org.apache.hadoop.hbase.security.visibility

Class VisibilityController

java.lang.Object

org.apache.hadoop.hbase.coprocessor.BaseRegionObserver

org.apache.hadoop.hbase.coprocessor.BaseMasterAndRegionObserver

org.apache.hadoop.hbase.security.visibility.VisibilityController

All Implemented Interfaces:

Coprocessor, CoprocessorService, MasterObserver, RegionObserver, VisibilityLabelsProtos.VisibilityLabelsService.Interface

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class VisibilityController
extends BaseMasterAndRegionObserver
implements VisibilityLabelsProtos.VisibilityLabelsService.Interface, CoprocessorService

Coprocessor that has both the MasterObserver and RegionObserver implemented that supports in visibility labels

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	VisibilityController.VisibilityReplication A RegionServerObserver impl that provides the custom VisibilityReplicationEndpoint.

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.Coprocessor

Coprocessor.State

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.coprocessor.RegionObserver

RegionObserver.MutationType

Field Summary

Fields inherited from interface org.apache.hadoop.hbase.Coprocessor

PRIORITY_HIGHEST, PRIORITY_LOWEST, PRIORITY_SYSTEM, PRIORITY_USER, VERSION

Constructor Summary

Constructors

Constructor and Description
VisibilityController()

Method Summary

Methods

Modifier and Type	Method and Description
void	addLabels(com.google.protobuf.RpcController controller, VisibilityLabelsProtos.VisibilityLabelsRequest request, com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done) VisibilityEndpoint service related methods
void	clearAuths(com.google.protobuf.RpcController controller, VisibilityLabelsProtos.SetAuthsRequest request, com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done) rpc clearAuths(.SetAuthsRequest) returns (.VisibilityLabelsResponse);
void	getAuths(com.google.protobuf.RpcController controller, VisibilityLabelsProtos.GetAuthsRequest request, com.google.protobuf.RpcCallback<VisibilityLabelsProtos.GetAuthsResponse> done) rpc getAuths(.GetAuthsRequest) returns (.GetAuthsResponse);
com.google.protobuf.Service	getService()
void	listLabels(com.google.protobuf.RpcController controller, VisibilityLabelsProtos.ListLabelsRequest request, com.google.protobuf.RpcCallback<VisibilityLabelsProtos.ListLabelsResponse> done) rpc listLabels(.ListLabelsRequest) returns (.ListLabelsResponse);
DeleteTracker	postInstantiateDeleteTracker(ObserverContext<RegionCoprocessorEnvironment> ctx, DeleteTracker delTracker) Called after the ScanQueryMatcher creates ScanDeleteTracker.
void	postLogReplay(ObserverContext<RegionCoprocessorEnvironment> e) Called after the log replay on the region is over.
Cell	postMutationBeforeWAL(ObserverContext<RegionCoprocessorEnvironment> ctx, RegionObserver.MutationType opType, Mutation mutation, Cell oldCell, Cell newCell) Called after a new cell has been created during an increment operation, but before it is committed to the WAL or memstore.
void	postOpen(ObserverContext<RegionCoprocessorEnvironment> e) Region related hooks
void	postScannerClose(ObserverContext<RegionCoprocessorEnvironment> c, InternalScanner s) Called after the client closes a scanner.
RegionScanner	postScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan, RegionScanner s) Called after the client opens a new scanner.
void	postStartMaster(ObserverContext<MasterCoprocessorEnvironment> ctx) Master related hooks
void	preAddColumn(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName, HColumnDescriptor column) Called prior to adding a new column family to the table.
Result	preAppend(ObserverContext<RegionCoprocessorEnvironment> e, Append append) Called before Append.
void	preBatchMutate(ObserverContext<RegionCoprocessorEnvironment> c, MiniBatchOperationInProgress<Mutation> miniBatchOp) This will be called for every batch mutation operation happening at the server.
void	preDeleteColumn(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName, byte[] c) Called prior to deleting the entire column family.
void	preDisableTable(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName) Called prior to disabling a table.
void	preGetOp(ObserverContext<RegionCoprocessorEnvironment> e, Get get, List<Cell> results) Called before the client performs a Get
Result	preIncrement(ObserverContext<RegionCoprocessorEnvironment> e, Increment increment) Called before Increment.
void	preModifyColumn(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName, HColumnDescriptor descriptor) Called prior to modifying a column family's attributes.
void	preModifyTable(ObserverContext<MasterCoprocessorEnvironment> ctx, TableName tableName, HTableDescriptor htd) Called prior to modifying a table's properties.
void	prePrepareTimeStampForDeleteVersion(ObserverContext<RegionCoprocessorEnvironment> ctx, Mutation delete, Cell cell, byte[] byteNow, Get get) Called before the server updates the timestamp for version delete with latest timestamp.
void	preScannerClose(ObserverContext<RegionCoprocessorEnvironment> c, InternalScanner s) Called before the client closes a scanner.
boolean	preScannerNext(ObserverContext<RegionCoprocessorEnvironment> c, InternalScanner s, List<Result> result, int limit, boolean hasNext) Called before the client asks for the next row on a scanner.
RegionScanner	preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e, Scan scan, RegionScanner s) Called before the client opens a new scanner.
void	setAuths(com.google.protobuf.RpcController controller, VisibilityLabelsProtos.SetAuthsRequest request, com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done) rpc setAuths(.SetAuthsRequest) returns (.VisibilityLabelsResponse);
void	start(CoprocessorEnvironment env)
void	stop(CoprocessorEnvironment env)

Methods inherited from class org.apache.hadoop.hbase.coprocessor.BaseMasterAndRegionObserver

postAbortProcedure, postAddColumn, postAddColumnHandler, postAssign, postBalance, postBalanceSwitch, postCloneSnapshot, postCreateNamespace, postCreateTable, postCreateTableHandler, postDeleteColumn, postDeleteColumnHandler, postDeleteNamespace, postDeleteSnapshot, postDeleteTable, postDeleteTableHandler, postDisableTable, postDisableTableHandler, postEnableTable, postEnableTableHandler, postGetNamespaceDescriptor, postGetTableDescriptors, postGetTableDescriptors, postGetTableNames, postListNamespaceDescriptors, postListProcedures, postListSnapshot, postModifyColumn, postModifyColumnHandler, postModifyNamespace, postModifyTable, postModifyTableHandler, postMove, postRegionOffline, postRestoreSnapshot, postSetNamespaceQuota, postSetTableQuota, postSetUserQuota, postSetUserQuota, postSetUserQuota, postSnapshot, postTableFlush, postTruncateTable, postTruncateTableHandler, postUnassign, preAbortProcedure, preAddColumnHandler, preAssign, preBalance, preBalanceSwitch, preCloneSnapshot, preCreateNamespace, preCreateTable, preCreateTableHandler, preDeleteColumnHandler, preDeleteNamespace, preDeleteSnapshot, preDeleteTable, preDeleteTableHandler, preDisableTableHandler, preEnableTable, preEnableTableHandler, preGetNamespaceDescriptor, preGetTableDescriptors, preGetTableDescriptors, preGetTableNames, preListNamespaceDescriptors, preListProcedures, preListSnapshot, preMasterInitialization, preModifyColumnHandler, preModifyNamespace, preModifyTableHandler, preMove, preRegionOffline, preRestoreSnapshot, preSetNamespaceQuota, preSetTableQuota, preSetUserQuota, preSetUserQuota, preSetUserQuota, preShutdown, preSnapshot, preStopMaster, preTableFlush, preTruncateTable, preTruncateTableHandler, preUnassign

Methods inherited from class org.apache.hadoop.hbase.coprocessor.BaseRegionObserver

postAppend, postBatchMutate, postBatchMutateIndispensably, postBulkLoadHFile, postCheckAndDelete, postCheckAndPut, postClose, postCloseRegionOperation, postCompact, postCompact, postCompactSelection, postCompactSelection, postCompleteSplit, postDelete, postExists, postFlush, postFlush, postGetClosestRowBefore, postGetOp, postIncrement, postIncrementColumnValue, postPut, postRollBackSplit, postScannerFilterRow, postScannerNext, postSplit, postStartRegionOperation, postStoreFileReaderOpen, postWALRestore, postWALRestore, preAppendAfterRowLock, preBulkLoadHFile, preCheckAndDelete, preCheckAndDeleteAfterRowLock, preCheckAndPut, preCheckAndPutAfterRowLock, preClose, preCompact, preCompact, preCompactScannerOpen, preCompactScannerOpen, preCompactSelection, preCompactSelection, preDelete, preExists, preFlush, preFlush, preFlushScannerOpen, preGetClosestRowBefore, preIncrementAfterRowLock, preIncrementColumnValue, preOpen, prePut, preRollBackSplit, preSplit, preSplit, preSplitAfterPONR, preSplitBeforePONR, preStoreFileReaderOpen, preStoreScannerOpen, preWALRestore, preWALRestore

Methods inherited from class java.lang.Object

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

Constructor Detail

VisibilityController

public VisibilityController()

Method Detail

start

public void start(CoprocessorEnvironment env)
           throws IOException

Specified by:

start in interface Coprocessor

Overrides:

start in class BaseMasterAndRegionObserver

Throws:

IOException

stop

public void stop(CoprocessorEnvironment env)
          throws IOException

Specified by:

stop in interface Coprocessor

Overrides:

stop in class BaseMasterAndRegionObserver

Throws:

IOException

postStartMaster

public void postStartMaster(ObserverContext<MasterCoprocessorEnvironment> ctx)
                     throws IOException

Master related hooks

Specified by:

postStartMaster in interface MasterObserver

Overrides:

postStartMaster in class BaseMasterAndRegionObserver

Throws:

IOException

preModifyTable

public void preModifyTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
                  TableName tableName,
                  HTableDescriptor htd)
                    throws IOException

Description copied from interface: MasterObserver

Called prior to modifying a table's properties. Called as part of modify table RPC call. It can't bypass the default action, e.g., ctx.bypass() won't have effect.

Specified by:

preModifyTable in interface MasterObserver

Overrides:

preModifyTable in class BaseMasterAndRegionObserver

Parameters:

ctx - the environment to interact with the framework and master

tableName - the name of the table

htd - the HTableDescriptor

Throws:

IOException

preAddColumn

public void preAddColumn(ObserverContext<MasterCoprocessorEnvironment> ctx,
                TableName tableName,
                HColumnDescriptor column)
                  throws IOException

Description copied from interface: MasterObserver

Called prior to adding a new column family to the table. Called as part of add column RPC call.

Specified by:

preAddColumn in interface MasterObserver

Overrides:

preAddColumn in class BaseMasterAndRegionObserver

Parameters:

ctx - the environment to interact with the framework and master

tableName - the name of the table

column - the HColumnDescriptor

Throws:

IOException

preModifyColumn

public void preModifyColumn(ObserverContext<MasterCoprocessorEnvironment> ctx,
                   TableName tableName,
                   HColumnDescriptor descriptor)
                     throws IOException

Description copied from interface: MasterObserver

Called prior to modifying a column family's attributes. Called as part of modify column RPC call.

Specified by:

preModifyColumn in interface MasterObserver

Overrides:

preModifyColumn in class BaseMasterAndRegionObserver

Parameters:

ctx - the environment to interact with the framework and master

tableName - the name of the table

descriptor - the HColumnDescriptor

Throws:

IOException

preDeleteColumn

public void preDeleteColumn(ObserverContext<MasterCoprocessorEnvironment> ctx,
                   TableName tableName,
                   byte[] c)
                     throws IOException

Description copied from interface: MasterObserver

Called prior to deleting the entire column family. Called as part of delete column RPC call.

Specified by:

preDeleteColumn in interface MasterObserver

Overrides:

preDeleteColumn in class BaseMasterAndRegionObserver

Parameters:

ctx - the environment to interact with the framework and master

tableName - the name of the table

c - the column

Throws:

IOException

preDisableTable

public void preDisableTable(ObserverContext<MasterCoprocessorEnvironment> ctx,
                   TableName tableName)
                     throws IOException

Description copied from interface: MasterObserver

Called prior to disabling a table. Called as part of disable table RPC call. It can't bypass the default action, e.g., ctx.bypass() won't have effect.

Specified by:

preDisableTable in interface MasterObserver

Overrides:

preDisableTable in class BaseMasterAndRegionObserver

Parameters:

ctx - the environment to interact with the framework and master

tableName - the name of the table

Throws:

IOException

postOpen

public void postOpen(ObserverContext<RegionCoprocessorEnvironment> e)

Region related hooks

Specified by:

postOpen in interface RegionObserver

Overrides:

postOpen in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

postLogReplay

public void postLogReplay(ObserverContext<RegionCoprocessorEnvironment> e)

Description copied from interface: RegionObserver

Called after the log replay on the region is over.

Specified by:

postLogReplay in interface RegionObserver

Overrides:

postLogReplay in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

preBatchMutate

public void preBatchMutate(ObserverContext<RegionCoprocessorEnvironment> c,
                  MiniBatchOperationInProgress<Mutation> miniBatchOp)
                    throws IOException

Description copied from interface: RegionObserver

This will be called for every batch mutation operation happening at the server. This will be called after acquiring the locks on the mutating rows and after applying the proper timestamp for each Mutation at the server. The batch may contain Put/Delete. By setting OperationStatus of Mutations (MiniBatchOperationInProgress.setOperationStatus(int, OperationStatus)), RegionObserver can make Region to skip these Mutations.

Specified by:

preBatchMutate in interface RegionObserver

Overrides:

preBatchMutate in class BaseRegionObserver

Parameters:

c - the environment provided by the region server

miniBatchOp - batch of Mutations getting applied to region.

Throws:

IOException - if an error occurred on the coprocessor

prePrepareTimeStampForDeleteVersion

public void prePrepareTimeStampForDeleteVersion(ObserverContext<RegionCoprocessorEnvironment> ctx,
                                       Mutation delete,
                                       Cell cell,
                                       byte[] byteNow,
                                       Get get)
                                         throws IOException

Description copied from interface: RegionObserver

Called before the server updates the timestamp for version delete with latest timestamp.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

prePrepareTimeStampForDeleteVersion in interface RegionObserver

Overrides:

prePrepareTimeStampForDeleteVersion in class BaseRegionObserver

Parameters:

ctx - the environment provided by the region server

delete - - the parent mutation associated with this delete cell

cell - - The deleteColumn with latest version cell

byteNow - - timestamp bytes

get - - the get formed using the current cell's row. Note that the get does not specify the family and qualifier

Throws:

IOException

preScannerOpen

public RegionScanner preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> e,
                           Scan scan,
                           RegionScanner s)
                             throws IOException

Description copied from interface: RegionObserver

Called before the client opens a new scanner.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preScannerOpen in interface RegionObserver

Overrides:

preScannerOpen in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

scan - the Scan specification

s - if not null, the base scanner

Returns:

an RegionScanner instance to use instead of the base scanner if overriding default behavior, null otherwise

Throws:

IOException - if an error occurred on the coprocessor

postInstantiateDeleteTracker

public DeleteTracker postInstantiateDeleteTracker(ObserverContext<RegionCoprocessorEnvironment> ctx,
                                         DeleteTracker delTracker)
                                           throws IOException

Description copied from interface: RegionObserver

Called after the ScanQueryMatcher creates ScanDeleteTracker. Implementing this hook would help in creating customised DeleteTracker and returning the newly created DeleteTracker

Specified by:

postInstantiateDeleteTracker in interface RegionObserver

Overrides:

postInstantiateDeleteTracker in class BaseRegionObserver

Parameters:

ctx - the environment provided by the region server

delTracker - the deleteTracker that is created by the QueryMatcher

Returns:

the Delete Tracker

Throws:

IOException

postScannerOpen

public RegionScanner postScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c,
                            Scan scan,
                            RegionScanner s)
                              throws IOException

Description copied from interface: RegionObserver

Called after the client opens a new scanner.

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

postScannerOpen in interface RegionObserver

Overrides:

postScannerOpen in class BaseRegionObserver

Parameters:

c - the environment provided by the region server

scan - the Scan specification

s - if not null, the base scanner

Returns:

the scanner instance to use

Throws:

IOException - if an error occurred on the coprocessor

preScannerNext

public boolean preScannerNext(ObserverContext<RegionCoprocessorEnvironment> c,
                     InternalScanner s,
                     List<Result> result,
                     int limit,
                     boolean hasNext)
                       throws IOException

Description copied from interface: RegionObserver

Called before the client asks for the next row on a scanner.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preScannerNext in interface RegionObserver

Overrides:

preScannerNext in class BaseRegionObserver

Parameters:

c - the environment provided by the region server

s - the scanner

result - The result to return to the client if default processing is bypassed. Can be modified. Will not be returned if default processing is not bypassed.

limit - the maximum number of results to return

hasNext - the 'has more' indication

Returns:

'has more' indication that should be sent to client

Throws:

IOException - if an error occurred on the coprocessor

preScannerClose

public void preScannerClose(ObserverContext<RegionCoprocessorEnvironment> c,
                   InternalScanner s)
                     throws IOException

Description copied from interface: RegionObserver

Called before the client closes a scanner.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preScannerClose in interface RegionObserver

Overrides:

preScannerClose in class BaseRegionObserver

Parameters:

c - the environment provided by the region server

s - the scanner

Throws:

IOException - if an error occurred on the coprocessor

postScannerClose

public void postScannerClose(ObserverContext<RegionCoprocessorEnvironment> c,
                    InternalScanner s)
                      throws IOException

Description copied from interface: RegionObserver

Called after the client closes a scanner.

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

postScannerClose in interface RegionObserver

Overrides:

postScannerClose in class BaseRegionObserver

Parameters:

c - the environment provided by the region server

s - the scanner

Throws:

IOException - if an error occurred on the coprocessor

preGetOp

public void preGetOp(ObserverContext<RegionCoprocessorEnvironment> e,
            Get get,
            List<Cell> results)
              throws IOException

Description copied from interface: RegionObserver

Called before the client performs a Get

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preGetOp in interface RegionObserver

Overrides:

preGetOp in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

get - the Get request

results - The result to return to the client if default processing is bypassed. Can be modified. Will not be used if default processing is not bypassed.

Throws:

IOException - if an error occurred on the coprocessor

preAppend

public Result preAppend(ObserverContext<RegionCoprocessorEnvironment> e,
               Append append)
                 throws IOException

Description copied from interface: RegionObserver

Called before Append.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preAppend in interface RegionObserver

Overrides:

preAppend in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

append - Append object

Returns:

result to return to the client if bypassing default processing

Throws:

IOException - if an error occurred on the coprocessor

preIncrement

public Result preIncrement(ObserverContext<RegionCoprocessorEnvironment> e,
                  Increment increment)
                    throws IOException

Description copied from interface: RegionObserver

Called before Increment.

Call CoprocessorEnvironment#bypass to skip default actions

Call CoprocessorEnvironment#complete to skip any subsequent chained coprocessors

Specified by:

preIncrement in interface RegionObserver

Overrides:

preIncrement in class BaseRegionObserver

Parameters:

e - the environment provided by the region server

increment - increment object

Returns:

result to return to the client if bypassing default processing

Throws:

IOException - if an error occurred on the coprocessor

postMutationBeforeWAL

public Cell postMutationBeforeWAL(ObserverContext<RegionCoprocessorEnvironment> ctx,
                         RegionObserver.MutationType opType,
                         Mutation mutation,
                         Cell oldCell,
                         Cell newCell)
                           throws IOException

Description copied from interface: RegionObserver

Called after a new cell has been created during an increment operation, but before it is committed to the WAL or memstore. Calling ObserverContext.bypass() has no effect in this hook.

Specified by:

postMutationBeforeWAL in interface RegionObserver

Overrides:

postMutationBeforeWAL in class BaseRegionObserver

Parameters:

ctx - the environment provided by the region server

opType - the operation type

mutation - the current mutation

oldCell - old cell containing previous value

newCell - the new cell containing the computed value

Returns:

the new cell, possibly changed

Throws:

IOException

getService

public com.google.protobuf.Service getService()

Specified by:

getService in interface CoprocessorService

addLabels

public void addLabels(com.google.protobuf.RpcController controller,
             VisibilityLabelsProtos.VisibilityLabelsRequest request,
             com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done)

VisibilityEndpoint service related methods

Specified by:

addLabels in interface VisibilityLabelsProtos.VisibilityLabelsService.Interface

setAuths

public void setAuths(com.google.protobuf.RpcController controller,
            VisibilityLabelsProtos.SetAuthsRequest request,
            com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done)

Description copied from interface: VisibilityLabelsProtos.VisibilityLabelsService.Interface

rpc setAuths(.SetAuthsRequest) returns (.VisibilityLabelsResponse);

Specified by:

setAuths in interface VisibilityLabelsProtos.VisibilityLabelsService.Interface

getAuths

public void getAuths(com.google.protobuf.RpcController controller,
            VisibilityLabelsProtos.GetAuthsRequest request,
            com.google.protobuf.RpcCallback<VisibilityLabelsProtos.GetAuthsResponse> done)

Description copied from interface: VisibilityLabelsProtos.VisibilityLabelsService.Interface

rpc getAuths(.GetAuthsRequest) returns (.GetAuthsResponse);

Specified by:

getAuths in interface VisibilityLabelsProtos.VisibilityLabelsService.Interface

clearAuths

public void clearAuths(com.google.protobuf.RpcController controller,
              VisibilityLabelsProtos.SetAuthsRequest request,
              com.google.protobuf.RpcCallback<VisibilityLabelsProtos.VisibilityLabelsResponse> done)

Description copied from interface: VisibilityLabelsProtos.VisibilityLabelsService.Interface

rpc clearAuths(.SetAuthsRequest) returns (.VisibilityLabelsResponse);

Specified by:

clearAuths in interface VisibilityLabelsProtos.VisibilityLabelsService.Interface

listLabels

public void listLabels(com.google.protobuf.RpcController controller,
              VisibilityLabelsProtos.ListLabelsRequest request,
              com.google.protobuf.RpcCallback<VisibilityLabelsProtos.ListLabelsResponse> done)

Description copied from interface: VisibilityLabelsProtos.VisibilityLabelsService.Interface

rpc listLabels(.ListLabelsRequest) returns (.ListLabelsResponse);

Specified by:

listLabels in interface VisibilityLabelsProtos.VisibilityLabelsService.Interface