[jboss-dev] Redeploy an app if xml is added to metadata location?

[Jaikiran Pai]

Ales Justin wrote:
> Since at least I would expect the AS to pick up my new .xml config file.
> Or why would you put it there?
That does not require a redeploy of the entire application. The user can 
place the xml there and be able to look it up without having to redeploy 
the application. Am i missing something?

-Jaikiran

>
> Jaikiran Pai wrote:
>> I just noticed that we redeploy an entire application if a xml file 
>> gets added/removed from the metadata locations of a application. For 
>> example, if in an exploded WAR file we add a somefile.xml to the 
>> WEB-INF folder the application gets redeployed (easily reproducible 
>> in ROOT.war). Why do we do this? I thought redeploy would be 
>> triggered by touching the deployment descriptor of the app (i.e. 
>> changing the last modified time of web.xml). Looks to be intentional 
>> from what i see in the configurations (profile.xml):
>>
>>  <!-- This just checks metadata locations -->
>>  <bean name="MetaDataStructureModificationChecker" 
>> class="org.jboss.deployers.vfs.spi.structure.modified.MetaDataStructureModificationChecker"> 
>>
>>    <constructor>
>>      <parameter><inject bean="MainDeployer" /></parameter>
>>    </constructor>
>>    <property name="cache"><inject bean="StructureModCache" /></property>
>>    <property name="filter"><bean 
>> class="org.jboss.system.server.profile.basic.XmlIncludeVirtualFileFilter" 
>> /></property>
>>  </bean>
>>
>> org.jboss.deployers.vfs.spi.structure.modified.MetaDataStructureModificationChecker.hasStructureBeenModifed(...): 
>>
>>
>> // do we have some new files or some were deleted
>>                  if (leaves != null && children != null && 
>> leaves.size() != children.size())
>>                  {
>>                     if (log.isTraceEnabled())
>>                        log.trace("Metadata files number changed, old: 
>> " + leaves + ", now: " + children);
>>                     return true;
>>                  }
>>
>> Why do we have to redeploy the application if a xml is added to the 
>> metadata folder of a application?
>>
>> -Jaikiran
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