feat : adds pagination #1636
feat : adds pagination #1636
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WalkthroughThis pull request introduces significant enhancements to a Spring Boot R2DBC project, focusing on testing configurations, data handling, and application structure. Key changes include the addition of JaCoCo for code coverage, modifications to the logging levels, improvements in pagination and error handling in data retrieval, and updates to the database schema. The integration tests have been expanded to validate new functionalities, ensuring robust testing practices throughout the application. Changes
Sequence DiagramsequenceDiagram
participant Client
participant WebRouter
participant PostHandler
participant PostRepository
participant CommentRepository
Client->>WebRouter: Request posts
WebRouter->>PostHandler: Route request
PostHandler->>PostRepository: Fetch posts with pagination
PostRepository-->>PostHandler: Return paginated posts
PostHandler->>CommentRepository: Fetch comments by post IDs
CommentRepository-->>PostHandler: Return comments
PostHandler->>Client: Response with posts and comments
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Actionable comments posted: 2
🧹 Nitpick comments (8)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/CommentRepository.java (1)
13-13: Well-designed method for batch comment retrieval!The method follows Spring Data naming conventions and appropriately uses reactive types (Flux) for R2DBC operations. This is a good optimization that will help reduce N+1 query problems when fetching comments for multiple posts.
For optimal performance with this method:
- Consider adding an index on the
post_idcolumn if not already present- Be mindful of the size of the
postIdslist to avoid excessive memory usage or query complexityr2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/PgJsonObjectJsonComponent.java (1)
34-39: Good improvements, with a suggestion for optimizationThe changes look good:
- Using debug level for JSON payload logging is appropriate
- Using try-with-resources ensures proper cleanup of the JsonParser
However, there's room for optimization:
Consider making JsonFactory a static final field since it's thread-safe and reusable:
static class Serializer extends JsonSerializer<Json> { + private static final JsonFactory FACTORY = new JsonFactory(); @Override public void serialize(Json value, JsonGenerator gen, SerializerProvider serializers) throws IOException { var text = value.asString(); log.debug("The raw json value from PostgresSQL JSON type:{}", text); - JsonFactory factory = new JsonFactory(); - try (JsonParser parser = factory.createParser(text)) { + try (JsonParser parser = FACTORY.createParser(text)) { var node = gen.getCodec().readTree(parser); serializers.defaultSerializeValue(node, gen); } } }r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (2)
8-9: Good choice of data types, but consider performance implications.The switch from VARCHAR(255) to TEXT is a good choice for flexible content storage. However, consider the following recommendations:
- For the
titlecolumn, you might want to add a CHECK constraint to prevent extremely long titles that could affect UI rendering:title TEXT NOT NULL CHECK (length(title) <= 500)
- Consider adding an index on
titleif you perform searches on this column, as TEXT fields benefit from specialized indexes like GiST or GIN for full-text search.Also applies to: 11-11
21-21: Consider adding content length validation.While TEXT is appropriate for comment content, consider adding a reasonable maximum length constraint to prevent potential abuse:
content TEXT NOT NULL CHECK (length(content) <= 5000)This helps prevent spam and ensures database performance remains predictable.
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/WebRouterConfig.java (1)
22-39: Consider adding OpenAPI documentationWhile the routes are well-structured, consider enhancing them with OpenAPI documentation using SpringDoc annotations. This would improve API discoverability and make the API contract more explicit.
Example enhancement:
@OpenAPIDefinition( info = @Info( title = "Posts and Comments API", version = "1.0", description = "API for managing posts and comments" ) )r2dbc/boot-r2dbc-json-column/pom.xml (1)
199-241: Consider test execution order strategy.While alphabetical ordering (
runOrder=alphabetical) provides consistency, it might not be optimal for:
- Test independence (tests might inadvertently depend on alphabetical order)
- Early failure detection (critical tests might run later)
Consider using
filesystem(default) orhourlyordering instead, which can help identify timing-dependent test issues.r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (2)
41-42: Remove unnecessary casting to(List<Comment>)The cast to
(List<Comment>)is unnecessary becausecommentsByPost.getOrDefault(post.getId(), List.of())already returns aCollection<Comment>, andList.of()returns an immutable list. If thesetCommentsmethod accepts aCollection<Comment>, you can remove the cast.Apply this diff to remove the unnecessary cast:
- posts.forEach(post -> post.setComments( - (List<Comment>) commentsByPost.getOrDefault(post.getId(), List.of()))); + posts.forEach(post -> post.setComments( + commentsByPost.getOrDefault(post.getId(), List.of())));
63-76: Enhance error handling in theupdatemethodCurrently, the
onErrorResumehandles onlyIllegalArgumentException. Other exceptions, such as database errors or validation exceptions, might not be properly handled and could result in exposing server errors to the client. Consider adding a generic error handler or handling specific exceptions that might occur during the update process to ensure robust error management.
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r2dbc/boot-r2dbc-json-column/pom.xml(2 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/PgJsonObjectJsonComponent.java(2 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/WebRouterConfig.java(2 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/entity/Post.java(2 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java(3 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/CommentRepository.java(1 hunks)r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql(2 hunks)
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🔇 Additional comments (14)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/CommentRepository.java (1)
4-4: LGTM!The List import is correctly added to support the new method parameter.
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/PgJsonObjectJsonComponent.java (1)
24-24: Good improvement on log level!Changing to debug level is more appropriate for JSON payload logging and helps reduce log verbosity in production.
r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (1)
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1-28: Well-structured schema with good practices!The schema demonstrates several good practices:
- Proper use of UUID extension
- Good referential integrity with CASCADE delete
- Audit fields (created_at, updated_at)
- Optimistic locking support (version column)
- JSON support for flexible metadata
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/config/WebRouterConfig.java (3)
3-5: LGTM! Good optimization with proxyBeanMethods=falseThe addition of static imports for media type predicates and the optimization of bean creation by disabling CGLIB proxying are good improvements. This is particularly beneficial since this configuration class doesn't require proxying for method interception.
Also applies to: 16-16
20-21: LGTM! Good encapsulation with package-private visibilityReducing the method visibility to package-private is a good practice for encapsulation since this bean is only used within the Spring context.
22-26: LGTM! Well-structured content negotiationThe addition of explicit media type predicates for both request and response improves the API contract by ensuring proper content negotiation. The consistent use of APPLICATION_JSON across all routes maintains uniformity.
Also applies to: 28-32, 34-39
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/entity/Post.java (4)
9-13: LGTM! Clean and specific imports.The imports are well-organized and follow best practices by using specific imports rather than wildcards.
53-55: Enhance documentation for manual comment population.While the @transient and @Builder.Default annotations are correctly applied, consider adding more detailed documentation about:
- When and how comments are populated
- The relationship with Comment entity
- Performance implications of manual population
Replace the current comment with more detailed documentation:
- private List<Comment> comments = new ArrayList<>(); // This field is transient and will be populated manually + private List<Comment> comments = new ArrayList<>(); // Transient field populated manually via CommentRepository.findAllByPostIdIn() + // for efficient batch loading of comments. Not persisted in the posts table.Let's verify the comment population implementation:
✅ Verification successful
Documentation suggestion aligns with implementation
The review comment's documentation suggestion is accurate but can be even more precise based on the actual implementation:
- private List<Comment> comments = new ArrayList<>(); // This field is transient and will be populated manually + private List<Comment> comments = new ArrayList<>(); // Transient field batch-loaded via CommentRepository.findAllByPostIdIn() + // and grouped by postId. Not persisted in posts table to maintain separation of concerns.🏁 Scripts executed
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40-45: Verify Spring Data auditing configuration.The auditing annotations (@CreatedDate, @LastModifiedDate) are correctly applied, but ensure that auditing is enabled in your configuration.
✅ Verification successful
Auditing is properly configured ✓
The
@EnableR2dbcAuditingannotation is correctly configured inReactiveDataConfig.javaalong with the necessaryReactiveAuditorAwarebean, which will ensure that your@CreatedDateand@LastModifiedDateannotations work as expected.🏁 Scripts executed
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47-49: Verify schema support for optimistic locking.The @Version annotation is correctly applied for optimistic locking. Ensure that the database schema includes the version column with appropriate constraints.
✅ Verification successful
Schema correctly supports optimistic locking
The database schema includes a
versioncolumn of type INTEGER with appropriate NOT NULL constraint and default value of 0, which properly supports the @Version annotation for optimistic locking.🏁 Scripts executed
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r2dbc/boot-r2dbc-json-column/pom.xml (3)
20-30: Well-structured test properties configuration!Good choice of 80% as the minimum coverage threshold - this is a widely accepted industry standard that balances code quality with maintainability.
177-198: Security-conscious Git information exposure!Good practice to:
- Limit exposed Git properties to essential information only
- Handle missing Git directory gracefully
- Generate properties file for runtime access
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5-9: Verify Spring Boot version choice.Using Spring Boot 3.4.1 (milestone version) in production could be risky as it might contain breaking changes or undiscovered issues. Consider using the latest stable version unless there's a specific requirement for this milestone version.
Run this script to check the latest stable version:
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (1)
63-71: Simplify the property update logicManually setting each property can be error-prone and hard to maintain if the
Postentity gains more fields in the future. Consider using a utility method or a mapper to copy properties fromupdatedPosttoexistingPost, excluding immutable or identifier fields.For example, using Spring's
BeanUtils:existingPost -> req.bodyToMono(Post.class).map(updatedPost -> { - existingPost.setTitle(updatedPost.getTitle()); - existingPost.setContent(updatedPost.getContent()); - existingPost.setMetadata(updatedPost.getMetadata()); - existingPost.setStatus(updatedPost.getStatus()); + BeanUtils.copyProperties(updatedPost, existingPost, "id", "comments"); return existingPost; })Ensure that the
copyPropertiesmethod correctly handles all necessary fields and that you exclude any fields that should not be overwritten.
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💡 Codebase verification
Maintain test coverage for business-critical components
The current broad exclusion patterns should be refined as the excluded components contain important business logic:
- DTOs contain core business objects and validations (e.g., CustomerDTO, Orders)
- Configuration classes implement critical security rules and bean configurations
- Exception handlers contain custom business error handling logic
Recommended approach:
- Only exclude application bootstrap classes
- Keep coverage for DTOs, models, and exceptions containing business logic
- Maintain tests for configuration classes implementing business rules
🔗 Analysis chain
Review coverage exclusion patterns.
The current exclusion patterns might be too broad:
<excludes>
<exclude>**/*Application.*</exclude>
<exclude>**/config/**</exclude>
<exclude>**/models/*</exclude>
<exclude>**/dtos/*</exclude>
<exclude>**/exceptions/*</exclude>
<exclude>**/*Constants*</exclude>
</excludes>While it's common to exclude application bootstrap classes, consider:
- Models and DTOs might benefit from coverage to ensure proper initialization and validation
- Exception classes might contain business logic that should be tested
- Configuration classes might contain crucial business rules
Would you like me to help create a more granular exclusion pattern that better balances coverage with maintainability?
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r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java
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Actionable comments posted: 7
🧹 Nitpick comments (10)
r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (4)
8-10: Enhance title validation constraintsWhile the LENGTH check is good, consider adding a constraint to prevent whitespace-only values based on previous successful implementations.
- title TEXT NOT NULL CHECK( - LENGTH(title)<= 500 - ), + title TEXT NOT NULL CHECK( + LENGTH(TRIM(title)) > 0 AND + LENGTH(title) <= 500 + ),
11-11: Add validation for content columnConsider adding the same whitespace validation for the content column to maintain data quality.
- content TEXT NOT NULL, + content TEXT NOT NULL CHECK(LENGTH(TRIM(content)) > 0),
13-13: Consider using ENUM type for statusUsing TEXT for status values allows any string, which could lead to invalid states. Consider using PostgreSQL's ENUM type for better type safety.
- status TEXT DEFAULT 'DRAFT', + status post_status DEFAULT 'DRAFT',Add before the table creation:
CREATE TYPE post_status AS ENUM ('DRAFT', 'PUBLISHED', 'ARCHIVED');
23-23: Add validation for comment contentApply the same whitespace validation pattern to maintain consistency across content columns.
- content TEXT NOT NULL, + content TEXT NOT NULL CHECK(LENGTH(TRIM(content)) > 0),r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (2)
35-58: Robust pagination implementation with efficient comment fetching.The implementation follows best practices:
- Proper parameter extraction with defaults
- Efficient database-level pagination
- Batch fetching of comments for paginated posts
- Structured response using PagedResult
Consider adding parameter validation for negative values.
Add parameter validation:
public Mono<ServerResponse> all(ServerRequest req) { int page = Integer.parseInt(req.queryParam("page").orElse("0")); int size = Integer.parseInt(req.queryParam("size").orElse("10")); + if (page < 0 || size <= 0) { + return ServerResponse.badRequest() + .bodyValue("Page must be >= 0 and size must be > 0"); + } return this.postRepository
75-88: Improved error handling with clear status codes.Good improvements:
- Clear 404 handling for missing posts
- Proper 400 handling for invalid requests
- Efficient control flow using switchIfEmpty
Consider adding logging for error scenarios.
Add error logging:
public Mono<ServerResponse> update(ServerRequest req) { return this.postRepository .findById(UUID.fromString(req.pathVariable("id"))) - .switchIfEmpty(Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, "Post not found"))) + .switchIfEmpty(Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, + String.format("Post not found with id: %s", req.pathVariable("id"))))) .flatMap(existingPost -> req.bodyToMono(Post.class).map(updatedPost -> { existingPost.setTitle(updatedPost.getTitle()); existingPost.setContent(updatedPost.getContent()); existingPost.setMetadata(updatedPost.getMetadata()); existingPost.setStatus(updatedPost.getStatus()); return existingPost; })) .flatMap(this.postRepository::save) .flatMap(post -> noContent().build()) .onErrorResume(IllegalArgumentException.class, e -> { + log.error("Error updating post: {}", e.getMessage()); return ServerResponse.badRequest() .bodyValue(e.getMessage()); }); }r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/ApplicationIntTest.java (3)
14-41: Consider adding edge cases and error scenarios.The test only covers the happy path. Consider adding tests for:
- Empty result set
- Multiple pages
- Invalid page parameters
- Error responses
24-32: Consider making the test data expectations more maintainable.The test has hardcoded expectations (e.g., totalElements=2, hasSize(2)) which could make it brittle. Consider:
- Using test data builders or factories
- Loading test data from fixtures
- Making the expectations relative to the test data setup
35-37: Enhance content validation.The test only verifies that fields are not null. Consider adding assertions for:
- Actual content values
- Data types and formats
- Relationships between fields
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (1)
23-34: Consider non-blocking setup and data verificationThe setup method has a few areas for improvement:
- Using
blockLast()is blocking and could impact test performance- Test data is very basic and might not catch edge cases
- No verification that setup completed successfully
Consider this alternative implementation:
@BeforeEach void setUp() { // Create test data var posts = IntStream.range(1, 21) // Create 20 posts .mapToObj(i -> Post.builder() .title("Test Post " + i) - .content("Content " + i) + .content("Detailed content with special characters: !@#$ " + i) .build()) .collect(Collectors.toList()); // Clear existing data and save new test data - postRepository.deleteAll().thenMany(postRepository.saveAll(posts)).blockLast(); + StepVerifier.create(postRepository.deleteAll() + .thenMany(postRepository.saveAll(posts)) + .collectList()) + .expectNextCount(1) + .verifyComplete(); }
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📒 Files selected for processing (6)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java(3 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/model/response/PagedResult.java(1 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java(1 hunks)r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql(2 hunks)r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/ApplicationIntTest.java(1 hunks)r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java(1 hunks)
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📓 Learnings (4)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java (2)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-11T14:14:45.469Z
Learning: The pagination implementation in Spring WebFlux R2DBC applications should include:
1. Page and size parameters in the request
2. Repository method with Pageable parameter
3. Response with both data and pagination metadata (pageNumber, pageSize, totalElements, totalPages)
4. Efficient fetching of related entities for the paginated results
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:27:36.588Z
Learning: In Spring WebFlux R2DBC applications, proper database-level pagination should use native SQL query with LIMIT and OFFSET clauses, as JPQL-style queries don't translate to efficient SQL pagination. The offset should be calculated as page * size.
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (1)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:53:38.355Z
Learning: Integration tests for paginated endpoints in Spring WebFlux should verify:
1. Default pagination behavior
2. Custom page size and number
3. Response structure including metadata (totalElements, totalPages)
4. Edge cases like out-of-bounds pages
5. Data consistency across pages
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (3)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:53:38.355Z
Learning: Integration tests for paginated endpoints in Spring WebFlux should verify:
1. Default pagination behavior
2. Custom page size and number
3. Response structure including metadata (totalElements, totalPages)
4. Edge cases like out-of-bounds pages
5. Data consistency across pages
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:27:36.588Z
Learning: In Spring WebFlux R2DBC applications, proper database-level pagination should use native SQL query with LIMIT and OFFSET clauses, as JPQL-style queries don't translate to efficient SQL pagination. The offset should be calculated as page * size.
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-11T14:14:45.469Z
Learning: The pagination implementation in Spring WebFlux R2DBC applications should include:
1. Page and size parameters in the request
2. Repository method with Pageable parameter
3. Response with both data and pagination metadata (pageNumber, pageSize, totalElements, totalPages)
4. Efficient fetching of related entities for the paginated results
r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (1)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1632
File: r2dbc/boot-jooq-r2dbc-sample/src/main/resources/db/migration/postgresql/V1__01_init.sql:8-8
Timestamp: 2025-01-10T06:17:49.965Z
Learning: In PostgreSQL, to prevent empty strings or whitespace-only values in text columns, use CHECK constraints with LENGTH(TRIM(column_name)) > 0. This is more robust than just NOT NULL constraint which allows empty strings.
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: Codacy Static Code Analysis
🔇 Additional comments (5)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java (2)
12-12: LGTM! Simplified interface inheritance.The removal of
ReactiveQueryByExampleExecutorstreamlines the interface by removing unused functionality.
21-22: Efficient database-level pagination implementation.The native SQL query with LIMIT and OFFSET ensures proper database-level pagination, improving performance for large datasets.
Let's verify the pagination query execution:
✅ Verification successful
Pagination implementation verified as efficient and unique
The implementation is the only pagination query in the codebase and follows best practices for R2DBC database-level pagination.
🏁 Scripts executed
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r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/model/response/PagedResult.java (2)
7-15: Well-structured pagination response model.The record provides a clean, immutable structure with all necessary pagination metadata. Good use of
@JsonPropertyannotations for boolean fields.
16-26: LGTM! Proper page number handling.The constructor correctly converts Spring's 0-based page numbers to 1-based numbers in the response, which is more intuitive for API consumers.
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/ApplicationIntTest.java (1)
1-12: LGTM! Clean class structure with focused imports.The test class is well-organized and properly extends the base integration test class.
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/ApplicationIntTest.java
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| import org.junit.jupiter.api.Test; | ||
| import org.springframework.core.ParameterizedTypeReference; | ||
|
|
||
| class ApplicationIntTest extends AbstractIntegrationTest { |
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💡 Codebase verification
Add tests for uncovered repository methods
The base test configuration is correct, but test coverage is incomplete:
- Missing tests for title search functionality (findByTitleContains, findByTitleLike)
- Missing tests for pagination methods with custom parameters
- Missing tests for comment-related operations (findByPostId, findAllByPostIdIn)
🔗 Analysis chain
Verify test coverage and base class configuration.
Let's verify the test setup and coverage:
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#!/bin/bash
# Check if AbstractIntegrationTest is properly configured
ast-grep --pattern 'class AbstractIntegrationTest {
$$$
@Autowired
protected WebTestClient webTestClient;
$$$
}'
# Check for other repository methods that might need testing
rg -t java "interface.*Repository.*extends.*R2dbcRepository" -A 10
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# Find AbstractIntegrationTest implementation
fd AbstractIntegrationTest --exec cat {}
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fd ApplicationIntTest --exec cat {}
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@coderabbitai, please help me to write integration tests for Missing tests for title search functionality (findByTitleContains, findByTitleLike) and Missing tests for comment-related operations (findByPostId, findAllByPostIdIn)
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@rajadilipkolli Here are the integration tests for title search and comment operations:
@Test
void willLoadPostsByTitleSearch() {
webTestClient.get()
.uri("/posts?title=Post")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBody(new ParameterizedTypeReference<PagedResult<Post>>() {})
.value(response -> {
assertThat(response).isNotNull();
assertThat(response.data()).isNotNull()
.isNotEmpty()
.hasSize(2);
assertThat(response.totalElements()).isEqualTo(2);
Post firstPost = response.data().get(0);
assertThat(firstPost.getTitle()).contains("Post");
});
}
@Test
void willLoadPostsByTitlePattern() {
webTestClient.get()
.uri("/posts?title=Post%1") // Using wildcard pattern
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBody(new ParameterizedTypeReference<PagedResult<Post>>() {})
.value(response -> {
assertThat(response).isNotNull();
assertThat(response.data()).isNotNull()
.isNotEmpty()
.hasSize(1);
Post matchedPost = response.data().get(0);
assertThat(matchedPost.getTitle()).isEqualTo("Post1");
});
}
@Test
void willLoadCommentsByPostId() {
// First get a post ID
webTestClient.get()
.uri("/posts")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBody(new ParameterizedTypeReference<PagedResult<Post>>() {})
.value(response -> {
Post firstPost = response.data().get(0);
UUID postId = firstPost.getId();
// Then fetch comments for that post
webTestClient.get()
.uri("/posts/" + postId + "/comments")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBodyList(Comment.class)
.value(comments -> {
assertThat(comments).isNotNull()
.isNotEmpty()
.hasSize(4);
Comment firstComment = comments.get(0);
assertThat(firstComment.getPostId()).isEqualTo(postId);
});
});
}
@Test
void willLoadCommentsByMultiplePostIds() {
// First get multiple post IDs
webTestClient.get()
.uri("/posts?size=2")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBody(new ParameterizedTypeReference<PagedResult<Post>>() {})
.value(response -> {
List<UUID> postIds = response.data().stream()
.map(Post::getId)
.toList();
// Then fetch comments for those posts
webTestClient.get()
.uri("/posts/comments?postIds=" + String.join(",", postIds.stream().map(UUID::toString).toList()))
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus().isOk()
.expectBodyList(Comment.class)
.value(comments -> {
assertThat(comments).isNotNull()
.isNotEmpty()
.hasSize(8); // 4 comments per post
assertThat(comments.stream()
.map(Comment::getPostId)
.distinct()
.count()).isEqualTo(2); // Comments belong to 2 different posts
});
});
}These tests cover:
- Searching posts by title using exact match
- Searching posts by title using pattern matching
- Fetching comments for a single post
- Fetching comments for multiple posts
Each test includes assertions to verify:
- Response status
- Data presence and size
- Relationship integrity (comments belonging to correct posts)
- Expected data patterns
Let me know if you need any clarification or have questions about these tests!
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java
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Actionable comments posted: 5
🧹 Nitpick comments (7)
r2dbc/boot-r2dbc-json-column/Dockerfile (3)
1-14: Add security and operational best practicesConsider adding the following best practices:
- Run as non-root user for security
- Expose the application port
- Add health check
Apply these additions:
FROM eclipse-temurin:21.0.5_11-jre-alpine WORKDIR /app +RUN addgroup -S spring && adduser -S spring -G spring +USER spring:spring COPY --from=builder application/dependencies/ ./ COPY --from=builder application/spring-boot-loader/ ./ COPY --from=builder application/snapshot-dependencies/ ./ COPY --from=builder application/application/ ./ +EXPOSE 8080 +HEALTHCHECK --interval=30s --timeout=3s \ + CMD wget -q --spider http://localhost:8080/actuator/health || exit 1 ENTRYPOINT ["java", "org.springframework.boot.loader.launch.JarLauncher"]🧰 Tools
🪛 Hadolint (2.12.0)
[error] 2-2: Use absolute WORKDIR
(DL3000)
[error] 9-9: Use absolute WORKDIR
(DL3000)
1-1: Consider using distroless base imageThe Alpine-based JRE image is good, but Google's distroless images can provide even better security by having minimal attack surface.
Apply this diff to both FROM statements:
-FROM eclipse-temurin:21.0.5_11-jre-alpine +FROM gcr.io/distroless/java21:nonrootAlso applies to: 8-8
14-14: Consider adding JVM tuning parametersThe ENTRYPOINT could benefit from JVM tuning parameters for containerized environments.
Apply this diff:
-ENTRYPOINT ["java", "org.springframework.boot.loader.launch.JarLauncher"] +ENTRYPOINT ["java", \ + "-XX:MaxRAMPercentage=75.0", \ + "-XX:InitialRAMPercentage=50.0", \ + "-Djava.security.egd=file:/dev/./urandom", \ + "org.springframework.boot.loader.launch.JarLauncher"]r2dbc/boot-r2dbc-json-column/docker/docker-compose-app.yml (1)
17-21: Consider increasing the memory limit for the Spring Boot application.The current memory limit of 512M might be insufficient for a Spring Boot application, especially during peak loads or when handling large datasets with R2DBC. Consider increasing it to at least 768M or 1G for better performance and stability.
resources: limits: - memory: 512M + memory: 1G cpus: '1'r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (1)
92-95: Enhance error response structure.Consider using a structured error response for better client handling:
- return ServerResponse.badRequest().bodyValue(e.getMessage()); + var errorResponse = Map.of( + "error", "Bad Request", + "message", e.getMessage(), + "timestamp", System.currentTimeMillis() + ); + return ServerResponse.badRequest().bodyValue(errorResponse);r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (2)
4-9: Well-structured ENUM type creation!Good choice using PostgreSQL ENUM type instead of VARCHAR. This provides:
- Type safety at the database level
- Reduced storage space compared to VARCHAR
- Prevention of invalid status values
Consider documenting the intended lifecycle flow (DRAFT → PUBLISHED → ARCHIVED) in a comment, as it's not immediately obvious if posts can move directly from DRAFT to ARCHIVED.
15-25: Robust text field constraints!Good implementation of text validation:
- Prevents empty or whitespace-only content
- Reasonable title length limits
- Uses TEXT type for better content handling
Consider adding a comment explaining the business rules behind the 500-character title limit for future maintainers.
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📓 Learnings (1)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (3)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-11T14:14:45.469Z
Learning: The pagination implementation in Spring WebFlux R2DBC applications should include:
1. Page and size parameters in the request
2. Repository method with Pageable parameter
3. Response with both data and pagination metadata (pageNumber, pageSize, totalElements, totalPages)
4. Efficient fetching of related entities for the paginated results
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:53:38.355Z
Learning: Integration tests for paginated endpoints in Spring WebFlux should verify:
1. Default pagination behavior
2. Custom page size and number
3. Response structure including metadata (totalElements, totalPages)
4. Edge cases like out-of-bounds pages
5. Data consistency across pages
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:27:36.588Z
Learning: In Spring WebFlux R2DBC applications, proper database-level pagination should use native SQL query with LIMIT and OFFSET clauses, as JPQL-style queries don't translate to efficient SQL pagination. The offset should be calculated as page * size.
🪛 Hadolint (2.12.0)
r2dbc/boot-r2dbc-json-column/Dockerfile
[error] 2-2: Use absolute WORKDIR
(DL3000)
[error] 9-9: Use absolute WORKDIR
(DL3000)
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: Codacy Static Code Analysis
🔇 Additional comments (8)
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/ApplicationIntTest.java (3)
1-12: LGTM! Clean class structure and imports.The class follows integration test best practices by extending
AbstractIntegrationTestand including all necessary imports.
14-42: LGTM! Comprehensive pagination test.The test thoroughly verifies pagination metadata and post content with robust assertions.
14-42: Add test coverage for missing scenarios.While the pagination test is solid, the following test coverage is still needed:
- Title search functionality:
findByTitleContainsfindByTitleLike- Comment-related operations:
findByPostIdfindAllByPostIdIn- Additional pagination scenarios:
- Different page sizes
- Sorting functionality
Let me know if you need help implementing these test cases. I can provide the test implementations as shown in the previous review.
r2dbc/boot-r2dbc-json-column/docker/docker-compose-app.yml (1)
4-4: LGTM! Service name change is appropriate.The new service name
boot-r2dbc-json-columnbetter reflects the service's purpose and follows Docker naming conventions.r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (3)
28-29: LGTM! Well-structured logger implementation.The logger is correctly implemented as a static final field following best practices.
41-62: LGTM! Efficient pagination implementation with proper database-level pagination.The implementation correctly:
- Uses offset-based pagination at the database level
- Efficiently fetches comments only for paginated posts
- Returns a standardized PagedResult response
79-89: LGTM! Robust error handling for post updates.The implementation correctly:
- Checks for post existence with proper 404 handling
- Clearly separates the update flow
- Maintains immutability of the original request object
r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql (1)
27-27: Verify the impact of removing VARCHAR limitsThe change from VARCHAR(255) to TEXT type removes the character limit constraints. While this provides more flexibility, ensure that:
- The application layer has appropriate validation
- The UI can handle displaying longer content
- API responses are properly paginated for large text fields
✅ Verification successful
VARCHAR limit removal is safe due to enum constraints
The status field is properly constrained by a Java enum
Post.Statuswith only three possible values:DRAFT,PENDING_MODERATION, andPUBLISHED. This provides strict validation at the application level, making the removal of VARCHAR limits in the database safe since:
- Only these predefined values can be assigned
- All values are short and fixed-length
- No UI or pagination concerns exist for such limited values
🏁 Scripts executed
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#!/bin/bash # Check if the application has proper validation for text fields rg -A 5 "class.*Post.*{" | rg -A 10 "@Size|@Length|@Column"Length of output: 153
Script:
#!/bin/bash # Find Post entity class and its fields echo "=== Post Entity Class ===" rg -l "class.*Post" --type java echo -e "\n=== Post Status Field and Validation ===" rg -A 10 "status|Status" --type java echo -e "\n=== Validation Configurations ===" rg "@Size|@Length|@Column" --type javaLength of output: 79580
Script:
#!/bin/bash echo "=== Post Entity Implementation ===" cat r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/entity/Post.java echo -e "\n=== Status Field Validation ===" rg -B 5 -A 5 "status.*DRAFT" --type javaLength of output: 4613
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java
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Actionable comments posted: 3
♻️ Duplicate comments (1)
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (1)
78-102:⚠️ Potential issueFix inconsistent page numbering in custom page size test
The test has the same page numbering inconsistency as the default pagination test.
.value(pagedResult -> { assertThat(pagedResult.totalElements()).isEqualTo(20); - assertThat(pagedResult.pageNumber()).isEqualTo(1); + assertThat(pagedResult.pageNumber()).isEqualTo(0); assertThat(pagedResult.totalPages()).isEqualTo(4);
🧹 Nitpick comments (3)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (1)
53-55: Improve error message for maximum page size limit.The error message doesn't mention the maximum page size limit of 50, which could confuse API users.
- throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Page size must be greater than 0"); + throw new ResponseStatusException(HttpStatus.BAD_REQUEST, + "Page size must be between 1 and 50");r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (2)
23-40: Enhance test data setup maintainabilityConsider extracting test data creation to a separate method and improving StepVerifier assertions.
+ private static final int TOTAL_POSTS = 20; + + private List<Post> createTestPosts() { + return IntStream.range(1, TOTAL_POSTS + 1) + .mapToObj(i -> Post.builder() + .title("Test Post " + i) + .content("Content " + i) + .build()) + .collect(Collectors.toList()); + } + @BeforeEach void setUp() { - // Create test data - var posts = IntStream.range(1, 21) // Create 20 posts - .mapToObj(i -> Post.builder() - .title("Test Post " + i) - .content("Content " + i) - .build()) - .collect(Collectors.toList()); + var posts = createTestPosts(); // Clear existing data and save new test data StepVerifier.create(postRepository .deleteAll() .thenMany(postRepository.saveAll(posts)) .collectList()) - .expectNextCount(1) + .expectNext(posts) // Verify exact content .verifyComplete(); }
160-168: Add more invalid parameter test casesConsider adding more test cases for invalid parameters:
- Negative size
- Zero size
- Non-numeric values
@Test void shouldHandleInvalidPageParameters() { + // Test negative page this.webTestClient .get() .uri("/posts?page=-1&size=10") .exchange() .expectStatus() .isBadRequest(); + + // Test negative size + this.webTestClient + .get() + .uri("/posts?page=0&size=-1") + .exchange() + .expectStatus() + .isBadRequest(); + + // Test zero size + this.webTestClient + .get() + .uri("/posts?page=0&size=0") + .exchange() + .expectStatus() + .isBadRequest(); + + // Test non-numeric values + this.webTestClient + .get() + .uri("/posts?page=abc&size=def") + .exchange() + .expectStatus() + .isBadRequest(); }
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r2dbc/boot-r2dbc-json-column/Dockerfile(1 hunks)r2dbc/boot-r2dbc-json-column/docker/docker-compose-app.yml(2 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java(3 hunks)r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java(1 hunks)r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql(2 hunks)r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- r2dbc/boot-r2dbc-json-column/docker/docker-compose-app.yml
- r2dbc/boot-r2dbc-json-column/src/main/resources/db/migration/postgresql/V1__01_schema.sql
- r2dbc/boot-r2dbc-json-column/Dockerfile
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📓 Learnings (3)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java (1)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-11T14:14:45.469Z
Learning: The pagination implementation in Spring WebFlux R2DBC applications should include:
1. Page and size parameters in the request
2. Repository method with Pageable parameter
3. Response with both data and pagination metadata (pageNumber, pageSize, totalElements, totalPages)
4. Efficient fetching of related entities for the paginated results
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (6)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-11T14:14:45.469Z
Learning: The pagination implementation in Spring WebFlux R2DBC applications should include:
1. Page and size parameters in the request
2. Repository method with Pageable parameter
3. Response with both data and pagination metadata (pageNumber, pageSize, totalElements, totalPages)
4. Efficient fetching of related entities for the paginated results
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:40-40
Timestamp: 2025-01-12T07:34:53.917Z
Learning: In Spring WebFlux applications, pagination parameters should be strictly validated by throwing ResponseStatusException with BAD_REQUEST status for negative page numbers and non-positive page sizes, along with descriptive error messages, instead of silently using default values.
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:40-40
Timestamp: 2025-01-12T07:31:47.218Z
Learning: In Spring WebFlux applications with R2DBC, pagination parameters (page and size) should be validated to ensure page is non-negative and size is positive. Default values should be provided (page=0, size=10) when parameters are missing.
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:40-40
Timestamp: 2025-01-12T07:31:47.218Z
Learning: When implementing sorting in Spring WebFlux with R2DBC, the sort direction should be validated to accept only 'ASC' or 'DESC' values, with a default fallback (typically 'DESC'). The sort field should be validated against allowed columns to prevent SQL injection.
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:53:38.355Z
Learning: Integration tests for paginated endpoints in Spring WebFlux should verify:
1. Default pagination behavior
2. Custom page size and number
3. Response structure including metadata (totalElements, totalPages)
4. Edge cases like out-of-bounds pages
5. Data consistency across pages
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:27:36.588Z
Learning: In Spring WebFlux R2DBC applications, proper database-level pagination should use native SQL query with LIMIT and OFFSET clauses, as JPQL-style queries don't translate to efficient SQL pagination. The offset should be calculated as page * size.
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (1)
Learnt from: rajadilipkolli
PR: rajadilipkolli/my-spring-boot-experiments#1636
File: r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java:32-46
Timestamp: 2025-01-12T05:53:38.355Z
Learning: Integration tests for paginated endpoints in Spring WebFlux should verify:
1. Default pagination behavior
2. Custom page size and number
3. Response structure including metadata (totalElements, totalPages)
4. Edge cases like out-of-bounds pages
5. Data consistency across pages
🪛 GitHub Actions: boot-r2dbc-json-column
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java
[error] 192-192: Test failure in shouldHandleMaxPageSize: Status expected:<200 OK> but was:<400 BAD_REQUEST>
[error] 179-181: Test failure in shouldSortPostsByTitleAscending: Posts are not properly sorted. 'Test Post 9' should be less than 'Test Post 10' in ascending order
⏰ Context from checks skipped due to timeout of 90000ms (1)
- GitHub Check: Codacy Static Code Analysis
🔇 Additional comments (8)
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/handler/PostHandler.java (3)
5-28: LGTM! Well-structured imports and logger setup.The new imports and logger setup are appropriate for the enhanced functionality.
66-90: LGTM! Efficient implementation of pagination and comment fetching.The implementation correctly:
- Uses database-level pagination
- Fetches comments for paginated posts only
- Constructs a proper paged response
107-123: LGTM! Robust error handling in update method.The implementation properly handles:
- Not found scenarios with appropriate status code
- Validation errors with logging
- Clean update flow with proper separation of concerns
r2dbc/boot-r2dbc-json-column/src/main/java/com/example/learning/repository/PostRepository.java (2)
12-12: LGTM! Clean interface definitionThe removal of
ReactiveQueryByExampleExecutorsimplifies the interface while maintaining core R2DBC repository functionality.
21-31:⚠️ Potential issueAddress SQL injection vulnerability and improve query performance
The current implementation has several concerns:
- SQL Injection Risk: The
sortByparameter is directly interpolated into the ORDER BY clause without validation- No validation on sort parameters
- Suboptimal query performance due to CASE expressions in ORDER BY
Consider this safer implementation:
@Query( """ - SELECT * FROM posts ORDER BY CASE WHEN :direction = 'ASC' THEN :sortBy END ASC, - CASE WHEN :direction = 'DESC' THEN :sortBy END DESC + SELECT p.* FROM posts p + ORDER BY + CASE :sortBy + WHEN 'id' THEN p.id + WHEN 'title' THEN p.title + WHEN 'content' THEN p.content + WHEN 'created_at' THEN p.created_at + ELSE p.id + END + #{#direction == 'DESC' ? 'DESC' : 'ASC'} LIMIT :size OFFSET :offset """)Additionally, add parameter validation in the service layer:
private void validateSortParams(String sortBy, String direction) { Set<String> validColumns = Set.of("id", "title", "content", "created_at"); if (!validColumns.contains(sortBy)) { throw new IllegalArgumentException("Invalid sort column: " + sortBy); } if (!Set.of("ASC", "DESC").contains(direction.toUpperCase())) { throw new IllegalArgumentException("Invalid sort direction: " + direction); } }Let's verify the current usage:
r2dbc/boot-r2dbc-json-column/src/test/java/com/example/learning/handler/PostHandlerIntTest.java (3)
138-158:⚠️ Potential issueFix out of bounds page handling
The test has several issues:
- Page number should be 10, not 11 (zero-based)
- Empty page should return empty list, not null
- Total pages calculation is incorrect for size=10 and total=20
.value(pagedResult -> { assertThat(pagedResult.totalElements()).isEqualTo(20); - assertThat(pagedResult.pageNumber()).isEqualTo(11); + assertThat(pagedResult.pageNumber()).isEqualTo(10); - assertThat(pagedResult.totalPages()).isEqualTo(2); + assertThat(pagedResult.totalPages()).isEqualTo(3); assertThat(pagedResult.isFirst()).isEqualTo(false); assertThat(pagedResult.isLast()).isEqualTo(true); assertThat(pagedResult.hasNext()).isEqualTo(false); assertThat(pagedResult.hasPrevious()).isEqualTo(true); List<Post> posts = pagedResult.data(); - assertThat(posts).isNull(); + assertThat(posts).isNotNull().isEmpty();Likely invalid or redundant comment.
42-76:⚠️ Potential issueFix inconsistent page numbering in default pagination test
The test asserts page number as 1 but Spring's pagination is zero-based by default.
@Test void shouldReturnDefaultPagination() { this.webTestClient .get() .uri("/posts") .exchange() .expectStatus() .isOk() .expectBody(new ParameterizedTypeReference<PagedResult<Post>>() {}) .value(pagedResult -> { assertThat(pagedResult.totalElements()).isEqualTo(20); - assertThat(pagedResult.pageNumber()).isEqualTo(1); + assertThat(pagedResult.pageNumber()).isEqualTo(0); assertThat(pagedResult.totalPages()).isEqualTo(2); assertThat(pagedResult.isFirst()).isEqualTo(true); assertThat(pagedResult.isLast()).isEqualTo(false); assertThat(pagedResult.hasNext()).isEqualTo(true); assertThat(pagedResult.hasPrevious()).isEqualTo(false); List<Post> posts = pagedResult.data(); assertThat(posts).isNotNull().isNotEmpty().hasSize(10);Likely invalid or redundant comment.
104-136:⚠️ Potential issueFix page numbering and content verification in second page test
The test has incorrect page numbering and content verification:
- For page=1 (second page), pageNumber should be 1, not 2
- Content verification starts from wrong post number
.value(pagedResult -> { assertThat(pagedResult.totalElements()).isEqualTo(20); - assertThat(pagedResult.pageNumber()).isEqualTo(2); + assertThat(pagedResult.pageNumber()).isEqualTo(1); assertThat(pagedResult.totalPages()).isEqualTo(3); assertThat(pagedResult.isFirst()).isEqualTo(false); assertThat(pagedResult.isLast()).isEqualTo(false); assertThat(pagedResult.hasNext()).isEqualTo(true); assertThat(pagedResult.hasPrevious()).isEqualTo(true); List<Post> posts = pagedResult.data(); assertThat(posts).isNotNull().isNotEmpty().hasSize(8); // Verify content assertThat(posts) .extracting(Post::getTitle) .containsExactly( - "Test Post 9", - "Test Post 10", - "Test Post 11", - "Test Post 12", - "Test Post 13", - "Test Post 14", - "Test Post 15", - "Test Post 16" + "Test Post 8", + "Test Post 9", + "Test Post 10", + "Test Post 11", + "Test Post 12", + "Test Post 13", + "Test Post 14", + "Test Post 15" );Likely invalid or redundant comment.
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@coderabbitai , please help me to fill ReadMe file with contents of this repo and sequence diagram |
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Tip For best results, initiate chat on the files or code changes. @rajadilipkolli Here's the README content for your repository: # Spring Boot R2DBC with JSON Column
This project demonstrates a reactive Spring Boot application using R2DBC with PostgreSQL JSON column support. It implements a blog-like system with posts and comments, featuring pagination and reactive endpoints.
## Features
- Reactive REST API using Spring WebFlux
- R2DBC with PostgreSQL for reactive database operations
- JSON column support for flexible data storage
- Flyway database migrations
- Pagination and sorting support
- Docker support with health checks
- Comprehensive test coverage using TestContainers
- Metrics and tracing with Micrometer
## Prerequisites
- JDK 21
- Docker and Docker Compose
- PostgreSQL 15+
## Getting Started
1. Clone the repository
2. Run PostgreSQL using Docker:
```bash
docker-compose -f docker/docker-compose.yml up -d
API Endpoints
ArchitecturesequenceDiagram
participant Client
participant WebRouter
participant PostHandler
participant PostRepository
participant CommentRepository
participant Database
Client->>WebRouter: GET /posts?page=0&size=10
WebRouter->>PostHandler: route to handler
PostHandler->>PostRepository: findAllWithPagination(offset, size, sort, direction)
PostRepository->>Database: Execute query
Database-->>PostRepository: Return posts
PostHandler->>CommentRepository: findAllByPostIdIn(postIds)
CommentRepository->>Database: Execute query
Database-->>CommentRepository: Return comments
PostHandler->>PostHandler: Combine posts with comments
PostHandler-->>Client: Return PagedResult<Post>
Running TestsThe project includes both unit and integration tests using TestContainers: ./mvnw verifyDocker DeploymentBuild and run the application using Docker: ./mvnw spring-boot:build-image
docker-compose -f docker/docker-compose-app.yml up -dMonitoringThe application exposes various actuator endpoints for monitoring:
ConfigurationKey application properties can be configured in
#!/bin/bash Check if README.md exists and get its contentecho "=== README.md content ===" echo -e "\n=== Project structure ===" echo -e "\n=== Dependencies ===" echo -e "\n=== Application properties ===" |
Summary by CodeRabbit
Release Notes
New Features
Improvements
Bug Fixes
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