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Subject: RE: Single webapp multiple contexts
Date: Tue, 9 Nov 2010 17:10:40 -0000
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Thread-Topic: Single webapp multiple contexts
Thread-Index: AcuAKkfFt+A78rdzS3Cq/JZyT6C5igAAkzFAAAECRAA=
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From: "Rob Gregory" <Rob.Gregory@ibsolutions.com>
To: "Tomcat Users List" <users@tomcat.apache.org>

The following entries are within the Changelog so it looks like what I
am trying to do is now invalid? Can anyone suggest an alternative way to
achieve the same result of a single code base with multiple contexts?

Change Logs:-

Make context deployment error message for fixDocBase() more meaningful.
(markt)

38570: When checking docBase against appBase, make sure we check for an
exact match against the appBase. (markt) =20

39013: When testing for invalid docBase, test for an exact match with
the appBase dir. (markt) =20

42678: Only ignore docBase if it really is a subdir of appBase. Patch
provided by juergen. (markt)


> -----Original Message-----
> From: Rob Gregory [mailto:Rob.Gregory@ibsolutions.com]
> Sent: 09 November 2010 16:44
> To: Tomcat Users List
> Subject: RE: Single webapp multiple contexts
>=20
> Just to expand on this a little. I have previously had something
working
> but that was on Tomcat 5.5.9, The same trick no longer seems to work
> under 6.0.29.
>=20
> I basically created a context like
>=20
> <Context swallowOutput=3D"false" reloadable=3D"false" =
useHttpOnly=3D"true"
> path=3D"/B"
> 	docBase=3D"${catalina.home}/webapps/myapp" />
>=20
> which used an already deployed copy of our webapp. This did work under
> 5.5.9 but fails with the following error under 6.0.29. Has this
> functionality changed and if so is this sort of trick not a good idea?
>=20
> INFO: Deploying configuration descriptor A.xml
> 09-Nov-2010 16:37:21 org.apache.catalina.startup.HostConfig
> deployDescriptor
> WARNING: A docBase C:\intweb\0600\webapps\myapp inside the host
appBase
> has be
> en specified, and will be ignored
> 09-Nov-2010 16:37:21 org.apache.catalina.core.StandardContext
> resourcesStart
> SEVERE: Error starting static Resources
> java.lang.IllegalArgumentException: Document base
> C:\intweb\0600\webapps\A does
> not exist or is not a readable directory
>         at
> org.apache.naming.resources.FileDirContext.setDocBase(FileDirContext.
> java:142)
>         at
> org.apache.catalina.core.StandardContext.resourcesStart(StandardConte
> xt.java:4249)
>         at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4
> 418)
>         at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
> .java:791)
>         at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:77
> 1)
>         at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
>=20
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.ja
> va:637)
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.j
> ava:563)
>         at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498
> )
>         at
> org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
>         at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
> :321)
>         at
> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
> eSupport.java:119)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
>=20
>         at
> org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
>=20
>         at
> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445
> )
>         at
> org.apache.catalina.core.StandardService.start(StandardService.java:5
> 19)
>         at
> org.apache.catalina.core.StandardServer.start(StandardServer.java:710
> )
>         at
org.apache.catalina.startup.Catalina.start(Catalina.java:581)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at
> org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
>         at
> org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
> 09-Nov-2010 16:37:21 org.apache.catalina.core.StandardContext start
> SEVERE: Error in resourceStart()
> 09-Nov-2010 16:37:21 org.apache.catalina.core.StandardContext start
> SEVERE: Error getConfigured
> 09-Nov-2010 16:37:21 org.apache.catalina.core.StandardContext start
> SEVERE: Context [/A] startup failed due to previous errors
>=20
> Thanks
> Rob
>=20
>=20
> > From: Rob Gregory [mailto:Rob.Gregory@ibsolutions.com]
> > Sent: 09 November 2010 16:22
> > To: Tomcat Users List
> > Subject: Single webapp multiple contexts
> >
> > Hello Tomcat Users,
> >
> >
> >
> > I am trying to create multiple 'dynamic' contexts using just a
single
> > code base. For example we currently deploy a webapps within a
context
> of
> > let's say 'A'. This listens quite happily for requests coming in the
> > form of http://localhost/A/index.htm. What I need to be able to do
is
> > have this same code base also listen for requests in the form of
> > http://localhost/B/index.htm. I have played with using 'fake'
> > context.xml e.g.
> >
> >
> >
> > A.xml =3D <Context useHttpOnly=3D"true"  =
docBase=3D"C:/0600/ieseries.war"
> > path=3D"/A" />
> >
> > B.xml =3D <Context useHttpOnly=3D"true"  =
docBase=3D"C:/0600/ieseries.war"
> > path=3D"/B" />
> >
> >
> >
> > This seems to work but the war is expanded into both contexts and
what
> I
> > really need is a single code base preferably without the requirement
> of
> > using a .war file. I have looked at virtual hosts but this seems to
> > involve changing the host name which is also not what I am trying to
> > achieve.
> >
> >
> >
> > Using Tomcat 6.0.29 under Java(TM) SE Runtime Environment (build
> > 1.6.0_14-b08). CATALINA_HOME is C:/0600.
> >
> >
> >
> > Can anyone give me a gentle push in the right direction if this is
at
> > all possible.
> >
> >
> >
> > Thanks in advance.
> >
> >
> >
> > Rob
> >
> >
> >
> >
>=20
>=20
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