From d83edb14db71351b33ce13d09b9ad40ee449f6ec Mon Sep 17 00:00:00 2001
From: Jan Tymel <410388@mail.muni.cz>
Date: Tue, 23 Feb 2021 21:35:14 +0100
Subject: [PATCH] First iteration of questionnaire answers evaluation
---
.../QuestionnaireEvaluationController.java | 58 +++++++++
.../adaptive/domain/QuestionAnswer.java | 32 +++++
.../adaptive/domain/QuestionAnswerId.java | 49 +++++++
.../adaptive/domain/QuestionPhaseResult.java | 61 +++++++++
.../adaptive/dto/run/QuestionAnswerDTO.java | 31 +++++
.../dto/run/QuestionnairePhaseAnswersDTO.java | 21 +++
.../facade/QuestionnaireEvaluationFacade.java | 25 ++++
.../repository/QuestionAnswerRepository.java | 10 ++
.../QuestionPhaseRelationRepository.java | 8 ++
.../QuestionPhaseResultRepository.java | 9 ++
.../QuestionnaireEvaluationService.java | 121 ++++++++++++++++++
11 files changed, 425 insertions(+)
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/controller/QuestionnaireEvaluationController.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswer.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswerId.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionPhaseResult.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionAnswerDTO.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionnairePhaseAnswersDTO.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/facade/QuestionnaireEvaluationFacade.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionAnswerRepository.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseResultRepository.java
create mode 100644 src/main/java/cz/muni/ics/kypo/training/adaptive/service/QuestionnaireEvaluationService.java
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/controller/QuestionnaireEvaluationController.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/controller/QuestionnaireEvaluationController.java
new file mode 100644
index 00000000..af9ae397
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/controller/QuestionnaireEvaluationController.java
@@ -0,0 +1,58 @@
+package cz.muni.ics.kypo.training.adaptive.controller;
+
+import cz.muni.ics.kypo.training.adaptive.dto.run.QuestionnairePhaseAnswersDTO;
+import cz.muni.ics.kypo.training.adaptive.facade.QuestionnaireEvaluationFacade;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+import io.swagger.annotations.Authorization;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.validation.Valid;
+
+@RestController
+@RequestMapping(value = "/training-runs", produces = MediaType.APPLICATION_JSON_VALUE)
+@CrossOrigin(origins = "*", allowCredentials = "true", allowedHeaders = "*",
+ methods = {RequestMethod.GET, RequestMethod.POST, RequestMethod.DELETE, RequestMethod.PUT})
+@Api(value = "/training-runs",
+ tags = "Training runs",
+ consumes = MediaType.APPLICATION_JSON_VALUE,
+ authorizations = @Authorization(value = "bearerAuth"))
+public class QuestionnaireEvaluationController {
+
+ private final QuestionnaireEvaluationFacade questionnaireEvaluationFacade;
+
+ @Autowired
+ public QuestionnaireEvaluationController(QuestionnaireEvaluationFacade questionnaireEvaluationFacade) {
+ this.questionnaireEvaluationFacade = questionnaireEvaluationFacade;
+ }
+
+ @ApiOperation(httpMethod = "POST",
+ value = "Evaluate answers to a questionnaire phase",
+ nickname = "evaluateAnswersToQuestionnaire",
+ produces = MediaType.APPLICATION_JSON_VALUE
+ )
+ @ApiResponses(value = {
+ @ApiResponse(code = 200, message = "Answers evaluated"),
+ @ApiResponse(code = 500, message = "Unexpected application error")
+ })
+ @PutMapping(value = "/{runId}/questionnaire-evaluation", produces = MediaType.APPLICATION_JSON_VALUE)
+ public ResponseEntity<Void> evaluateAnswersToQuestionnaire(@ApiParam(value = "Training run ID", required = true)
+ @PathVariable("runId") Long runId,
+ @ApiParam(value = "Responses to questionnaire", required = true)
+ @Valid @RequestBody QuestionnairePhaseAnswersDTO questionnairePhaseAnswersDTO) {
+ questionnaireEvaluationFacade.evaluateAnswersToQuestionnaire(runId, questionnairePhaseAnswersDTO);
+ return ResponseEntity.noContent().build();
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswer.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswer.java
new file mode 100644
index 00000000..211b904f
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswer.java
@@ -0,0 +1,32 @@
+package cz.muni.ics.kypo.training.adaptive.domain;
+
+import javax.persistence.EmbeddedId;
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "question_answer")
+public class QuestionAnswer implements Serializable {
+
+ @EmbeddedId
+ private QuestionAnswerId questionAnswerId;
+
+ private String answer;
+
+ public QuestionAnswerId getQuestionAnswerId() {
+ return questionAnswerId;
+ }
+
+ public void setQuestionAnswerId(QuestionAnswerId questionAnswerId) {
+ this.questionAnswerId = questionAnswerId;
+ }
+
+ public String getAnswer() {
+ return answer;
+ }
+
+ public void setAnswer(String answer) {
+ this.answer = answer;
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswerId.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswerId.java
new file mode 100644
index 00000000..d59dff5c
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionAnswerId.java
@@ -0,0 +1,49 @@
+package cz.muni.ics.kypo.training.adaptive.domain;
+
+import javax.persistence.Embeddable;
+import java.io.Serializable;
+import java.util.Objects;
+
+@Embeddable
+public class QuestionAnswerId implements Serializable {
+ private Question question;
+ private Long trainingRunId;
+
+ public QuestionAnswerId() {
+ }
+
+ public QuestionAnswerId(Question question, Long trainingRunId) {
+ this.question = question;
+ this.trainingRunId = trainingRunId;
+ }
+
+ public Question getQuestion() {
+ return question;
+ }
+
+ public void setQuestion(Question question) {
+ this.question = question;
+ }
+
+ public Long getTrainingRunId() {
+ return trainingRunId;
+ }
+
+ public void setTrainingRunId(Long trainingRunId) {
+ this.trainingRunId = trainingRunId;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) return true;
+ if (o == null || getClass() != o.getClass()) return false;
+ QuestionAnswerId that = (QuestionAnswerId) o;
+ return Objects.equals(question, that.question) &&
+ Objects.equals(trainingRunId, that.trainingRunId);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(question, trainingRunId);
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionPhaseResult.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionPhaseResult.java
new file mode 100644
index 00000000..cfc2bf0d
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/domain/QuestionPhaseResult.java
@@ -0,0 +1,61 @@
+package cz.muni.ics.kypo.training.adaptive.domain;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+import javax.persistence.SequenceGenerator;
+import javax.persistence.Table;
+import java.io.Serializable;
+
+@Entity
+@Table(name = "question_phase_result")
+public class QuestionPhaseResult implements Serializable {
+
+ @Id
+ @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "questionPhaseResultGenerator")
+ @SequenceGenerator(name = "questionPhaseResultGenerator", sequenceName = "question_phase_result_seq")
+ @Column(name = "question_phase_result_id", nullable = false, unique = true)
+ private Long id;
+
+ private Long trainingRunId;
+ private int achievedResult;
+
+ @ManyToOne(fetch = FetchType.LAZY)
+ private QuestionPhaseRelation questionPhaseRelation;
+
+ public Long getId() {
+ return id;
+ }
+
+ public void setId(Long id) {
+ this.id = id;
+ }
+
+ public Long getTrainingRunId() {
+ return trainingRunId;
+ }
+
+ public void setTrainingRunId(Long trainingRunId) {
+ this.trainingRunId = trainingRunId;
+ }
+
+ public int getAchievedResult() {
+ return achievedResult;
+ }
+
+ public void setAchievedResult(int achievedResult) {
+ this.achievedResult = achievedResult;
+ }
+
+ public QuestionPhaseRelation getQuestionPhaseRelation() {
+ return questionPhaseRelation;
+ }
+
+ public void setQuestionPhaseRelation(QuestionPhaseRelation questionPhaseRelation) {
+ this.questionPhaseRelation = questionPhaseRelation;
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionAnswerDTO.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionAnswerDTO.java
new file mode 100644
index 00000000..772e2fef
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionAnswerDTO.java
@@ -0,0 +1,31 @@
+package cz.muni.ics.kypo.training.adaptive.dto.run;
+
+import io.swagger.annotations.ApiModelProperty;
+
+import javax.validation.constraints.NotNull;
+
+public class QuestionAnswerDTO {
+
+ @ApiModelProperty(value = "ID of answered question", example = "1")
+ @NotNull(message = "ID of the answered question must not be null")
+ private Long questionId;
+
+ @ApiModelProperty(value = "Answer to the question", example = "An answer")
+ private String answer;
+
+ public Long getQuestionId() {
+ return questionId;
+ }
+
+ public void setQuestionId(Long questionId) {
+ this.questionId = questionId;
+ }
+
+ public String getAnswer() {
+ return answer;
+ }
+
+ public void setAnswer(String answer) {
+ this.answer = answer;
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionnairePhaseAnswersDTO.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionnairePhaseAnswersDTO.java
new file mode 100644
index 00000000..9a4eecd6
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/dto/run/QuestionnairePhaseAnswersDTO.java
@@ -0,0 +1,21 @@
+package cz.muni.ics.kypo.training.adaptive.dto.run;
+
+import io.swagger.annotations.ApiModelProperty;
+
+import javax.validation.Valid;
+import java.util.List;
+
+public class QuestionnairePhaseAnswersDTO {
+
+ @Valid
+ @ApiModelProperty(value = "Answers to the questionnaire provided by user", required = true)
+ private List<QuestionAnswerDTO> answers;
+
+ public List<QuestionAnswerDTO> getAnswers() {
+ return answers;
+ }
+
+ public void setAnswers(List<QuestionAnswerDTO> answers) {
+ this.answers = answers;
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/facade/QuestionnaireEvaluationFacade.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/facade/QuestionnaireEvaluationFacade.java
new file mode 100644
index 00000000..fd657740
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/facade/QuestionnaireEvaluationFacade.java
@@ -0,0 +1,25 @@
+package cz.muni.ics.kypo.training.adaptive.facade;
+
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionAnswer;
+import cz.muni.ics.kypo.training.adaptive.dto.run.QuestionnairePhaseAnswersDTO;
+import cz.muni.ics.kypo.training.adaptive.service.QuestionnaireEvaluationService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class QuestionnaireEvaluationFacade {
+
+ private final QuestionnaireEvaluationService questionnaireEvaluationService;
+
+ @Autowired
+ public QuestionnaireEvaluationFacade(QuestionnaireEvaluationService questionnaireEvaluationService) {
+ this.questionnaireEvaluationService = questionnaireEvaluationService;
+ }
+
+ public void evaluateAnswersToQuestionnaire(Long runId, QuestionnairePhaseAnswersDTO questionnairePhaseAnswersDTO) {
+ List<QuestionAnswer> savedAnswers = questionnaireEvaluationService.saveAnswersToQuestionnaire(runId, questionnairePhaseAnswersDTO);
+ questionnaireEvaluationService.evaluateAnswersToQuestionnaire(runId, savedAnswers);
+ }
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionAnswerRepository.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionAnswerRepository.java
new file mode 100644
index 00000000..2c5e54e8
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionAnswerRepository.java
@@ -0,0 +1,10 @@
+package cz.muni.ics.kypo.training.adaptive.repository;
+
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionAnswer;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionAnswerId;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface QuestionAnswerRepository extends JpaRepository<QuestionAnswer, QuestionAnswerId> {
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseRelationRepository.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseRelationRepository.java
index a79d1229..fac903e2 100644
--- a/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseRelationRepository.java
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseRelationRepository.java
@@ -2,8 +2,16 @@ package cz.muni.ics.kypo.training.adaptive.repository;
import cz.muni.ics.kypo.training.adaptive.domain.QuestionPhaseRelation;
import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;
+import java.util.List;
+import java.util.Set;
+
@Repository
public interface QuestionPhaseRelationRepository extends JpaRepository<QuestionPhaseRelation, Long> {
+
+ @Query("SELECT r FROM QuestionPhaseRelation r INNER JOIN r.questions q WHERE q.id IN :questionIdList")
+ List<QuestionPhaseRelation> findAllByQuestionIdList(@Param("questionIdList") Set<Long> questionIdList);
}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseResultRepository.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseResultRepository.java
new file mode 100644
index 00000000..86c9945d
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/repository/QuestionPhaseResultRepository.java
@@ -0,0 +1,9 @@
+package cz.muni.ics.kypo.training.adaptive.repository;
+
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionPhaseResult;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface QuestionPhaseResultRepository extends JpaRepository<QuestionPhaseResult, Long> {
+}
diff --git a/src/main/java/cz/muni/ics/kypo/training/adaptive/service/QuestionnaireEvaluationService.java b/src/main/java/cz/muni/ics/kypo/training/adaptive/service/QuestionnaireEvaluationService.java
new file mode 100644
index 00000000..c1d70ef7
--- /dev/null
+++ b/src/main/java/cz/muni/ics/kypo/training/adaptive/service/QuestionnaireEvaluationService.java
@@ -0,0 +1,121 @@
+package cz.muni.ics.kypo.training.adaptive.service;
+
+import cz.muni.ics.kypo.training.adaptive.domain.Question;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionAnswer;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionAnswerId;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionChoice;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionPhaseRelation;
+import cz.muni.ics.kypo.training.adaptive.domain.QuestionPhaseResult;
+import cz.muni.ics.kypo.training.adaptive.dto.run.QuestionAnswerDTO;
+import cz.muni.ics.kypo.training.adaptive.dto.run.QuestionnairePhaseAnswersDTO;
+import cz.muni.ics.kypo.training.adaptive.repository.QuestionAnswerRepository;
+import cz.muni.ics.kypo.training.adaptive.repository.QuestionPhaseRelationRepository;
+import cz.muni.ics.kypo.training.adaptive.repository.QuestionPhaseResultRepository;
+import cz.muni.ics.kypo.training.adaptive.repository.QuestionRepository;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+@Service
+@Transactional
+public class QuestionnaireEvaluationService {
+
+ private static final Logger LOG = LoggerFactory.getLogger(QuestionnaireEvaluationService.class);
+
+ private final QuestionRepository questionRepository;
+ private final QuestionAnswerRepository questionAnswerRepository;
+ private final QuestionPhaseRelationRepository questionPhaseRelationRepository;
+ private final QuestionPhaseResultRepository questionPhaseResultRepository;
+
+ @Autowired
+ public QuestionnaireEvaluationService(QuestionRepository questionRepository, QuestionAnswerRepository questionAnswerRepository,
+ QuestionPhaseRelationRepository questionPhaseRelationRepository, QuestionPhaseResultRepository questionPhaseResultRepository) {
+ this.questionRepository = questionRepository;
+ this.questionAnswerRepository = questionAnswerRepository;
+ this.questionPhaseRelationRepository = questionPhaseRelationRepository;
+ this.questionPhaseResultRepository = questionPhaseResultRepository;
+ }
+
+ public List<QuestionAnswer> saveAnswersToQuestionnaire(Long runId, QuestionnairePhaseAnswersDTO questionnairePhaseAnswersDTO) {
+ List<QuestionAnswer> result = new ArrayList<>();
+ for (QuestionAnswerDTO answer : questionnairePhaseAnswersDTO.getAnswers()) {
+ Question question = questionRepository.findById(answer.getQuestionId())
+ .orElseThrow(() -> new RuntimeException("Question was not found"));
+ // TODO throw proper exception once kypo2-training is migrated
+
+ QuestionAnswer questionAnswer = new QuestionAnswer();
+ questionAnswer.setQuestionAnswerId(new QuestionAnswerId(question, runId));
+ questionAnswer.setAnswer(answer.getAnswer());
+
+ questionAnswerRepository.save(questionAnswer);
+ result.add(questionAnswer);
+ }
+
+ return result;
+ }
+
+ public void evaluateAnswersToQuestionnaire(Long runId, List<QuestionAnswer> answers) {
+ if (CollectionUtils.isEmpty(answers)) {
+ return;
+ }
+
+ Set<Long> questionIdList = answers.stream()
+ .map(QuestionAnswer::getQuestionAnswerId)
+ .map(QuestionAnswerId::getQuestion)
+ .map(Question::getId)
+ .collect(Collectors.toSet());
+
+ List<QuestionPhaseRelation> questionPhaseRelations = questionPhaseRelationRepository.findAllByQuestionIdList(questionIdList);
+ for (QuestionPhaseRelation questionPhaseRelation : questionPhaseRelations) {
+ int numberOfCorrectAnswers = 0;
+ if (CollectionUtils.isEmpty(questionPhaseRelation.getQuestions())) {
+ LOG.warn("No questions found for question phase relation {}", questionPhaseRelation.getId());
+ continue;
+ }
+
+ for (Question question : questionPhaseRelation.getQuestions()) {
+ Optional<QuestionAnswer> correspondingAnswer = findCorrespondingAnswer(question.getId(), answers);
+ if (correspondingAnswer.isPresent()) {
+ String answer = correspondingAnswer.get().getAnswer();
+ Optional<QuestionChoice> correspondingQuestionChoice = findCorrespondingQuestionChoice(answer, question.getChoices());
+ if (correspondingQuestionChoice.isPresent() && correspondingQuestionChoice.get().isCorrect()) {
+ numberOfCorrectAnswers++;
+ }
+ } else {
+ LOG.debug("No answer found for question {}. It is assumed as a wrong answer", question.getId());
+ }
+ }
+
+ int achievedResult = numberOfCorrectAnswers * 100 / questionPhaseRelation.getQuestions().size();
+
+ QuestionPhaseResult questionPhaseResult = new QuestionPhaseResult();
+ questionPhaseResult.setAchievedResult(achievedResult);
+ questionPhaseResult.setQuestionPhaseRelation(questionPhaseRelation);
+ questionPhaseResult.setTrainingRunId(runId);
+
+ questionPhaseResultRepository.save(questionPhaseResult);
+ }
+ }
+
+ private Optional<QuestionAnswer> findCorrespondingAnswer(Long questionId, List<QuestionAnswer> answers) {
+ return answers.stream()
+ .filter(a -> Objects.equals(questionId, a.getQuestionAnswerId().getQuestion().getId()))
+ .findFirst();
+ }
+
+ private Optional<QuestionChoice> findCorrespondingQuestionChoice(String answer, List<QuestionChoice> questionChoices) {
+ return questionChoices.stream()
+ .filter(q -> Objects.equals(answer, q.getText()))
+ .findFirst();
+ }
+}
--
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