public Set<String> getBrandNamesByNameAndUnii(String name, String unii) throws IOException {
UriComponentsBuilder builder =
UriComponentsBuilder.fromHttpUrl(this.fdaDrugLabelUrl)
.queryParam(
"search",
"(openfda.unii:"
+ fixTerm.makeFdaSafe(unii)
+ ")+AND+(openfda.brand_name:"
+ fixTerm.makeFdaReady(fixTerm.makeFdaSafe(name))
+ ")")
.queryParam("count", "openfda.brand_name.exact");
this.apiKey.addToUriComponentsBuilder(builder);
try {
String result = rest.getForObject(builder.build().toUri(), String.class);
FieldFinder finder = new FieldFinder("term");
return finder.find(result);
} catch (HttpClientErrorException notFound) {
if (notFound.getStatusCode() == HttpStatus.NOT_FOUND) {
// server reported 404, handle it by returning no results
log.warn("No brand name data found for search by name: " + name + " and unii " + unii);
return Collections.emptySet();
}
throw notFound;
}
}
@RequestMapping("/drug")
public String search(
@RequestParam(value = "name", defaultValue = "") String name,
@RequestParam(value = "limit", defaultValue = "10") int limit,
@RequestParam(value = "skip", defaultValue = "0") int skip)
throws IOException {
name = fixTerm.makeFdaSafe(name);
if (name.length() == 0) {
return "[]";
}
List<DrugSearchResult> rv = new LinkedList<DrugSearchResult>();
Set<String> uniis = this.getUniisByName(name);
Map<String, Set<String>> brandNames = this.getBrandNamesByNameAndUniis(name, uniis);
// create full list of drug search results
for (String unii : uniis) {
for (String brandName : brandNames.get(unii)) {
DrugSearchResult res = new DrugSearchResult();
res.setUnii(unii);
res.setBrandName(brandName);
rv.add(res);
}
}
// sort the list of drug search results by custom comparator
Collections.sort(rv, new DrugSearchComparator(name));
// implement skip/limit
if (rv.size() > 0) {
rv = rv.subList(skip, Math.min(rv.size(), skip + limit));
}
// fill in details for all the results we're returning
for (DrugSearchResult res : rv) {
res.setRxcui(this.getRxcuiByUnii(res.getUnii()));
res.setGenericName(this.getGenericNameByRxcui(res.getRxcui()));
if (res.getActiveIngredients().isEmpty() && res.getGenericName() != null) {
res.setActiveIngredients(
new TreeSet<String>(Arrays.asList(res.getGenericName().split(", "))));
}
}
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(rv);
}