... you had in an. Open Source JEE Application Server? ... Love AS7... ⢠Blazing fast startup time .... development, w
The Next Generation Prabhat Jha
Principal Engineer
What do you wish you had in an Open Source JEE Application Server?
Faster Startup Time?
Lighter Memory Footprint?
Easier Administration?
7 Reasons To Love AS7...
7 Reasons To Love AS7... • Blazing fast startup time
7 Reasons To Love AS7... • Blazing fast startup time • Lightweight
7 Reasons To Love AS7... • Blazing fast startup time • Lightweight • Modular core
7 Reasons To Love AS7... • • • •
Blazing fast startup time Lightweight Modular core Hot, parallel deployment
7 Reasons To Love AS7... • • • • •
Blazing fast startup time Lightweight Modular core Hot, parallel deployment Elegant administration
7 Reasons To Love AS7... • • • • • •
Blazing fast startup time Lightweight Modular core Hot, parallel deployment Elegant administration Domain management
7 Reasons To Love AS7... • • • • • • •
Blazing fast startup time Lightweight Modular core Hot, parallel deployment Elegant administration Domain management First class components
Bonus for Austin JUG • Testable by design :-)
Details
Blazing Fast Startup Time
Lightweight Footprint
New Possibilities • Execute an entire Java EE container in a unit test ! • Use an appserver VM per application • Run in constrained environments (light cloud, plug computers, mobile devices) • Develop faster than you ever have before. • Run multiple staging servers on your laptop.
JBoss AS7 Architecture
Modular Core
Isolated Classes vs. One Size Fits All!
JBoss Modules • Provides extremely fast modular class loading – O(1) Dependency resolution – Concurrent CL (lockless in most VMs)
• “Pure” modular class loading – Modules only see what they import (includes JDK classes!)
• External module definitions – Don’t have to break open the JAR
• Dynamic – Modules can be redefined
• Extensible – JBoss OSGi implemented on modules
OLD: Hierarchical Classloading
NEW: Modular Classloading
User Deployments • User deployments are modules too • Sets up dependencies on some modules automatically (e.g. JPA, Hibernate, WebServices) • The user can also set up their own dependencies on app server modules
Hot, Parallel Deployment
Services Load Concurrently!
Services • In AS7 almost everything is a service • Services are objects that can be started and stopped • Services can have dependencies on other services • When all a services dependencies are satisfied it will attempt to start • If a dependency going to be stopped, then MSC will stop all dependent services first • Services can inject dependent services
Elegant Administration
First Class Components • Infinispan • CDI/Weld • HornetQ • Hibernate
• JSF • OSGI • PicketBox
EAP 6 – Test Drive Now!
Key Features • • • • • • • •
Fast and Lightweight Supports domain (multi-node) management Multiple consistent management interfaces CLI, Java API, HTTP API, Console Unified, user-focused configuration Modular Only APIs, no AS implementation exposure True isolation
Two Operational Models Standalone • Traditional JBoss single JVM server • Management facilities IN-VM
Domain • Multi-JVM, multi-server model • Management coordinated by Domain Controller Process • Multiple server instances (JVMs) per Host • Full lifecycle managed by Process Controller
Standalone Mode • Standalone is a single AS process for use in development, where the additional management functionality is not required • Provides a similar development experience to previous versions of the AS, allowing for a deployment to be dropped in the deployments folder and automatically deployed • Can still be managed by the same tools and API's as domain mode
Standalone Mode Demo
Domain Mode • Easy management of multiple AS instances • Managed from a single point, all have access to the same domain configuration • Allows for management and configuration updates to be pushed out to all servers • Domain Mode has three separate processes: – Process Controller – Host Controller – Server Instance
Domain Mode Architecture
Domain Mode .. • Multi-server management as a core part of AS 7 /EAP 6 itself – Start/quiesce/stop servers – Rolling deployment to a set of servers – Roll a config change out of a set of servers – Roll back changes
Domain Model Concepts • Subsystem : a particular set of capabilities that extend the app server core – WebServer, Transaction Manager, EJB3
• Profile: the set of subsystem a server or a group of server runs – Change your profile to expand or narrow the capabilities of your servers
Management • ONE configuration file – standalone.xml / domain.xml
• Management API that allows for persistent changes to the configuration • Management API can manage all servers in the domain • Management console to provide user friendly management in a web browser • Command line tool for use in scripts
Management via Configuration
Management via API
Management via CLI • Scriptable command line management tool • Uses the management API internally • Allows access to high level user friendly commands: create-jms-queue –-name testQueue
• Also allows direct access to the domain model, giving access to the full functionality of the management API
Testing with Arquillian • AS7 supports easy testing with ArquillIan • Arquillian is used both in the internal test suite and by end users to test their applications • Combined with the fast startup speed of AS7 testing in the container is just as easy as running normal JUnit tests.
A simple API for constructing archives as Java objects: WebArchive archive = ShrinkWrap.create(WebArchive.class,”archive.war”) .addClasses(MyClass.class,MyOtherClass.class, WecomeServlet.class) .addAsResource("mystuff.properties"); myServer.deploy(archive); // And done.
High Octane Development | Automated Testing for Java EE6 | Andrew Lee Rubinger
Java EE 6 Intro • Extensibility • Profiles – Subsets of “full” EE platform – Web Profile • Pruning – CMP, JAX-RPC, JAXR, JSR-88 are “pruned” in EE6 • New Technology & Improvements to Existing – Dependency Injection, CDI, Servlet 3, JPA 2, JSF 2, JAX-RS, Bean Validation
Servlet 3 • Ease of Development – Annotations – Zero configuration in XML for the most part. • Web framework pluggability – Programmatic access to web.xml – Dynamic changes to configuration of webapp • Async and Commet support – Non blocking input and output – Delay request handing – Delay response close •
Servlet 3 @WebServlet @WebServlet("/report") public class ReportServlet extends HttpServlet
@WebFilter @WebFilter(filterName = "TimeOfDayFilter", urlPatterns = {"/*"}, initParams = { @WebInitParam(name = "report", value = "dev")}) public class TimeOfDayFilter implements Filter { @HttpConstraint
@HttpMethodConstraint @MultipartConfig
@ServletSecurity
@WebInitParam
@WebListener
JSF 2 • Ajax • Easy component creation • Bookmarkable URLs • Templating (think Facelets)
JPA 2 • O/R mapping enhancements – Embedded objects, collections, ordered lists • Query and Entity Manager Enhancements – First result, max results, typed results • Criteria API • 2nd Level Caching • Pessimistic Locking
JPA 2 ...
JAX-RS • Web services through REST instead of SOAP • REST counterpart of JAX-WS • Annotations from ground up • Integration with CDI and EJB @Path("users/{username: [a-zA-Z][a-zA-Z_0-9]}") public class HelloWorldResource { @GET @Produces("text/xml") public String getMessage(@PathParam("username") String userName) { return "Hi” + userName + “!! Howz JBoss AS 7 ??"; }
EJB 3.1 ( Lite) •
Removal of the requirement for a separate local business interface.
•
Support for direct use of EJBs in the servlet container, including simplified packaging options.
•
Singleton beans with different locking options.
•
Support for asynchronous session bean invocation.
•
Application-level callback notifications, including for container initialization and shutdown.
•
EJB Timer Service enhancements to support cron-like scheduling, deploymenttime timer creation, and stateful session bean timed objects.
•
Lite: – Local Session Bean, Annotation, Security, Interceptors. – MDB, Timer, Web Services End Point, RMI-IIOP
EJB 3.1 ( Lite) ... @javax.ejb.Stateless public class CarHotelAndAirLineBookingServiceBean { @javax.ejb.Asynchronous public Future bookCarHotelAndAirLine( Car rental, Hotel hotel, AirLine airLine) { ...} }//end async service //-------------------------In your JSF bean, you can then do-----------------------------public String makeRequest() { confirmation = bookingService.bookCarHotelAndAirLine(...); return "showConfirmationPending"; } public Future getConfirmation(){ /* ... */ }
EJB 3.1 ( Lite) •
Removal of the requirement for a separate local business interface.
•
Support for direct use of EJBs in the servlet container, including simplified packaging options.
•
Singleton beans with different locking options.
•
Support for asynchronous session bean invocation.
•
Application-level callback notifications, including for container initialization and shutdown.
•
EJB Timer Service enhancements to support cron-like scheduling, deploymenttime timer creation, and stateful session bean timed objects.
•
Lite: – Local Session Bean, Annotation, Security, Interceptors. – MDB, Timer, Web Services End Point, RMI-IIOP
Bean Validation • Specify constraints only once across application layers @NotNull @Size(min = 1, max = 25) @Pattern(regexp = "[A-Za-z ]*", message = "must contain only letters and spaces") private String name; @NotNull @Size(min = 10, max = 12) @Digits(fraction = 0, integer = 12) private String phoneNumber;
CDI • Makes Java EE development more productive. !! • Provides a declarative way to manage the scope, state and life-cycle of components bound to contexts. • Provides a standardised, annotation-driven, type-safe dependency injection framework for the platform . • Provides a Service Provider Interface (SPI) for developing portable extensions for the Java EE platform • What is CDI aka JSR-299's relationship with respect to JSR330, Dependency Injection?
Community or Enterprise?
Community or Enterprise?
Demo • • • • •
Administration Console Domain Model Quickstart with maven archetype Deployments mvn archetype:generate \ mvn archetype:generate \ OpenShift -DarchetypeArtifactId=jboss-javaee6-webapp \ -DarchetypeArtifactId=jboss-javaee6-webapp \
-DarchetypeGroupId=org.jboss.spec.archetypes \ -DarchetypeGroupId=org.jboss.spec.archetypes \ -DarchetypeVersion=7.0.0.CR1 \ -DarchetypeVersion=7.0.0.CR1 \ -DarchetypeRepository=repository.jboss.org/ -DarchetypeRepository=repository.jboss.org/ nexus/content/groups/public nexus/content/groups/public
OpenShift – EE6 In the Cloud!
