api allows to get reactions by participanet element id

rest-api/src/main/java/lcsb/mapviewer/api/project/ProjectController.java

@@ -48,8 +48,9 @@ public class ProjectController extends BaseController {
 
 	@RequestMapping(value = "/getReactions", method = { RequestMethod.GET, RequestMethod.POST }, produces = { MediaType.APPLICATION_JSON_VALUE })
 	public List<Map<String, Object>> getReactions(@RequestParam(value = "projectId") String projectId, @RequestParam(value = "id", defaultValue = "") String id,
-			@RequestParam(value = "columns", defaultValue = "") String columns, @RequestParam(value = "token") String token) throws SecurityException {
-		return projectController.getReactions(projectId, id, columns, token);
+			@RequestParam(value = "columns", defaultValue = "") String columns, @RequestParam(value = "token") String token,
+			@RequestParam(value = "participantId", defaultValue = "") String participantId) throws SecurityException {
+		return projectController.getReactions(projectId, id, columns, token, participantId);
 	}
 
 	@RequestMapping(value = "/getClosestElementsByCoordinates", method = { RequestMethod.GET, RequestMethod.POST },
@@ -123,8 +124,8 @@ public class ProjectController extends BaseController {
 			@RequestParam(value = "modelId") String modelId, @RequestParam(value = "handlerClass") String handlerClass,
 			@RequestParam(value = "backgroundOverlayId", defaultValue = "") String backgroundOverlayId,
 			@RequestParam(value = "overlayIds", defaultValue = "") String overlayIds, @RequestParam(value = "zoomLevel", defaultValue = "") String zoomLevel,
-			@RequestParam(value = "polygonString") String polygonString) throws SecurityException, QueryException, IOException,
-			InvalidColorSchemaException, CommandExecutionException, ConverterException, InconsistentModelException {
+			@RequestParam(value = "polygonString") String polygonString) throws SecurityException, QueryException, IOException, InvalidColorSchemaException,
+			CommandExecutionException, ConverterException, InconsistentModelException {
 
 		FileEntry file = projectController.getModelAsModelFile(token, projectId, modelId, handlerClass, backgroundOverlayId, overlayIds, zoomLevel, polygonString);
 		MediaType type = MediaType.APPLICATION_OCTET_STREAM;

rest-api/src/main/java/lcsb/mapviewer/api/project/ProjectRestImpl.java

@@ -284,7 +284,8 @@ public class ProjectRestImpl {
 		return result;
 	};
 
-	public List<Map<String, Object>> getReactions(String projectId, String id, String columns, String token) throws UserAccessException, SecurityException {
+	public List<Map<String, Object>> getReactions(String projectId, String id, String columns, String token, String participantElementId)
+			throws UserAccessException, SecurityException {
 		Model model = modelService.getLastModelByProjectId(projectId, userService.getToken(token));
 		Set<Integer> ids = new HashSet<>();
 		if (!id.equals("")) {
@@ -292,6 +293,12 @@ public class ProjectRestImpl {
 				ids.add(Integer.valueOf(str));
 			}
 		}
+		Set<Element> elementSet = new HashSet<>();
+		if (!participantElementId.equals("")) {
+			for (String str : participantElementId.split(",")) {
+				elementSet.add(model.getElementByDbId(Integer.valueOf(str)));
+			}
+		}
 		Set<String> columnsSet = createReactionColumnSet(columns);
 
 		List<Map<String, Object>> result = new ArrayList<>();
@@ -302,7 +309,9 @@ public class ProjectRestImpl {
 		for (Model model2 : models) {
 			for (Reaction reaction : model2.getReactions()) {
 				if (ids.size() == 0 || ids.contains(reaction.getId())) {
-					result.add(preparedReaction(reaction, columnsSet));
+					if (elementSet.size() == 0 || reactionContainsElement(reaction, elementSet)) {
+						result.add(preparedReaction(reaction, columnsSet));
+					}
 				}
 			}
 		}
@@ -310,6 +319,15 @@ public class ProjectRestImpl {
 		return result;
 	}
 
+	private boolean reactionContainsElement(Reaction reaction, Set<Element> elementSet) {
+		for (Element element : elementSet) {
+			if (reaction.containsElement(element)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	private Map<String, Object> preparedReaction(Reaction reaction, Set<String> columnsSet) {
 		Map<String, Object> result = new HashMap<>();
 		for (String string : columnsSet) {