org.apache.hadoop.fs.s3a.s3guard

Interface DynamoDBClientFactory

All Superinterfaces:

org.apache.hadoop.conf.Configurable

All Known Implementing Classes:

DynamoDBClientFactory.DefaultDynamoDBClientFactory

@InterfaceAudience.Private
public interface DynamoDBClientFactory
extends org.apache.hadoop.conf.Configurable

Interface to create a DynamoDB client. Implementation should be configured for setting and getting configuration.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	DynamoDBClientFactory.DefaultDynamoDBClientFactory The default implementation for creating an AmazonDynamoDB.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG

Method Summary

Modifier and Type	Method and Description
com.amazonaws.services.dynamodbv2.AmazonDynamoDB	createDynamoDBClient(String defaultRegion, String bucket, com.amazonaws.auth.AWSCredentialsProvider credentials) Create a DynamoDB client object from configuration.

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

LOG

static final org.slf4j.Logger LOG

Method Detail

createDynamoDBClient

com.amazonaws.services.dynamodbv2.AmazonDynamoDB createDynamoDBClient(String defaultRegion,
                                                                      String bucket,
                                                                      com.amazonaws.auth.AWSCredentialsProvider credentials)
                                                               throws IOException

Create a DynamoDB client object from configuration. The DynamoDB client to create does not have to relate to any S3 buckets. All information needed to create a DynamoDB client is from the hadoop configuration. Specially, if the region is not configured, it will use the provided region parameter. If region is neither configured nor provided, it will indicate an error.

Parameters:

defaultRegion - the default region of the AmazonDynamoDB client

bucket - Optional bucket to use to look up per-bucket proxy secrets

credentials - credentials to use for authentication.

Returns:

a new DynamoDB client

Throws:

IOException - if any IO error happens