Patches item #817427, was opened at 2003-10-03 20:59
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Category: JBossServer
Group: v3.2
Status: Open
Resolution: None
Priority: 5
Submitted By: RE (emberson)
Assigned to: Nobody/Anonymous (nobody)
Summary: service-bindings.xml parser and string replace upgrade
Initial Comment:
There are two patches here.
A patch was recently submitted allowing one to use the
"${}" property
replacement in the service-bindings.xml. The patch was
for some of the
files in
jboss-3.2.2RC4-src/varia/src/main/org/jboss/services/binding/.
The patch was incomplete, the parsing of the name of
the service was not
augmented to allow for "${}" property replacement.
The fix is the file XMLServicesStore.java in the
attached zip file.
basically line 126 is changed from
String serverName = server.getAttribute("name");
to
String serverName =
Strings.replaceProperties(server.getAttribute("name"));
The second patch concerns how jboss actually does "${}"
property replacement.
Currently, embedded "${}" are not evaluated, which is
to say
${com.acme.{jboss.service.name}.naming.host}
can not be evaluated.
Using a part of the service-bindings.xml found in the
zip file as an example
one could have the following:
<server name="${jboss.server.name}">
<service-config name="jboss:service=Naming"
delegateClass="org.jboss.services.binding.AttributeMappingDelegate"
>
<delegate-config portName="Port"/>
<binding
name="${jboss.server.name}-naming"
host="${com.acme.${jboss.server.name}.naming.host}"
port="${com.acme.${jboss.server.name}.naming.port}"
/>
</service-config>
... more ...
</server>
You can then have a single service definition (if you
want) but depending
upon which jboss instance was starting, different
properties would
looked up to get the needed values. This allows one to
have 1-N jboss
instance all using the same service binding definition
without having
to explicitly create one for each instance.
Included is a standalone file, PropertyReplacer.java,
which allows one
to test the new "${}" property replacement algorithm as
well as the
file Strings.java from the directory
jboss-3.2.2RC3-src/common/src/main/org/jboss/util/ with the
new algorithm.
I am submitting the new "${}" property replacement
algorithm to the
Ant group also since it would be very useful in many of
the ant scripts
we use.
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