Group items tagged

Some of the useful patterns

%h - Remote host name (or IP address if resolveHosts is false)

%a - Remote IP address

%u - Remote user that was authenticated (if any), else '-'

%r - First line of the request (method and request URI)

%s - HTTP status code of the response

%b - Bytes sent, excluding HTTP headers, or '-' if zero

%S - User session ID

%t - Date and time, in Common Log Format

%m - Request method (GET, POST, etc.)

org.granite.gravity.tomcat.GravityTomcatServlet

/gravityamf/*

6.3.1. Supported Application Servers

GraniteDS provides a generic servlet implementation that can work in any compliant servlet container

blocking IO and thus will provide relatively limited scalability

GraniteDS thus provides implementations of non blocking messaging for the most popular application servers.

asynchronous non blocking servlets

JBoss 5+org.granite.gravity.jbossweb.GravityJBossWebServletOnly with APR/NIO enabled (APR highly recommended)

GlassFish 3.xorg.granite.gravity.async.GravityAsyncServletUsing Servlet 3.0

Tomcat 7.x / Jetty 8.xorg.granite.gravity.async.GravityAsyncServletUsing Servlet 3.0

TomEE+

OpenEJB

Java API for XML Web Services (JAX-WS) Java API for RESTful Web Services (JAX-RS) Java EE Connector Architecture Java Messaging Service (JMS)

Java Servlets Java ServerPages (JSP) Java ServerFaces (JSF) Java Transaction API (JTA)

Pros and Cons of JEE and Spring

Advantages of JEE

set of standard specifications, thus it is vendor-independent

testing is possible!

Lightweight application servers and frameworks such as Arquillian arrived

The discussion whether or not to use Spring vs. Java EE for new enterprise Java applications is a no-brainer

Why migrate?

since then fallen a prey to the hungry minds of Venture Capitalists and finally into the hands of a virtualization company called VMware

While the different companies and individuals behind the Spring framework have been doing some work in the JCP their voting behavior on important JSRs is peculiar to say the least

outdated ORM solution like JDBC templates

some developers completely stopped looking at new developments in the Java EE space and might have lost track of the current state of technology

size of the deployment archive

fairly standard Java EE 6 application will take up about 100 kilobytes

comparable Spring application weighs in at a whopping 30 Megabytes!

Lightweight

Firing up the latest JBoss AS 7 Application Server from scratch and deploying a full blown Java EE 6 application into the server takes somewhere between two and five seconds on a standard machine. This is in the same league as a Tomcat / Spring combo

Dependency injection

Java EE 6, the Context and Dependency Injection (CDI) specification was introduced to the Java platform, which has a very powerful contextual DI model adding extensibility of injectable enterprise services

Aspect Oriented Programming

“AOP Light” and this is exactly what Java EE Interceptors do

common pitfall when taking AOP too far is that your code might end up all asymmetric and unreadable. This is due to the fact that the aspect and its implementation are not in the same place. Determining what a piece of code will do at runtime at a glance will be really hard

Testing

With Arquillian we can get rid of mocking frameworks and test Java EE components in their natural environment

Tooling

capabilities comparison matrix below to map Spring’s technology to that of Java EE

Capability Spring JavaEE Dependency Injection Spring Container CDI Transactions AOP / annotations EJB Web framework Spring Web MVC JSF AOP AspectJ (limited to Spring beans) Interceptors Messaging JMS JMS / CDI Data Access JDBC templates / other ORM / JPA JPA RESTful Web Services Spring Web MVC (3.0) JAX-RS Integration testing Spring Test framework Arquillian *