From 5affdde6f83adb3a7d616958aeada6f6540923e1 Mon Sep 17 00:00:00 2001
From: Dominika Zemanovicova <xzemanov@fi.muni.cz>
Date: Thu, 23 Mar 2023 12:49:19 +0100
Subject: [PATCH] Add QuestionService
---
.../question/QuestionService.java | 61 +++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 application/module-exercise/src/main/java/org/fuseri/moduleexercise/question/QuestionService.java
diff --git a/application/module-exercise/src/main/java/org/fuseri/moduleexercise/question/QuestionService.java b/application/module-exercise/src/main/java/org/fuseri/moduleexercise/question/QuestionService.java
new file mode 100644
index 00000000..f30867aa
--- /dev/null
+++ b/application/module-exercise/src/main/java/org/fuseri/moduleexercise/question/QuestionService.java
@@ -0,0 +1,61 @@
+package org.fuseri.moduleexercise.question;
+
+import jakarta.persistence.EntityNotFoundException;
+import lombok.Getter;
+import org.fuseri.moduleexercise.common.DomainService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * Represent a service for managing Question entities
+ */
+@Service
+public class QuestionService extends DomainService<Question> {
+
+ /**
+ * The repository instance used by this service
+ */
+ @Getter
+ private final QuestionRepository repository;
+
+ /**
+ * Construct a new instance of QuestionService with the specified repository
+ *
+ * @param repository the repository instance to be used by this service
+ */
+ @Autowired
+ public QuestionService(QuestionRepository repository) {
+ this.repository = repository;
+ }
+
+ /**
+ * Retrieve the Question entity with the specified ID
+ *
+ * @param id the ID of the Question entity to retrieve
+ * @return the Question entity with the specified ID
+ * @throws EntityNotFoundException if no Question entity exists with the specified ID
+ */
+ @Transactional(readOnly = true)
+ public Question find(String id) {
+ return repository.findById(id)
+ .orElseThrow(() -> new EntityNotFoundException("Question '" + id + "' not found."));
+ }
+
+ /**
+ * Retrieve a page of Question entities associated with the specified exercise ID
+ *
+ * @param exerciseId the ID of the exercise to retrieve questions for
+ * @param page the page number to retrieve (0-indexed)
+ * @return a page of Question entities associated with the specified exercise ID
+ */
+ @Transactional(readOnly = true)
+ public Page<Question> findByExerciseId(String exerciseId, int page) {
+ return repository.findByExerciseId(
+ exerciseId,
+ PageRequest.of(page, DomainService.DEFAULT_PAGE_SIZE));
+ }
+
+}
--
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