Programming Mobile Cloud Computing with Android

Programming Mobile Cloud Computing with Android

English | .MP4 | AVC 1280×720 15 fps | AAC 96 Kbps 48.0 KHz | 1.24 GB

Genre: eLearning

In this course—-the third in a trans-institution sequence of MOOCs on Mobile Cloud Computing with Android–we will learn how to connect Android mobile devices to cloud computing and data storage resources, essentially turning a device into an extension of powerful cloud-based services on popular cloud computing platforms, such as Google App Engine and Amazon EC2.

Instructors::

1. Dr. C. Jules White

Assistant Professor of Computer Science

Electrical Engineering and Computer Science

Vanderbilt University

2. Dr. Douglas C. Schmidt

Professor of Computer Science and Associate Chair of the Computer Science and Engineering Program

Electrical Engineering and Computer Science

Vanderbilt University

About the Course::

This MOOC describes by example how to connect Android mobile devices to clouds via the use of object-oriented design techniques, Java programming language features, Jetty middleware, Java Servlets, the Java Spring Framework, and cloud computing platforms, such as Google App Engine. Although there will be 10 weeks of lecture material, the required core of the course is six weeks long and can be completed flexibly within the ten week schedule to provide flexibility for students during the summer.

An extended case study project will be used throughout the required core of the MOOC to showcase architectures for communicating with the cloud using HTTP, server-side processing of mobile data using servlets and the Java Spring Framework, and scalable storage of data using no-SQL databases and other platforms. Due to the importance of building secure and scalable mobile/cloud platforms, this MOOC will not only show you how to program handheld systems that talk to the cloud, but how to do so securely, scalably, and efficiently. Security and scalability topics will be woven into discussions of cloud service creation so that students learn, from the start, how to create robust cloud services for mobile devices.

Four weeks of optional lecture material will also be provided for students who would like to gain a deeper understanding of the patterns and frameworks for building cloud infrastructure building. This material will be presented in the context of the open-source JAWS web server, which is implemented in C++ as part of the ACE open-source object-oriented concurrent and networked programming toolkit.

Although the cloud service topics in this course will be taught in the context of connecting mobile devices to the cloud, the concepts are broader and will give students the ability to create the cloud services to support large-scale web applications, such as social networking applications; cloud services for embedded systems, such as the Internet of Things and Industrial Internet; and wearable computing devices, such as Google Glass.

Course Includes::

Section 1: Talking to the Cloud with HTTP

Module 1: The HTTP Protocol

Introduction

What are Communication Protocols

Intro to HTTP

Why HTTP

What is a cloud service

HTTP Request Methods

HTTP Request Anatomy

URLs Query Parameters

Mime Types Content Type Header

Request Body Encoding

HTTP Response Anatomy

HTTP Response Codes

Cookies

Module 2: Designing Applications with HTTP Communication

Building Cloud Services on HTTP

Protocol Layering / HTTP Design Methodologies

REST

HTTP Polling

Push Messaging

Section 2: Building Java Cloud Services

Module 1: Java Servlets

What are Servlets

A First Cloud Service with a Servlet

Web.xml

Video Servlet Code Walkthrough

Video Servlet Test Walkthrough with HttpClient

Securely Handling Client Data Avoiding Injection Attacks

Module 2: Better Abstractions for Building Java Cloud Services

Intro to Java Annotations

HTTP to Object Marshalling

Intro to JSON

The Spring Dispatcher Servlet and the Controller Abstraction

Intro to Spring Controllers

Accepting Client Data with RequestParam Annotations

Accepting Client Data with PathVar Annotations

Accepting Client Data with RequestBody Annotations and JSON

Handling Multipart Data

Generating Responses with the ResponseBody Annotation

Custom Marshalling with Jackson Annotations Serializers/Deserializers

Spring Boot Application Structure

Spring Controller Code Walkthrough

Spring Controller Test Code Walkthrough

Module 3: Better Client-side Communication Abstractions

Introduction to Retrofit

Retrofit Client Code Walkthrough

Android Retrofit Client Code Walkthrough

Module 4: Building Loosely Coupled and Extensible Java Services

Spring Dependency Injection Auto-wiring

Spring Configuration Annotations

Spring Dependency Injection Controller Code Walkthrough

Spring Dependency Injection Controller Test Code Walkthrough

Section 3: Building Database-driven Java Cloud Services

Module 1: Persistent Objects

Object to DB Mapping

JPA

Entities

Repositories

Understanding SQL Injection Attacks

Spring Data Code Walkthrough

Module 2: RESTful Services for Persistent Objects

Spring Data REST

Spring Data REST Code Walkthrough

Section 4: Restricting Service Access with User Accounts

Module 1: Secure HTTP Communication

Man in the Middle Attacks Public Key Infrastructure

HTTPS

Module 2: What was I Saying: Keeping Track of Sessions

Sessions

Spring Security Overview

Spring Security Configuration in Java

Building a Custom UserDetailsService

Setting up a custom UserDetailsService

The Principal

Spring Security Role Annotations

More Complex Expression-based Pre Post Authorize Annotations

Spring Security Controller Code Walkthrough

Spring Security Controller Test Code Walkthrough

Module 3: Authenticating Mobile Clients

Stateful Sessions with Cookies Why They Aren’t Ideal for Mobile

Stateless Sessions with Tokens

OAuth 2.0

Spring Security OAuth 2.0

A Spring OAuth 2.0 Secured Service

A Retrofit Oauth 2.0 Client for Password Grants

Section 5: Deploying to the Cloud Scaling

Module 1: General Scaling Strategies

Stateless vs. Stateful Applications

Horizontal Scaling

Auto-scaling Horizontally

Caching

Offloading to Cloud Provider Services

Asynchronous IO in Controllers

Module 2: Scaling Up Data Storage

NoSQL Databases

Optimizing for Key-based Lookups

Optimizing for Reads vs. Writes

Contention Sharding

Mongo DB

Spring Data Mongo DB

Database as a Service

Amazon Dynamo

Spring Data Dynamo DB

App Engine Big Table

Module 3: Automating Packaging Deployment

Deploying to Infrastructure as a Service

Deploying to Amazon EC2

Packaging Web Applications into WAR files

Adapting Spring Boot Applications for Google App Engine

Deploying to App Engine

Module 4: Performance Testing

Intro to Cloud Service Performance Testing

Apache JMeter

Building Realistic Tests

Section 6: Patterns and Frameworks for Concurrent and Networked Server Software [Optional Material]

Module 1: Introduction to the Web Server Case Study

Applying Patterns and Frameworks to Concurrent and Networked Software

Overview of JAWS Web Server Case Study: Part 1

Overview of JAWS Web Server Case Study: Part 2

Overview of JAWS Web Server Case Study: Part 3

Module 2: Patterns and Frameworks for Service Access and Communication

Accidental Complexities with the Sockets API

The Wrapper Facade Pattern

ACE C++ Socket Wrapper Facades

Applying the ACE Wrapper Facades to a Web Client and Server

Module 3: Patterns and Frameworks for Synchronous Event Handling, Connections, and Service Initialization

The Reactor and Acceptor-Connector Patterns

The ACE Reactor Framework

Applying the ACE Reactor to JAWS

The ACE Acceptor-Connector Framework and Applying it to JAWS

Patterns and Frameworks for Service Configuration and Activiation

The Component Configurator Pattern

The ACE Service Configurator Framework

Applying the ACE Service Configurator to JAWS

Applying the Activator Pattern to JAWS

Patterns and Frameworks for Concurrency and Synchronization

The Active Object Pattern

The ACE Task Framework

Applying ACE Task and Acceptor-Connector to JAWS

The Half-Sync/Half-Async Pattern

Implementing Half-Sync/Half-Async Using ACE

The Monitor Object Pattern

Applying the Monitor Object and Synchronization Patterns to JAWS

The Leader/Followers Pattern

Applying the Leader/Followers Pattern and ACE_TP_Reactor to JAWS

Patterns and Frameworks for Asynchronous Event Handling

The Proactor pattern

The ACE Proactor Framework

Applying the ACE Proactor Framework to JAWS

The Asynchronous Completion Token Pattern and Applying it to JAWS

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