How do I access ${user.home} in JavaConfig?

[JavaGeek_Boston]

Hello All,

How can I access ${user.home} using JavaConfig? I'd like to be able declare:

@PropertiesValueSource(locations="file:${user.home}/.isg/test.properties")

as I do in the XML config presently:

<context:property-placeholder location="file:${user.home}/.isg/test.properties" />

We store all machine-specific data, such as JDBC info, in a properties file the user's home directory. We then merge the properties file into the spring config using the PropertyPlaceholderConfigurer.

In XML config, I'd use:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd">

	<context:property-placeholder location="file:${user.home}/.isg/test.properties" />
	<!-- put to separate object to allow for retrieval by performance tests.  -->
	<bean id="bdbHome" class="java.lang.String">
		<constructor-arg index="0" value="file:/${user.home}/db/" />
	</bean>
	<!-- put to separate object to allow for retrieval by performance tests.  -->
	<bean id="bdbdir" class="java.io.File">
		<constructor-arg index="0" value="${user.home}/db/" />
	</bean>

	<context:annotation-config />
</beans>

In JavaConfig, I'm trying to do:

@PropertiesValueSource(locations="file:${user.home}/.isg/test.properties")
@Configuration(checkRequired=true)
public abstract class ApplicationConfig {
	@Bean()
	public StartupConfig getConfig() {
		StartupConfig startup = new StartupConfig();
		startup.setDatabaseHomeDirectory(new File(getBDBDir()));
		return startup;
	}

	@Bean
	public BDBWrapper getWrapper() throws DatabaseException {
		return new BDBWrapper(getConfig());
	}	
	
	@ExternalValue(value="indivo.bdbhome")
	public abstract String getBDBDir();
	
}

Thanks,
Steven