How do I set up a wicket quickstart to use seam-wicket CDI?
What do I need to do to make CDI work on my wicket quickstart project? When I try to launch the Jetty server, I get an exception:
org.jboss.seam.solder.beanManager.BeanManagerUnavailableException: Failed to locate BeanManager using any of these providers: org.jboss.seam.solder.beanManager.DefaultJndiBeanManagerProvider(11), org.jboss.seam.solder.beanManager.ServletContainerJndiBeanManagerProvider(10)
at org.jboss.seam.solder.beanManager.BeanManagerLocator.getBeanManager(BeanManagerLocator.java:91)
at org.jboss.seam.wicket.SeamApplication.internalInit(SeamApplication.java:54)
at org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:723)
...
I am authoring a wicket project. I don't know the first thing about Seam, Weld, or CDI; I want to learn it by incorporating it into a small project. I am following this reference documentation:
http://docs.jboss.org/seam/3/wicket/latest/reference/en-US/html_single/
Right now, I am swimming in a sea of alien documentation trying to find the answer. Help!
Edit:
The Jetty server in the wicket quickstart is created programmatically. Based on the documentation given below, I created:
webapp/WEB-INF/jetty-env.xml
:
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN"
"http://jetty.mortbay.org/configure.dtd">
<Configure id="webAppCtx" class="org.mortbay.jetty.webapp.WebAppContext">
<New id="BeanManager" class="org.mortbay.jetty.plus.naming.Resource">
<Arg><Ref id="webAppCtx"/></Arg>
<Arg>BeanManager</Arg>
<Arg>
<New class="javax.naming.Reference">
<Arg>javax.enterprise.inject.spi.BeanManager</Arg>
<Arg>org.jboss.weld.resources.ManagerObjectFactory</Arg>
<Arg/>
</New>
</Arg>
</New>
</Configure>
In web.xml
, I have added the following snippet:
<resource-env-ref>
<resource-env-ref-name>BeanManager</resource-env-ref-name>
<resource开发者_开发技巧-env-ref-type>
javax.enterprise.inject.spi.BeanManager
</resource-env-ref-type>
</resource-env-ref>
<listener>
<listener-class>org.jboss.seam.solder.resourceLoader.servlet.ResourceListener</listener-class>
</listener>
The following Java code is responsible for setting up the Jetty server in the quickstart environment, when Start is run:
Server server = new Server();
SocketConnector connector = new SocketConnector();
// Set some timeout options to make debugging easier.
connector.setMaxIdleTime(1000 * 60 * 60);
connector.setSoLingerTime(-1);
connector.setPort(8080);
server.setConnectors(new Connector[] { connector });
WebAppContext bb = new WebAppContext();
bb.setServer(server);
bb.setContextPath("/");
bb.setWar("src/main/webapp");
// FIXME: This doesn't seem to do anything? bb.addEventListener(new ResourceListener());
server.addHandler(bb);
/* I don't know what this commented code does, but it doesn't fix the problem when uncommented. */
// START JMX SERVER
// MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();
// MBeanContainer mBeanContainer = new MBeanContainer(mBeanServer);
// server.getContainer().addEventListener(mBeanContainer);
// mBeanContainer.start();
I am using jetty version 6.1.25, according to my Maven Dependencies.
The 42Lines folks have published a Wicket-CDI integration library that includes a working example project.
Several of these guys are actually Wicket committers; they write good code, and they know what they're doing.
In a servlet container you need to bootstrap Weld CDI yourself to make it available to Seam. The documentation states this under installation:
http://docs.jboss.org/seam/3/wicket/latest/reference/en-US/html_single/#wicket.installation
With a link to the relative Weld bootstrapping documentation for either Jetty 6 or 7:
http://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#d0e5286
It should work fine after configuring Jetty to bootstrap Weld. However please take not of the limitations of using Weld within a servlet container:
http://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#d0e5221
Also ensure that you have an empty (or configured) beans.xml in your WEB-INF/ directory.
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