It would be nice to have the Property Placeholder support recursive
substitution. I use this feature in Spring to configure properties for
various environments. For example:
db.URL= ${${env}.db.URL}
dev.db.URL=jdbc:jtds:sqlserver://S08DX01:7531/UserAcnt
test.db.URL=jdbc:jtds:sqlserver://S08DXK01:1433/UserAcnt
prod.db.URL=jdbc:jtds:sqlserver://S08DXJ01:8413/UserAcnt
Then in the JVM launch I just have to use -Denv=dev for the dev environment.
But this concept does not work for the Camel Property Place Holder. I tried
to invoke Spring's Place Holder using the Endpoint URI option but there also
it fails.
I can achieve something similar by using the Spring Placeholder to specify
the name of the properties file for the different environment:
<propertyPlaceholder id="properties"
location="classpath:${env}-file-poll.properties"/>
and then have three separate properties file dev-file-poll.properties,
test-file-poll.properties,etc.
I am trying to avoid creating separate properties file for this as it
becomes a maintenance headache. Probably using the Registry or the Blueprint
services I can achieve similar results. Any other options?
Thanks
Raji
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