Need to Configure RTLOGMapping.xml to Use Different Mapping Files for Different Store Groups

Our requirement is as follows:

• We have around 20 stores.
• We want 10 stores to use rtlogmapping1.xml and the other 10 stores to use rtlogmapping2.xml for POSLOG-to-RTLOG conversion.
  
  How can we achieve this?

<bean id="ReSA_Broadcaster"
class="com.micros_retail.xcenter.broadcast.generic.v21.GenericPoslogObjBroadcaster">

<constructor-arg name="orgId"                value="1"/>
<constructor-arg name="broadcasterServiceId" value="RESA_BROADCASTER"/>
<constructor-arg name="jaxwsService"         ref="ReSA_Broadcaster_jaxws"/>

<property name="xmlModifiers">
  <list value-type="com.micros_retail.xcenter.broadcast.IXMLModifier">
    <ref bean="removePCIData"/>
  </list>
</property>

Can we change orgId to store number or district number?