Package org.apache.hadoop.hdfs.server.federation.router

Class Quota

java.lang.Object

org.apache.hadoop.hdfs.server.federation.router.Quota

public class Quota
extends java.lang.Object

Module that implements the quota relevant RPC calls ClientProtocol.setQuota(String, long, long, StorageType) and ClientProtocol.getQuotaUsage(String) in the RouterRpcServer.

Constructor Summary

Constructors

Constructor	Description
Quota(Router router, RouterRpcServer server)

Method Summary

Modifier and Type	Method	Description
static boolean	andByStorageType(java.util.function.Predicate<org.apache.hadoop.fs.StorageType> predicate)	Invoke predicate by each storage type and bitwise AND the results.
static void	eachByStorageType(java.util.function.Consumer<org.apache.hadoop.fs.StorageType> consumer)	Invoke consumer by each storage type.
org.apache.hadoop.fs.QuotaUsage	getQuotaUsage(java.lang.String path)	Get aggregated quota usage for the federation path.
static boolean	orByStorageType(java.util.function.Predicate<org.apache.hadoop.fs.StorageType> predicate)	Invoke predicate by each storage type and bitwise inclusive OR the results.
void	setQuota(java.lang.String path, long namespaceQuota, long storagespaceQuota, org.apache.hadoop.fs.StorageType type, boolean checkMountEntry)	Set quota for the federation path.

Methods inherited from class java.lang.Object

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

Constructor Detail

Quota

public Quota(Router router,
             RouterRpcServer server)

Method Detail

setQuota

public void setQuota(java.lang.String path,
                     long namespaceQuota,
                     long storagespaceQuota,
                     org.apache.hadoop.fs.StorageType type,
                     boolean checkMountEntry)
              throws java.io.IOException

Set quota for the federation path.

Parameters:

path - Federation path.

namespaceQuota - Name space quota.

storagespaceQuota - Storage space quota.

type - StorageType that the space quota is intended to be set on.

checkMountEntry - whether to check the path is a mount entry.

Throws:

java.io.IOException - If the quota system is disabled or if checkMountEntry is true and the path is a mount entry.

getQuotaUsage

public org.apache.hadoop.fs.QuotaUsage getQuotaUsage(java.lang.String path)
                                              throws java.io.IOException

Get aggregated quota usage for the federation path.

Parameters:

path - Federation path.

Returns:

Aggregated quota.

Throws:

java.io.IOException - If the quota system is disabled.

eachByStorageType

public static void eachByStorageType(java.util.function.Consumer<org.apache.hadoop.fs.StorageType> consumer)

Invoke consumer by each storage type.

Parameters:

consumer - the function consuming the storage type.

orByStorageType

public static boolean orByStorageType(java.util.function.Predicate<org.apache.hadoop.fs.StorageType> predicate)

Invoke predicate by each storage type and bitwise inclusive OR the results.

Parameters:

predicate - the function test the storage type.

Returns:

true if bitwise OR by all storage type returns true, false otherwise.

andByStorageType

public static boolean andByStorageType(java.util.function.Predicate<org.apache.hadoop.fs.StorageType> predicate)

Invoke predicate by each storage type and bitwise AND the results.

Parameters:

predicate - the function test the storage type.

Returns:

true if bitwise AND by all storage type returns true, false otherwise.