExtractionDirectory,
 String functionInstanceClassPath,
 String pulsarWebServiceUrl)
                               throws Exception

Throws:

Exception

getArgsBeforeCmd

public static List<String> getArgsBeforeCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig,
 String extraDependenciesDir)

getGoInstanceCmd

public static List<String> getGoInstanceCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig,
 String originalCodeFileName,
 String pulsarServiceUrl,
 boolean k8sRuntime)
                                     throws IOException

Different from python and java function, Go function uploads a complete executable file(including: instance file + user code file). Its parameter list is provided to the broker in the form of a yaml file, the advantage of this approach is that backward compatibility is guaranteed. In Java and Python the instance is managed by broker (or function worker) so the changes in command line is under control; but in Go the instance is compiled with the user function, so pulsar doesn't have the control what instance is used in the function. Hence in order to support BC for go function, we can't dynamically add more commandline arguments. Using an instance config to pass the parameters from function worker to go instance is the best way for maintaining the BC.

When we run the go function, we only need to specify the location of the go-function file and the yaml file. The content of the yaml file will be automatically generated according to the content provided by instanceConfig.

Throws:

IOException

getCmd

public static List<String> getCmd(org.apache.pulsar.functions.instance.InstanceConfig instanceConfig,
 String instanceFile,
 String extraDependenciesDir,
 String logDirectory,
 String originalCodeFileName,
 String pulsarServiceUrl,
 String stateStorageServiceUrl,
 org.apache.pulsar.functions.instance.AuthenticationConfig authConfig,
 String shardId,
 Integer grpcPort,
 Long expectedHealthCheckInterval,
 String logConfigFile,
 String secretsProviderClassName,
 String secretsProviderConfig,
 Boolean installUserCodeDependencies,
 String pythonDependencyRepository,
 String pythonExtraDependencyRepository,
 String narExtractionDirectory,
 String functionInstanceClassPath,
 boolean k8sRuntime,
 String pulsarWebServiceUrl)
                           throws Exception

Throws:

Exception

genFunctionLogFolder

public static String genFunctionLogFolder(String logDirectory,
 org.apache.pulsar.functions.instance.InstanceConfig instanceConfig)

getPrometheusMetrics

public static String getPrometheusMetrics(int metricsPort)
                                   throws IOException

Throws:

IOException

splitRuntimeArgs

public static String[] splitRuntimeArgs(String input)

Regex for splitting a string using space when not surrounded by single or double quotes

getRuntimeFunctionConfig

public static <T> T getRuntimeFunctionConfig(Map<String,Object> configMap,
 Class<T> functionRuntimeConfigClass)

registerDefaultCollectors

public static void registerDefaultCollectors(org.apache.pulsar.functions.instance.stats.FunctionCollectorRegistry registry)