I haven't looked at this but possibly it could help:

org.springmodules.commons.configuration.CommonsConfigurationFactoryBean


Rusty Wright wrote:
I'm using Spring to autowire things together; in my Spring test-applicationContext.xml I have

<bean id="configurationBuilder" class="org.apache.commons.configuration.DefaultConfigurationBuilder">
        <property name="fileName" value="test-config-xml.xml" />
   </bean>

In test-config-xml.xml I have

   <?xml version="1.0" encoding="ISO-8859-1" ?>

   <configuration>
       <xml
           config-name="ftp"
           fileName="properties/ftp.xml"
       />

       <xml
           config-name="email"
           fileName="properties/email.xml"
       />
   </configuration>

And ftp.xml contains

   <?xml version="1.0" encoding="ISO-8859-1" ?>

   <ftp>
       <server>${ftp.server}</server>

       <login>${ftp.login}</login>

       <password>${ftp.password}</password>

       <siteCmd>${ftp.siteCmd}</siteCmd>
   </ftp>

The ${} placeholders are replaced by maven when I run my tests. The email.xml file contains similar entries.

In my class that uses the DefaultConfigurationBuilder, it's injected by Spring in its constructor:

   @Autowired
   public FtpEdt(final DefaultConfigurationBuilder configBuilder)
           throws ConfigurationException {
       super();

final CombinedConfiguration combinedConfig = configBuilder.getConfiguration(true);

       final Configuration config = combinedConfig.getConfiguration("ftp");

       this.server = config.getString("server");

       if (this.server == null)
           throw (new IllegalStateException("server not set"));

The problem is when the Email class's constructor is called, which looks very similar, it blows up on the configBuilder.getConfiguration(true); with

Caused by: org.apache.commons.configuration.ConfigurationRuntimeException: A configuration with the name 'ftp' already exists in this combined configuration! at org.apache.commons.configuration.CombinedConfiguration.addConfiguration(CombinedConfiguration.java:315) [commons-configuration-1.5.jar:1.5] at org.apache.commons.configuration.DefaultConfigurationBuilder.initCombinedConfiguration(DefaultConfigurationBuilder.java:572) [commons-configuration-1.5.jar:1.5] at org.apache.commons.configuration.DefaultConfigurationBuilder.getConfiguration(DefaultConfigurationBuilder.java:501) [commons-configuration-1.5.jar:1.5] at edu.berkeley.ist.cars.net.email.Email.<init>(Email.java:41) [classes/:na]
       ...

So I guess I don't understand how to use the CombinedConfiguration and the DefaultConfigurationBuilder; can someone give me some hints for how to do this?

Thanks

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