Opis: Reactive Messaging Patterns with the Actor Model - Vaughn Vernon

USE THE ACTOR MODEL TO BUILD SIMPLER SYSTEMS WITH BETTER PERFORMANCE AND SCALABILITY Enterprise software development has been much more difficult and failure-prone than it needs to be. Now, veteran software engineer and author Vaughn Vernon offers an easier and more rewarding method to succeeding with Actor model. Reactive Messaging Patterns with the Actor Model shows how the reactive enterprise approach, Actor model, Scala, and Akka can help you overcome previous limits of performance and scalability, and skillfully address even the most challenging non-functional requirements. Reflecting his own cutting-edge work, Vernon shows architects and developers how to translate the longtime promises of Actor model into practical reality. First, he introduces the tenets of reactive software, and shows how the message-driven Actor model addresses all of them-making it possible to build systems that are more responsive, resilient, and elastic. Next, he presents a practical Scala bootstrap tutorial, a thorough introduction to Akka and Akka Cluster, and a full chapter on maximizing performance and scalability with Scala and Akka. Building on this foundation, you'll learn to apply enterprise application and integration patterns to establish message channels and endpoints; efficiently construct, route, and transform messages; and build robust systems that are simpler and far more successful. Coverage Includes * How reactive architecture replaces complexity with simplicity throughout the core, middle, and edges* The characteristics of actors and actor systems, and how Akka makes them more powerful* Building systems that perform at scale on one or many computing nodes* Establishing channel mechanisms, and choosing appropriate channels for each application and integration challenge* Constructing messages to clearly convey a sender's intent in communicating with a receiver* Implementing a Process Manager for your Domain-Driven Designs* Decoupling a message's source and destination, and integrating appropriate business logic into its router* Understanding the transformations a message may experience in applications and integrations* Implementing persistent actors using Event Sourcing and reactive views using CQRS Find unique online training on Domain-Driven Design, Scala, Akka, and other software craftsmanship topics using the for{comprehension} website atForeword xiii Preface xv Acknowledgments xxiii About the Author xxv Chapter 1: Discovering the Actor Model and the Enterprise, All Over Again 1 Why Enterprise Software Development Is Hard 1 Introducing Reactive Applications 5 Enterprise Applications 9 Actor Model 10 The Actor Way Is Explicit 22 What Next? 24 Chapter 2: The Actor Model with Scala and Akka 25 How to Get Scala and Akka 26 Programming with Scala 29 Programming with Akka 43 Summary 104 Chapter 3: Performance Bent 107 Transistors Matter 107 Clock Speed Matters 109 Cores and Cache Matter 111 Scale Matters 112 Multithreading Is Hard 116 How the Actor Model Helps 122 The Patterns 126 Chapter 4: Messaging with Actors 127 Message Channel 128 Message 130 Pipes and Filters 135 Message Router 140 Message Translator 143 Message Endpoint 145 Summary 147 Chapter 5: Messaging Channels 149 Point-to-Point Channel 151 Publish-Subscribe Channel 154 Datatype Channel 167 Invalid Message Channel 170 Dead Letter Channel 172 Guaranteed Delivery 175 Channel Adapter 183 Message Bridge 185 Message Bus 192 Summary 200 Chapter 6: Message Construction 201 Command Message 202 Document Message 204 Event Message 207 Request-Reply 209 Return Address 211 Correlation Identifier 215 Message Sequence 217 Message Expiration 218 Format Indicator 222 Summary 226 Chapter 7: Message Routing 227 Content-Based Router 228 Message Filter 232 Dynamic Router 237 Recipient List 245 Splitter 254 Aggregator 257 Resequencer 264 Composed Message Processor 270 Scatter-Gather 272 Routing Slip 285 Process Manager 292 Message Broker 308 Summary 310 Chapter 8: Message Transformation 313 Envelope Wrapper 314 Content Enricher 317 Content Filter 321 Claim Check 325 Normalizer 332 Canonical Message Model 333 Summary 336 Chapter 9: Message Endpoints 337 Messaging Gateway 338 Messaging Mapper 344 Transactional Client/Actor 351 Polling Consumer 362 Event-Driven Consumer 371 Competing Consumers 371 Message Dispatcher 374 Selective Consumer 377 Durable Subscriber 379 Idempotent Receiver 382 Service Activator 390 Summary 391 Chapter 10: System Management and Infrastructure 393 Control Bus 394 Detour 395 Wire Tap 397 Message Metadata/History 398 Message Journal/Store 402 Smart Proxy 406 Test Message 411 Channel Purger 414 Summary 416 Appendix A: Dotsero: An Akka-like Toolkit for .NET 417 Dotsero Actor System 417 Actors Using C# and .NET 420 Dotsero Implementation 425 Summary 427 Bibliography 429 Index 433

Szczegóły: Reactive Messaging Patterns with the Actor Model - Vaughn Vernon

Tytuł: Reactive Messaging Patterns with the Actor Model
Autor: Vaughn Vernon
Producent: Addison Wesley Publishing Company
ISBN: 9780133846836
Rok produkcji: 2015
Ilość stron: 480
Oprawa: Twarda
Waga: 0.89 kg

Recenzje: Reactive Messaging Patterns with the Actor Model - Vaughn Vernon