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Course Outline
Introduction, environment Setup and a first application
- The Akka framework
- The Actor model (definition & origins)
- Fault tolerance
- Location transparency
- Scaling
- Actors In Akka
- Setting up a Scala/Maven environment
- A first application in Akka
- Create the project
- Defining message Classes
- Defining actor Classes
- Defining the execution Class
- Architecture & configuration files
Actors & Typed Actors
- Anatomy of an Actor
- Creating Actors (default constructors, custom constructors, actor hierarchy)
- Messaging Models
- Sending messages
- Fire and forget
- Send and receive
- Receiving messages
- Replying to messages
- Forwarding messages
- Sending messages
- Stop Actors
- Kill Actors
Fault Tolerance - Actor Lifecycle & State
- Let it crash
- Supervision & supervisor strategy
- One for one
- All for one
- Lifecycle callbacks
- Receiving Messages
- Online/Offline state
- Hotswap: Become / Unbecome (& stash)
- Finite State Machine FSM
- States
- Behaviour
Concurrency
- Blocking vs event driven API
- Using futures & promises
Dispatchers & Routes
- Dispatchers
- Dispatcher as a pattern
- Executor & Dispatchers
- Types of dispatcher / Which to use when
- Default dispatcher
- Pinned dispatcher
- CallingThread dispatcher
- Balancing dispatcher
- Routers
- Types of Routers
- Router usage
- Router usage via application.conf
- Router usage for distributed actors
- Dynamically resizing routers
- Custom Router
Clustering
- About the Akka Cluster & the CAP theorem
- Defining a cluster
- Cluster Member Status
- Routing messages to the cluster
- Addressing remote actors
Mailboxes
- Types of mailboxes
- Durable mailboxes
- Circuit breakers
Transactions (time permitting)
Testing
- Writing unit test
- Access the actor reference
- Testing actor behaviour
- Testing exception scenarios
JMX and REST interfaces
- RESTful API
- JMX
Requirements
There are no specific requirements needed to attend this course.
21 Hours
Delivery Options
Private Group Training
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- Pre-course call with your trainer
- Customisation of the learning experience to achieve your goals -
- Bespoke outlines
- Practical hands-on exercises containing data / scenarios recognisable to the learners
- Training scheduled on a date of your choice
- Delivered online, onsite/classroom or hybrid by experts sharing real world experience
Private Group Prices RRP from €6840 online delivery, based on a group of 2 delegates, €2160 per additional delegate (excludes any certification / exam costs). We recommend a maximum group size of 12 for most learning events.
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