if (result == null) {
            return "";
        } else if (result.getEffectiveModel() != null) {
            return result.getEffectiveModel().getId();
        } else if (result.getRawModel() != null) {
            return result.getRawModel().getId();
        } else if (result.getFileModel() != null) {
            return result.getFileModel().getId();
        } else {
            return "";
        }
    }

    /**

     * undergone any updates by the model builder, e.g. reflects neither inheritance nor interpolation.
     *
     * @return The raw model, never {@code null}.
     */
    Model getRawModel();

    /**
     * Gets the specified raw model as it was read from a model source. Apart from basic validation, a raw model has not

    /**
     * Gets the file model + build pom transformation, without inheritance nor interpolation.
     *
     * @return The raw model, never {@code null}.
     */
    @Nonnull
    Model getRawModel();

    /**
     * Gets the effective model of the parent POM.
     *
     * @return the effective model of the parent POM, never {@code null}
     */
    @Nonnull
    Model getParentModel();

    /**

            this.fileModel = fileModel;
        }

        @Override
        public Model getEffectiveModel() {
            return effectiveModel;
        }

        @Override
        public Model getRawModel() {
            return rawModel;
        }

        @Override
        public Model getFileModel() {
            return fileModel;
        }

        @Override

        this.model = model;
    }

    /**
     * Gets the raw model being wrapped.
     *
     * @return The raw model or {@code null} if not set.
     */
    public Model getRawModel() {
        return rawModel;
    }

    /**
     * Sets the raw model being wrapped.
     *
     * @param rawModel The raw model, may be {@code null}.
     */

    @Override
    public DefaultModelBuildingRequest setModelCache(ModelCache modelCache) {
        this.modelCache = modelCache;

        return this;
    }

    @Override
    public Model getRawModel() {
        return rawModel;
    }

    @Override
    public ModelBuildingRequest setRawModel(Model rawModel) {
        this.rawModel = rawModel;
        return this;
    }

    @Override

    /**
     * Gets the raw model to build. If not set, model source will be used to load raw model.
     *
     * @return The raw model to build or {@code null} if not set.
     */
    Model getRawModel();

    /**
     * Set raw model.
     *
     * @param rawModel
     */
    ModelBuildingRequest setRawModel(Model rawModel);

    /**
     * Gets the source of the POM to process.
     *

        Model model = null;
        if (result.getEffectiveModel() != null) {
            model = result.getEffectiveModel();
        } else if (result.getRawModel() != null) {
            model = result.getRawModel();
        } else if (result.getFileModel() != null) {
            model = result.getFileModel();
        }

        if (model != null) {
            return model.getId();