List<PipelineInput<?>> pipelineInputs = new ArrayList<PipelineInput<?>>() {{
add(PipelineInput.port("source", inputSource));
add(PipelineInput.port("parameters", new InputSource(paramsStream)));
}};
pipeline.run(pipelineInputs);
List<Source> sources = pipeline.getResultPort("result"); // result of xinclude;
return sources.get(0);
}