org.apache.ambari.server.agent.stomp

Class AgentDataHolder<T extends Hashable>

java.lang.Object

org.apache.ambari.server.agent.stomp.AgentDataHolder<T>

Type Parameters:

T - event with hash to control version

Direct Known Subclasses:

AgentClusterDataHolder, AgentHostDataHolder

public abstract class AgentDataHolder<T extends Hashable>
extends Object

Is used to hash generating for event

Field Summary

Fields

Modifier and Type	Field and Description
protected ReentrantLock	updateLock

Constructor Summary

Constructors

Constructor and Description
AgentDataHolder()

Method Summary

Modifier and Type	Method and Description
protected abstract T	getEmptyData()
protected String	getHash(T data)
protected String	getHash(T data, String salt)
protected boolean	isIdentifierValid(T data)
protected void	regenerateDataIdentifiers(T data)

Methods inherited from class java.lang.Object

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

Field Detail

updateLock

protected final ReentrantLock updateLock

Constructor Detail

AgentDataHolder

public AgentDataHolder()

Method Detail

getEmptyData

protected abstract T getEmptyData()

regenerateDataIdentifiers

protected void regenerateDataIdentifiers(T data)

isIdentifierValid

protected boolean isIdentifierValid(T data)

getHash

protected String getHash(T data)

getHash

protected String getHash(T data,
                         String salt)