Crop page as JSON

src/main/java/org/genesys2/server/servlet/controller/CropController.java

@@ -23,6 +23,8 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
 import org.elasticsearch.common.lang3.StringUtils;
 import org.genesys2.server.model.impl.Crop;
 import org.genesys2.server.model.impl.CropRule;
@@ -42,9 +44,11 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Sort;
+import org.springframework.http.MediaType;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
@@ -55,6 +59,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.JsonMappingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.web.bind.annotation.ResponseBody;
 
 @Controller
 @RequestMapping("/c")
@@ -91,6 +96,27 @@ public class CropController extends BaseController {
 		return "/crop/list";
 	}
 
+    @GetMapping(value = "/", produces = MediaType.APPLICATION_JSON_VALUE)
+    public @ResponseBody ObjectNode statistics() {
+        LOG.debug("Fetching statistics of crops.");
+        final ObjectMapper mapper = new ObjectMapper();
+        final ObjectNode mainNode = mapper.createObjectNode();
+        final ArrayNode arrayNode = mapper.createArrayNode();
+        final List<Crop> cropList = cropService.list(getLocale());
+        for (final Crop crop : cropList) {
+            final ObjectNode objectNode = mapper.createObjectNode();
+            objectNode.put("crop", crop.getShortName());
+            objectNode.put("count", genesysService.countByCrop(crop));
+            arrayNode.add(objectNode);
+        }
+        mainNode.set("crops", arrayNode);
+        mainNode.put("numberOfCountries", statisticsService.numberOfCountries());
+        mainNode.put("numberOfInstitutes", statisticsService.numberOfInstitutes());
+        mainNode.put("numberOfActiveAccessions", statisticsService.numberOfActiveAccessions());
+
+        return mainNode;
+    }
+
 	@RequestMapping("/{shortName}")
 	public String view(ModelMap model, @PathVariable(value = "shortName") String shortName) {
 		LOG.debug("Viewing crop {}", shortName);