io.confluent.kafka.connect.utils.config

Class ConfigUtils

java.lang.Object

io.confluent.kafka.connect.utils.config.ConfigUtils

public class ConfigUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static String	enumValues(Class<?> enumClass) Method is used to return the values for an enum.
static File	getAbsoluteFile(org.apache.kafka.common.config.AbstractConfig config, String key) Method is used to return a File checking to ensure that it is an absolute path.
static <T> Class<T>	getClass(org.apache.kafka.common.config.AbstractConfig config, String key, Class<T> expected) Method is used to return a class that should be assignable to the expected class.
static <T extends Enum<T>> T	getEnum(Class<T> enumClass, org.apache.kafka.common.config.AbstractConfig config, String key) Method is used to return an enum value from a given string.

Methods inherited from class java.lang.Object

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

Method Detail

getClass

public static <T> Class<T> getClass(org.apache.kafka.common.config.AbstractConfig config,
                                    String key,
                                    Class<T> expected)

Method is used to return a class that should be assignable to the expected class. For example when a user implements an interface that is loaded at runtime. It is good to ensure that the proper interface has been implemented.

Type Parameters:

T - Class type to return.

Parameters:

config - config that has the class setting

key - key to read

expected - expected parent class or interface

Returns:

Returns a class if it's assignable from the specified class.

Throws:

IllegalStateException - Thrown if it fails expected.isAssignableFrom(cls).

getEnum

public static <T extends Enum<T>> T getEnum(Class<T> enumClass,
                                            org.apache.kafka.common.config.AbstractConfig config,
                                            String key)

Method is used to return an enum value from a given string.

Type Parameters:

T - Enum class to return type for.

Parameters:

enumClass - Class for the resulting enum value

config - config to read the value from

key - key for the value

Returns:

enum value for the given key.

See Also:

ValidEnum

enumValues

public static String enumValues(Class<?> enumClass)

Method is used to return the values for an enum.

Parameters:

enumClass - Enum class to return the constants for.

Returns:

Returns a comma seperated string of all of the values in the enum.

getAbsoluteFile

public static File getAbsoluteFile(org.apache.kafka.common.config.AbstractConfig config,
                                   String key)

Method is used to return a File checking to ensure that it is an absolute path.

Parameters:

config - config to read the value from

key - key for the value

Returns:

File for the config value.