}

    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);

    /**
     * Returns a new instance of {@link Options} with values interpolated using the given properties.
     *
     * @param properties a collection of property maps to use for interpolation
     * @return a new {@link Options} instance with interpolated values
     */
    @Nonnull
    Options interpolate(@Nonnull Collection<Map<String, String>> properties);

    /**

        try
        {
        new RegexBasedModelInterpolator().interpolate( model, context );
        fail( "Should have failed to interpolate with invalid reference" );
        }
        catch ( ModelInterpolationException expected )
        {
        assertTrue( true );
        }
        */

        ModelInterpolator interpolator = createInterpolator();

        // inject interpolated activations
        List<org.apache.maven.api.model.Profile> interpolated =
                interpolateActivations(tmpModel.getDelegate().getProfiles(), profileActivationContext, problems);
        if (interpolated != tmpModel.getDelegate().getProfiles()) {
            tmpModel.update(tmpModel.getDelegate().withProfiles(interpolated));
        }

      // index * (dataset.length - 1) / scale. If there is no remainder, we can just find the value
      // whose index in the sorted dataset equals the quotient; if there is a remainder, we
      // interpolate between that and the next value.

      // Since index and (dataset.length - 1) are non-negative ints, their product can be expressed
      // as a long, without risk of overflow:

:100},\"title\":{\"text\":\"Average responseTime\"}}],\"seriesParams\":[{\"show\":\"true\",\"type\":\"area\",\"mode\":\"stacked\",\"data\":{\"label\":\"Average responseTime\",\"id\":\"1\"},\"drawLinesBetweenPoints\":true,\"showCircles\":true,\"interpolate\":\"linear\",\"valueAxis\":\"ValueAxis-1\"}],\"addTooltip\":true,\"addLegend\":true,\"legendPosition\":\"right\",\"times\":[],\"addTimeMarker\":false,\"dimensions\":{\"x\":{\"accessor\":0,\"format\":{\"id\":\"date\",\"params\":{\"pattern\":\"HH...

    /**
     * Returns a new instance of {@link MavenOptions} with values interpolated using the given properties.
     *
     * @param properties a collection of property maps to use for interpolation
     * @return a new MavenOptions instance with interpolated values
     */
    @Nonnull
    MavenOptions interpolate(@Nonnull Collection<Map<String, String>> properties);

             */
            Plugin plugin = Plugin.newBuilder()
                    .groupId(interpolator.apply(extension.getGroupId()))
                    .artifactId(interpolator.apply(extension.getArtifactId()))
                    .version(interpolator.apply(extension.getVersion()))
                    .build();

        }
    }

    public void substitute() {
        substitute(callback);
    }

    public void substitute(Function<String, String> callback) {
        new DefaultInterpolator().interpolate(storage, callback);
    }

    /**
     * Writes the properties file to the given writer, preserving as much of its
     * structure as possible.
     *
     * @param out the writer

                            Severity.WARNING,
                            Version.V30,
                            prefix + path,
                            null,
                            "Failed to interpolate profile activation property " + s + ": " + propertyName
                                    + " expressions are not supported during profile activation.",
                            locationSupplier.get());
                }