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package org.glassfish.jersey.examples.jsonp.resource;
import java.util.List;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonArrayBuilder;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;
import javax.json.JsonString;
import org.glassfish.jersey.examples.jsonp.service.DocumentStorage;
/**
* Resource filtering stored documents based on the presence of given attributes.
*
* @author Michal Gajdos (michal.gajdos at oracle.com)
*/
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public class DocumentFilteringResource {
@POST
public JsonArray filter(final JsonArray properties) {
final JsonArrayBuilder documents = Json.createArrayBuilder();
final List<JsonString> propertyList = properties.getValuesAs(JsonString.class);
for (final JsonObject jsonObject : DocumentStorage.getAll()) {
final JsonObjectBuilder documentBuilder = Json.createObjectBuilder();
for (final JsonString property : propertyList) {
final String key = property.getString();
if (jsonObject.containsKey(key)) {
documentBuilder.add(key, jsonObject.get(key));
}
}
final JsonObject document = documentBuilder.build();
if (!document.isEmpty()) {
documents.add(document);
}
}
return documents.build();
}
}