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19  package org.apache.james.container.spring.examples.configuration;
20  
21  import org.apache.avalon.framework.configuration.MutableConfiguration;
22  
23  /**
24   * re-maps all privileged ports into the 9000's range
25   */
26  public class UnprivilegedPortConfigurationInterceptor extends TraversingConfigurationInterceptor {
27  
28      protected void process(MutableConfiguration mutableConfiguration) {
29          String name = mutableConfiguration.getName();
30          if ("port".equals(name)) {
31              int port = mutableConfiguration.getValueAsInteger(0);
32              if (port > 0 && port < 1024) {
33                  // map privileged port to unprivileged in the 9000's range
34                  port += 9000;
35              }
36              mutableConfiguration.setValue(port);
37          }
38      }
39  }