org.lockss.repository

Class OldLockssRepositoryImpl

java.lang.Object

org.lockss.app.BaseLockssManager

org.lockss.app.BaseLockssDaemonManager

org.lockss.repository.OldLockssRepositoryImpl

All Implemented Interfaces:

org.lockss.app.LockssAuManager, org.lockss.app.LockssManager, OldLockssRepository

public class OldLockssRepositoryImpl
extends org.lockss.app.BaseLockssDaemonManager
implements OldLockssRepository

LockssRepository is used to organize the urls being cached. It keeps a memory cache of the most recently used nodes as a least-recently-used map, and also caches weak references to the instances as they're doled out. This ensures that two instances of the same node are never created, as the weak references only disappear when the object is finalized (they go to null when the last hard reference is gone, then are removed from the cache on finalize()).

Nested Class Summary

Nested classes/interfaces inherited from class org.lockss.app.BaseLockssManager

org.lockss.app.BaseLockssManager.MapMessageListener

Nested classes/interfaces inherited from interface org.lockss.repository.OldLockssRepository

OldLockssRepository.RepositoryStateException

Nested classes/interfaces inherited from interface org.lockss.app.LockssAuManager

org.lockss.app.LockssAuManager.Factory

Field Summary

Fields inherited from class org.lockss.app.BaseLockssManager

isInited, isStarted, jmsConsumer, jmsProducer, shuttingDown, startedSem, theApp

Constructor Summary

Constructors

Constructor and Description
OldLockssRepositoryImpl()

Method Summary

Modifier and Type	Method and Description
RepositoryNode	createNewNode(String url) Creates a new RepositoryNode for the purposes of writing a new leaf to the cache.
void	deactivateNode(String url) Deactivate the node.
void	deleteNode(String url) Delete the node.
RepositoryNode	getNode(String url) Returns a RepositoryNode which represents the url in question.
void	nodeConsistencyCheck() Traverses the node hierarchy and tests internal state consistency for each node.
void	setAuConfig(org.lockss.config.Configuration auConfig)

Methods inherited from class org.lockss.app.BaseLockssDaemonManager

getDaemon, initService, initService, isDaemonInited

Methods inherited from class org.lockss.app.BaseLockssManager

getAlertManager, getApp, getClassName, getConfigManager, getDefaultTempRootDirectory, getJMSManager, getManagerByType, isAppInited, isInited, isRepoReady, isShuttingDown, isStarted, receiveMessage, resetConfig, serviceStarted, setUpJmsReceive, setUpJmsReceive, setUpJmsSend, startService, stopJms, stopService, waitForRepo, waitForRepo, waitStarted, waitStarted

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.lockss.app.LockssManager

getApp, initService, isInited, isStarted, serviceStarted, startService, stopService

Constructor Detail

OldLockssRepositoryImpl

public OldLockssRepositoryImpl()

Method Detail

setAuConfig

public void setAuConfig(org.lockss.config.Configuration auConfig)

Specified by:

setAuConfig in interface org.lockss.app.LockssAuManager

getNode

public RepositoryNode getNode(String url)
                       throws MalformedURLException

Description copied from interface: OldLockssRepository

Returns a RepositoryNode which represents the url in question. This only returns urls which exist in the cache (null otherwise).

Specified by:

getNode in interface OldLockssRepository

Parameters:

url - the desired url

Returns:

an entry for the url

Throws:

MalformedURLException

createNewNode

public RepositoryNode createNewNode(String url)
                             throws MalformedURLException

Description copied from interface: OldLockssRepository

Creates a new RepositoryNode for the purposes of writing a new leaf to the cache. This is used to add new leaves, though it still returns the leaf if it already exists.

Specified by:

createNewNode in interface OldLockssRepository

Parameters:

url - the url to be cached

Returns:

an entry for the url

Throws:

MalformedURLException

deleteNode

public void deleteNode(String url)
                throws MalformedURLException

Description copied from interface: OldLockssRepository

Delete the node.

Specified by:

deleteNode in interface OldLockssRepository

Parameters:

url - the url to be deleted

Throws:

MalformedURLException

deactivateNode

public void deactivateNode(String url)
                    throws MalformedURLException

Description copied from interface: OldLockssRepository

Deactivate the node.

Specified by:

deactivateNode in interface OldLockssRepository

Parameters:

url - the url to be deactivated

Throws:

MalformedURLException

nodeConsistencyCheck

public void nodeConsistencyCheck()

Description copied from interface: OldLockssRepository

Traverses the node hierarchy and tests internal state consistency for each node. Corrects and logs any correctable errors it encounters.

Specified by:

nodeConsistencyCheck in interface OldLockssRepository