org.apache.hadoop.hbase.protobuf
Class ResponseConverter

java.lang.Object
  org.apache.hadoop.hbase.protobuf.ResponseConverter

@InterfaceAudience.Private
public final class ResponseConverter
extends Object

Helper utility to build protocol buffer responses, or retrieve data from protocol buffer responses.

Field Summary

static org.apache.commons.logging.Log

LOG

Method Summary

static ClientProtos.ActionResult	buildActionResult(Throwable t) Wrap a throwable to an action result.
static MasterAdminProtos.CatalogScanResponse	buildCatalogScanResponse(int numCleaned) Creates a response for the catalog scan request
static MasterAdminProtos.EnableCatalogJanitorResponse	buildEnableCatalogJanitorResponse(boolean prevValue) Creates a response for the catalog scan request
static RegionServerStatusProtos.GetLastFlushedSequenceIdResponse	buildGetLastFlushedSequenceIdResponse(long seqId) Creates a response for the last flushed sequence Id request
static AdminProtos.GetOnlineRegionResponse	buildGetOnlineRegionResponse(List<HRegionInfo> regions) A utility to build a GetOnlineRegionResponse.
static AdminProtos.GetServerInfoResponse	buildGetServerInfoResponse(ServerName serverName, int webuiPort) A utility to build a GetServerInfoResponse.
static AccessControlProtos.UserPermissionsResponse	buildUserPermissionsResponse(List<UserPermission> permissions) Converts the permissions list into a protocol buffer UserPermissionsResponse
static List<HRegionInfo>	getRegionInfos(AdminProtos.GetOnlineRegionResponse proto) Get the list of region info from a GetOnlineRegionResponse
static RegionOpeningState	getRegionOpeningState(AdminProtos.OpenRegionResponse proto) Get the region opening state from a OpenRegionResponse
static List<RegionOpeningState>	getRegionOpeningStateList(AdminProtos.OpenRegionResponse proto) Get a list of region opening state from a OpenRegionResponse
static byte[][]	getRegions(AdminProtos.RollWALWriterResponse proto) Get the list of regions to flush from a RollLogWriterResponse
static Result[]	getResults(CellScanner cellScanner, ClientProtos.ScanResponse response) Create Results from the cells using the cells meta data.
static List<Object>	getResults(ClientProtos.MultiResponse proto, CellScanner cells) Get the results from a protocol buffer MultiResponse
static boolean	isClosed(AdminProtos.CloseRegionResponse proto) Check if the region is closed from a CloseRegionResponse
static void	setControllerException(com.google.protobuf.RpcController controller, IOException ioe) Stores an exception encountered during RPC invocation so it can be passed back through to the client.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Method Detail

getResults

public static List<Object> getResults(ClientProtos.MultiResponse proto,
                                      CellScanner cells)
                               throws IOException

Get the results from a protocol buffer MultiResponse

Parameters:

proto - the protocol buffer MultiResponse to convert

cells - Cells to go with the passed in proto. Can be null.

Returns:

the results that were in the MultiResponse (a Result or an Exception).

Throws:

IOException

buildActionResult

public static ClientProtos.ActionResult buildActionResult(Throwable t)

Wrap a throwable to an action result.

Parameters:

t -

Returns:

an action result

buildUserPermissionsResponse

public static AccessControlProtos.UserPermissionsResponse buildUserPermissionsResponse(List<UserPermission> permissions)

Converts the permissions list into a protocol buffer UserPermissionsResponse

getRegions

public static byte[][] getRegions(AdminProtos.RollWALWriterResponse proto)

Get the list of regions to flush from a RollLogWriterResponse

Parameters:

proto - the RollLogWriterResponse

Returns:

the the list of regions to flush

getRegionInfos

public static List<HRegionInfo> getRegionInfos(AdminProtos.GetOnlineRegionResponse proto)

Get the list of region info from a GetOnlineRegionResponse

Parameters:

proto - the GetOnlineRegionResponse

Returns:

the list of region info

getRegionOpeningState

public static RegionOpeningState getRegionOpeningState(AdminProtos.OpenRegionResponse proto)

Get the region opening state from a OpenRegionResponse

Parameters:

proto - the OpenRegionResponse

Returns:

the region opening state

getRegionOpeningStateList

public static List<RegionOpeningState> getRegionOpeningStateList(AdminProtos.OpenRegionResponse proto)

Get a list of region opening state from a OpenRegionResponse

Parameters:

proto - the OpenRegionResponse

Returns:

the list of region opening state

isClosed

public static boolean isClosed(AdminProtos.CloseRegionResponse proto)

Check if the region is closed from a CloseRegionResponse

Parameters:

proto - the CloseRegionResponse

Returns:

the region close state

buildGetServerInfoResponse

public static AdminProtos.GetServerInfoResponse buildGetServerInfoResponse(ServerName serverName,
                                                                           int webuiPort)

A utility to build a GetServerInfoResponse.

Parameters:

serverName -

webuiPort -

Returns:

the response

buildGetOnlineRegionResponse

public static AdminProtos.GetOnlineRegionResponse buildGetOnlineRegionResponse(List<HRegionInfo> regions)

A utility to build a GetOnlineRegionResponse.

Parameters:

regions -

Returns:

the response

buildCatalogScanResponse

public static MasterAdminProtos.CatalogScanResponse buildCatalogScanResponse(int numCleaned)

Creates a response for the catalog scan request

Returns:

A CatalogScanResponse

buildEnableCatalogJanitorResponse

public static MasterAdminProtos.EnableCatalogJanitorResponse buildEnableCatalogJanitorResponse(boolean prevValue)

Creates a response for the catalog scan request

Returns:

A EnableCatalogJanitorResponse

buildGetLastFlushedSequenceIdResponse

public static RegionServerStatusProtos.GetLastFlushedSequenceIdResponse buildGetLastFlushedSequenceIdResponse(long seqId)

Creates a response for the last flushed sequence Id request

Returns:

A GetLastFlushedSequenceIdResponse

setControllerException

public static void setControllerException(com.google.protobuf.RpcController controller,
                                          IOException ioe)

Stores an exception encountered during RPC invocation so it can be passed back through to the client.

Parameters:

controller - the controller instance provided by the client when calling the service

ioe - the exception encountered

getResults

public static Result[] getResults(CellScanner cellScanner,
                                  ClientProtos.ScanResponse response)
                           throws IOException

Create Results from the cells using the cells meta data.

Parameters:

cellScanner -

response -

Returns:

results

Throws:

IOException