private static void bindNestedResources()

in uimafit-core/src/main/java/org/apache/uima/fit/factory/ExternalResourceFactory.java [1151:1192]
28 lines of code
7 McCabe index (conditional complexity)

  private static void bindNestedResources(ExternalResourceDescription aRes,
          Map<String, ExternalResourceBinding> aBindings,
          Map<String, ExternalResourceDescription> aResources) {
    // Handle nested resources
    if (aRes instanceof ExtendedExternalResourceDescription_impl) {
      ExtendedExternalResourceDescription_impl extRes = (ExtendedExternalResourceDescription_impl) aRes;

      // Tell the external resource its name. This is needed in order to find the resources
      // bound to this resource later on. Set only if the resource supports this parameter.
      // Mind that supporting this parameter is mandatory for resource implementing
      // ExternalResourceAware.
      if (canParameterBeSet(extRes.getResourceSpecifier(), PARAM_RESOURCE_NAME)) {
        ConfigurationParameterFactory.setParameter(extRes.getResourceSpecifier(),
                PARAM_RESOURCE_NAME, aRes.getName());
      }

      // Create a map of all resources
      Map<String, ExternalResourceDescription> res = new HashMap<String, ExternalResourceDescription>();
      for (ExternalResourceDescription r : extRes.getExternalResources()) {
        res.put(r.getName(), r);
      }

      // Bind nested resources
      for (ExternalResourceBinding b : extRes.getExternalResourceBindings()) {
        // Avoid re-prefixing the resource name
        String key = b.getKey();
        if (!key.startsWith(aRes.getName() + PREFIX_SEPARATOR)) {
          key = aRes.getName() + PREFIX_SEPARATOR + b.getKey();
        }
        // Avoid unnecessary binding and an infinite loop when a resource binds to itself
        if (!aBindings.containsKey(key)) {
          // Mark the current binding as processed so we do not recurse
          aBindings.put(key, b);
          ExternalResourceDescription nestedRes = res.get(b.getResourceName());
          aResources.put(nestedRes.getName(), nestedRes);
          bindNestedResources(nestedRes, aBindings, aResources);
          // Set the proper key on the binding.
          b.setKey(key);
        }
      }
    }
  }