org.apache.streams.config

Class ComponentConfigurator<T extends Serializable>

java.lang.Object

org.apache.streams.config.ComponentConfigurator<T>

public class ComponentConfigurator<T extends Serializable>
extends Object

ComponentConfigurator supplies serializable configuration beans derived from a specified typesafe path or object.

Typically a component will select a 'default' typesafe path to be used if no other path or object is provided.

For example, streams-persist-elasticsearch will use 'elasticsearch' by default, but an implementation such as github.com/apache/streams-examples/local/elasticsearch-reindex can resolve a reader from elasticsearch.source and a writer from elasticsearch.destination.

Constructor Summary

Constructors

Constructor and Description
ComponentConfigurator(Class<T> configClass)

Method Summary

Modifier and Type	Method and Description
T	detectConfiguration() resolve a serializable configuration pojo.
T	detectConfiguration(com.typesafe.config.Config config) resolve a serializable configuration pojo from a portion of the JVM config object.
T	detectConfiguration(com.typesafe.config.Config typesafe, String path) resolve a serializable configuration pojo compiled from a specified path on a provided configuration tree.
T	detectConfiguration(String path) resolve a serializable configuration pojo from a portion of the JVM config object.
static List<Class>	getSuperClasses(Class clazz) inspect and return class hierarchy in order from furthest to nearest ancestor.

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentConfigurator

public ComponentConfigurator(Class<T> configClass)

Method Detail

detectConfiguration

public T detectConfiguration()

resolve a serializable configuration pojo. the entire object, or fragments of it, will be collected and merged from: - the simple class name of the configured class - the fully qualified class name of the configured class - any of the ancestor classes of the configured class - the configured class's package - any of the parent packages of the configured class's package

Returns:

result

detectConfiguration

public T detectConfiguration(com.typesafe.config.Config typesafe,
                             String path)

resolve a serializable configuration pojo compiled from a specified path on a provided configuration tree.

Returns:

result

detectConfiguration

public T detectConfiguration(String path)

resolve a serializable configuration pojo from a portion of the JVM config object.

Parameters:

path - path

Returns:

result

detectConfiguration

public T detectConfiguration(com.typesafe.config.Config config)

resolve a serializable configuration pojo from a portion of the JVM config object.

Parameters:

config - config

Returns:

result

getSuperClasses

public static List<Class> getSuperClasses(Class clazz)

inspect and return class hierarchy in order from furthest to nearest ancestor.

Parameters:

clazz - class to analyze

Returns:

result