Java Pub House

Whew! So we took a big break over summer (like Bob said, we were just swamped with work.. oof), but we are BACK! and like always we are ready to explore even deeper Java topics for the professional developer.

This time we set our sights in Apache Kafka, one of the (if not THE) dominant distributed messaging framework / broker. If you have been integrating webservices, you might have been running into message brokers (and applying Enterprise Integration Patterns), well if so, you most likely have run into Kafka. 

We dive into "What does Kafka Solve", into what it is (and isn't), and why you should use it (or not use it), and how it differs from traditionalling Messaging systems.

In all, this is another episode of "Cloud stuff", and, like you know, that's where everything interesting is at! So have a listen! 

http://www.javapubhouse.com/datadog We thank DataDogHQ for sponsoring this podcast episode

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Apache Kafka https://kafka.apache.org/

Kafka Quick Start https://developer.confluent.io/quickstart/kafka-on-confluent-cloud/

What IS Apache Kafka https://developer.confluent.io/what-is-apache-kafka/

Apache Kafka Quickstart (With Tim Berglund, Hi!!!) https://kafka.apache.org/quickstart 

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Yeah! so we have been working with the cloud for a while, terms like K8s, EC2, Route53, BlobData, CLI has been swinged around... and is a little mysterious, and sometimes looks like a black box where you just click buttons, add things, type commands, until it finally something good happens. But if something bad happens, we tend not to have the slightest idea on why!

Never fear, on this episode of PubHouse we start from the very beginning on describing (And dismantling) what the "Cloud" really is... Starting on how we got there, what are the different "components" of most clouds, and how to reason about them.

This way, the next time something unpredictable happens, you will know exactly where to start troubleshooting and how to navigate this space! This is the first episode of a series (probably a series of 2) on Cloud technologies. So if you never been exposed to the cloud and you're curious, or even if you've been working on it but everything sounds mysterious, then dive in!

http://www.javapubhouse.com/datadog

We thank DataDogHQ for sponsoring this podcast episode

Don't forget to SUBSCRIBE to our cool NewsCast OffHeap! http://www.javaoffheap.com/

Intro to AWS  https://docs.aws.amazon.com/whitepapers/latest/aws-overview/introduction.html

What is Elastic Load Balancing https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/what-is-load-balancing.html

What is Amazon Route 53 https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/Welcome.html

EC2 vs ECS vs Lambda https://www.cloudzero.com/blog/ecs-vs-ec2

Intro to Azure Fundamentals https://docs.microsoft.com/en-us/learn/modules/intro-to-azure-fundamentals/

Azure Containter Registry https://azure.microsoft.com/en-us/services/container-registry/#features

Azure Compute https://azure.microsoft.com/en-us/services/virtual-machines/#overview

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Ok, so is time to talk about something secretive! Like API Passwords, Auth tokens, or keys... these are things that we want to have as a Secret within our microservice. And yeah, adding them into your source code is a big no-no

Here we cover the dos (and dont's) of secret management, what are the benefits and drawbacks of the different solutions and we explore some of our favorite open source (and Cloud tools) for keeping secrets. We answer some important questions on how to effectively store and manage these secrets (the short answer is don't try to do it yourself!), and end up with the list of best practices for it.

If you are building a non-trivial (or interesting) web service, this is a must-listen episode!

http://www.javapubhouse.com/datadog We thank DataDogHQ for sponsoring this podcast episode

Don't forget to SUBSCRIBE to our cool NewsCast OffHeap! http://www.javaoffheap.com/

Language Features

Using AWS Secrets Manager to manage secrets in Spring Boot https://raymondhlee.wordpress.com/2019/10/11/using-aws-secrets-manager-to-manage-secrets-in-spring-boot-applications/

AWS Secrets Manager https://aws.amazon.com/secrets-manager/

Spring Cloud AWS https://cloud.spring.io/spring-cloud-aws/reference/html/

Hashicorp Vault https://www.vaultproject.io/

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So is time to celebrate! We got a new box of toys with the new release of Java! This is also a Long-Term-Support release which means that's usually a "good one" to jump into! Switch Expressions! Helpful Nullpointers, Sealed Classes... there is a TON that's new

And we got the best Doctor in town to walk us through all of them. We're of course talking about Stuart Marks! (AKA Dr. Deprecator). We cover most of the important features from 11 to 17 (there's a ton that was left out, so keep following the links to know more!)

http://www.javapubhouse.com/datadog We thank DataDogHQ for sponsoring this podcast episode

Don't forget to SUBSCRIBE to our cool NewsCast OffHeap! http://www.javaoffheap.com/

Language Features

Pattern Matching for instanceof https://docs.oracle.com/en/java/javase/16/language/pattern-matching-instanceof-operator.html

Switch Expressions https://docs.oracle.com/en/java/javase/13/language/switch-expressions.html

Sealed Classes https://docs.oracle.com/en/java/javase/15/language/sealed-classes-and-interfaces.html

Text Blocks https://docs.oracle.com/en/java/javase/13/text_blocks/index.html

Debugging Features

Helpful NullPointerExceptions https://www.baeldung.com/java-14-nullpointerexception

Performance Features

New Garbage Collectors (Shenandoah, ZGC) https://blogs.oracle.com/javamagazine/post/understanding-the-jdks-new-superfast-garbage-collectors

Unix-Domain Socket Channels https://openjdk.java.net/jeps/380

Deprecation & Platform evolution

Remove the Nashorn JavaScript Engine (Plug Graal!) https://openjdk.java.net/jeps/372

Deprecate the Security Manager for Removal and Applets https://openjdk.java.net/jeps/411

Strongly Encapsulate JDK Internals https://openjdk.java.net/jeps/403

Warnings for Value-Based Classes https://openjdk.java.net/jeps/390

Do you like the episodes? Want more? Help us out! Buy us a beer! https://www.javapubhouse.com/beer

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