private Extractor getExtractor(ServletContext context, String id) {
CompareRegistry registry =
(CompareRegistry) context.getAttribute(CompareRegistry.class.getName());
Collection<Extractor> Extractors = registry.getAvailableExtractors();
Extractor extractor = null;
for (Extractor e : Extractors) {
if (e.getClass().getName().equals(id)) {
extractor = e;
}
}
return extractor;
}
@GET
@Path("/")
@Produces("text/html")
public String listHTML(@Context ServletContext context) {
log.trace("/extractors requested");
Collection<Extractor> extractors = getExtractors(context);
if (extractors.size() == 0) {
return "No Extractors";
} else {
String content = new String("<h3>Versus > Extractors</h3><ul>");
for (Extractor extractor : extractors) {
content +=
"<li><a href='extractors/"
+ extractor.getClass().getName()
+ "'>"
+ extractor.getClass().getName()
+ "</a></li>";
}
content += "</ul>";
return content;
}
}
@GET
@Path("/{id}")
@Produces("application/json")
public Map<String, Object> getExtractorJSON(
@PathParam("id") String id, @Context ServletContext context) {
log.trace("/extractors/" + id + " requested");
Extractor extractor = getExtractor(context, id);
Map<String, Object> json = new HashMap<String, Object>();
if (extractor != null) {
json.put("name", extractor.getName());
json.put("id", extractor.getClass().getName());
json.put("supportedFeature", extractor.getFeatureType().getName());
} else {
json.put("Error", "Extractor not found");
}
return json;
}
@GET
@Path("/")
@Produces("application/json")
public List<Map<String, Object>> listJSON(@Context ServletContext context) {
log.trace("/extractors requested");
Collection<Extractor> extractors = getExtractors(context);
List<Map<String, Object>> jsonReturn = new ArrayList<Map<String, Object>>();
if (extractors.size() == 0) {
return jsonReturn;
} else {
for (Extractor extractor : extractors) {
Map<String, Object> json = new HashMap<String, Object>();
json.put("name", extractor.getName());
json.put("id", extractor.getClass().toString());
json.put("supportedFeature", extractor.getFeatureType().getName());
jsonReturn.add(json);
}
return jsonReturn;
}
}