Package org.apache.flink.runtime.util

Class ConfigurationParserUtils

java.lang.Object

org.apache.flink.runtime.util.ConfigurationParserUtils

public class ConfigurationParserUtils
extends Object

Utility class to extract related parameters from Configuration and to sanity check them.

Constructor Summary

Constructors

Constructor	Description
ConfigurationParserUtils()

Method Summary

Modifier and Type	Method	Description
static void	checkConfigParameter(boolean condition, Object parameter, String name, String errorMessage)	Validates a condition for a config parameter and displays a standard exception, if the condition does not hold.
static int	getPageSize(org.apache.flink.configuration.Configuration configuration)	Parses the configuration to get the page size and validates the value.
static int	getSlot(org.apache.flink.configuration.Configuration configuration)	Parses the configuration to get the number of slots and validates the value.
static List<String>	loadAndModifyConfiguration(String[] args, String cmdLineSyntax)
static org.apache.flink.configuration.Configuration	loadCommonConfiguration(String[] args, String cmdLineSyntax)	Generate configuration from only the config file and dynamic properties.
static List<String>	migrateLegacyConfigurationToStandardYaml(String[] args, String cmdLineSyntax)

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigurationParserUtils

public ConfigurationParserUtils()

Method Detail

getSlot

public static int getSlot(org.apache.flink.configuration.Configuration configuration)

Parses the configuration to get the number of slots and validates the value.

Parameters:

configuration - configuration object

Returns:

the number of slots in task manager

checkConfigParameter

public static void checkConfigParameter(boolean condition,
                                        Object parameter,
                                        String name,
                                        String errorMessage)
                                 throws org.apache.flink.configuration.IllegalConfigurationException

Validates a condition for a config parameter and displays a standard exception, if the condition does not hold.

Parameters:

condition - The condition that must hold. If the condition is false, an exception is thrown.

parameter - The parameter value. Will be shown in the exception message.

name - The name of the config parameter. Will be shown in the exception message.

errorMessage - The optional custom error message to append to the exception message.

Throws:

org.apache.flink.configuration.IllegalConfigurationException - if the condition does not hold

getPageSize

public static int getPageSize(org.apache.flink.configuration.Configuration configuration)

Parses the configuration to get the page size and validates the value.

Parameters:

configuration - configuration object

Returns:

size of memory segment

loadCommonConfiguration

public static org.apache.flink.configuration.Configuration loadCommonConfiguration(String[] args,
                                                                                   String cmdLineSyntax)
                                                                            throws FlinkParseException

Generate configuration from only the config file and dynamic properties.

Parameters:

args - the commandline arguments

cmdLineSyntax - the syntax for this application

Returns:

generated configuration

Throws:

FlinkParseException - if the configuration cannot be generated

loadAndModifyConfiguration

public static List<String> loadAndModifyConfiguration(String[] args,
                                                      String cmdLineSyntax)
                                               throws FlinkParseException

Throws:

FlinkParseException

migrateLegacyConfigurationToStandardYaml

public static List<String> migrateLegacyConfigurationToStandardYaml(String[] args,
                                                                    String cmdLineSyntax)
                                                             throws FlinkParseException

Throws:

FlinkParseException