AWS SDK for Java, version 2.0 - Albany NY - January 18 2018

AWS User Group
Albany NY
January 18, 2018
#java #scala #gilttech #aws #awscloud

Transcript

1. Sean Sullivan January 18, 2018 AWS User Group Albany NY AWS SDK for Java version 2.0
2. Thank you CommerceHub
3. software engineer 21 years on the JVM Portland Oregon back office systems Hudson’s Bay Company About me
4. Agenda Hudson’s Bay Company SDK for Java • version 1.x • version 2.x Scala and AWS
5. https://en.wikipedia.org/wiki/Hudson%27s_Bay_Company
6. Toronto NYC Albany
7. saksfifthavenue.com saksoff5th.com lordandtaylor.com gilt.com thebay.com
8. gilt.com
9. gilt.com
10. Web Checkout Android Checkout iPhone Checkout Checkout service
11. AWS SDK for Java
12. SDK v2 announced June 2017 @awsforjava
13. “Under the hood, we use an HTTP client built on top of Netty to make the non- blocking HTTP call” “first class support for non-blocking I/O in our async clients” source: AWS Developer Blog
14. import java.util.concurrent.CompletableFuture; DynamoDBAsyncClient client = DynamoDBAsyncClient.builder() .region(Region.US_WEST_2) .build(); CompletableFuture<ListTablesResponse> response = client.listTables(ListTablesRequest.builder().build()); CompletableFuture<List<String>> tableNames = response.thenApply(ListTablesResponse::tableNames); tableNames.whenComplete((tables, err) -> { if (tables != null) { tables.forEach(System.out::println); } else { err.printStackTrace(); } }); SDK v2
15. Github projects aws-sdk-java aws-sdk-java-v2
16. SDK v2 Developer Preview
17. Pull Request
18. SDK v2 Maven artifacts
19. https://search.maven.org/
20. <dependency> <groupId>com.amazonaws<groupId> <artifactId>aws-java-sdk-dynamodb</artifactId> <version>1.11.267</version> </dependency> Maven dependencies SDK v1 <dependency> <groupId>software.amazon.awssdk<groupId> <artifactId>dynamodb</artifactId> <version>2.0.0-preview7</version> </dependency> SDK v2
21. import com.amazonaws.services.cloudwatch.AmazonCloudWatchClient; import com.amazonaws.services.cloudwatch.AmazonCloudWatchClientBuilder; import com.amazonaws.services.cloudwatch.model.MetricDatum; import com.amazonaws.services.cloudwatch.model.PutMetricDataRequest; Java packages SDK v1 import software.amazon.awssdk.services.cloudwatch.CloudWatchAsyncClient; import software.amazon.awssdk.services.cloudwatch.model.MetricDatum; import software.amazon.awssdk.services.cloudwatch.model.PutMetricDataRequest; SDK v2
22. distinct Maven artifact names distinct Java package names SDK v2 and SDK v1 can co-exist in a Java application SDK v1 jar SDK v2 jar
23. SDK v2 programming API • Immutable clients and models • Enhanced pagination • Smart configuration merging • Forward-compatible enums • Streaming operations as first-class concepts
24. AWS SDK v2 in a Scala application?
25. val awsSdkVersion = "2.0.0-preview-7" "org.scala-lang.modules" %% "scala-java8-compat" % "0.8.0", "software.amazon.awssdk" % "cloudwatch" % awsSdkVersion, "software.amazon.awssdk" % "dynamodb" % awsSdkVersion build.sbt
26. import scala.compat.java8.FutureConverters._ import scala.collection.JavaConverters._ Foo.scala
27. FutureConverters?
28. java.util.concurrent.CompletableFuture scala.concurrent.Future
29. FutureConverters.scala
30. Gilt’s AWS CloudWatch Scala library
31. “A tiny Scala wrapper around AWS CloudWatch Java client”
32. https://github.com/gilt/gfc-aws-cloudwatch
33. how to migrate gfc-aws-cloudwatch from SDK v1 to SDK v2 ?
34. https://github.com/ gilt/gfc-aws- cloudwatch/pull/8/ files
35. Conclusion SDK v1 — production ready SDK v2 — coming soon github.com/aws twitter.com/awsforjava
36. The end
38. Bonus material
39. “Developing Applications on AWS in the JVM” AWS re:Invent 2017
40. https://www.slideshare.net/AmazonWebServices/ dev205developing-applications-on-aws-in-the-jvm