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Getting Started with IBM WebSphere sMash, Portable Documents

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  • Sample Content
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  • Copyright 2011
  • Dimensions: 7 X 9-1/8
  • Pages: 400
  • Edition: 1st
  • eBook (Watermarked)
  • ISBN-10: 0-13-704364-3
  • ISBN-13: 978-0-13-704364-4

Use IBM WebSphere sMash to Rapidly Deliver Scalable, Flexible Web 2.0 Applications

With the radically new IBM WebSphere sMash and the Project Zero platform, it’s far easier to develop, assemble, and run applications and mashups that align tightly with SOA enterprise infrastructures. Getting Started with IBM WebSphere sMash covers all aspects of architecting, designing, and developing solutions with these breakthrough technologies.

Authored by three IBM leading sMash experts, this practical tutorial shows how to create state-of-the-art web applications far more rapidly than you ever could with traditional Java or .NET enterprise platforms.

As you walk through sample projects based on real-life scenarios, you’ll master both basic and advanced sMash features, ranging from request handling to event processing, database access to security. You’ll also learn agile best practices for consistently writing better web applications, delivering them sooner, and getting more value from them.

Coverage includes

  • Installing and configuring IBM WebSphere sMash, and choosing your development environment
  • Creating handlers to efficiently service all types of requests
  • Understanding sMash’s “convention over configuration” approach, and knowing when to override convention
  • Rendering responses that include visual content, data, and other resources
  • Connecting with databases via Project Zero’s powerful data access API
  • Using sMash’s security model to protect inbound and outbound connections
  • Building more flexible applications with sMash’s sophisticated event processing
  • Extending sMash development to non-programmers with Assemble Flow
  • Programming client-side code with the Dojo Toolkit
  • Taking advantage of sMash’s PHP support

Downloads

Sample Code (771 KB .zip)

Table of Contents

Introduction 1

Situational Applications 1

Rapid Application Development 1

IBM WebSphere sMash Development Process 2

Available IBM WebSphere sMash Offerings 2

What Is Covered in This Book? 3

Chapter 1 Installing the IBM WebSphere sMash CLI 5

First Things First: Java Development Environment 5

Installing the Command-Line Interface 6

Activating HTTP(S) Proxy Support 8

Test Your IBM WebSphere sMash Installation 9

Getting Started with the Command-Line Interface (CLI) 11

Conclusion 13

Chapter 2 Choose Your Development Environment 15

Introduction 15

AppBuilder 15

Getting Started 16

Sample Applications 16

Creating a New Application 18

Editing Applications 18

Eclipse 21

Sample Applications 21

Creating a New Project 23

Command-Line Interface Environment 27

Sample Applications 28

Creating a New Application 29

Deploying Your Application 30

Conclusion 30

Chapter 3 Your First Handler and Beyond 33

Introduction 33

Application Directory Layout 33

Source Directories 34

Supporting Directories and Files 35

REST 36

REST with the Zero Resource Model (ZRM) 38

Declaring a Dependency 41

Virtual Directories 43

Synchronizing a ZRM Model 43

Event Handling in Groovy 44

Running the Application 44

Explicit Event Handling 46

Event Handling in PHP 49

Event Handling in Java 52

Creating a Client 52

Groovy Templates 52

PHP 56

Dojo 59

Conclusion 61

Chapter 4 Configuration Files Explained 63

Application Configuration 63

Global Context and zero.config 63

Custom Configuration Data 64

Variable Substitution 65

Include Files 66

Handler Configuration 66

Dependency Management with Ivy 69

Ivy Modules 69

Ivy Files 69

Resolution and Resolvers 71

Environment Configuration 74

Useful Information About Your Application 74

Runtime Configuration 75

Response Configuration 75

Command-Line Interface (CLI) Config 77

App Builder Configuration 77

Eclipse Configuration 77

JVM Configuration 78

Overriding Configuration Parameters 79

Reverse Proxy Server Configuration 80

Conclusion 80

Chapter 5 Global Context 81

Zones 81

Non-Persistent Zones 81

Persistent Zones 84

Accessing the Global Context 85

Java APIs 86

Groovy APIs 100

PHP APIs 108

Conclusion 120

Chapter 6 Response Rendering 121

Every Conversation Requires a Response 121

Serving Static Files 122

Internationalizing Static Files 122

Serving Dynamic Content 124

PHP Rendering 124

Groovy Rendering 125

Serving Default Files 126

Directory Browsing 127

Custom Rendering States 128

Using Views for Rendering 128

Managing Errors 135

Data Rendering 138

JSON Data Rendering 138

XML Rendering 141

Conclusion 142

Chapter 7 REST Programming 143

What Is REST? 143

Response Codes 145

Request Accept Headers 147

Response Headers 148

REST Handling Within WebSphere sMash 149

Creating a Groovy Resource Handler 150

Creating a PHP Resource Handler 152

Content Negotiation 154

Bonding Resources Together 157

Error Handling and Response Codes 159

Enabling SSL Communication Handlers 160

Testing and Documentation 162

Conclusion 170

Chapter 8 Database Access 171

Introduction 171

Databases Supported in WebSphere sMash 172

Configuration Settings 172

Apache Derby 173

IBM DB2 175

MySQL 175

Oracle 176

Microsoft SQL Server 177

Zero Resource Model 177

Establishing a New ZRM Application 177

Creating a Zero Resource Model 178

Making ZRM Data Available as a Service 181

Adding Data to a Zero Resource Model 182

Loading Data Using a ZRM Test Page 183

Iterative Zero Resource Model Design 184

Database Access with pureQuery 186

Working with pureQuery 186

Simple Query Methods 188

Data Manipulation Statements 191

Prepared Statements 192

Externalizing SQL Statements 194

Connection Pooling 194

Data Access Using Java 195

Data Access in PHP 195

Standard JDBC Database Access 197

Command-Line Database Management 205

Conclusion 206

Chapter 9 Security Model 207

SSL Configuration 209

Enabling Security 213

Application Secret Key 213

Authentication Types 214

Login Form 217

Knowing Your Users 219

Additional Files for Our Application 221

Testing the Secure Application 223

Directory Server Configuration 224

Directory Server User Details 226

OpenID Configuration 228

Securing Outbound Connections 230

Conclusion 233

Chapter 10 Event Processing 235

Timers 235

Application Initialization Using Timers 237

Kickers 239

Simple Kicker 240

File Kicker and Receiver 243

Events 245

Custom Events 247

Conclusion 249

Chapter 11 Framework Components 251

URIUtils 251

Java APIs 251

Groovy APIs 255

PHP APIs 256

Validators 257

Active Content Filtering 259

Assemble Flow 263

Conclusion 267

Chapter 12 Client-Side Programming with the Dojo Toolkit 269

Enter the Dojo 270

Enabling Dojo in Your Application 271

AppBuilder Page Designer 277

Put a Dojo Face on ZRM and Application Data 279

DBA--A Complete RIA Using WebSphere sMash and Dojo 282

Project Creation 283

Layout Mockup 284

Initial Page Loading 286

Application Initialization 288

Driver Details and Schema Loading 291

Table Selection and Running SQL 293

Final Product 294

Creating Custom Dojo Builds for Performance 294

Using Non-Supplied Versions of Dojo 295

Debugging and Best Practices in Dojo Development 296

Debugging and Logging with Firebug 297

Code Validation with JSLint 297

Data Validation with JSONLint 298

Dojo References 298

Conclusion 299

Chapter 13 PHP in WebSphere sMash 301

Why Develop in PHP Using sMash? 301

Adding PHP to Your Application 301

PHP Applications 302

Running PHP Applications in WebSphere sMash 303

PHP to Java Bridge 303

Accessing Java Classes 304

Access Static Java Class Members 304

Example: Using Apache Commons Logging in PHP 305

PHP to Groovy Bridge 308

PHP to Groovy Bridge Example 308

Extending PHP 311

Logger Extension Sample 313

Data Conversion Between PHP and Java in Extensions 315

PHP Arguments to Java Variables 315

Java to PHP Variable Conversion 317

SuperGlobals 317

$_SERVER 318

$_GET and $_POST 318

$HTTP_RAW_POST_DATA 319

$_FILES 319

$_COOKIE 320

$_REQUEST 320

XML Processing Using PHP and WebSphere sMash 320

WebSphere sMash PHP Extensions 323

WebSphere sMash Utilities 323

URI Utilities 326

Java Extensions 327

Groovy Extensions 328

Remote Connections 329

JSON Utilities 330

Active Content Filtering 331

Cross-Site Request Forgery 331

Login 332

Database Access 332

XML Utilities 346

Conclusion 346

Appendix A Get Started with Groovy 349

Default Imports 350

Dynamic Typing 350

GStrings and Heredocs 351

Embedded Quotes 352

Getters and Field Pointers 352

Parentheses and Method Pointers 353

Return Statements 354

Exception Handling 354

Safe Dereferencing 355

Operator Overloading 355

Boolean Evaluation 356

Closures 357

Lists 358

Maps 361

Ranges 362

Looping 363

Optional Parameters 365

Index 367

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