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java.lang.Objectorg.apache.hadoop.hbase.zookeeper.ZooKeeperListener
org.apache.hadoop.hbase.security.visibility.ZKVisibilityLabelWatcher
@InterfaceAudience.Private public class ZKVisibilityLabelWatcher
A zk watcher that watches the labels table znode. This would create a znode /hbase/visibility_labels and will have a serialized form of a set of labels in the system.
Field Summary |
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Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener |
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watcher |
Constructor Summary | |
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ZKVisibilityLabelWatcher(ZooKeeperWatcher watcher,
VisibilityLabelsCache labelsCache,
org.apache.hadoop.conf.Configuration conf)
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Method Summary | |
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void |
nodeChildrenChanged(String path)
Called when an existing node has a child node added or removed. |
void |
nodeCreated(String path)
Called when a new node has been created. |
void |
nodeDataChanged(String path)
Called when an existing node has changed data. |
void |
nodeDeleted(String path)
Called when a node has been deleted |
void |
start()
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void |
writeToZookeeper(byte[] data,
boolean labelsOrUserAuths)
Write a labels mirror or user auths mirror into zookeeper |
Methods inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener |
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getWatcher |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ZKVisibilityLabelWatcher(ZooKeeperWatcher watcher, VisibilityLabelsCache labelsCache, org.apache.hadoop.conf.Configuration conf)
Method Detail |
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public void start() throws org.apache.zookeeper.KeeperException
org.apache.zookeeper.KeeperException
public void nodeCreated(String path)
ZooKeeperListener
nodeCreated
in class ZooKeeperListener
path
- full path of the new nodepublic void nodeDeleted(String path)
ZooKeeperListener
nodeDeleted
in class ZooKeeperListener
path
- full path of the deleted nodepublic void nodeDataChanged(String path)
ZooKeeperListener
nodeDataChanged
in class ZooKeeperListener
path
- full path of the updated nodepublic void nodeChildrenChanged(String path)
ZooKeeperListener
nodeChildrenChanged
in class ZooKeeperListener
path
- full path of the node whose children have changedpublic void writeToZookeeper(byte[] data, boolean labelsOrUserAuths)
data
- labelsOrUserAuths
- true for writing labels and false for user auths.
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