package org.sample.aws.alexa.hello; import com.amazonaws.regions.Regions; import com.amazonaws.services.dynamodbv2.AmazonDynamoDB; import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder; import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper; /** * @author Arun Gupta */ public class DBUtil { private static AmazonDynamoDB dynamodbClient; private static AmazonDynamoDB getClient() { if (null != dynamodbClient) { return dynamodbClient; } String region = System.getProperty("DYNAMODB_REGION"); if (null == region) { System.err.println("Region not set, default \"" + Regions.US_EAST_1.name() + "\" is used"); region = Regions.US_EAST_1.name(); } System.out.println("DynamoDB region: " + region); dynamodbClient = AmazonDynamoDBClientBuilder.standard() .withRegion(region) .build(); return dynamodbClient; } public static Person getPerson(String id) { DynamoDBMapper mapper = new DynamoDBMapper(getClient()); return mapper.load(Person.class, id); } }