Actually... seems like componentDescriptor.addComponentDependency() doesn't
add the dependency either :-( Just ends up being null when retrieving it.
Is there something that needs to be done before injection happens on these
objects?
On Fri, Dec 4, 2009 at 12:34 AM, Lewis Denizen <orang...@gmail.com> wrote:
> Thanks Vincent! That's exactly what I needed :-) Just one more question,
> though.. Is it possible to inject dependencies by using the attributes
> defined within the class then? Right now, using the
> DefaultComponentDescriptor, I can inject dependencies using:
>
> componentDescriptor.addComponentDependency(QueryManager.class, "default")
>
> but would be nice if it could auto-inject into something like:
>
>
> class UserXWQLDAO implements UserDAO
> {
> @Requirement
> def QueryManager queryManager
> //...
> }
>
> Thanks again for a great wiki!
>
>
> On Wed, Dec 2, 2009 at 3:56 AM, Vincent Massol <vinc...@massol.net> wrote:
>
>> Hi Lewis,
>>
>> On Dec 1, 2009, at 7:12 PM, Lewis Denizen wrote:
>>
>> > Hi xwiki-users,
>> >
>> > I'm trying to bootstrap a component from the wiki itself (via
>> > Groovy). I
>> > have an interface defined as follows:
>> >
>> > // This is the text inside the User.UserDAO document
>> > {{groovy}}
>> > interface UserDAO
>> > {
>> > def ROLE = UserDAO.class.name
>> >
>> > /**
>> > * Returns the current user name.
>> > */
>> > def getUserName()
>> >
>> > /**
>> > * Returns the current user's password
>> > */
>> > def getPassword()
>> > }
>> > {{/groovy}}
>> >
>> > I also have a dummy implementation defined as follows:
>> >
>> > // This is the text inside the User.UserXWQLDAO document
>> > {{include document="User.UserDAO" /}}
>> > {{groovy}}
>> > import org.xwiki.component.annotation.Component
>> > import org.xwiki.component.annotation.Requirement
>> > import org.xwiki.component.descriptor.DefaultComponentDescriptor
>> > import org.xwiki.query.Query
>> > import org.xwiki.query.QueryManager
>> >
>> > import com.xpn.xwiki.web.Utils
>> >
>> > @Component(roles = [ UserDAO.class ])
>> > class UserXWQLDAO implements UserDAO
>> > {
>> > @Requirement
>> > def QueryManager queryManager
>> >
>> > /**
>> > * Returns the current user name.
>> > */
>> > def getUserName() {
>> > return "bleh"
>> > }
>> >
>> > /**
>> > * Returns the current user's password
>> > */
>> > def getPassword() {
>> > return "bleh"
>> > }
>> > }
>> >
>> > if(!Utils.componentManager.hasComponent(UserDAO.class))
>> > {
>> > def componentDescriptor = new DefaultComponentDescriptor()
>> > componentDescriptor.setImplementation(UserDAO.class)
>> >
>> > Utils.componentManager.registerComponent(componentDescriptor, new
>> > UserXWQLDAO())
>> > }
>> > {{/groovy}}
>> >
>> > The first problem I ran into was that Groovy 1.6.5 ran into
>> > IncompatibleClassChangeErrors (
>> http://jira.codehaus.org/browse/GROOVY-3830
>> > ).
>> > Upgrading to 1.6.6 fixed this issue. But, then I ran into a NPE:
>> >
>> > *exception*
>> >
>> > javax.servlet.ServletException: Failed to initialize Request/
>> > Response or Session
>> >
>> > com
>> > .xpn
>> > .xwiki.web.XWikiAction.initializeContainerComponent(XWikiAction.java:
>> > 391)
>> >
>> > com
>> > .xpn.xwiki.web.XWikiAction.initializeXWikiContext(XWikiAction.java:
>> > 372)
>> > com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:112)
>> >
>> > org
>> > .apache
>> > .struts
>> > .action.RequestProcessor.processActionPerform(RequestProcessor.java:
>> > 431)
>> >
>> > org
>> > .apache.struts.action.RequestProcessor.process(RequestProcessor.java:
>> > 236)
>> > org.apache.struts.action.ActionServlet.process(ActionServlet.java:
>> > 1196)
>> >
>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
>> > javax.servlet.http.HttpServlet.service(Unknown Source)
>> > javax.servlet.http.HttpServlet.service(Unknown Source)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .wysiwyg
>> > .server.filter.ConversionFilter.doFilter(ConversionFilter.java:152)
>> > com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:119)
>> >
>> > com
>> > .xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
>> > 68)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .web
>> > .SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:
>> > 295)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .web
>> > .SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:
>> > 112)
>> >
>> > *root cause*
>> >
>> > org.xwiki.container.servlet.ServletContainerException: Failed to
>> > initialize request
>> >
>> > org
>> > .xwiki
>> > .container
>> > .servlet
>> > .internal
>> > .DefaultServletContainerInitializer
>> > .initializeRequest(DefaultServletContainerInitializer.java:98)
>> >
>> > com
>> > .xpn
>> > .xwiki.web.XWikiAction.initializeContainerComponent(XWikiAction.java:
>> > 387)
>> >
>> > com
>> > .xpn.xwiki.web.XWikiAction.initializeXWikiContext(XWikiAction.java:
>> > 372)
>> > com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:112)
>> >
>> > org
>> > .apache
>> > .struts
>> > .action.RequestProcessor.processActionPerform(RequestProcessor.java:
>> > 431)
>> >
>> > org
>> > .apache.struts.action.RequestProcessor.process(RequestProcessor.java:
>> > 236)
>> > org.apache.struts.action.ActionServlet.process(ActionServlet.java:
>> > 1196)
>> >
>> org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
>> > javax.servlet.http.HttpServlet.service(Unknown Source)
>> > javax.servlet.http.HttpServlet.service(Unknown Source)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .wysiwyg
>> > .server.filter.ConversionFilter.doFilter(ConversionFilter.java:152)
>> > com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:119)
>> >
>> > com
>> > .xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:
>> > 68)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .web
>> > .SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:
>> > 295)
>> >
>> > com
>> > .xpn
>> > .xwiki
>> > .web
>> > .SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:
>> > 112)
>> >
>> > *root cause*
>> >
>> > java.lang.NullPointerException
>> >
>> >
>> > Haven't investigated any further than this, but has anyone
>> > successfully
>> > created components completely within a wiki document? That would
>> > just be so
>> > cool! Great work!
>>
>> Yes, I've done that several times.
>>
>> Here's an example:
>>
>> http://svn.xwiki.org/svnroot/xwiki/platform/xwiki-applications/trunk/ircbot/src/main/resources/IRC/JiraBotlet.xml
>> (search for registerComponent).
>>
>> Hope it helps,
>> -Vincent
>> _______________________________________________
>> users mailing list
>> users@xwiki.org
>> http://lists.xwiki.org/mailman/listinfo/users
>>
>
>
_______________________________________________
users mailing list
users@xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
