/**
     * @deprecated Use {@link ModelInterpolator#interpolate(Model, File, ProjectBuilderConfiguration, boolean)} instead.
     */
    @Deprecated
    Model interpolate(Model project, Map<String, ?> context) throws ModelInterpolationException;

    /**
     * @deprecated Use {@link ModelInterpolator#interpolate(Model, File, ProjectBuilderConfiguration, boolean)} instead.
     */
    @Deprecated

     *
     * @param properties The map containing key-value pairs to be interpolated.
     * @param callback The function to resolve variable values not found in the map.
     */
    default void interpolate(@Nonnull Map<String, String> properties, @Nullable UnaryOperator<String> callback) {
        interpolate(properties, callback, null, true);
    }

    /**
     * Interpolates the values in the given map using the provided callback function.
     *

public interface ModelInterpolator {

    /**
     * Interpolates expressions in the specified model. Note that implementations are free to either interpolate the
     * provided model directly or to create a clone of the model and interpolate the clone. Callers should always use
     * the returned model and must not rely on the input model being updated.
     *
     * @param model The model to interpolate, must not be {@code null}.

        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();

        interpolator.addValueSource(new PropertiesBasedValueSource(request.getUserProperties()));

        interpolator.addValueSource(new PropertiesBasedValueSource(request.getSystemProperties()));

        try {
            interpolator.addValueSource(new EnvarBasedValueSource());
        } catch (IOException e) {

                    fileString = interpolator.interpolate(fileString, "").replace("\\", "/");
                    File file = new File(fileString);
                    return !file.exists();
                }
            } catch (InterpolationException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to interpolate missing file location for profile activator: " + fileString, e);
                } else {

                }
                return null;
            }
        });

        try {
            serializedToolchains = interpolator.interpolate(serializedToolchains);
        } catch (InterpolationException e) {
            problems.add(Problem.Severity.ERROR, "Failed to interpolate toolchains: " + e.getMessage(), -1, -1, e);
            return toolchains;
        }

        PersistedToolchains result;
        try {

    @Test
    void interpolate() throws ModelInterpolationException, InitializationException {
        Model model = Model.newBuilder()
                .groupId("group")
                .location("groupId", InputLocation.of(InputSource.of("model", null)))
                .build();
        StringSearchModelInterpolator interpolator = new StringSearchModelInterpolator();
        interpolator.initialize();

    }

    public interface ContentTransformer {
        /**
         * Interpolate the value read from the xpp3 document
         * @param source The source value
         * @param fieldName A description of the field being interpolated. The implementation may use this to
         *                           log stuff.
         * @return The interpolated value.
         */
        String transform(String source, String fieldName);

            return false;
        }

        try {
            path = profileActivationFilePathInterpolator.interpolate(path, context);
        } catch (InterpolationException e) {
            problems.add(new ModelProblemCollectorRequest(Severity.ERROR, Version.BASE)
                    .setMessage("Failed to interpolate file location " + path + " for profile " + profile.getId() + ": "
                            + e.getMessage())

    }

    public interface ContentTransformer {
        /**
         * Interpolate the value read from the xpp3 document
         *
         * @param source    the source value
         * @param fieldName a description of the field being interpolated. The implementation may use this to
         *                  log stuff
         * @return the interpolated value
         */
        String transform(String source, String fieldName);
    }