feat : adds dynamic sort #1571
feat : adds dynamic sort #1571
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WalkthroughThe pull request introduces a more flexible search and pagination mechanism for the animal service. The primary changes involve modifying the Changes
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Actionable comments posted: 3
🧹 Nitpick comments (4)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
20-21: Adjust logging levels for exception messagesUsing
log.infoto log exceptions may not adequately highlight issues that require attention.Consider using
log.warnorlog.errorwhen logging exceptions to ensure they are appropriately flagged.Also applies to: 36-37
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortDto.java (1)
5-6: Add validation annotations toSortDtofieldsAdding validation annotations can help ensure that
fieldanddirectionhave valid values, improving data integrity.Consider adding annotations like
@NotBlankor@NotNullto the fields:private String field; private String direction;For example:
@NotBlank private String field; @NotBlank private String direction;jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java (2)
77-78: Reconsider passingsortas a JSON string in query parametersPassing a JSON string as a query parameter can lead to issues with URL encoding, length limitations, and maintainability.
Consider accepting the
sortparameter as part of the request body or using multiple query parameters to represent sort fields and directions. Alternatively, you can bind thesortparameter directly to aList<SortDto>using Spring's data binding capabilities.
79-80: Simplify annotations for the request body parameterThe use of the fully qualified
@io.swagger.v3.oas.annotations.parameters.RequestBody(required = true)annotation alongside@RequestBodymight be redundant.Consider importing the
RequestBodyannotation from Swagger and using it directly, or verify if both annotations are necessary.
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jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortDto.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java(5 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java(3 hunks)
🔇 Additional comments (1)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java (1)
42-42: Verify the impact of constructor visibility change
Changing the constructor from public to package-private may affect how Spring instantiates the controller, especially if component scanning crosses package boundaries.
Ensure that the controller is correctly instantiated and that this change does not introduce any issues.
...ata-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java
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Actionable comments posted: 3
♻️ Duplicate comments (1)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
76-90:⚠️ Potential issueEnhance sort field validation and security
While the sorting implementation is functional, it requires additional security measures and validation:
- The sort fields should be validated against the actual Animal entity properties
- The implementation should protect against SQL injection via sort field names
Consider implementing a whitelist approach:
+ private static final Set<String> ALLOWED_SORT_FIELDS = + Set.of("id", "name", "species", "age"); // add all valid fields public Window<AnimalResponse> searchAnimals(SearchRequest searchRequest, int pageSize, Long scrollId) { // ... existing code ... if (!CollectionUtils.isEmpty(searchRequest.getSortDtos())) { for (SortRequest sortRequest : searchRequest.getSortDtos()) { + if (!ALLOWED_SORT_FIELDS.contains(sortRequest.getField())) { + throw new IllegalArgumentException("Invalid sort field: " + sortRequest.getField()); + } Sort.Direction direction = "desc" .equalsIgnoreCase(Optional.ofNullable(sortRequest.getDirection()) .orElse("asc")) ? Sort.Direction.DESC : Sort.Direction.ASC; orders.add(new Sort.Order(direction, sortRequest.getField())); } }
🧹 Nitpick comments (7)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (2)
66-74: Add validation for pageSize parameterWhile the method signature change is good, consider adding validation for the
pageSizeparameter to prevent potential issues with extremely large or negative values.public Window<AnimalResponse> searchAnimals(SearchRequest searchRequest, int pageSize, Long scrollId) { + if (pageSize <= 0 || pageSize > 1000) { + throw new IllegalArgumentException("Page size must be between 1 and 1000"); + }
93-94: Consider adding logging for debugging purposesAdd debug logging to help track the constructed specification and sort orders, which will be valuable for troubleshooting.
+ log.debug("Executing search with specification: {} and sort orders: {}", specification, orders); return animalRepository .findAll(specification, PageRequest.of(0, pageSize, Sort.by(orders)), position, Animal.class) .map(animalMapper::toResponse);jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java (1)
3-23: Add missing essential methodsThe class is missing several essential methods that would improve its usability and robustness.
Consider adding:
- A constructor for easier object creation
- toString() for better debugging
- equals() and hashCode() for proper collection usage
public class SortRequest { + public SortRequest() { + } + + public SortRequest(String field, Direction direction) { + this.field = field; + this.direction = direction; + } + // existing code... + + @Override + public String toString() { + return "SortRequest{field='" + field + "', direction=" + direction + '}'; + } + + @Override + public boolean equals(Object o) { + if (this == o) return true; + if (!(o instanceof SortRequest)) return false; + SortRequest that = (SortRequest) o; + return Objects.equals(field, that.field) && direction == that.direction; + } + + @Override + public int hashCode() { + return Objects.hash(field, direction); + }jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java (2)
5-26: Add null safety and essential methodsThe class needs improvements for robustness and usability.
Consider adding:
- List initialization to prevent NPE
- Constructor for easier instantiation
- toString() for debugging
- Validation
public class SearchRequest { + public SearchRequest() { + this.searchCriteriaList = new ArrayList<>(); + this.sortRequests = new ArrayList<>(); + } + + public SearchRequest(List<SearchCriteria> searchCriteriaList, List<SortRequest> sortRequests) { + this.searchCriteriaList = searchCriteriaList != null ? searchCriteriaList : new ArrayList<>(); + this.sortRequests = sortRequests != null ? sortRequests : new ArrayList<>(); + } + private List<SearchCriteria> searchCriteriaList; private List<SortRequest> sortRequests; // existing getters/setters... + + @Override + public String toString() { + return "SearchRequest{" + + "searchCriteria=" + searchCriteriaList + + ", sortRequests=" + sortRequests + + '}'; + } + + public void validate() { + if (sortRequests != null) { + for (SortRequest sort : sortRequests) { + if (sort.getField() == null || sort.getField().trim().isEmpty()) { + throw new IllegalArgumentException("Sort field cannot be empty"); + } + } + } + }
1-26: Consider adding builder patternGiven the number of fields and potential for growth, consider implementing a builder pattern.
public static class Builder { private List<SearchCriteria> searchCriteria = new ArrayList<>(); private List<SortRequest> sortRequests = new ArrayList<>(); public Builder withSearchCriteria(List<SearchCriteria> criteria) { this.searchCriteria.addAll(criteria); return this; } public Builder withSortRequests(List<SortRequest> sorts) { this.sortRequests.addAll(sorts); return this; } public SearchRequest build() { return new SearchRequest(searchCriteria, sortRequests); } }jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java (1)
75-76: Simplify fully qualified annotation and ensure proper importYou're using the fully qualified name
@io.swagger.v3.oas.annotations.parameters.RequestBody. For cleaner code, consider importingRequestBodyfrom Swagger annotations to avoid using the full package name. This enhances readability.Apply this diff to simplify the annotation:
+import io.swagger.v3.oas.annotations.parameters.RequestBody; - @io.swagger.v3.oas.annotations.parameters.RequestBody(required = true) @RequestBody @Valid + @RequestBody(required = true) @Validjpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java (1)
425-433: Typographical error in comment: Double quotes around "Eagle"In the comment explaining the expected animals, there are extra double quotes around
"Eagle":""Eagle"". Please correct it to"Eagle".Apply this diff to fix the typo:
- "$.content.size()", is(6))) // "Elephant", "Penguin", "Crocodile", ""Eagle"", "Whale", "Snake" + "$.content.size()", is(6))) // "Elephant", "Penguin", "Crocodile", "Eagle", "Whale", "Snake"
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📒 Files selected for processing (5)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java(3 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java(3 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java(15 hunks)
🔇 Additional comments (20)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
7-8: LGTM: Import statements are appropriate
The new imports align well with the added functionality for search and sort capabilities.
Also applies to: 13-13
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java (1)
1-26: Verify error handling in service layer
Let's verify how these classes are used in the service layer to ensure proper error handling.
✅ Verification successful
Bean validation and error handling are properly implemented
The verification shows that error handling is adequately addressed:
SearchCriteriahas proper bean validation annotations (@NotNull,@NotBlank,@Size,@Valid) to ensure data integrity- The model classes (
SearchRequest,SearchCriteria,SortRequest) follow a clean design with proper encapsulation - The
SearchCriteriaclass includes comprehensive validation for query operations through theQueryOperatorenum - The implementation includes JSON handling annotations and utility methods for safe value access
No additional error handling is required in the service layer as the validation is handled at the model level through Jakarta Bean Validation.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for usage of SearchRequest and error handling patterns
rg -A 10 "SearchRequest" --type java
# Look for exception handling related to sort/search
rg -A 5 "try.*catch.*SearchRequest|throw.*Exception.*sort" --type java
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#!/bin/bash
# Let's check the implementation of the specification builder and error handling
ast-grep --pattern 'class AnimalEntitySpecification {
$$$
specificationBuilder($$$) {
$$$
}
$$$
}'
# Check for any validation or error handling in the controller layer
ast-grep --pattern 'class AnimalController {
$$$
searchAnimals($$$) {
$$$
}
$$$
}'
# Look for any custom exceptions related to search/sort
rg -l "Exception.*[Ss]earch|Exception.*[Ss]ort" --type java
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fd "SearchCriteria.java|SortRequest.java" --type f --exec cat {}
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jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java (5)
5-5: Importing SearchRequest is appropriate
The addition of the SearchRequest import aligns with the updated method signature and usage.
13-13: Importing ParameterIn for improved API documentation
Including io.swagger.v3.oas.annotations.enums.ParameterIn enhances the API documentation by specifying parameter locations.
68-76: Annotations for method parameters are correctly applied
The use of @Parameter with ParameterIn.QUERY clarifies that pageSize and scrollId are query parameters. The @RequestBody and @Valid annotations on searchRequest ensure proper request validation.
78-78: Method call updated appropriately
The call to animalService.searchAnimals now includes searchRequest, pageSize, and scrollId, matching the updated method signature.
41-41: Visibility change of AnimalController constructor may affect component scanning
Changing the constructor to package-private restricts access to within the package. Ensure that Spring's component scanning and dependency injection mechanisms are not adversely affected by this change.
Run the following script to verify that the AnimalController is properly instantiated:
jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java (13)
83-93: Test payload updated to new SearchRequest format
The JSON payload in shouldSearchAnimals has been updated to include searchCriteriaList, which aligns with the new SearchRequest structure.
149-161: Test payload correctly updated for NE (Not Equal) operator
The JSON payload in shouldReturnResultForNotEqualType uses searchCriteriaList with the NE operator, which is consistent with the new request format.
177-187: Test for non-existent type updated appropriately
The test shouldReturnEmptyResultForNonExistentType has been updated to use the new SearchRequest structure, ensuring correct functionality.
318-329: Test for EQ (Equal) operator is correctly implemented
The payload in shouldReturnResultForEqualOperator uses the EQ operator with the updated request format.
345-355: Test for NE (Not Equal) operator is correctly implemented
The JSON payload reflects the updated structure, and the test asserts the correct number of results.
371-383: Test for IN operator updated correctly
The searchCriteriaList accurately represents the IN operator with multiple values.
398-409: Test for NOT_IN operator is appropriately updated
The payload changes align with the new SearchRequest format for the NOT_IN operator.
450-459: Test for CONTAINS operator updated correctly
The search criteria for the CONTAINS operator are correctly structured.
474-489: Test includes sorting with sortRequests
In shouldReturnResultForStartsWithOperator, the inclusion of sortRequests with a specified direction enhances the test by verifying sorting functionality.
504-513: Test for ENDS_WITH operator is correctly implemented
The payload reflects the ENDS_WITH operator, and the test expects the correct result.
559-576: Test for multiple EQ operators in searchCriteriaList is correct
The shouldReturnResultForAndOperator test correctly uses multiple EQ operators to simulate an AND condition.
593-602: Clarify usage of OR operator in searchCriteriaList
In the shouldReturnResultForOrOperator test, using OR as the queryOperator within a single searchCriteria might not correctly simulate an OR condition across multiple fields or values. Ensure that the backend interprets this correctly.
Please confirm that the OR operator is implemented to handle multiple values within a single criterion as an OR condition. If not, consider restructuring the payload.
Alternatively, you may need to adjust the searchCriteriaList to represent an OR condition across multiple criteria.
117-132:
Potential issue with getLast() method on List<Animal>
In the test, you're using animalResponses.getLast().getId(). The List interface does not have a getLast() method. This will result in a compilation error. Consider using get(animalResponses.size() - 1) to retrieve the last element.
Apply this diff to fix the issue:
- "scrollId",
- String.valueOf(animalResponses.getLast().getId()))
+ "scrollId",
+ String.valueOf(animalResponses.get(animalResponses.size() - 1).getId()))Likely invalid or redundant comment.
| private String field; | ||
| private String direction; | ||
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🛠️ Refactor suggestion
Add validation for sort direction field
The direction field should be constrained to valid sort directions to prevent runtime errors.
Consider using an enum and adding validation:
- private String direction;
+ private Direction direction;
+
+ public enum Direction {
+ ASC, DESC;
+
+ public static Direction fromString(String value) {
+ try {
+ return Direction.valueOf(value.toUpperCase());
+ } catch (IllegalArgumentException e) {
+ throw new IllegalArgumentException("Invalid sort direction. Use ASC or DESC");
+ }
+ }
+ }Committable suggestion skipped: line range outside the PR's diff.
...-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java
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@coderabbitai generate docstrings |
✅ Actions performedDocstrings generation started. |
> [!WARNING] > The [docstrings feature](https://docs.coderabbit.ai/finishing-touches/docstrings) is in [beta](https://docs.coderabbit.ai/early-access/#beta). Docstrings generation was requested by @rajadilipkolli. * #1571 (comment) The following files were modified: * `jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java` * `jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java` * `jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java` * `jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/web/controllers/AnimalController.java` * `jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java`
...ata-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java
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@coderabbitai, how to print the specification here in human readable format?
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@rajadilipkolli, to print the specification in a human-readable format, you can override the toString() method in your Specification implementations. If your EntitySpecification class builds custom Specification instances, you can modify them to include meaningful toString() methods.
Since you're constructing the specification using the search criteria list, another approach is to log the search criteria directly. For example:
log.debug("Executing search with criteria: {} and sort orders: {}", searchRequest.getSearchCriteriaList(), orders);This will output the list of SearchCriteria objects, which should give you a readable representation of the search parameters used.
If you prefer to see the actual predicates or the detailed structure of the specification, you might need to implement a custom method to traverse and display the specification components. However, logging the search criteria or enhancing the toString() method in your specifications is often sufficient for debugging purposes.
Let me know if you need further assistance!
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@coderabbitai, can you please help me to write custom method to traverse and display the specification components.
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@rajadilipkolli, certainly! To write a custom method to traverse and display the components of your JPA Specification, you can create a custom Specification implementation that keeps track of each criterion and provides a human-readable representation.
Here's how you can achieve this:
-
Create a Custom Specification Wrapper:
Define a wrapper class that implements
Specificationand includes a description of the criterion.import org.springframework.data.jpa.domain.Specification; import javax.persistence.criteria.*; public class DescriptiveSpecification<T> implements Specification<T> { private final Specification<T> delegate; private final String description; public DescriptiveSpecification(Specification<T> delegate, String description) { this.delegate = delegate; this.description = description; } @Override public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder criteriaBuilder) { return delegate.toPredicate(root, query, criteriaBuilder); } @Override public String toString() { return description; } // Methods to combine specifications with descriptions public DescriptiveSpecification<T> and(Specification<T> other, String otherDesc) { return new DescriptiveSpecification<>(this.delegate.and(other), "(" + this + " AND " + otherDesc + ")"); } public DescriptiveSpecification<T> or(Specification<T> other, String otherDesc) { return new DescriptiveSpecification<>(this.delegate.or(other), "(" + this + " OR " + otherDesc + ")"); } }
-
Modify Your Specification Builder:
In your
EntitySpecificationclass, modify the builder method to useDescriptiveSpecification.import java.util.List; public class EntitySpecification<T> { public Specification<T> specificationBuilder(List<SearchCriteria> criteriaList, Class<T> clazz) { if (criteriaList == null || criteriaList.isEmpty()) { return null; } DescriptiveSpecification<T> result = null; for (SearchCriteria criteria : criteriaList) { // Create a basic specification for the criterion Specification<T> spec = new CustomSpecification<>(criteria); // Wrap it with a description DescriptiveSpecification<T> descriptiveSpec = new DescriptiveSpecification<>( spec, criteria.toString() ); if (result == null) { result = descriptiveSpec; } else { // Combine specifications with descriptions result = result.and(descriptiveSpec, criteria.toString()); } } return result; } }
-
Ensure
SearchCriteriaHas a MeaningfultoString():public class SearchCriteria { private String key; private String operation; private Object value; // getters and setters @Override public String toString() { return key + " " + operation + " " + value; } }
-
Update Logging in
AnimalService:Now, when you log the specification, it will display a human-readable format.
log.debug("Executing search with specification: {} and sort orders: {}", specification, orders);
This will output something like:
Executing search with specification: (age >= 2 AND type == 'Mammal') and sort orders: [age: DESC] -
Example Usage in
AnimalService:public Window<AnimalResponse> searchAnimals(SearchRequest searchRequest, int pageSize, Long scrollId) { Specification<Animal> specification = animalEntitySpecification.specificationBuilder(searchRequest.getSearchCriteriaList(), Animal.class); // Rest of your code... }
Notes:
-
Custom Specification (
CustomSpecification): Ensure that your individual criterion specifications (CustomSpecification) are correctly implemented to handle eachSearchCriteria. -
Combining Specifications: The
andandormethods inDescriptiveSpecificationhelp maintain the descriptive string as specifications are combined. -
Thread Safety: If your application is multithreaded, consider thread safety when storing and combining descriptions.
This approach allows you to keep your specifications functional while providing insight into the criteria being applied, which is invaluable for debugging complex queries.
Let me know if you need further assistance or any clarification!
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@coderabbitai, can you please create an issue to implement above feature
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@rajadilipkolli, I've created a new GitHub issue to implement the custom method to traverse and display the Specification components as per your request. You can find the issue here: #1574.
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#!/bin/bash
# Create a GitHub issue to implement the custom method to traverse and display Specification components.
gh issue create \
--title "Implement custom method to traverse and display Specification components" \
--body $'As discussed in [PR #1571](https://github.com/rajadilipkolli/my-spring-boot-experiments/pull/1571), we need to implement a custom method to traverse and display the Specification components in a human-readable format. This enhancement will aid in debugging complex queries and improve logging clarity.\n\nRequester: @rajadilipkolli\nPR URL: https://github.com/rajadilipkolli/my-spring-boot-experiments/pull/1571\nComment URL: https://github.com/rajadilipkolli/my-spring-boot-experiments/pull/1571#discussion_r1888852186' \
--assignee rajadilipkolli
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Actionable comments posted: 4
♻️ Duplicate comments (1)
jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java (1)
531-543:⚠️ Potential issueFix numeric values in JSON payload.
The values for the BETWEEN operator are being formatted as strings but should be numbers.
Apply this diff to fix the issue:
- "%d", - "%d" + %d, + %d
🧹 Nitpick comments (11)
jpa/keyset-pagination/boot-data-window-pagination/src/test/resources/logback-test.xml (1)
15-15: LGTM! Consider adding SQL logging for tests.The addition of DEBUG level logging for
com.example.keysetpaginationpackage is appropriate for testing the new dynamic sort functionality.Since this involves database operations with dynamic sorting, consider adding Hibernate SQL logging to help debug query generation:
<logger name="query-logger" level="DEBUG" /> <logger name="com.example.keysetpagination" level="DEBUG" /> + <logger name="org.hibernate.SQL" level="DEBUG" /> + <logger name="org.hibernate.type.descriptor.sql.BasicBinder" level="TRACE" /> </configuration>jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
92-94: Consider adding request tracing for debugging.While the debug logging is helpful, consider adding request tracing to correlate logs across multiple service calls:
log.debug("Executing search [requestId={}] with specification: {} and sort orders: {}", UUID.randomUUID(), specification, orders);jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java (2)
26-29: Improve toString() implementationThe current implementation could be more readable and maintainable.
@Override public String toString() { - return "SortRequest{field='" + field + "', direction=" + direction + '}'; + return String.format("SortRequest{field='%s', direction='%s'}", field, direction); }
31-41: Consider adding @OverRide annotation documentationThe equals and hashCode implementations look correct, but adding documentation would improve maintainability.
+ /** + * Checks equality of SortRequest objects based on field and direction values. + * + * @param o the object to compare with + * @return true if objects are equal, false otherwise + */ @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof SortRequest that)) return false; return Objects.equals(field, that.field) && Objects.equals(direction, that.direction); } + /** + * Generates a hash code based on field and direction values. + * + * @return the hash code + */ @Override public int hashCode() { return Objects.hash(field, direction); }jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java (1)
44-59: LGTM! The implementation is solid but could be enhanced.The exception handler is well-implemented, maintaining consistency with the existing pattern and providing detailed validation error information.
Consider these improvements:
- Add object information to ApiValidationError:
.map(constraintViolation -> new ApiValidationError( - null, + constraintViolation.getRootBeanClass().getSimpleName(), constraintViolation.getPropertyPath().toString(),
- Add consistent problem detail properties across handlers:
problemDetail.setTitle("Constraint Violation"); + problemDetail.setType(URI.create("https://api.boot-data-window-pagination.com/errors/validation")); + problemDetail.setProperty("errorCategory", "Validation"); + problemDetail.setProperty("timestamp", Instant.now()); problemDetail.setProperty("violations", apiValidationErrors);
- Consider extracting common problem detail setup into a utility method:
private ProblemDetail createProblemDetail(HttpStatusCode status, String title, String message, String errorCategory) { ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(status, message); problemDetail.setTitle(title); problemDetail.setType(URI.create("https://api.boot-data-window-pagination.com/errors/" + errorCategory.toLowerCase())); problemDetail.setProperty("errorCategory", errorCategory); problemDetail.setProperty("timestamp", Instant.now()); return problemDetail; }jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java (4)
6-10: Add documentation and consider making fields finalThe class would benefit from JavaDoc documentation explaining its purpose and usage. Additionally, consider:
- Making fields final for immutability
- Adding validation annotations like
@NotNullto enforce constraints+import javax.validation.constraints.NotNull; + +/** + * Encapsulates search criteria and sort requests for dynamic querying. + */ public class SearchRequest { - private List<SearchCriteria> searchCriteriaList; + @NotNull + private final List<SearchCriteria> searchCriteriaList; - private List<SortRequest> sortRequests; + @NotNull + private final List<SortRequest> sortRequests;
12-20: Add constructor documentationThe constructors are well implemented but would benefit from JavaDoc documentation explaining their purpose and parameters.
+ /** + * Constructs a new SearchRequest with empty lists. + */ public SearchRequest() { this.searchCriteriaList = new ArrayList<>(); this.sortRequests = new ArrayList<>(); } + /** + * Constructs a new SearchRequest with the specified criteria and sort requests. + * + * @param searchCriteriaList the list of search criteria, or empty list if null + * @param sortRequests the list of sort requests, or empty list if null + */ public SearchRequest(List<SearchCriteria> searchCriteriaList, List<SortRequest> sortRequests) {
40-43: Fix inconsistent field name in toStringThe toString method uses "searchCriteria" while the field is named "searchCriteriaList".
@Override public String toString() { - return "SearchRequest{" + "searchCriteria=" + searchCriteriaList + ", sortRequests=" + sortRequests + '}'; + return "SearchRequest{" + "searchCriteriaList=" + searchCriteriaList + ", sortRequests=" + sortRequests + '}'; }
6-44: Consider adding request-level validation and utility methodsTo enhance the robustness and usability of this class, consider:
- Adding a
validate()method to ensure the request is valid before processing- Adding utility methods for common operations (e.g.,
addSearchCriteria(),addSortRequest())- Implementing
equals()andhashCode()for proper object comparisonThis would make the class more self-contained and easier to use correctly.
jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java (2)
425-437: Enhance string operator test coverage.The string operator tests (LIKE, CONTAINS, STARTS_WITH, ENDS_WITH) could be improved:
- No tests for case sensitivity
- No tests for special characters
- No tests for empty strings
Consider adding test cases for:
- Case-sensitive vs case-insensitive search
- Special characters in search strings
- Empty or whitespace-only search values
Also applies to: 450-459, 474-489, 504-513
149-161: Enhance negative operator test coverage.The negative operator tests (NE, NOT_IN) could be improved:
- No tests for multiple values with NE
- No tests for empty result sets
- No tests for null values
Consider adding test cases for:
- Multiple values in NOT_IN
- Empty results
- Null value handling
Also applies to: 345-355, 398-409
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📒 Files selected for processing (7)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java(2 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java(3 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java(15 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerTest.java(2 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/resources/logback-test.xml(1 hunks)
🔇 Additional comments (13)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (3)
7-7: LGTM! Import statements are appropriate.
The new imports support the added functionality for dynamic sorting and logging.
Also applies to: 15-16, 26-26
32-32: LGTM! Logger is properly configured.
The logger follows standard SLF4J practices with appropriate naming.
68-71: LGTM! Method signature and specification building.
The method signature change appropriately accommodates the new search request structure, and the specification building is clean.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java (3)
7-8: Convert direction field to enum type
The direction field should be constrained to valid sort directions to prevent runtime errors.
1-42: Verify the impact on existing sort operations
Since this is a new class for handling sort requests, we should verify its integration with existing sort operations.
✅ Verification successful
Based on the search results, I can now generate the final response:
SortRequest class is properly integrated with existing sort operations
The verification shows that the SortRequest class is well-integrated within the keyset-pagination module:
- It's used by
SearchRequestandAnimalServicein the same module - The direction handling aligns with existing patterns in the codebase:
- Uses same "asc"/"desc" direction values as other services
- Follows similar sort direction validation pattern (e.g.,
equalsIgnoreCase(Sort.Direction.ASC.name()))
- The implementation matches the project's sorting conventions where services convert string-based sort directions to Spring's
Sort.Direction
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# Look for potential usage of this new class
echo -e "\nSearching for potential usage of SortRequest..."
rg -l "SortRequest" --type java
# Check for any existing sort direction handling
echo -e "\nChecking existing sort direction handling..."
rg "(?i)(asc|desc|sort.direction)" --type java
Length of output: 66543
5-9: 🛠️ Refactor suggestion
Add class-level documentation and field validation
The class lacks documentation explaining its purpose and usage. Additionally, both fields need proper validation.
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.Pattern;
+
+/**
+ * Represents a sorting request with field name and direction.
+ * Used in search queries to specify the sorting criteria.
+ */
public class SortRequest {
+ @NotBlank(message = "Sort field must not be blank")
private String field;
+ @NotBlank(message = "Sort direction must not be blank")
+ @Pattern(regexp = "^(ASC|DESC)$", message = "Sort direction must be either ASC or DESC")
private String direction;Likely invalid or redundant comment.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java (2)
4-4: LGTM!
The import statement correctly references the Jakarta EE validation package.
44-59: Verify validation annotations in the codebase
Let's ensure that validation annotations are properly set up to trigger this exception handler.
✅ Verification successful
Validation annotations and handlers are properly configured
The codebase shows extensive use of validation annotations (@NotBlank, @NotNull, @Min, @Max, etc.) along with proper controller-level @Validated annotations. The ConstraintViolationException handler in GlobalExceptionHandler will be triggered when these validations fail because:
- Controllers are properly annotated with
@Validated - Request DTOs use validation constraints (
@NotBlank,@NotNull, etc.) - Request parameters are annotated with
@Valid/@Validated
Examples in the same module:
AnimalControlleris annotated with@Validatedand uses@Validon request bodiesAnimalRequestuses@NotBlankconstraintsSearchCriteriauses multiple validation constraints including@NotNull,@NotBlank, and@Size
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echo "Checking for @Validated annotations on classes..."
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@Validated
$$$
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Length of output: 23479
jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java (3)
177-187: LGTM: Empty result test is well implemented.
The test properly verifies both the empty content array and the last page flag.
474-489: Verify sort direction enum values.
The test uses "desc" as sort direction value but doesn't verify other valid values or error cases for invalid values.
Consider adding test cases for:
- Invalid sort direction values
- Default sort direction when not specified
- Multiple sort criteria
Line range hint 83-132: Verify pagination behavior with sorting.
The test verifies basic search functionality but could be enhanced to cover edge cases:
- The second request adds sorting but doesn't verify the sort order of results
- The test assumes there will be exactly 2 results in the first page and 1 in the second
Consider adding assertions for:
- Sort order verification
- Different page sizes
- Empty sort direction (default behavior)
jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerTest.java (2)
22-22: LGTM!
The import is correctly placed and used in the new test methods.
117-146: Verify test coverage for sorting functionality
The PR introduces dynamic sort functionality, but the new tests only cover page size validation. Consider adding tests for:
- Sort direction validation
- Sort field validation
- Multiple sort criteria
Let's check if there are any existing sort-related tests:
Would you like me to help generate additional test cases for the sorting functionality?
| List<Sort.Order> orders = CollectionUtils.isEmpty(searchRequest.getSortRequests()) | ||
| ? Collections.singletonList(new Sort.Order(Sort.Direction.ASC, "id")) | ||
| : searchRequest.getSortRequests().stream() | ||
| .map(sortRequest -> { | ||
| Sort.Direction direction = "desc" | ||
| .equalsIgnoreCase(Optional.ofNullable(sortRequest.getDirection()) | ||
| .orElse("asc")) | ||
| ? Sort.Direction.DESC | ||
| : Sort.Direction.ASC; | ||
| return new Sort.Order(direction, sortRequest.getField()); | ||
| }) | ||
| .toList(); |
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Consider adding field name validation and sanitization.
While the sort implementation effectively uses Java 8+ features, it could benefit from additional security measures:
- Validate sort fields against a whitelist of allowed entity properties
- Sanitize field names to prevent SQL injection
Here's a suggested implementation:
private static final Set<String> ALLOWED_SORT_FIELDS =
Set.of("id", "name", "species", "age"); // add all valid fields
private List<Sort.Order> createSortOrders(List<SortRequest> sortRequests) {
if (CollectionUtils.isEmpty(sortRequests)) {
return Collections.singletonList(new Sort.Order(Sort.Direction.ASC, "id"));
}
return sortRequests.stream()
.map(sortRequest -> {
String field = sortRequest.getField();
if (!ALLOWED_SORT_FIELDS.contains(field)) {
throw new IllegalArgumentException("Invalid sort field: " + field);
}
Sort.Direction direction = "desc"
.equalsIgnoreCase(Optional.ofNullable(sortRequest.getDirection())
.orElse("asc"))
? Sort.Direction.DESC
: Sort.Direction.ASC;
return new Sort.Order(direction, field);
})
.toList();
}
...-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchRequest.java
Show resolved
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| { | ||
| "searchCriteriaList": [ | ||
| { | ||
| "queryOperator": "EQ", | ||
| "field": "type", | ||
| "values": [ | ||
| "Bird" | ||
| ] | ||
| }, | ||
| { | ||
| "queryOperator": "EQ", | ||
| "field": "habitat", | ||
| "values": [ | ||
| "Rainforest" | ||
| ] | ||
| } | ||
| ] | ||
| } |
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💡 Codebase verification
Based on the code analysis, I can now provide the final response:
Complex logical operator combinations need to be implemented
The current implementation has limitations in handling complex logical operations:
- The
specificationBuildermethod only supports AND combinations between criteria (usingcriteriaBuilder::andin the reduce operation) - While there are
ORandANDoperators in theQueryOperatorenum, they only work within a single field's values, not across different fields - There's no support for nested conditions or grouping of conditions
Key findings:
- The
combinePredicatesmethod only handles combining predicates for a single field's values - Multiple search criteria are always combined with AND in
specificationBuilder - No mechanism exists for grouping conditions or specifying precedence
🔗 Analysis chain
Verify complex logical operator combinations.
The AND and OR operator tests only cover simple cases. Consider testing:
- Multiple conditions with mixed operators
- Nested conditions
- Edge cases with empty values
Consider adding test cases for:
- Multiple AND/OR conditions
- Mixed AND/OR operations
- Empty value arrays
Also applies to: 593-602
Let me try a different approach to find the logical operator handling implementation.
Let me search for the implementation of the query builder to understand how operators are handled.
Let me check the implementation of the query operators and how they are handled.
Let me check the complete implementation of the predicate creation to see how logical operators are handled.
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ast-grep --pattern 'queryOperator": "OR" {
$$$
}'
Length of output: 53
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# Search for files containing query operator related code
rg -l "queryOperator" --type java
# Then look for the actual implementation of operator handling
rg "queryOperator" -A 10 --type java
Length of output: 42258
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# Search for query builder or specification related files
rg -l "Specification" --type java
# Look for the implementation of search criteria handling
rg "class.*Specification" -A 20 --type java
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@coderabbitai, can you please help me with support for nested conditions or grouping of conditions
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@rajadilipkolli, I'd be happy to help you implement support for nested conditions or grouping of conditions in your search functionality. Here's how you can achieve this:
-
Extend the Search Criteria Model
Modify your
SearchCriteriato allow for nested criteria. Introduce a new class,CriteriaGroup, which can contain a list ofSearchCriteriaor otherCriteriaGroupinstances, along with a logical operator (ANDorOR) to combine them.public class CriteriaGroup implements SearchCriteria { private QueryOperator operator; // AND or OR private List<SearchCriteria> criteriaList; public CriteriaGroup(QueryOperator operator, List<SearchCriteria> criteriaList) { this.operator = operator; this.criteriaList = criteriaList; } // Getters and setters public QueryOperator getOperator() { return operator; } public void setOperator(QueryOperator operator) { this.operator = operator; } public List<SearchCriteria> getCriteriaList() { return criteriaList; } public void setCriteriaList(List<SearchCriteria> criteriaList) { this.criteriaList = criteriaList; } }
-
Update the QueryOperator Enum
Ensure your
QueryOperatorenum includesANDandORoperators for grouping.public enum QueryOperator { EQ, NE, GT, LT, LIKE, BETWEEN, IN, NOT_IN, CONTAINS, STARTS_WITH, ENDS_WITH, AND, OR }
-
Modify the Specification Builder
Adjust your
SpecificationBuilderto handleCriteriaGroupinstances recursively, building the predicates based on the grouping.private Specification<Animal> buildSpecification(SearchCriteria criteria) { if (criteria instanceof CriteriaGroup) { CriteriaGroup group = (CriteriaGroup) criteria; List<Specification<Animal>> specs = group.getCriteriaList().stream() .map(this::buildSpecification) .collect(Collectors.toList()); Specification<Animal> result = specs.get(0); for (int i = 1; i < specs.size(); i++) { if (group.getOperator() == QueryOperator.AND) { result = result.and(specs.get(i)); } else if (group.getOperator() == QueryOperator.OR) { result = result.or(specs.get(i)); } } return result; } else { // Handle simple SearchCriteria return (root, query, criteriaBuilder) -> { // Existing predicate creation logic }; } }
-
Adjust the API Request Payload
Update your API to accept nested criteria structures. Here's an example of how the JSON payload might look:
{ "searchCriteria": { "operator": "AND", "criteriaList": [ { "operator": "EQ", "field": "type", "values": ["Bird"] }, { "operator": "OR", "criteriaList": [ { "operator": "EQ", "field": "habitat", "values": ["Rainforest"] }, { "operator": "EQ", "field": "habitat", "values": ["Mountains"] } ] } ] } }This represents the logical condition:
(type = 'Bird') AND (habitat = 'Rainforest' OR habitat = 'Mountains') -
Update Controller and Service Layers
Modify your controller and service methods to handle the updated
SearchRequeststructure.-
Controller Method:
@PostMapping("/search") public Window<AnimalResponse> searchAnimals( @RequestParam(defaultValue = "3") int pageSize, @RequestParam(required = false) Long scrollId, @Valid @RequestBody SearchRequest searchRequest) { return animalService.searchAnimals(searchRequest, pageSize, scrollId); }
-
Service Method:
public Window<AnimalResponse> searchAnimals(SearchRequest searchRequest, int pageSize, Long scrollId) { Specification<Animal> specification = buildSpecification(searchRequest.getSearchCriteria()); // Existing logic to perform the search using the specification }
-
-
Recursive Specification Building
Ensure the
buildSpecificationmethod in your service handles recursion properly.private Specification<Animal> buildSpecification(SearchCriteria criteria) { if (criteria instanceof CriteriaGroup) { CriteriaGroup group = (CriteriaGroup) criteria; List<Specification<Animal>> specs = group.getCriteriaList().stream() .map(this::buildSpecification) .collect(Collectors.toList()); Specification<Animal> result = specs.get(0); for (int i = 1; i < specs.size(); i++) { if (group.getOperator() == QueryOperator.AND) { result = result.and(specs.get(i)); } else if (group.getOperator() == QueryOperator.OR) { result = result.or(specs.get(i)); } } return result; } else { // Existing predicate creation logic for simple criteria } }
-
Test Cases
Update your integration tests to cover nested conditions.
@Test void shouldReturnResultForNestedConditions() throws Exception { // Example test for nested conditions this.mockMvc .perform( post("/api/animals/search") .contentType(MediaType.APPLICATION_JSON) .content( """ { "searchCriteria": { "operator": "AND", "criteriaList": [ { "operator": "EQ", "field": "type", "values": ["Bird"] }, { "operator": "OR", "criteriaList": [ { "operator": "EQ", "field": "habitat", "values": ["Rainforest"] }, { "operator": "EQ", "field": "habitat", "values": ["Mountains"] } ] } ] } } """)) .andExpect(status().isOk()) .andExpect(jsonPath("$.content.size()", is(2))) // Should return "Parrot" and "Eagle" .andExpect(jsonPath("$.last", is(true))); }
By implementing these changes, you'll enable your application to handle nested conditions and grouping in search queries, providing more flexibility and power in your filtering capabilities.
Let me know if you need further clarification or assistance!
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@coderabbitai, please create an issue to implement above feature
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@rajadilipkolli, I've created an issue to implement support for nested conditions or grouping of conditions in the search functionality, as requested. You can find it here: #1573.
🔗 Analysis chain
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# Create a new GitHub issue to implement support for nested conditions or grouping of conditions
gh issue create \
--title "Implement Support for Nested Conditions in Search Functionality" \
--body "As requested by @rajadilipkolli, we need to implement support for nested conditions or grouping of conditions in the search functionality.
Pull Request: https://github.com/rajadilipkolli/my-spring-boot-experiments/pull/1571
Comment: https://github.com/rajadilipkolli/my-spring-boot-experiments/pull/1571#discussion_r1888854719" \
--assignee rajadilipkolli
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@rajadilipkolli, certainly! Here's the code for the ISearchCriteria interface that fits into your code:
public interface ISearchCriteria {
// Define any common methods if necessary
}In the context of your application, since we're using instanceof checks to distinguish between SearchCriteria and CriteriaGroup, and the buildSpecification method handles each type differently, the ISearchCriteria interface can remain empty. Its purpose is to serve as a common type for both classes, allowing them to be stored in the same collection (List<ISearchCriteria>).
However, to make the code cleaner and leverage polymorphism, we can define a common method in the interface that each implementing class overrides. This approach eliminates the need for instanceof checks and enhances maintainability.
Enhanced Interface with a Common Method
Let's define a method toSpecification() in the ISearchCriteria interface:
import org.springframework.data.jpa.domain.Specification;
public interface ISearchCriteria {
Specification<Animal> toSpecification();
}Implement toSpecification() in SearchCriteria
import javax.persistence.criteria.Predicate;
public class SearchCriteria implements ISearchCriteria {
private QueryOperator queryOperator;
private String field;
private List<Object> values;
// Constructors, getters, setters
@Override
public Specification<Animal> toSpecification() {
return (root, query, criteriaBuilder) -> {
// Implement predicate creation logic based on queryOperator
Predicate predicate = null;
switch (queryOperator) {
case EQ:
predicate = criteriaBuilder.equal(root.get(field), values.get(0));
break;
case NE:
predicate = criteriaBuilder.notEqual(root.get(field), values.get(0));
break;
case IN:
predicate = root.get(field).in(values);
break;
case NOT_IN:
predicate = criteriaBuilder.not(root.get(field).in(values));
break;
case LIKE:
predicate = criteriaBuilder.like(root.get(field), values.get(0).toString());
break;
case CONTAINS:
predicate = criteriaBuilder.like(root.get(field), "%" + values.get(0) + "%");
break;
case STARTS_WITH:
predicate = criteriaBuilder.like(root.get(field), values.get(0) + "%");
break;
case ENDS_WITH:
predicate = criteriaBuilder.like(root.get(field), "%" + values.get(0));
break;
case BETWEEN:
predicate = criteriaBuilder.between(
root.get(field),
(Comparable) values.get(0),
(Comparable) values.get(1)
);
break;
// Add other operators as needed
default:
throw new UnsupportedOperationException("Operator not supported: " + queryOperator);
}
return predicate;
};
}
}Implement toSpecification() in CriteriaGroup
public class CriteriaGroup implements ISearchCriteria {
private QueryOperator operator; // AND or OR
private List<ISearchCriteria> criteriaList;
// Constructors, getters, setters
@Override
public Specification<Animal> toSpecification() {
List<Specification<Animal>> specs = criteriaList.stream()
.map(ISearchCriteria::toSpecification)
.collect(Collectors.toList());
Specification<Animal> result = specs.get(0);
for (int i = 1; i < specs.size(); i++) {
if (operator == QueryOperator.AND) {
result = result.and(specs.get(i));
} else if (operator == QueryOperator.OR) {
result = result.or(specs.get(i));
} else {
throw new UnsupportedOperationException("Operator not supported in group: " + operator);
}
}
return result;
}
}Update buildSpecification Method in Service
With these implementations, you can simplify your buildSpecification method:
private Specification<Animal> buildSpecification(List<ISearchCriteria> criteriaList) {
Specification<Animal> result = Specification.where(null);
for (ISearchCriteria criteria : criteriaList) {
result = result.and(criteria.toSpecification());
}
return result;
}Controller and Service Adjustments
Ensure your controller and service methods use the updated buildSpecification logic:
Controller Method:
@PostMapping("/search")
public Window<AnimalResponse> searchAnimals(
@RequestParam(defaultValue = "3") int pageSize,
@RequestParam(required = false) Long scrollId,
@Valid @RequestBody SearchRequest searchRequest) {
Specification<Animal> specification = buildSpecification(searchRequest.getSearchCriteriaList());
// Proceed with search using the specification
}Service Method:
public Window<AnimalResponse> searchAnimals(SearchRequest searchRequest, int pageSize, Long scrollId) {
Specification<Animal> specification = buildSpecification(searchRequest.getSearchCriteriaList());
// Use the specification to query the repository
}Validating Your JSON Payload
Your JSON payload is valid with this setup:
{
"searchCriteriaList": [
{
"operator": "AND",
"criteriaList": [
{
"queryOperator": "EQ",
"field": "type",
"values": [
"Bird"
]
},
{
"operator": "OR",
"criteriaList": [
{
"queryOperator": "EQ",
"field": "habitat",
"values": [
"Rainforest"
]
},
{
"queryOperator": "EQ",
"field": "habitat",
"values": [
"Mountains"
]
}
]
}
]
}
]
}Summary
By defining the toSpecification() method in the ISearchCriteria interface and implementing it in both SearchCriteria and CriteriaGroup, you enable each class to handle its own specification creation. This design leverages polymorphism, reduces the need for type checks, and makes your code cleaner and more extensible.
Let me know if you need further assistance or have any questions!
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@coderabbitai, when called with below payload from swagger it is throwing error as
org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver - Resolved [org.springframework.http.converter.HttpMessageConversionException: Type definition error: [simple type, class com.example.keysetpagination.model.query.ISearchCriteria]]
please fix it.
{
"searchCriteriaList": [
{"operator":"AND","criteriaList":[{"queryOperator":"EQ","field":"name","values":["Bird"]}]}
]
}There was a problem hiding this comment.
@rajadilipkolli, the error you're encountering is due to Jackson's inability to deserialize interfaces by default. Since ISearchCriteria is an interface, Jackson doesn't know how to instantiate it when deserializing your JSON payload.
To fix this issue, you need to instruct Jackson on how to handle the polymorphic deserialization of ISearchCriteria. Here's how you can resolve the error:
1. Add Annotations for Polymorphic Deserialization
Add the @JsonTypeInfo and @JsonSubTypes annotations to the ISearchCriteria interface. This tells Jackson how to distinguish between implementations of the interface during deserialization.
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "type"
)
@JsonSubTypes({
@JsonSubTypes.Type(value = SearchCriteria.class, name = "criteria"),
@JsonSubTypes.Type(value = CriteriaGroup.class, name = "group")
})
public interface ISearchCriteria {
// Define any common methods if necessary
}2. Ensure Default Constructors
Jackson requires default (no-argument) constructors for deserialization. Make sure both SearchCriteria and CriteriaGroup have default constructors.
SearchCriteria.java
public class SearchCriteria implements ISearchCriteria {
// Existing fields...
public SearchCriteria() {
// Default constructor
}
// Existing constructors, getters, setters, and methods...
}CriteriaGroup.java
public class CriteriaGroup implements ISearchCriteria {
// Existing fields...
public CriteriaGroup() {
// Default constructor
}
// Existing constructors, getters, setters, and methods...
}3. Modify Your JSON Payload
Include the type property in your JSON payload to indicate which class should be instantiated. Here's your adjusted payload:
{
"searchCriteriaList": [
{
"type": "group",
"operator": "AND",
"criteriaList": [
{
"type": "criteria",
"queryOperator": "EQ",
"field": "name",
"values": ["Bird"]
}
]
}
]
}4. Handle Nested Criteria
When you have nested criteria, ensure each element includes the type property. Here's an example with nested conditions:
{
"searchCriteriaList": [
{
"type": "group",
"operator": "AND",
"criteriaList": [
{
"type": "criteria",
"queryOperator": "EQ",
"field": "type",
"values": ["Bird"]
},
{
"type": "group",
"operator": "OR",
"criteriaList": [
{
"type": "criteria",
"queryOperator": "EQ",
"field": "habitat",
"values": ["Rainforest"]
},
{
"type": "criteria",
"queryOperator": "EQ",
"field": "habitat",
"values": ["Mountains"]
}
]
}
]
}
]
}5. Test the Changes
After making these adjustments, test your API endpoint again using Swagger or another tool. The HttpMessageConversionException should no longer occur, and your search functionality should work as expected.
Explanation
By adding the @JsonTypeInfo and @JsonSubTypes annotations, you're guiding Jackson on how to deserialize the ISearchCriteria interface. The type property in your JSON payload specifies which concrete class (SearchCriteria or CriteriaGroup) should be instantiated for each element.
Note: If you prefer not to include the type property in your JSON payload, you would need to implement a custom deserializer, which adds complexity. Using the annotations is the most straightforward solution.
Let me know if you need any further assistance or if you encounter any other issues!
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@coderabbitai, using Polymorphic Deserialization is working is there any way to default to SearchCriteria if "type": "criteria" is not specified so code becomes backward compatibility
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@rajadilipkolli, yes, you can configure Jackson to default to SearchCriteria when the type property is not specified in your JSON payload. This approach maintains backward compatibility, allowing existing clients to continue working without including the type field.
Here's how you can achieve this:
Adjust the @JsonTypeInfo Annotation
Modify the @JsonTypeInfo annotation in your ISearchCriteria interface to include the defaultImpl attribute:
import com.fasterxml.jackson.annotation.JsonSubTypes;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
@JsonTypeInfo(
use = JsonTypeInfo.Id.NAME,
include = JsonTypeInfo.As.PROPERTY,
property = "type",
defaultImpl = SearchCriteria.class // Set default implementation
)
@JsonSubTypes({
@JsonSubTypes.Type(value = SearchCriteria.class, name = "criteria"),
@JsonSubTypes.Type(value = CriteriaGroup.class, name = "group")
})
public interface ISearchCriteria {
// Define any common methods if necessary
}By specifying defaultImpl = SearchCriteria.class, Jackson will default to using SearchCriteria when the type property is missing in the JSON payload.
Example JSON Payloads
Existing Payloads Without type:
{
"searchCriteriaList": [
{
"queryOperator": "EQ",
"field": "name",
"values": ["Bird"]
}
]
}New Payloads With Nested Criteria:
{
"searchCriteriaList": [
{
"operator": "AND",
"criteriaList": [
{
"queryOperator": "EQ",
"field": "type",
"values": ["Bird"]
},
{
"operator": "OR",
"criteriaList": [
{
"queryOperator": "EQ",
"field": "habitat",
"values": ["Rainforest"]
},
{
"queryOperator": "EQ",
"field": "habitat",
"values": ["Mountains"]
}
]
}
],
"type": "group"
}
]
}In the first payload, the type property is omitted, so Jackson defaults to SearchCriteria. In the second payload, type is specified for the CriteriaGroup, allowing for nested conditions.
Ensure Backward Compatibility
By setting defaultImpl, your API will remain backward compatible:
-
For Existing Clients: They can continue to send requests without the
typeproperty, and the server will interpret them asSearchCriteria. -
For New Features: When nested criteria or groups are needed, clients can include the
typeproperty to specifyCriteriaGroup.
Notes
-
Validation: Ensure that your application can handle cases where a
SearchCriteriamight not contain expected fields due to the deserialization defaults. -
Error Handling: If the JSON structure does not match either class, Jackson will attempt to deserialize it as
SearchCriteria, which may lead to exceptions if the required fields are missing. Be prepared to handle such cases gracefully. -
Testing: Test with various payloads to confirm that deserialization behaves as expected for both old and new clients.
Example with Missing type
Here's an example of the JSON payload you mentioned, without the type property:
{
"searchCriteriaList": [
{
"operator": "AND",
"criteriaList": [
{
"queryOperator": "EQ",
"field": "name",
"values": ["Bird"]
}
]
}
]
}In this case, since the type property is missing, Jackson will default to SearchCriteria, which might not be desirable if the intent was to create a CriteriaGroup. To handle this, you can implement a custom deserializer or adjust your design to require the type property when necessary.
Alternative: Custom Deserializer
If you need more control over the deserialization process, you can create a custom deserializer for ISearchCriteria.
Custom Deserializer Example:
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.*;
import java.io.IOException;
public class ISearchCriteriaDeserializer extends JsonDeserializer<ISearchCriteria> {
@Override
public ISearchCriteria deserialize(JsonParser p, DeserializationContext ctxt)
throws IOException, JsonProcessingException {
ObjectMapper mapper = (ObjectMapper) p.getCodec();
JsonNode node = mapper.readTree(p);
if (node.has("operator") && node.has("criteriaList")) {
// Deserialize as CriteriaGroup
return mapper.treeToValue(node, CriteriaGroup.class);
} else {
// Default to SearchCriteria
return mapper.treeToValue(node, SearchCriteria.class);
}
}
}Register the Deserializer:
Apply the custom deserializer to the ISearchCriteria interface:
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
@JsonDeserialize(using = ISearchCriteriaDeserializer.class)
public interface ISearchCriteria {
// Define any common methods if necessary
}With this custom deserializer, you can infer the type based on the presence of certain properties (operator and criteriaList) and default to SearchCriteria when they are absent.
Summary
-
Using
defaultImpl: Simplifies the configuration, defaults toSearchCriteriawhentypeis missing. -
Custom Deserializer: Provides more flexibility, allows you to infer types based on JSON content without requiring the
typeproperty.
Choose the approach that best fits your needs. If maintaining backward compatibility without requiring clients to add the type property is essential, the defaultImpl option with careful validation may suffice. If you need finer control, the custom deserializer provides that at the cost of additional complexity.
Let me know if you have any questions or need further assistance!
...ination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerTest.java
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| log.debug( | ||
| "Executing search with criteria: {} and sort orders: {}", | ||
| searchRequest.getSearchCriteriaList(), | ||
| orders); |
Check notice
Code scanning / SonarCloud
Logging should not be vulnerable to injection attacks Low
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Actionable comments posted: 0
♻️ Duplicate comments (1)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
79-90:⚠️ Potential issueValidate sort fields to prevent invalid or malicious inputs.
While the sorting implementation is clean and uses modern Java features effectively, it still needs field validation for security.
Previous review suggested implementing a whitelist of allowed sort fields and field name validation. This remains a valid concern.
🧹 Nitpick comments (5)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchCriteria.java (2)
53-60: Consider adding Javadoc for toString methodThe toString implementation follows best practices using StringJoiner and includes all relevant fields. Consider adding a Javadoc comment to document the string format for better maintainability.
Here's a suggested addition:
+ /** + * Returns a string representation of this SearchCriteria. + * Format: SearchCriteria[queryOperator=<operator>, field='<fieldName>', values=<valuesList>] + * + * @return formatted string representation of the search criteria + */ @Override public String toString() {
Line range hint
1-60: Consider making the class immutable for thread safetySince this class represents search criteria that typically shouldn't change after creation, consider making it immutable:
- Make fields final
- Remove setters
- Initialize all fields through constructor
- Make the values list unmodifiable in the constructor
This would improve thread safety and make the class more robust for concurrent usage.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (1)
92-95: Consider implementing a more readable format for specifications.While the logging is helpful, the specification output could be more human-readable. Consider implementing a custom toString() method for specifications as suggested in previous reviews.
This would make debugging easier by providing a clearer view of the search conditions being applied.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java (2)
44-62: LGTM! Consider minor improvements for consistency and maintainability.The implementation correctly handles constraint violations and follows the established pattern. Consider these improvements:
- Extract the type URI to a constant as it's used in multiple handlers
- Consider a more specific error category than "Validation" (e.g., "ConstraintViolation")
class GlobalExceptionHandler { + private static final String BASE_TYPE_URI = "https://api.boot-data-window-pagination.com/errors/"; + @ExceptionHandler(ConstraintViolationException.class) ProblemDetail onException(ConstraintViolationException constraintViolationException) { // ... existing code ... - problemDetail.setType(URI.create("https://api.boot-data-window-pagination.com/errors/validation")); + problemDetail.setType(URI.create(BASE_TYPE_URI + "validation")); - problemDetail.setProperty("errorCategory", "Validation"); + problemDetail.setProperty("errorCategory", "ConstraintViolation"); // ... rest of the code ... }
44-45: Add documentation for the new exception handler.Please add Javadoc to describe:
- The purpose of this handler
- The structure of the response
- Example scenarios when this exception occurs
+ /** + * Handles constraint violation exceptions thrown during request parameter validation. + * + * @param constraintViolationException The exception containing validation failures + * @return A ProblemDetail containing: + * - HTTP 400 status + * - Validation error details including object, field, rejected value, and message + * - Timestamp and error categorization + */ @ExceptionHandler(ConstraintViolationException.class) ProblemDetail onException(ConstraintViolationException constraintViolationException) {
📜 Review details
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Plan: Pro
📒 Files selected for processing (6)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java(2 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchCriteria.java(2 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java(1 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java(3 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java(15 hunks)jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerTest.java(2 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerTest.java
- jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SortRequest.java
- jpa/keyset-pagination/boot-data-window-pagination/src/test/java/com/example/keysetpagination/web/controllers/AnimalControllerIT.java
🔇 Additional comments (4)
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/model/query/SearchCriteria.java (1)
8-8: LGTM!
The StringJoiner import is appropriately placed with other java.util imports.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/services/AnimalService.java (2)
7-7: LGTM! Logger and imports are properly configured.
The new imports and logger initialization follow best practices.
Also applies to: 15-16, 26-26, 32-33
68-71: LGTM! Method signature change improves encapsulation.
The change to use SearchRequest instead of List<SearchCriteria> provides better encapsulation and flexibility for handling both search criteria and sorting parameters.
jpa/keyset-pagination/boot-data-window-pagination/src/main/java/com/example/keysetpagination/config/GlobalExceptionHandler.java (1)
4-4: LGTM!
The import statement correctly references the Jakarta EE validation framework's ConstraintViolationException.
|
Summary by CodeRabbit
New Features
SearchRequestandSortRequestclasses to encapsulate search and sorting parameters.Bug Fixes
Tests
pageSizelimits.toString()method toSearchCriteriafor improved readability.