org.springframework.cloud.dataflow.configuration.metadata

Class DelegatingApplicationConfigurationMetadataResolver

java.lang.Object

org.springframework.cloud.dataflow.configuration.metadata.ApplicationConfigurationMetadataResolver

org.springframework.cloud.dataflow.configuration.metadata.DelegatingApplicationConfigurationMetadataResolver

public class DelegatingApplicationConfigurationMetadataResolver
extends ApplicationConfigurationMetadataResolver

An ApplicationConfigurationMetadataResolver that tries several delegates in turn, returning the results of the first one that ApplicationConfigurationMetadataResolver.supports(Resource) an app. Returns an empty list of properties as a last resort.

Author:

Eric Bottard

Constructor Summary

Constructors

Constructor and Description
DelegatingApplicationConfigurationMetadataResolver(ApplicationConfigurationMetadataResolver... delegates)

Method Summary

Methods

Modifier and Type	Method and Description
URLClassLoader	createAppClassLoader(Resource app) For resolvers that support it, create a new ClassLoader that is able to load classes for the given app.
List<org.springframework.boot.configurationmetadata.ConfigurationMetadataProperty>	listProperties(Resource app, boolean exhaustive) Return metadata about configuration properties that are documented via Spring Boot configuration metadata and visible in an app.
boolean	supports(Resource app) Returns whether this resolver supports the given app.

Methods inherited from class org.springframework.cloud.dataflow.configuration.metadata.ApplicationConfigurationMetadataResolver

listProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingApplicationConfigurationMetadataResolver

public DelegatingApplicationConfigurationMetadataResolver(ApplicationConfigurationMetadataResolver... delegates)

Method Detail

supports

public boolean supports(Resource app)

Description copied from class: ApplicationConfigurationMetadataResolver

Returns whether this resolver supports the given app.

Specified by:

supports in class ApplicationConfigurationMetadataResolver

listProperties

public List<org.springframework.boot.configurationmetadata.ConfigurationMetadataProperty> listProperties(Resource app,
                                                                                                boolean exhaustive)

Description copied from class: ApplicationConfigurationMetadataResolver

Return metadata about configuration properties that are documented via Spring Boot configuration metadata and visible in an app.

Specified by:

listProperties in class ApplicationConfigurationMetadataResolver

Parameters:

app - a Spring Cloud Stream app; typically a Boot uberjar, but directories are supported as well

createAppClassLoader

public URLClassLoader createAppClassLoader(Resource app)

Description copied from class: ApplicationConfigurationMetadataResolver

For resolvers that support it, create a new ClassLoader that is able to load classes for the given app. The default implementation returns an empty classloader

Overrides:

createAppClassLoader in class ApplicationConfigurationMetadataResolver

Parameters:

app - an app to create a ClassLoader for

Returns:

a new ClassLoader. Callers are responsible for closing the returned class loader.