An Introduction to Websphere sMash for PHP Programmers

An Introduction to IBM WebSphere sMash for PHP Programmers Jonathan Lawrence & Robin Fernandes Software Developers, WebSphere Development, IBM projectzero.org

Agenda
Overview of WebSphere sMash
Simple sMash demonstration
PHP in sMash
PHP sMash demonstration
Summary and Questions

What is WebSphere sMash?
WebSphere sMash is a new Agile Web Application Platform
Exploiting Dynamic Scripting Languages
Optimized for producing...
REST-based Services
Integration Applications
Mash-ups
Rich Web Interfaces
Architected for...
Speed, Simplicity & Agility

What is WebSphere sMash?
Java TM Virtual Machine based runtime supporting PHP and Groovy.
NOT a Java EE environment
Targeted at Script developers
Not for producing Java code.
A Commercial Project
With development done in the open and limited no-cost use.
Download for free at http://projectzero.org .
A Full Stack Runtime
With a HTTP server, module system and simple IDE built in.

WebSphere sMash for the application long tail Usage Number of Applications Java Enterprise Edition For business department and mid-market customers looking for rapidly developed agile applications, short implementation cycles and ways to easily reuse existing investments. Time to value is more important than enduring value Strategic, long-lived applications Dynamic Scripting Application Server

Accelerate business and IT alignment Speed Simplicity Agility Dynamic scripting languages Templates & pre-built services No-charge, robust browser & Eclipse based tooling Simply create rich Web 2.0 interfaces Application “is” the server Clean, short-lived runtime

Speed WebSphere sMash is easy for developers to access, learn, and use
Dynamic Scripting
PHP
Groovy (Java TM Language Syntax)
Effortless creation of RESTful Services
Simple event-based execution environment
State externalized into a shared memory space (Global Context)
Repository of pre-built templates, services, libraries, and connectors

Simplicity WebSphere sMash makes it simple to “mash-up” services and feeds
Free browser-based and Eclipse-based tools provide a simple environment for constructing applications based on dynamic scripting languages.
Visual tooling makes it simple to create complex, rich, dynamic, data-centric Web 2.0 user interfaces based on Ajax.
sMash is a full stack runtime – JEE web container not required.

Agility WebSphere sMash focuses on deploying applications, not servers
Cost effective execution
Memory and disk footprint minimal.
Many apps possible per box.
Clean execution
Applications are isolated and secured from each other
Periodic re-cycling of applications reduces failures

Dynamic Scripting
WebSphere sMash is a dynamic scripting platform
Application Logic is created in one of two scripting languages
PHP (for the 3 Million existing PHP programmers)
Groovy (for people that prefer Java TM )
Java is positioned as the “system” language
Mostly used to implement system extensions and application libraries
Entire applications can be written in Java, if desired
Requires more configuration

Application-centric Runtime
WebSphere sMash is an application-centric runtime
You create an application and run it
You do not package an application and deploy it to a multi-application server
Each application runs in its own process (JVM)
Runtime is designed to be short lived
WebSphere sMash is a full stack runtime
Everything needed to run the application is provided
Including the HTTP stack
No external proxy or web server is required
Except for clustering and multi-app routing

Modular Architecture
WebSphere sMash applications are based on a very small core
Additional features provided in downloadable modules
Applications declare dependencies using Apache Ivy
A package management system manages your dependencies, including facilities to:
share dependencies on a machine
load missing dependencies from the network on demand
manage updates to dependencies

Available Modules
There are approximately 65 modules available currently
Modules provide function in many categories
Data Formats (JSON, ATOM, RSS, XML)
Data Access
Resource Modeling
Security / Content Filtering
Activity Flows
Services
Amazon ECS, Flickr, Weather, etc
Utilities (such as HTML parsing)
Management Tools
Development Tooling
Reliable Transport Engine for Messaging Interactions

Agenda
PHP in sMash

WebSphere sMash PHP Support
PHP runtime built in Java TM .
Compile PHP into Java bytecodes and run on a JVM.
Powerful blending of PHP and Java code.
Java and PHP code run in the same process
No need for Inter-process communication.
Efficient calls between PHP, Java and Groovy
Pass data between PHP, Java and Groovy without copying
Avoids serialising and passing data between processes.
Import Java classes as PHP Classes
Easy access to the many Java libraries from PHP code.

PHP in WebSphere sMash Java Virtual Machine
Runs PHP 5 scripts
Requires Java 5 SE or later.
Extensibility via XAPI
XAPI-C for C extensions from php.net
XAPI-J for Java extensions, native libraries invoked over JNI and Project Zero interface
Extension language choice opaque to PHP script
Java TM Bridge
Debug using via DBGp protocol using Eclipse with PDT
P8 Runtime Interpreter/Compiler PHP runtime Java Extensions C Extensions XAPI-J XAPI-C PDT2 Java- Bridge JAR JAR JAR JAR Groovy runtime WebSphere sMash HTTP server Zero Programming Model DBGp Debug

Benefits of PHP in sMash.
Develop quickly using the best tools for the job.
PHP code such as smarty, drupal, phpBB,
Java code such as Apache Lucene, POI and Eclipse BIRT
Start simple using sMash tooling such as ZRM
Customise and extend using PHP scripts and snippets
Build on a solid base.
PHP built on the Java VM at the heart of IBM’s enterprise software stack.
Vast investment in JIT, Garbage Collector, RAS and tools.
Enable agile teams to use Java and PHP skills.
Allow teams to use their full range of skills.
Integrate Java and PHP code seamlessly using the Java Bridge

PHP – Java Bridge – Basic use <?php java_import( "java.util.Date" ); $date = new Date( 81 , 9 , 12 ); echo $date . PHP_EOL; // prints: Sun Oct 11 00:00:00 BST 1981 java_import( "java.util.HashMap" ); $map = new HashMap(); $map ->put( "stuff" , array ( 1 , 2 , 3 , 4 , 5 )); var_dump( $map ->get( "stuff" )); // prints: array(5) { ... Access Java methods and fields from PHP <?php java_import( "java.lang.System" ); echo System::currentTimeMillis(); try { System::getProperty( FALSE ); } catch (JavaException $exception ) { echo $exception ->getMessage(); } Static methods and fields are accessible too Types are automatically converted at boundary of PHP runtime Java exceptions can be caught and handled in PHP

Java Bridge – Extending Java in PHP <?php java_import( "java.io.File" ); class SubFile extends File { function SuperFile( $path ) { parent ::__construct( $path ); } function isThisCool() { return TRUE ; // Way cool } } $file = new Sub File( "/" ); var_dump( $file ->isDirectory()); var_dump( $file ->isThisCool()); PHP classes can extend Java classes

PHP- Java Bridge – Iterators and Overloads Signatures provide explicit control for overloaded methods <?php java_import( "java.util.ArrayList" ); $list = new ArrayList(); $list ->add( "Hello World!" ); $list ->add( FALSE ); $list ->add( 1234567890 ); foreach ( $list as $key => $value ) { echo " $key $value " ; } Java iteration is bridged into PHP <?php java_import( "java.lang.String" ); $signature = new JavaSignature(JAVA_INT); var_dump(String::valueOf( $signature , 1234567890 ));

Java Bridge – More features… <?php java_import( "java.math.BigDecimal" , NULL, FALSE , "My_BigDecimal" ); $value = new My_BigDecimal( "1.18E+10" ); echo $value ; Import a Java class under a different name to avoid clashes <?php java_import( "java.lang.Comparable" ); echo (ReflectionClass::export( "Comparable" )); PHP reflection works on Java classes <?php java_import( "java.io.File" ); $file = new File( "/home/robinf" ); var_dump( $file ->Parent); //equivalent to: var_dump( $file ->getParent()); Java bean support provides field access for get/set method calls

Agenda
PHP in sMash

Some PHP Applications that run on sMash Forums CRM wiki Desktop Virtualisation Ajax Debugging Content Management Blogging FirePHP

Features we didn’t cover
Client Programming with the Dojo Framework
Assemble Tooling
Data APIs
Security
Eclipse-based tooling
REST to SOAP adapter
Reliable Messaging
Error Handling
Logging, Tracing, Debugging
…

Project Zero – projectzero.org
Download sMash for free
View “Getting Started” guides
Watch videos of sMash in action
Access our source, bug tracker, developer discussions…
Chat with the community on the forum
Visit http://projectzero.org Project Zero is the development and incubation community around WebSphere sMash  Come to our stand for more demos!

Legal Notices
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Other company, product, or service names may be trademarks or service marks of others.

An Introduction to Websphere sMash for PHP Programmers

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