org.apache.hadoop.hbase.quotas

Class SpaceQuotaHelperForTests.SpaceQuotaSnapshotPredicate

java.lang.Object

org.apache.hadoop.hbase.quotas.SpaceQuotaHelperForTests.SpaceQuotaSnapshotPredicate

All Implemented Interfaces:

Waiter.Predicate<Exception>

Enclosing class:

SpaceQuotaHelperForTests

abstract static class SpaceQuotaHelperForTests.SpaceQuotaSnapshotPredicate
extends Object
implements Waiter.Predicate<Exception>

Abstraction to simplify the case where a test needs to verify a certain state on a SpaceQuotaSnapshot. This class fails-fast when there is no such snapshot obtained from the Master. As such, it is not useful to verify the lack of a snapshot.

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.hadoop.hbase.client.Connection	conn
private String	ns
private org.apache.hadoop.hbase.TableName	tn

Constructor Summary

Constructors

Constructor and Description
SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn, String ns)
SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn, org.apache.hadoop.hbase.TableName tn)
SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn, org.apache.hadoop.hbase.TableName tn, String ns)

Method Summary

Modifier and Type	Method and Description
boolean	evaluate() Perform a predicate evaluation.
(package private) abstract boolean	evaluate(org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot snapshot) Must determine if the given SpaceQuotaSnapshot meets some criteria.

Methods inherited from class java.lang.Object

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

Field Detail

conn

private final org.apache.hadoop.hbase.client.Connection conn

tn

private final org.apache.hadoop.hbase.TableName tn

ns

private final String ns

Constructor Detail

SpaceQuotaSnapshotPredicate

SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn,
                            org.apache.hadoop.hbase.TableName tn)

SpaceQuotaSnapshotPredicate

SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn,
                            String ns)

SpaceQuotaSnapshotPredicate

SpaceQuotaSnapshotPredicate(org.apache.hadoop.hbase.client.Connection conn,
                            org.apache.hadoop.hbase.TableName tn,
                            String ns)

Method Detail

evaluate

public boolean evaluate()
                 throws Exception

Description copied from interface: Waiter.Predicate

Perform a predicate evaluation.

Specified by:

evaluate in interface Waiter.Predicate<Exception>

Returns:

the boolean result of the evaluation.

Throws:

Exception

evaluate

abstract boolean evaluate(org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot snapshot)
                   throws Exception

Must determine if the given SpaceQuotaSnapshot meets some criteria.

Parameters:

snapshot - a non-null snapshot obtained from the HBase Master

Returns:

true if the criteria is met, false otherwise

Throws:

Exception