org.apache.hudi.aws.transaction.lock

Class DynamoDBBasedLockProvider

java.lang.Object

org.apache.hudi.aws.transaction.lock.DynamoDBBasedLockProvider

All Implemented Interfaces:

AutoCloseable, Lock, LockProvider<com.amazonaws.services.dynamodbv2.LockItem>

@NotThreadSafe
public class DynamoDBBasedLockProvider
extends Object
implements LockProvider<com.amazonaws.services.dynamodbv2.LockItem>

A DynamoDB based lock. This LockProvider implementation allows to lock table operations using DynamoDB. Users need to have access to AWS DynamoDB to be able to use this lock.

Field Summary

Fields

Modifier and Type	Field and Description
protected DynamoDbBasedLockConfig	dynamoDBLockConfiguration

Constructor Summary

Constructors

Constructor and Description
DynamoDBBasedLockProvider(LockConfiguration lockConfiguration, org.apache.hadoop.conf.Configuration conf)
DynamoDBBasedLockProvider(LockConfiguration lockConfiguration, org.apache.hadoop.conf.Configuration conf, software.amazon.awssdk.services.dynamodb.DynamoDbClient dynamoDB)

Method Summary

Modifier and Type	Method and Description
void	close()
protected String	generateLogStatement(LockState state, String suffix)
com.amazonaws.services.dynamodbv2.LockItem	getLock()
boolean	tryLock(long time, TimeUnit unit)
void	unlock()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hudi.common.lock.LockProvider

getCurrentOwnerLockInfo, lock, lockInterruptibly, newCondition, tryLock

Field Detail

dynamoDBLockConfiguration

protected final DynamoDbBasedLockConfig dynamoDBLockConfiguration

Constructor Detail

DynamoDBBasedLockProvider

public DynamoDBBasedLockProvider(LockConfiguration lockConfiguration,
                                 org.apache.hadoop.conf.Configuration conf)

DynamoDBBasedLockProvider

public DynamoDBBasedLockProvider(LockConfiguration lockConfiguration,
                                 org.apache.hadoop.conf.Configuration conf,
                                 software.amazon.awssdk.services.dynamodb.DynamoDbClient dynamoDB)

Method Detail

tryLock

public boolean tryLock(long time,
                       TimeUnit unit)

Specified by:

tryLock in interface Lock

unlock

public void unlock()

Specified by:

unlock in interface Lock

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface LockProvider<com.amazonaws.services.dynamodbv2.LockItem>

getLock

public com.amazonaws.services.dynamodbv2.LockItem getLock()

Specified by:

getLock in interface LockProvider<com.amazonaws.services.dynamodbv2.LockItem>

generateLogStatement

protected String generateLogStatement(LockState state,
                                      String suffix)