Hi,
I am very new to Avalon but like it already quite alot.
I am using Phoenix to start my server (block) but I would like to use a
ExcaliburComponentManager inside my block to be able to use roles, etc.
I use the ComponentManager provided by Phoenix (4.0a3) as the parent manager
of the ExcaliburComponentManager.
I just don't know at the moment how to get rid of the following exception:
Phoenix 4.0a3
DEBUG 10182 [de.ebp.g] (): added Role de.ebp.worerkpool.Market with
shorthand market for de.ebp.workerpool.MarketComp
DEBUG 10182 [de.ebp.g] (): added Role de.ebp.workerpool.ProducerFactory
with shorthand fileProducerFactory for
de.ebp.globus.messageinput.FileProducerFactoryComp
DEBUG 10182 [de.ebp.g] (): added Role de.ebp.workerpool.ConsumerFactory
with shorthand fileConsumerFactory for
de.ebp.globus.messageinput.FileConsumerFactoryComp
DEBUG 10182 [de.ebp.g] (): looking up shorthand market, returning
de.ebp.worerkpool.Market
DEBUG 10182 [de.ebp.g] (): Adding component (de.ebp.worerkpool.Market =
de.ebp.workerpool.MarketComp)
DEBUG 10182 [de.ebp.g] (): Attempting to get Handler for:
de.ebp.worerkpool.Market
DEBUG 10182 [de.ebp.g] (): Handler type =
org.apache.avalon.excalibur.component.DefaultComponentHandler
DEBUG 10182 [de.ebp.g] (): ComponentHandler initialized for:
de.ebp.workerpool.MarketComp
DEBUG 10182 [de.ebp.g] (): Could not find ComponentHandler, attempting
to create one for role: de.ebp.workerpool.Market
DEBUG 10182 [de.ebp.g] (): Could not find component for role:
de.ebp.workerpool.Market
java.lang.NullPointerException
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:279)
at java.lang.ClassLoader.loadClass(ClassLoader.java:290)
at java.lang.ClassLoader.loadClass(ClassLoader.java:290)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at
org.apache.avalon.excalibur.component.ExcaliburComponentManager.lookup(Excal
iburComponentManager.java:273)
at
org.apache.avalon.excalibur.component.ExcaliburComponentManager.hasComponent
(ExcaliburComponentManager.java:140)
at
de.ebp.globus.block.GlobusServerBlock.initialize(GlobusServerBlock.java:124)
at
org.apache.avalon.phoenix.components.application.LifecycleHelper.startup(Lif
ecycleHelper.java:200)
at
org.apache.avalon.phoenix.components.application.DefaultApplication.runPhase
(DefaultApplication.java:177)
at
org.apache.avalon.phoenix.components.application.DefaultApplication.start(De
faultApplication.java:89)
at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.startup(DefaultKer
nel.java:125)
at
org.apache.avalon.phoenix.components.kernel.DefaultKernel.addApplication(Def
aultKernel.java:170)
at
org.apache.avalon.phoenix.components.deployer.DefaultDeployer.deploy(Default
Deployer.java:168)
at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:351)
at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFile(Def
aultEmbeddor.java:345)
at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployFiles(De
faultEmbeddor.java:330)
at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.deployDefaultA
pplications(DefaultEmbeddor.java:320)
at
org.apache.avalon.phoenix.components.embeddor.DefaultEmbeddor.execute(Defaul
tEmbeddor.java:162)
at
org.apache.avalon.phoenix.frontends.CLIMain.execute(CLIMain.java:96)
at org.apache.avalon.phoenix.frontends.CLIMain.main(CLIMain.java:64)
at java.lang.reflect.Method.invoke(Native Method)
at org.apache.avalon.phoenix.launcher.Main.main(Main.java:54)
In my naive thinking things go really wrong here:
ExcaliburComponentManager.hasComponent(ExcaliburComponentManager.java:140)
But the Java source looks like this:
133 public boolean hasComponent( final String role )
134 {
135 if ( ! m_initialized ) return false;
136 if ( m_disposed ) return false;
138 boolean exists = m_componentHandlers.containsKey( role );
140 if ( ! exists && null != m_parentManager )
141 {
142 exists = m_parentManager.hasComponent( role );
143 }
145 return exists;
146 }
Of course source and class files are both from the Excalibur 4.1
distribution.
My _real_ problem seem to be documented in the following lines:
DEBUG 10182 [de.ebp.g] (): Attempting to get Handler for:
de.ebp.worerkpool.Market
DEBUG 10182 [de.ebp.g] (): Handler type =
org.apache.avalon.excalibur.component.DefaultComponentHandler
DEBUG 10182 [de.ebp.g] (): ComponentHandler initialized for:
de.ebp.workerpool.MarketComp
DEBUG 10182 [de.ebp.g] (): Could not find ComponentHandler, attempting
to create one for role: de.ebp.workerpool.Market
So first a component handler is initialized for the role and then it
couldn't be found. But I suppose I won't be able to get the clue out of it
before I have the right source/class files.
I tried to compile Excalibur from the provided source myself but didn't
succeed:
[javac]
C:\Java\Avalon\Excalibur-4.1\src\scratchpad\org\apache\avalon\excalibur\cach
e\store\test\MemoryStoreTestCase.java:19: cannot resolve symbol
[javac] symbol : class AbstractCacheStoreTestCase
[javac] location: class
org.apache.avalon.excalibur.cache.store.test.MemoryStoreTestCase
[javac] extends AbstractCacheStoreTestCase
[javac] ^
I could get rid of this all probably by gettint everything from the CVS and
doing it all myself. But I would really like to have an official
distribution instead.
Any hint would be helpful.
Regards,
Ole
P.S.: I am using JDK 1.3.1 on Windows 2000 with Cygwin.
--
Ole Bulbuk Tel.: 0331/74759/60
Ernst Basler + Partner Fax: 0331/74759/90
Tuchmacherstr. 47 E-Mail: mailto:[EMAIL PROTECTED]
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