conf.addProperty("facet.color.minhit", "1");
conf.addProperty("facet.color.maxcount", "10");
conf.addProperty("facet.color.expand", "false");
conf.addProperty("facet.color.order", "hits");
conf.addProperty("facet.category.minhit", "0");
conf.addProperty("facet.category.maxcount", "5");
conf.addProperty("facet.category.expand", "true");
conf.addProperty("facet.category.order", "val");
Map<String,Configuration> mapConf = RequestConverter.parseParamConf(conf, "blah");