org.apache.pulsar.zookeeper

Class GlobalZooKeeperCache

java.lang.Object

org.apache.pulsar.zookeeper.ZooKeeperCache

org.apache.pulsar.zookeeper.GlobalZooKeeperCache

All Implemented Interfaces:

Closeable, AutoCloseable, Watcher

public class GlobalZooKeeperCache
extends ZooKeeperCache
implements Closeable

Per ZK client ZooKeeper cache supporting ZNode data and children list caches. A cache entry is identified, accessed and invalidated by the ZNode path. For the data cache, ZNode data parsing is done at request time with the given Deserializer argument.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pulsar.zookeeper.ZooKeeperCache

ZooKeeperCache.CacheUpdater<T>, ZooKeeperCache.Deserializer<T>

Nested classes/interfaces inherited from interface org.apache.zookeeper.Watcher

Watcher.Event, Watcher.WatcherType

Field Summary

Fields inherited from class org.apache.pulsar.zookeeper.ZooKeeperCache

childrenCache, dataCache, existsCache, ZK_CACHE_INSTANCE, zkSession

Constructor Summary

Constructors

Constructor and Description
GlobalZooKeeperCache(ZooKeeperClientFactory zkClientFactory, int zkSessionTimeoutMillis, int zkOperationTimeoutSeconds, String globalZkConnect, org.apache.bookkeeper.common.util.OrderedExecutor orderedExecutor, ScheduledExecutorService scheduledExecutor, int cacheExpirySeconds)

Method Summary

Modifier and Type	Method and Description
protected void	asyncRestartZooKeeperSession()
void	close()
<T> void	process(WatchedEvent event, ZooKeeperCache.CacheUpdater<T> updater)
void	start()

Methods inherited from class org.apache.pulsar.zookeeper.ZooKeeperCache

asyncInvalidate, checkRegNodeAndWaitExpired, exists, existsAsync, getChildren, getChildrenAsync, getChildrenIfPresent, getData, getData, getDataAsync, getDataAsync, getDataIfPresent, getEntry, getEntryAsync, getZkOperationTimeoutSeconds, getZooKeeper, invalidate, invalidateAll, invalidateAllChildren, invalidateAllData, invalidateChildren, invalidateData, invalidateRoot, process, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

GlobalZooKeeperCache

public GlobalZooKeeperCache(ZooKeeperClientFactory zkClientFactory,
                            int zkSessionTimeoutMillis,
                            int zkOperationTimeoutSeconds,
                            String globalZkConnect,
                            org.apache.bookkeeper.common.util.OrderedExecutor orderedExecutor,
                            ScheduledExecutorService scheduledExecutor,
                            int cacheExpirySeconds)

Method Detail

start

public void start()
           throws IOException

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

process

public <T> void process(WatchedEvent event,
                        ZooKeeperCache.CacheUpdater<T> updater)

Overrides:

process in class ZooKeeperCache

asyncRestartZooKeeperSession

protected void asyncRestartZooKeeperSession()