multiple property files for PropertyPlaceholderConfigurer

[domurtag]

Hi,

I have the following bean in my Spring configuration file

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">						
	<property name="location">
		
		<!-- Remove one of these depending on whether running on windows / unix -->
		
		<value>file:/usr/local/tomcat/liferay/WEB-INF/jdbc.properties</value>
		<value>file:///C|/workspace/ext-web/docroot/WEB-INF/jdbc.properties</value>
	</property>
</bean>

I need to remove one of the <value> elements depending on whether I'm running on Unix or Windows, which is annoying. Is these any way that I can provide a list of file paths, and Spring will just use the first valid one that it finds?

By the way, I'm using Spring 1.2.

Thanks in advance,
DM

[Arthur Loder]

Hey domurtag,

Take a look at this post for an example of using an environment variable to determine the actual location.

[al0]

Hey domurtag,

Take a look at this post for an example of using an environment variable to determine the actual location.

Would not work with JDK 1.4 (does no support environment variables).
Do not know which JDK original posters uses.

[Arthur Loder]

Can you use multiple PropertyPlaceholderConfigurers, one with a lower order/higher precedence that determines the location of the actual properties file? I think I tried something like that once; seems like it might work.

<bean id="propertyConfigurerZero" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
   <property name="location">
      <value>actualPropLocation.properties</value>
   </property>
   <property name="order" value="0" />
   <!-- below is needed because this is not the last configurer -->
   <property name="ignoreUnresolvablePlaceholders" value="true"/>
</bean>

<bean id="propertyConfigurerOne" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
   <property name="location">
      <value>${actualPropLocation}</value>
   </property>
   <property name="order" value="1" />
</bean>

actualPropLocation.properties:

#actualPropLocation=file:/usr/local/tomcat/liferay/WEB-INF/jdbc.properties
actualPropLocation=file:///C|/workspace/ext-web/docroot/WEB-INF/jdbc.properties

[domurtag]

Thanks for your suggestions, but I don't think any of these solutions give me what I want, i.e. a configuration that will work on Windows/Unix without any changes.

Currently I need to change the <value> element.
With the env. var. suggestion, I'd need to change an env. var.
With Arthur's suggestion I'd need to change a property in actualPropLocation.properties.

All of these options seem pretty much equivalent to me, but thanks for the help all the same.