final MapBasedValueSource valueSource = this.getValueSource();
FileUtils.FilterWrapper filterWrapper = new FileUtils.FilterWrapper() {
public Reader getReader(Reader fileReader) {
RegexBasedInterpolator regexInterpolator = new RegexBasedInterpolator();
regexInterpolator.addValueSource(valueSource);
return new InterpolatorFilterReader(fileReader, regexInterpolator);
}
};