Software Architecture with Spring 5.0

Cover
Title Page
Copyright and Credits
Packt Upsell
Contributors
Table of Contents
Preface
Chapter 1: Software Architecture Today
	Defining software architecture
		I know my land
		I want to stay ahead
		Predicting the future
	Architecture and architects
	Software architecture principles
		Components
		Low coupling
		High cohesion
	SOLID principles
		The single responsibility principle (SRP)
		The Open–Closed Principle (OCP)
		The Liskov substitution principle 
		The interface segregation principle (ISP)
		The dependency inversion (DI) principle
	Conway's law
	Choosing the right technology for you
	New trends 
	Summary
Chapter 2: Software Architecture Dimensions
	Dimensions
		The business dimension
			Managing user requirements
			Identifying and tracking business metrics
		The data dimension
		The technical dimension
		The operations dimension
			How to deploy an application
			How interaction occurs among your components
			Dealing with infrastructure
				Understanding the infrastructure
				Versioning
				Testing
			Cloud versus on-premise
			Deploying your application
	The C4 model
		Context diagram
		Container diagram
		Components diagram
		Class diagram
	Summary
Chapter 3: Spring Projects
	Why Spring appeared
	Spring projects
		Spring Initializr
		Spring Boot in a Nutshell
			Servlet container integration
			Autoconfiguration
			Dependency management
				mvnw and mvnw.cmd
				pom.xml
				DemoApplication.java
				The application.properties file
				DemoApplicationTests.java
		Avoiding redeployment with developer tools
		Spring Data
		Supporting EIPs with Spring Integration
		Spring Batch
			The read step
			The process step
			The write step
		Securing applications with Spring Security
		Embracing (Spring) HATEOAS
		Spring Cloud and the microservices world
			Configuration server
			Service registry
			Edge services
				Microproxy
				API gateway
				Circuit breaker
		Reactive and Spring
			Publisher
			Subscriber
			Subscription
			Processor
		Project reactor
			Mono
			Flux
			Back pressure
		Reactive Spring Data
		Reactive REST services
	Summary
Chapter 4: Client-Server Architectures
	Understanding client-server architectures
		Server
			Scaling 
		Request
		Client
		Network
	Where to apply client-server architectures
	Implementing client-server architectures with Spring
		The server
			SOAP web services
			RESTful web services
			CORBA
			Sockets
			AMQP
		Implementing the server
			Banking-domain
			Banking-api
				Boundaries
				Domain
				Persistence
				Service
			Monitoring the server
			Testing
			Banking-client
				Authentication endpoint client
				Account balance endpoint client
		The clients
			JavaFX client
			Android client
			Thin client
	Summary
Chapter 5: Model-View-Controller Architectures
	MVC
		The Model (M)
		The View (V)
		The Controller (C)
		Benefits of using MVC 
		Common pitfalls
	Implementing applications using MVC
		Spring MVC
		Testing
			Test coverage
		UI frameworks
			Thymeleaf
		Securing an MVC application
			Basic authentication
			Implementing basic authentication
	Summary
Chapter 6: Event-Driven Architectures
	Underlying concepts and key aspects
		Command
		Event
	Patterns of event-driven architectures
		Event notification
		Event-carried state transfer
			Improving application performance
			Reducing the load on the source application
			Increasing the availability of the system
		Event sourcing
		CQRS
			Complex domain models
			Distinct paths to query and persist information
			Independent scaling
	Summary
Chapter 7: Pipe-and-Filter Architectures
	Introducing Pipe-and-Filter concepts
		Filters
		Pipes
	Boarding Pipe-and-Filter architectures
	Use cases for Pipe-and-Filter architecture
	Spring Batch
	Implementing pipes with Spring Batch
	Summary
Chapter 8: Microservices
	Principles of microservices
		Size
		Autonomous
		Working well together
		Advantages
			Alignment to the single responsibility principle
			Continuous releases
			Independent scalability
			Increased adoption of new technologies
		Drawbacks
			Too many options
			Slow at the beginning
			Monitoring
			Transactions and eventual consistency
	Modeling microservices
	Speeding up
		Accelerating the development process
		Embracing tests
		Going to production
	Implementing microservices
		Dynamic configuration
			Implementing a configuration server
			Implementing a configuration client
		Service discovery and registration
			Introducing Eureka
			Implementing a Netflix Eureka service registry
			Implementing a service registry client
			Netflix Ribbon
		Edge services
			Introducing Zuul
		CAP theorem
			Consistency
			High availability
			Partition tolerance
		Circuit breaker
			Hystrix
	Summary
Chapter 9: Serverless Architectures
	An introduction to serverless architecture
		Infrastructure and file storage
		Benefits and pitfalls
		Backend as a service
		Function as a service
		Concerns about serverless architectures
			Vendor lock-in
			Security
			Framework support
			Troubleshooting
		Examples and common use cases
			Adopting serverless architectures for SPA 
	Implementing FaaS with Spring Cloud Functions
		Functions with Spring
			Coding the example
		Adapters
		AWS Lambda adapter
		Azure adapter
	Summary
Chapter 10: Containerizing Your Applications
	Containers
		Basic concepts
			Containers and images
		Basic commands
			Running containers
			Working with containers
			Working with images
		Building your own images
			FROM command
			MAINTAINER command
			RUN command
			ENV command
			EXPOSE command
			CMD command
	Containerizing applications
		Docker Gradle plugin
	Registries
		Publishing images
	Provisioning multiple-container environments
		Docker Compose
			Linking containers
				links
				depends_on
	Container orchestration with Kubernetes
		Pod
		Labels
		Replication controllers
		Services
	Summary
Chapter 11: DevOps and Release Management
	Silos
		How to break silos
	DevOps culture
		Motivations
		DevOps adoption
	Embracing automation
	Infrastructure as code
		Spring application and DevOps practices
			Supporting different environments
			Selecting profiles
		Vagrant
			Working with Vagrant
	Release management
		pipelines
			Continuous integration
			Continuous delivery and continuous deployment
			Automating pipelines
			Jenkins
	Summary
Chapter 12: Monitoring
	Monitoring
		Monitoring Spring applications
	Application Performance Management (APM) tools
		New Relic
	Summary
Chapter 13: Security
	Why security is important as a part of an application's architecture
		Key security recommendations
			Authentication and authorization
			Cryptography
			Data input validation
			Sensitive data
			Social engineering
			OWASP Top 10
			Penetration testing
	Authentication and authorization as a service
	Summary
Chapter 14: High Performance
	Why performance matters
		Scalability
			Horizontal scalability
			Vertical scalability
		High availability
		Performance
	The key recommendation to avoid performance issues
		Identifying bottlenecks
		Profiling applications 
			Visual VM
		SQL query optimizations
		A load test example
	Summary
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Index