This document summarizes a talk on the WildFly 8 application server. It discusses the history of Java EE and how WildFly was created to differentiate the open source and licensed versions of JBoss. Key features of WildFly 8 covered include support for Java EE 7, a new Undertow web server, simplified clustering, and role-based access control. Application programming interfaces new to Java EE 7 like the batch API, web sockets API, and concurrency API are demonstrated.

1. ROME 11-12 april 2014ROME 11-12 april 2014
Talk title: WildFly 8 Introduction
f.marchioni@mastertheboss.com
Francesco Marchioni

2. ROME 11-12 april 2014 - Francesco Marchioni
Francesco Marchioni
 Owner of mastertheboss.com
 Book author @ PacktPublishing @ ItBuzzpress

3. ROME 11-12 april 2014 - Francesco Marchioni
A bit of history
J2EE 1.4
Certification
JEE 1.5
Certification
JEE 1.6
Certification
JEE 1.7
Certification

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Why «WildFly» ??
 Reduce overlapping caused by the
«JBoss» brand
 Differentiate the licensed version from
the Community version

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WildFly new features
 Java EE 7 support
 New Web server architecture (Undertow)
 System Administrator friendly (only 1 port used
for management)
 Role Base Access Control and auditing
 Patch management
 Simplified clustering

6. ROME 11-12 april 2014
Java EE 7 Highlights
 JSR-352 Batch API for Java platform
 JSR-236 Concurrency API for Java EE
applications
 JSR-353 Java API for JSON Processing (JSON-P)
 JSR-356 Web Sockets API
 JSR-342 JMS 2.0 API
 JSR-330 JAX-RS 2.0

7. ROME 11-12 april 2014
WildFly Java EE 7 API
CDI
Extensions
JSF 2.2
JSP 2.3
EL 3.0
JAX-WS 2.2
JAX-RS 2.0 JSON 1.0
WebSocket
1.0
Servlet 3.1
CDI 1.1
Interceptors 1.2
JTA 1.2
Common
Annotations 1.1
Concurrency 1.0
Managed Beans 1.0 EJB 3.2
JPA 2.1 JMS 2.0 JCA 1.7 Batch 1.0

8. ROME 11-12 april 2014
Batch API
<job id="MyJob">
<step id="BatchProcessor" next="cleanup">
<chunk checkpoint-policy="item" item-count="10">
<reader ref="MyItemReader"></reader>
<processor ref="MyItemProcessor"></processor>
<writer ref="MyItemWriter"></writer>
</chunk>
</step>
<step id="cleanup">
<batchlet ref="CleanUp"></batchlet>
</step>
</job>
Chunk
Step
Batchlet

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Web sockets API
@ServerEndpoint("/echo")
public class ExampleWebSocket {
@OnMessage
public String onMessage(String message) {
return “Hello “+message;
}
}

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Web Sockets JS Client
<script type="text/javascript">
function WebSocketTest()
{
// Let us open a web socket
var ws = new WebSocket("ws://localhost:8080/WebApp/echo");
ws.onopen = function()
{
// Web Socket is connected, send data using send()
ws.send("Message to send");
alert("Message is sent...");
};
ws.onmessage = function (evt)
{
var received_msg = evt.data;
alert("Message is received...");
};
ws.onclose = function()
{
// websocket is closed.
alert("Connection is closed...");
};
}
}
</script>

11. ROME 11-12 april 2014
Concurrency API
@Resource(name = "DefaultManagedExecutorService")
ManagedExecutorService executor;
executor.execute(new MySimpleTask1());
public class MySimpleTask1 implements Runnable {
public void run() {
System.out.println("Thread started.");
}
}

12. ROME 11-12 april 2014
JMS 2.0 API
@Stateless
public class MessageSender {
@Inject
JMSContext context;
@Resource(mappedName=“java:jboss/jms/queue/exampleQueue”)
private Queue queue;
public void sendMessage(String message) {
context.createProducer().send(queue, message);
}
}
14:28

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Undertow Web server
• Lightweight Web Server : core JAR size < 1 MB - Runtime < 4 MB
• Supports HTTP Upgrade to allow multiple protocols multiplexing over HTTP
• Supports Servlet 3.1
• Runnable as Embeddable or Standalone
• Modular architecture built on Handlers which can be chained

14. ROME 11-12 april 2014
Undertow Web server
public class HelloWorldServer {
public static void main(final String[] args) {
Undertow server = Undertow.builder()
.addHttpListener(8080, "localhost")
.setHandler(new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws
Exception {
exchange.getResponseHeaders().put(Headers.CONTENT_TYPE,
"text/plain");
exchange.getResponseSender().send("Hello World");
} }).build();
server.start();
}
}

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Server Port Reduction
Port 9990 Administration
Port 8080 HTTP + HTTP upgrade
Port 9999 Native management
Port 4447 Remoting
Removed

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Patching
 Patching allows updating libraries and
configuration files
 Patches distributed as a zip file
containing libraries and metadata
 Installed using the Command Line
Interface
 Patches can be rolled back and
invalidated by other patches

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Patching
[standalone@localhost:9990 /] patch apply
/path/to-patch/patch.zip
[standalone@localhost:9990 /] shutdown --
restart=true

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Role Base Access Control
In JBoss AS 7 every user is a SuperUser
Lack of granularity

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Role Base Access Control
Administrative Users can be mapped to Roles
Roles = set of Permissions
Permissions:
 Actions (access, read/write config and runtime)
Set of Constraints:
 Sensitive resource
 Sensitive data
 Application Resource
 Auditing

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Role Base Access Control
Roles:
 Monitor: read non-sensitive resources
 Operator: Monitor + start/stop servers and resources
 Deployer: Operator + Deploy application and resources
 Maintainer: Deployer + Configure applications and resources
 Administrator: Mantainer + System Configuration
 Auditor: Mantainer + Audit logging
 SuperUser: Everything

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Role Base Access Control
Scoped Roles:
A role that is Server Group scoped
restricts the permissions of that role to
one or more Domain Server Groups.

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Role Base Access Control
Host Scoped Roles:
A role that is bound to one Domain
Host
Restricts the permissions of that role
only to that Host.

23. ROME 11-12 april 2014
Clustering Enhancements
New Stateful SB Clustering implementation
@Clustered annotation deprecated
EJB
Cache<K, V>
cache;
EJB.jar
Cache<K, V>
cache;
JBoss AS 7 WildFly 8

24. ROME 11-12 april 2014 - Francesco Marchioni
WildFly books
http://www.itbuzzpress.com

25. ROME 11-12 april 2014 - Speaker’s name
Questions ??