how to inject into components.xml?

[x490812]

I want to do something like this in components.xml

<drools:rule-agent name="isDealRuleBase" 
   url="http://#{webServerUrl}/jbrms/org.drools.brms.JBRMS/package/com.homeq.cam.deal.domain.isDeal/LATEST"
   local-cache-dir="/var/data/cam"
   poll="30">
  </drools:rule-agent>
  
   <drools:rule-agent name="isFastTrackRuleBase"
   url="http://#{webServerUrl}/jbrms/org.drools.brms.JBRMS/package/com.homeq.cam.deal.domain.isFastTrack/LATEST"
   local-cache-dir="/var/data/cam"
   poll="30">
  </drools:rule-agent>

  <drools:rule-agent name="generalRuleBase"
   url="http://#{webServerUrl}/jbrms/org.drools.brms.JBRMS/package/com.homeq.cam.deal.domain.generalDealRules/LATEST"
   local-cache-dir="/var/data/cam"
   poll="30">
  </drools:rule-agent>

#{webServerUrl} comes from a system property as in the following

@Name("serverInfo")
@Scope(ScopeType.APPLICATION)
public class ServerInfo implements Serializable {
.
.
@Factory
        public String getWebServerURL(){
                webServerUrl = System.getProperty("Cam.Server.Url");
                return webServerUrl;
        }

I want 1 ear file that I can deploy to 3 different servers where each server has in its classpath a server specific properties file from which to get its own #{webServerURL}. How can I ge system properties (from a property file) into components.xml????

[v.masterov]

Could not you use this one ?:

#{serverInfo.webServerURL}

@Factory annotation is not required here...

[x490812]

Have tried this already  here is code

@Name("serverInfo")
@Scope(ScopeType.APPLICATION)
@Startup
public class ServerInfo implements Serializable {

     private static final long serialVersionUID = 1L;

     String serverName = "Ukn."; // Unknown server name (short, for small
                                                                           // display)

     private String webServerURL = null;

     public ServerInfoTest() {
          try {
               InetAddress addr = InetAddress.getLocalHost();
               serverName = addr.getHostName();
               webServerURL = System.getProperty("CAM.Server.Url");
          } catch (Exception e) {
               System.out.println(e.toString());
          }
          
          

     }

     public String getServerName() {
          return this.serverName;
     }
     

     public String getWebServerURL(){
          return webServerURL;
     }

}

Here is the error

18:05:35,083 ERROR [STDERR] RuleAgent(default) INFO (Sun Jul 06 18:05:35 PDT 2008): Configuring with newInstance=false, secondsToRefresh=30
18:05:35,099 ERROR [STDERR] RuleAgent(default) INFO (Sun Jul 06 18:05:35 PDT 2008): Configuring package provider : URLScanner monitoring URLs:  http://#{serverInfo.webServerURL}#{serverInfo.webServerURL}/drools-jbrms/org.drools.brms.JBRMS/package/com.homeq.cam.deal.domain.isDeal/LATEST with local cache dir of \var\data\cam
18:05:50,317 ERROR [STDERR] RuleAgent(default) WARNING (Sun Jul 06 18:05:50 PDT 2008): Was an error contacting http://#{serverInfo.webServerURL}#{serverInfo.webServerURL}/drools-jbrms/org.drools.brms.JBRMS/package/com.homeq.cam.deal.domain.isDeal/LATEST. Reponse header: {}
18:05:50,317 ERROR [STDERR] RuleAgent(default) EXCEPTION (Sun Jul 06 18:05:50 PDT 2008): Was unable to reach server.. Stack trace should follow.
18:05:50,317 ERROR [STDERR] java.io.IOException: Was unable to reach server.
18:05:50,317 ERROR [STDERR]      at org.drools.agent.URLScanner.hasChanged(URLScanner.java:145)
18:05:50,317 ERROR [STDERR]      at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:109)
18:05:50,317 ERROR [STDERR]      at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88)
18:05:50,317 ERROR [STDERR]      at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330)
18:05:50,317 ERROR [STDERR]      at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298)
18:05:50,317 ERROR [STDERR]      at org.drools.agent.RuleAgent.configure(Ru
.
.

It seems interpolation is not happening as I have a breakpoint in the getWebServerURL function and it never gets in there during execution. In addition, I dont know why the duplication of the el expression, i.e., #{serverInfo.webServerURL}#{serverInfo.webServerURL}

Any Ideas???

[x490812]

Please ignore reference to serverInfoTest - it is actually correct as serverInfo