Method defaultDuplicate

src/main/java/gate/Factory.java:686–736

Implementation of the default duplication algorithm described in the comment for #duplicate(Resource). This method is public for the benefit of resources that implement CustomDuplication but only need to do some post-processing after the default duplication algorithm; they can call t

(Resource res, DuplicationContext ctx)

   *           duplicating the given resource.
   */
  public static Resource defaultDuplicate(Resource res, DuplicationContext ctx)
          throws ResourceInstantiationException {
    checkDuplicationContext(ctx);
    String className = res.getClass().getName();
    ResourceData resData = Gate.getCreoleRegister().get(className);
    if(resData == null) {
      throw new ResourceInstantiationException(
              "Could not find CREOLE data for " + className);
    }
    String resName = res.getName();

    FeatureMap newResFeatures = duplicate(res.getFeatures(), ctx);

    // init parameters
    FeatureMap initParams = AbstractResource.getInitParameterValues(res);
    // remove parameters that are also sharable properties
    for(String propName : resData.getSharableProperties()) {
      initParams.remove(propName);
    }
    // duplicate any Resources in the params map (excluding sharable
    // ones)
    initParams = duplicate(initParams, ctx);
    // add sharable properties to the params map (unduplicated). Some of
    // these
    // may be registered parameters but others may not be.
    for(String propName : resData.getSharableProperties()) {
      initParams.put(propName, res.getParameterValue(propName));
    }

    // create the new resource
    Resource newResource =
            createResource(className, initParams, newResFeatures, resName);
    if(newResource instanceof ProcessingResource) {
      // runtime params
      FeatureMap runtimeParams =
              AbstractProcessingResource.getRuntimeParameterValues(res);
      // remove parameters that are also sharable properties
      for(String propName : resData.getSharableProperties()) {
        runtimeParams.remove(propName);
      }
      // duplicate any Resources in the params map (excluding sharable
      // ones)
      runtimeParams = duplicate(runtimeParams, ctx);
      // do not need to add sharable properties here, they have already
      // been injected by createResource

      newResource.setParameterValues(runtimeParams);
    }

    return newResource;
  }

  /**
   * Construct a feature map that is a copy of the one provided except