Package org.apache.accumulo.server.conf.util

Class ConfigTransformer

java.lang.Object

org.apache.accumulo.server.conf.util.ConfigTransformer

public class ConfigTransformer
extends Object

Read legacy properties (pre 2.1) from ZooKeeper and transform them into the single node format. The encoded properties are stored in ZooKeeper and then the legacy property ZooKeeper nodes are deleted.

Constructor Summary

Constructors

Constructor	Description
ConfigTransformer(ZooReaderWriter zrw, VersionedPropCodec codec, PropStoreWatcher propStoreWatcher)	Instantiate a transformer instance.
ConfigTransformer(ZooReaderWriter zrw, VersionedPropCodec codec, PropStoreWatcher propStoreWatcher, Retry retry)

Method Summary

Modifier and Type	Method	Description
VersionedProperties	transform(PropStoreKey<?> propStoreKey, String legacyPath, boolean deleteLegacyNode)	Transform the properties for the provided prop cache key.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConfigTransformer

public ConfigTransformer(ZooReaderWriter zrw,
                         VersionedPropCodec codec,
                         PropStoreWatcher propStoreWatcher)

Instantiate a transformer instance.

Parameters:

zrw - a ZooReaderWriter

codec - the codec used to encode to the single-node format.

propStoreWatcher - the watcher registered to receive future notifications of changes to the encoded property node.

ConfigTransformer

public ConfigTransformer(ZooReaderWriter zrw,
                         VersionedPropCodec codec,
                         PropStoreWatcher propStoreWatcher,
                         Retry retry)

Method Detail

transform

public VersionedProperties transform(PropStoreKey<?> propStoreKey,
                                     String legacyPath,
                                     boolean deleteLegacyNode)

Transform the properties for the provided prop cache key.

Returns:

the encoded properties.