Package org.apache.hadoop.hbase.security.visibility

Class VisibilityLabelServiceManager

java.lang.Object

org.apache.hadoop.hbase.security.visibility.VisibilityLabelServiceManager

@Private
public class VisibilityLabelServiceManager
extends Object

Manages singleton instance of VisibilityLabelService

Field Summary

Fields

Modifier and Type	Field	Description
private static final VisibilityLabelServiceManager	INSTANCE
private static final org.slf4j.Logger	LOG
static final String	VISIBILITY_LABEL_SERVICE_CLASS
private VisibilityLabelService	visibilityLabelService
private String	vlsClazzName

Constructor Summary

Constructors

Modifier	Constructor	Description
private	VisibilityLabelServiceManager()

Method Summary

Modifier and Type	Method	Description
private void	checkForClusterLevelSingleConf(String vlsClassName)
static VisibilityLabelServiceManager	getInstance()
VisibilityLabelService	getVisibilityLabelService()
VisibilityLabelService	getVisibilityLabelService(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

VISIBILITY_LABEL_SERVICE_CLASS

public static final String VISIBILITY_LABEL_SERVICE_CLASS

See Also:

• Constant Field Values

INSTANCE

private static final VisibilityLabelServiceManager INSTANCE

visibilityLabelService

private volatile VisibilityLabelService visibilityLabelService

vlsClazzName

private String vlsClazzName

Constructor Details

VisibilityLabelServiceManager

private VisibilityLabelServiceManager()

Method Details

getInstance

public static VisibilityLabelServiceManager getInstance()

getVisibilityLabelService

public VisibilityLabelService getVisibilityLabelService(org.apache.hadoop.conf.Configuration conf)
                                                 throws IOException

Returns:

singleton instance of VisibilityLabelService. The FQCN of the implementation class can be specified using "hbase.regionserver.visibility.label.service.class".

Throws:

IOException - When VLS implementation, as specified in conf, can not be loaded.

checkForClusterLevelSingleConf

private void checkForClusterLevelSingleConf(String vlsClassName)

getVisibilityLabelService

public VisibilityLabelService getVisibilityLabelService()

Returns:

singleton instance of VisibilityLabelService.

Throws:

IllegalStateException - if this called before initialization of singleton instance.