com.mesosphere.sdk.config

Class DefaultConfigurationUpdater

java.lang.Object

com.mesosphere.sdk.config.DefaultConfigurationUpdater

All Implemented Interfaces:

ConfigurationUpdater<ServiceSpec>

public class DefaultConfigurationUpdater
extends java.lang.Object
implements ConfigurationUpdater<ServiceSpec>

Handles the validation and update of a new configuration against a prior configuration, if any. In the case of the DefaultConfigurationUpdater, configurations are ServiceSpecifications.

Nested Class Summary

Nested classes/interfaces inherited from interface com.mesosphere.sdk.config.ConfigurationUpdater

ConfigurationUpdater.UpdateResult

Constructor Summary

Constructors

Constructor and Description
DefaultConfigurationUpdater(StateStore stateStore, ConfigStore<ServiceSpec> configStore, ConfigurationComparator<ServiceSpec> configComparator, java.util.Collection<ConfigValidator<ServiceSpec>> validators)

Method Summary

Modifier and Type	Method and Description
ConfigurationUpdater.UpdateResult	updateConfiguration(ServiceSpec candidateConfig) Validates the provided candidateConfig, and updates the target configuration if the validation passes.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultConfigurationUpdater

public DefaultConfigurationUpdater(StateStore stateStore,
                                   ConfigStore<ServiceSpec> configStore,
                                   ConfigurationComparator<ServiceSpec> configComparator,
                                   java.util.Collection<ConfigValidator<ServiceSpec>> validators)

Method Detail

updateConfiguration

public ConfigurationUpdater.UpdateResult updateConfiguration(ServiceSpec candidateConfig)
                                                      throws ConfigStoreException

Description copied from interface: ConfigurationUpdater

Validates the provided candidateConfig, and updates the target configuration if the validation passes.

Specified by:

updateConfiguration in interface ConfigurationUpdater<ServiceSpec>

Parameters:

candidateConfig - the new candidate configuration to be validated and potentially marked as the target configuration

Returns:

a list of errors if the new candidate configuration failed validation, or an empty list if the configuration passed validation and was updated to the config store

Throws:

ConfigStoreException - if there's an error when reading or writing to the config store, or if there are validation errors against the config and no prior fallback config is available