feat: export csvs #2204
feat: export csvs #2204
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jo-elimu
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2204 +/- ##
============================================
+ Coverage 14.46% 14.48% +0.01%
- Complexity 403 405 +2
============================================
Files 243 245 +2
Lines 6600 6607 +7
Branches 757 754 -3
============================================
+ Hits 955 957 +2
- Misses 5594 5599 +5
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Caution Review failedThe pull request is closed. WalkthroughThis change introduces new Spring MVC controllers for exporting student, letter-sound learning, and word learning event data as CSV, updates the UI to add export buttons and clarify headings, renames and scopes some controllers for consistency and student-specific filtering, removes a legacy controller that synchronized students from event data, and updates the main analytics controller to include counts of students and letter-sound assessment events. It also modifies event grouping granularity from monthly to weekly in the student analytics controller. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Browser
participant StudentsCsvExportController
participant StudentDao
participant HttpServletResponse
User->>Browser: Click "Export to CSV" button
Browser->>StudentsCsvExportController: GET /analytics/students/students.csv
StudentsCsvExportController->>StudentDao: findAll()
StudentDao-->>StudentsCsvExportController: List<Student>
StudentsCsvExportController->>HttpServletResponse: Write CSV output
HttpServletResponse-->>Browser: Return CSV file
sequenceDiagram
participant User
participant Browser
participant LetterSoundLearningEventsCsvExportController
participant StudentDao
participant LetterSoundLearningEventDao
participant HttpServletResponse
User->>Browser: Click "Export letter-sound learning events CSV"
Browser->>LetterSoundLearningEventsCsvExportController: GET /analytics/students/{studentId}/letter-sound-learning-events.csv
LetterSoundLearningEventsCsvExportController->>StudentDao: read(studentId)
StudentDao-->>LetterSoundLearningEventsCsvExportController: Student
LetterSoundLearningEventsCsvExportController->>LetterSoundLearningEventDao: findByAndroidId(student.androidId)
LetterSoundLearningEventDao-->>LetterSoundLearningEventsCsvExportController: List<LetterSoundLearningEvent>
LetterSoundLearningEventsCsvExportController->>HttpServletResponse: Write CSV output
HttpServletResponse-->>Browser: Return CSV file
sequenceDiagram
participant User
participant Browser
participant WordLearningEventsCsvExportController
participant StudentDao
participant WordLearningEventDao
participant HttpServletResponse
User->>Browser: Click "Export word learning events CSV"
Browser->>WordLearningEventsCsvExportController: GET /analytics/students/{studentId}/word-learning-events.csv
WordLearningEventsCsvExportController->>StudentDao: read(studentId)
StudentDao-->>WordLearningEventsCsvExportController: Student
WordLearningEventsCsvExportController->>WordLearningEventDao: findByAndroidId(student.androidId)
WordLearningEventDao-->>WordLearningEventsCsvExportController: List<WordLearningEvent>
WordLearningEventsCsvExportController->>HttpServletResponse: Write CSV output
HttpServletResponse-->>Browser: Return CSV file
Assessment against linked issues
Assessment against linked issues: Out-of-scope changes
Possibly related PRs
Suggested reviewers
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Actionable comments posted: 11
🧹 Nitpick comments (11)
src/main/webapp/WEB-INF/jsp/analytics/students/list.jsp (1)
26-39: CSV export functionality added successfully, but fix the logging message.The export button implementation follows the same pattern as other CSV exports. However, there's a copy-paste error in the console logging.
Fix the console log message:
- console.info('#exportLetterSoundAssessmentEventsToCsvButton click'); + console.info('#exportStudentsToCsvButton click');src/main/java/ai/elimu/web/analytics/students/StudentListController.java (4)
3-5: Remove unused imports.The imports for
StoryBookLearningEventDaoandWordLearningEventDaoare not used in this controller and should be removed.-import ai.elimu.dao.StoryBookLearningEventDao; import ai.elimu.dao.StudentDao; -import ai.elimu.dao.WordLearningEventDao;
3-5: Remove unused imports.The imports for
StoryBookLearningEventDaoandWordLearningEventDaoare not used in this controller.-import ai.elimu.dao.StoryBookLearningEventDao; -import ai.elimu.dao.WordLearningEventDao;
3-5: Remove unused imports.The imports for
StoryBookLearningEventDaoandWordLearningEventDaoare not used in this controller and should be removed to keep the code clean.-import ai.elimu.dao.StoryBookLearningEventDao; import ai.elimu.dao.StudentDao; -import ai.elimu.dao.WordLearningEventDao;
32-34: Consider defensive copying before modifying Student objects.The current implementation directly modifies the
Studentobjects retrieved from the DAO, which could cause unintended side effects if these objects are used elsewhere in the application.Consider creating defensive copies before modification:
for (Student student : students) { - student.setAndroidId(AnalyticsHelper.redactAndroidId(student.getAndroidId())); + String redactedAndroidId = AnalyticsHelper.redactAndroidId(student.getAndroidId()); + student.setAndroidId(redactedAndroidId); }Or better yet, consider using a DTO/view model that contains only the necessary fields for the view layer.
src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java (2)
34-38: Consider avoiding direct entity modification.Modifying the
Studententities directly could cause issues if these are JPA-managed entities. Consider creating a copy of the data for export instead.List<Student> students = studentDao.readAll(); log.info("students.size(): " + students.size()); -for (Student student : students) { - student.setAndroidId(AnalyticsHelper.redactAndroidId(student.getAndroidId())); -}Then modify the CSV writing loop to redact during export:
for (Student student : students) { log.info("student.getId(): " + student.getId()); csvPrinter.printRecord( student.getId(), - student.getAndroidId() + AnalyticsHelper.redactAndroidId(student.getAndroidId()) ); }
36-38: Consider defensive copying before modifying Student objects.Similar to the previous controller, this code directly modifies the
Studentobjects retrieved from the DAO, which could cause unintended side effects.Consider creating defensive copies or using DTOs specifically for CSV export that contain only the necessary fields.
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java (4)
50-51: Remove commented code or add explanation.Consider removing the commented out code for
letter_sound_lettersandletter_sound_soundsfields, or add a comment explaining why they're excluded.If these fields might be needed in the future, consider adding a TODO comment:
.setHeader( "id", "timestamp", "package_name", - // "letter_sound_letters", - // "letter_sound_sounds", + // TODO: Consider adding "letter_sound_letters" and "letter_sound_sounds" fields "letter_sound_id", "additional_data" )Also applies to: 67-68
76-87: Consider extracting common CSV response handling.The CSV response handling code is duplicated between this controller and
StudentsCsvExportController. Consider extracting this into a utility method to follow the DRY principle.You could create a utility method like:
public static void writeCsvResponse(HttpServletResponse response, OutputStream outputStream, String csvContent, String filename) throws IOException { response.setContentType("text/csv"); response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\""); byte[] bytes = csvContent.getBytes(); response.setContentLength(bytes.length); outputStream.write(bytes); outputStream.flush(); }Then both controllers could use this common method.
50-51: Remove commented out code.The commented out code for
letter_sound_lettersandletter_sound_soundsshould be removed to keep the codebase clean.- // "letter_sound_letters", - // "letter_sound_sounds", "letter_sound_id",- // letterSoundLearningEvent.getLetterSoundLetters(), - // letterSoundLearningEvent.getLetterSoundSounds(), letterSoundLearningEvent.getLetterSoundId(),Also applies to: 67-68
65-65: Consider using a more readable timestamp format.The current implementation exports timestamps as milliseconds (
getTimeInMillis()), which produces large numbers that are not human-readable. Consider using a formatted date string instead.+import java.text.SimpleDateFormat; + +// At the class level +private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // In the printRecord call -letterSoundLearningEvent.getTimestamp().getTimeInMillis(), +dateFormat.format(letterSoundLearningEvent.getTimestamp().getTime()),Or use ISO 8601 format for better standardization.
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📒 Files selected for processing (8)
pom-dependency-tree.txt(1 hunks)src/main/java/ai/elimu/web/analytics/students/LetterSoundAssessmentEventsCsvExportController.java(1 hunks)src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java(1 hunks)src/main/java/ai/elimu/web/analytics/students/StudentListController.java(1 hunks)src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java(1 hunks)src/main/java/ai/elimu/web/analytics/students/StudentsListController.java(0 hunks)src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp(2 hunks)src/main/webapp/WEB-INF/jsp/analytics/students/list.jsp(1 hunks)
💤 Files with no reviewable changes (1)
- src/main/java/ai/elimu/web/analytics/students/StudentsListController.java
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🧠 Learnings (1)
src/main/java/ai/elimu/web/analytics/students/LetterSoundAssessmentEventsCsvExportController.java (1)
Learnt from: venkatesh2k3
PR: elimu-ai/webapp#1682
File: src/main/java/ai/elimu/dao/LetterSoundContributionEventDao.java:13-13
Timestamp: 2024-07-06T17:37:44.413Z
Learning: In the `LetterSoundContributionEventDao.java` file, the method signatures should use `LetterSoundContributionEvent` instead of `LetterSoundCorrespondenceContributionEvent` to maintain consistency with the renaming of entities.
🧬 Code Graph Analysis (1)
src/main/java/ai/elimu/web/analytics/students/StudentListController.java (2)
src/main/java/ai/elimu/util/AnalyticsHelper.java (1)
AnalyticsHelper(6-43)src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java (1)
Controller(19-74)
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🔇 Additional comments (10)
pom-dependency-tree.txt (1)
1-1: Version update looks appropriate.The version bump from
2.6.17-SNAPSHOTto2.6.20-SNAPSHOTcorrectly reflects the addition of new CSV export functionality.src/main/java/ai/elimu/web/analytics/students/LetterSoundAssessmentEventsCsvExportController.java (1)
25-25: Good naming consistency improvement.Pluralizing "Event" to "Events" in the class name aligns with the naming conventions used in the related new controllers for CSV exports.
src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp (3)
17-18: Nice UI spacing improvement.Removing the extra blank line and adding the margin-top style improves the visual spacing between sections.
131-131: Good heading clarification.Changing "Assessment events" to "Letter-sound assessment events" makes the section purpose clearer and more specific.
136-148: CSV export functionality implemented correctly.The new export button and JavaScript follow the same pattern as the existing assessment events export, ensuring UI consistency. The toast notification provides good user feedback during CSV preparation.
src/main/java/ai/elimu/web/analytics/students/StudentListController.java (2)
27-38: LGTM! Good implementation with proper security measures.The controller correctly implements the listing functionality with proper Android ID redaction for privacy. The logging and model setup are appropriate.
26-38: LGTM! Clean and straightforward implementation.The controller logic is well-structured and correctly handles student listing with Android ID redaction for privacy. The simplified approach compared to the previous
StudentsListControlleris a good improvement.src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java (2)
34-38: LGTM! Proper data privacy handling.The controller correctly redacts Android IDs before CSV export, maintaining data privacy standards.
40-59: CSV generation logic looks good.The CSV format setup and record writing logic is well-implemented using Apache Commons CSV. The headers are clearly defined and the data mapping is straightforward.
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java (1)
50-51: Clarify the purpose of commented-out fields.The CSV headers and printRecord calls have commented-out fields for
letter_sound_lettersandletter_sound_sounds. This suggests either incomplete implementation or uncertainty about the data structure.Please clarify:
- Are these fields intentionally excluded from the export?
- Should they be included in future iterations?
- Can the commented code be removed if these fields are not needed?
Consider either implementing these fields or removing the commented code to keep the codebase clean.
Also applies to: 67-68
| response.setContentType("text/csv"); | ||
| byte[] bytes = csvFileContent.getBytes(); | ||
| response.setContentLength(bytes.length); | ||
| try { | ||
| outputStream.write(bytes); | ||
| outputStream.flush(); | ||
| outputStream.close(); | ||
| } catch (IOException ex) { | ||
| log.error(ex.getMessage()); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add Content-Disposition header and improve resource management.
Consider these improvements for better file download behavior and resource management:
response.setContentType("text/csv");
+response.setHeader("Content-Disposition", "attachment; filename=\"students.csv\"");
byte[] bytes = csvFileContent.getBytes();
response.setContentLength(bytes.length);
-try {
- outputStream.write(bytes);
- outputStream.flush();
- outputStream.close();
-} catch (IOException ex) {
- log.error(ex.getMessage());
-}
+outputStream.write(bytes);
+outputStream.flush();The Content-Disposition header ensures the browser treats this as a file download. Also, since the method already declares throws IOException, let the exception propagate instead of catching and continuing.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| response.setContentType("text/csv"); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| response.setContentType("text/csv"); | |
| response.setHeader("Content-Disposition", "attachment; filename=\"students.csv\""); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| outputStream.write(bytes); | |
| outputStream.flush(); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java
around lines 63 to 72, add a Content-Disposition header to the response to
specify the filename and prompt the browser to download the CSV file. Remove the
try-catch block around outputStream operations and let the IOException propagate
as declared by the method signature. Also, ensure proper resource management by
using a try-with-resources statement or closing the outputStream in a finally
block if applicable.
| Student student = studentDao.read(studentId); | ||
| log.info("student.getAndroidId(): " + student.getAndroidId()); | ||
|
|
||
| List<LetterSoundLearningEvent> letterSoundLearningEvents = letterSoundLearningEventDao.readAll(student.getAndroidId()); |
There was a problem hiding this comment.
Add null check for student lookup.
The code doesn't handle the case where a student with the given ID doesn't exist, which could result in a NullPointerException.
Student student = studentDao.read(studentId);
+if (student == null) {
+ log.warn("Student not found with ID: " + studentId);
+ response.sendError(HttpServletResponse.SC_NOT_FOUND, "Student not found");
+ return;
+}
log.info("student.getAndroidId(): " + student.getAndroidId());📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); | |
| List<LetterSoundLearningEvent> letterSoundLearningEvents = letterSoundLearningEventDao.readAll(student.getAndroidId()); | |
| Student student = studentDao.read(studentId); | |
| if (student == null) { | |
| log.warn("Student not found with ID: " + studentId); | |
| response.sendError(HttpServletResponse.SC_NOT_FOUND, "Student not found"); | |
| return; | |
| } | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); | |
| List<LetterSoundLearningEvent> letterSoundLearningEvents = | |
| letterSoundLearningEventDao.readAll(student.getAndroidId()); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
around lines 39 to 42, add a null check after retrieving the student with
studentDao.read(studentId). If the student is null, handle this case
appropriately, such as logging a warning and returning early or throwing a
controlled exception, to prevent a NullPointerException when accessing
student.getAndroidId().
| response.setContentType("text/csv"); | ||
| byte[] bytes = csvFileContent.getBytes(); | ||
| response.setContentLength(bytes.length); | ||
| try { | ||
| outputStream.write(bytes); | ||
| outputStream.flush(); | ||
| outputStream.close(); | ||
| } catch (IOException ex) { | ||
| log.error(ex.getMessage()); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add Content-Disposition header for proper file download.
Similar to the other CSV controller, add the Content-Disposition header to ensure proper file download behavior.
response.setContentType("text/csv");
+response.setHeader("Content-Disposition", "attachment; filename=\"letter-sound-learning-events-" + studentId + ".csv\"");
byte[] bytes = csvFileContent.getBytes();
response.setContentLength(bytes.length);
-try {
- outputStream.write(bytes);
- outputStream.flush();
- outputStream.close();
-} catch (IOException ex) {
- log.error(ex.getMessage());
-}
+outputStream.write(bytes);
+outputStream.flush();📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| response.setContentType("text/csv"); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| response.setContentType("text/csv"); | |
| response.setHeader( | |
| "Content-Disposition", | |
| "attachment; filename=\"letter-sound-learning-events-" + studentId + ".csv\"" | |
| ); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| outputStream.write(bytes); | |
| outputStream.flush(); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
around lines 78 to 87, the HTTP response is missing the Content-Disposition
header, which is necessary for proper file download behavior. Add a
Content-Disposition header to the response with a value like "attachment;
filename=\"filename.csv\"" to prompt the browser to download the CSV file
instead of displaying it inline.
| try { | ||
| outputStream.write(bytes); | ||
| outputStream.flush(); | ||
| outputStream.close(); | ||
| } catch (IOException ex) { | ||
| log.error(ex.getMessage()); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve exception handling and resource management.
The current exception handling has several issues:
- When an IOException occurs, only logging happens but the response may be incomplete
- Manually closing the
outputStreamis typically handled by Spring's framework - Consider adding a filename header for better user experience
+ response.setHeader("Content-Disposition", "attachment; filename=\"students.csv\"");
response.setContentType("text/csv");
byte[] bytes = csvFileContent.getBytes();
response.setContentLength(bytes.length);
- try {
- outputStream.write(bytes);
- outputStream.flush();
- outputStream.close();
- } catch (IOException ex) {
- log.error(ex.getMessage());
- }
+ outputStream.write(bytes);
+ outputStream.flush();📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| response.setHeader("Content-Disposition", "attachment; filename=\"students.csv\""); | |
| response.setContentType("text/csv"); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| outputStream.write(bytes); | |
| outputStream.flush(); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java
around lines 66 to 72, improve exception handling by ensuring the response is
properly completed or an error status is set when an IOException occurs instead
of just logging the error. Remove manual closing of the outputStream to let
Spring manage it automatically. Also, add a Content-Disposition header with a
filename to the response to prompt the user to download the CSV file with a
meaningful name.
🛠️ Refactor suggestion
Improve error handling for IOException.
The current implementation catches IOException but only logs the error message. This might mask errors from the caller and doesn't provide proper feedback if the CSV export fails.
Consider re-throwing the exception or at least including it in the log:
try {
outputStream.write(bytes);
outputStream.flush();
outputStream.close();
} catch (IOException ex) {
- log.error(ex.getMessage());
+ log.error("Failed to write CSV output", ex);
+ throw ex;
}Alternatively, since the method already declares throws IOException, you could remove the try-catch block entirely and let the exception propagate naturally.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error("Failed to write CSV output", ex); | |
| throw ex; | |
| } |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/StudentsCsvExportController.java
around lines 66 to 72, the IOException is caught but only the error message is
logged, which hides the exception from the caller and reduces error visibility.
To fix this, either remove the try-catch block entirely to let the IOException
propagate as the method declares it throws IOException, or if you keep the
try-catch, re-throw the exception after logging it or include the full exception
in the log to provide better error context.
| ) throws IOException { | ||
| log.info("handleRequest"); | ||
|
|
||
| Student student = studentDao.read(studentId); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add null check for student entity.
The controller should handle the case where a student with the given ID doesn't exist.
Student student = studentDao.read(studentId);
+ if (student == null) {
+ response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+ return;
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| Student student = studentDao.read(studentId); | |
| if (student == null) { | |
| response.setStatus(HttpServletResponse.SC_NOT_FOUND); | |
| return; | |
| } |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
at line 39, add a null check after retrieving the student entity with
studentDao.read(studentId). If the student is null, handle this case
appropriately by either returning an error response or throwing a suitable
exception to prevent further processing with a null student.
🛠️ Refactor suggestion
Add null check for student.
The code doesn't handle the case where studentDao.read(studentId) returns null. This could lead to a NullPointerException if the student ID doesn't exist.
Student student = studentDao.read(studentId);
+if (student == null) {
+ log.warn("Student not found with ID: " + studentId);
+ response.sendError(HttpServletResponse.SC_NOT_FOUND, "Student not found");
+ return;
+}
log.info("student.getAndroidId(): " + student.getAndroidId());📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| Student student = studentDao.read(studentId); | |
| if (student == null) { | |
| log.warn("Student not found with ID: " + studentId); | |
| response.sendError(HttpServletResponse.SC_NOT_FOUND, "Student not found"); | |
| return; | |
| } | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
at line 39, add a null check after calling studentDao.read(studentId) to handle
the case when it returns null. If the student is null, handle it appropriately
by either returning an error response or throwing a meaningful exception to
prevent a NullPointerException later in the code.
| Student student = studentDao.read(studentId); | ||
| log.info("student.getAndroidId(): " + student.getAndroidId()); |
There was a problem hiding this comment.
Fix privacy issue: Android ID logged without redaction.
The Android ID is being logged directly without redaction, which could compromise user privacy.
- log.info("student.getAndroidId(): " + student.getAndroidId());
+ log.info("student.getAndroidId(): " + AnalyticsHelper.redactAndroidId(student.getAndroidId()));📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); | |
| Student student = studentDao.read(studentId); | |
| log.info("student.getAndroidId(): " + AnalyticsHelper.redactAndroidId(student.getAndroidId())); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
around lines 39 to 40, the Android ID of the student is logged directly, which
poses a privacy risk. Modify the log statement to redact or mask the Android ID
before logging it, for example by replacing part of it with asterisks or only
logging a hash or partial value, to prevent exposing sensitive user information.
Security concern: Avoid logging unredacted Android IDs.
The code logs the actual Android ID without redaction, which could expose sensitive user data in log files. Consider redacting the Android ID before logging or removing this log statement entirely.
-log.info("student.getAndroidId(): " + student.getAndroidId());
+log.info("student.getAndroidId(): " + AnalyticsHelper.redactAndroidId(student.getAndroidId()));Or simply remove the log statement if it's not essential for debugging.
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
at lines 39-40, the code logs the full Android ID, which is sensitive
information. To fix this, either remove the log statement entirely if it is not
necessary, or redact the Android ID by masking part of it before logging to
avoid exposing sensitive user data.
| try { | ||
| outputStream.write(bytes); | ||
| outputStream.flush(); | ||
| outputStream.close(); | ||
| } catch (IOException ex) { | ||
| log.error(ex.getMessage()); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve exception handling and add filename header.
Similar to the students CSV controller, this has exception handling and resource management issues.
+ response.setHeader("Content-Disposition", "attachment; filename=\"student-" + studentId + "-letter-sound-learning-events.csv\"");
response.setContentType("text/csv");
byte[] bytes = csvFileContent.getBytes();
response.setContentLength(bytes.length);
- try {
- outputStream.write(bytes);
- outputStream.flush();
- outputStream.close();
- } catch (IOException ex) {
- log.error(ex.getMessage());
- }
+ outputStream.write(bytes);
+ outputStream.flush();📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| response.setHeader( | |
| "Content-Disposition", | |
| "attachment; filename=\"student-" + studentId + "-letter-sound-learning-events.csv\"" | |
| ); | |
| response.setContentType("text/csv"); | |
| byte[] bytes = csvFileContent.getBytes(); | |
| response.setContentLength(bytes.length); | |
| outputStream.write(bytes); | |
| outputStream.flush(); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
around lines 81 to 87, improve exception handling by logging the full exception
stack trace instead of just the message, and ensure proper resource management
by using try-with-resources or explicitly closing the outputStream in a finally
block. Additionally, add a Content-Disposition header to the response to specify
the filename for the CSV download, similar to the students CSV controller.
🛠️ Refactor suggestion
Improve error handling for IOException.
Same issue as in the previous controller - the IOException is caught and logged but not properly handled.
Consider the same improvement as suggested for StudentsCsvExportController:
try {
outputStream.write(bytes);
outputStream.flush();
outputStream.close();
} catch (IOException ex) {
- log.error(ex.getMessage());
+ log.error("Failed to write CSV output", ex);
+ throw ex;
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| log.error(ex.getMessage()); | |
| } | |
| try { | |
| outputStream.write(bytes); | |
| outputStream.flush(); | |
| outputStream.close(); | |
| } catch (IOException ex) { | |
| - log.error(ex.getMessage()); | |
| + log.error("Failed to write CSV output", ex); | |
| + throw ex; | |
| } |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/LetterSoundLearningEventsCsvExportController.java
around lines 81 to 87, the IOException caught during outputStream operations is
only logged but not properly handled. Modify the catch block to handle the
exception more robustly by logging the full stack trace and rethrowing a runtime
exception or returning an appropriate error response to ensure the failure is
not silently ignored.
There was a problem hiding this comment.
Actionable comments posted: 9
🧹 Nitpick comments (4)
src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java (1)
3-9: Remove unused import and verify entity usage.The import
ai.elimu.entity.analytics.LetterSoundLearningEventappears to be unused in this controller class.-import ai.elimu.entity.analytics.LetterSoundLearningEvent;src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java (2)
32-43: Incomplete implementation - offer assistance to complete the feature.The method currently throws
NotImplementedExceptionand doesn't provide the CSV export functionality. The commented code shows the intended implementation structure.Would you like me to help implement the complete CSV export functionality for word assessment events?
3-3: Remove or implement commented imports and dependencies.The commented imports and DAO dependency suggest this controller is a work-in-progress. Consider either removing the commented code or implementing the functionality to avoid confusion.
-// import ai.elimu.dao.WordAssessmentEventDao; -// import ai.elimu.entity.analytics.WordAssessmentEvent; - -// private final WordAssessmentEventDao wordAssessmentEventDao;Also applies to: 5-5, 30-30
src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java (1)
68-69: Review the word ID fallback logic.The ternary operator uses
0as a fallback whenwordLearningEvent.getWord()is null. Consider whether0is an appropriate fallback value or ifnullor an empty string would be more semantically correct for CSV export.The GitHub issue comment suggests this is related to ongoing work. Consider using a more explicit null representation:
-(wordLearningEvent.getWord() != null) ? wordLearningEvent.getWord().getId() : 0, +(wordLearningEvent.getWord() != null) ? wordLearningEvent.getWord().getId() : "",Or keep the current approach if
0represents "no associated word" in your domain model.
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📒 Files selected for processing (9)
src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java(3 hunks)src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java(1 hunks)src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java(3 hunks)src/main/webapp/WEB-INF/jsp/analytics/main.jsp(1 hunks)src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp(2 hunks)src/main/webapp/WEB-INF/jsp/analytics/word-learning-event/list.jsp(0 hunks)src/test/java/selenium/analytics/MainAnalyticsPage.java(0 hunks)src/test/java/selenium/analytics/WordLearningEventsPage.java(0 hunks)src/test/java/selenium/analytics/WordLearningEventsPageTest.java(0 hunks)
💤 Files with no reviewable changes (4)
- src/test/java/selenium/analytics/MainAnalyticsPage.java
- src/test/java/selenium/analytics/WordLearningEventsPage.java
- src/main/webapp/WEB-INF/jsp/analytics/word-learning-event/list.jsp
- src/test/java/selenium/analytics/WordLearningEventsPageTest.java
🚧 Files skipped from review as they are similar to previous changes (1)
- src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp
👮 Files not reviewed due to content moderation or server errors (2)
- src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
- src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java
🧰 Additional context used
🧬 Code Graph Analysis (1)
src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java (2)
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java (1)
Controller(22-95)src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java (1)
Controller(17-53)
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- GitHub Check: test_ui
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- GitHub Check: test_ui
- GitHub Check: test_rest
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🔇 Additional comments (20)
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java (2)
67-77:❓ Verification inconclusive
Verify field mappings match WordAssessmentEvent entity.
The commented CSV record mapping uses fields like
getWordLetters(),getWordSounds(), andgetWordId()but the headers suggest letter-sound fields. Ensure the field mappings are consistent with the actualWordAssessmentEvententity structure.Run this script to verify the actual fields available in the WordAssessmentEvent entity:
🏁 Script executed:
#!/bin/bash # Description: Find the WordAssessmentEvent entity and check its available fields # Search for the WordAssessmentEvent class definition ast-grep --pattern 'public class WordAssessmentEvent { $$$ }' # Also search for any getter methods in the entity rg -A 2 "public.*get.*\(\)" --type java | grep -A 2 "WordAssessmentEvent"Length of output: 139
🏁 Script executed:
#!/bin/bash # Locate the WordAssessmentEvent class file CLASS_FILE=$(rg --type java "class WordAssessmentEvent" -l .) if [ -z "$CLASS_FILE" ]; then echo "WordAssessmentEvent.java not found" exit 1 fi echo "Found entity in: $CLASS_FILE" echo echo "--- Class declaration and getters ---" # Print the class header and all getter methods sed -n '1,200p' "$CLASS_FILE" | \ sed -n '/class WordAssessmentEvent/,/}/p' | \ grep -E 'class|public .*get.*\(\)'Length of output: 1414
🏁 Script executed:
#!/usr/bin/env bash # Locate the WordAssessmentEvent entity by exact filename ENTITY_FILE=$(find src -type f -name "WordAssessmentEvent.java" | head -n1) if [ -z "$ENTITY_FILE" ]; then echo "WordAssessmentEvent.java not found under src/" echo "Listing any files matching *WordAssessmentEvent*.java:" find src -type f -name "*WordAssessmentEvent*.java" exit 1 fi echo "Found entity file: $ENTITY_FILE" echo echo "---- Class declaration and all getter methods ----" grep -n -E "public class WordAssessmentEvent|public .*get[A-Z]" "$ENTITY_FILE"Length of output: 548
#!/usr/bin/env bash # Search for getter methods in the codebase to locate the entity echo "Searching for getWordLetters(), getWordSounds(), getWordId() implementations..." rg -n -e "getWordLetters" -e "getWordSounds" -e "getWordId" -t java # If found, print file context around the first occurrence FIRST_FILE=$(rg -l -e "getWordLetters" -t java | head -n1) if [ -n "$FIRST_FILE" ]; then echo echo "Showing class declaration and getters in $FIRST_FILE:" sed -n '1,200p' "$FIRST_FILE" | sed -n '/class/,/}/p' | grep -E "class|public .*get" else echo "No getters found for those fields." fi
Ensure CSV fields match the WordAssessmentEvent entity
I wasn’t able to locateWordAssessmentEvent.javain this module, so please double-check its definition (or package location) to confirm that the following getters actually exist and map to the intended columns:
getWordLetters()getWordSounds()getWordId()If the entity’s property names differ (for example, “letter” and “sound” fields are named differently), update the
csvPrinter.printRecord(…)call to use the correct getters.
43-43: LGTM: Proper use of NotImplementedException with issue reference.Good practice to throw NotImplementedException with a reference to the tracking issue. This clearly indicates the incomplete state and provides a path for future implementation.
src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java (14)
4-6: LGTM: Proper imports added for student-scoped functionality.The addition of
StudentDaoimport andStudententity import correctly supports the new student-scoped CSV export functionality.
22-22: LGTM: Request mapping correctly includes studentId path variable.The updated request mapping properly includes the
{studentId}path variable, making the endpoint student-specific as intended.
27-27: LGTM: StudentDao dependency properly injected.The
StudentDaodependency is correctly added withfinalmodifier, following the existing pattern and supporting immutable dependency injection.
33-41: LGTM: Student retrieval and validation logic is sound.The method correctly accepts the
studentIdpath variable, retrieves the student entity, and logs the Android ID for debugging purposes. This follows the established pattern from other student-scoped controllers.
42-42: LGTM: Event filtering by student's Android ID is correct.The modification to filter
WordLearningEvententities by the specific student's Android ID instead of retrieving all events properly scopes the export to the intended student.
68-69: LGTM: Null-safe word ID handling with appropriate fallback.The null check for
wordLearningEvent.getWord()with a fallback value of0prevents null pointer exceptions while maintaining data integrity. The comment referencing the GitHub issue provides helpful context for this implementation choice.
74-75: LGTM: Proper CSV resource management.Moving the
flush()call outside the loop and addingclose()call ensures proper resource cleanup and optimal performance by flushing once after all records are written.
74-75: Performance improvement: moving flush outside the loop.Good optimization! Moving
csvPrinter.flush()outside the loop reduces I/O operations and improves performance, especially when exporting large datasets.
22-22:✅ Verification successful
Verify the URL pattern is consistent with other student-scoped controllers.
The URL pattern
/analytics/students/{studentId}/word-learning-events.csvfollows the established pattern. Ensure this is properly integrated with the UI components that will trigger these downloads.Run the following script to verify URL pattern consistency across student-scoped controllers:
🏁 Script executed:
#!/bin/bash # Description: Check URL patterns for student-scoped CSV export controllers # Find all CSV export controllers in the students package and check their URL patterns rg -A 1 "@RequestMapping.*students.*\.csv" src/main/java/ai/elimu/web/analytics/students/Length of output: 1510
URL Pattern Consistency Verified
The mapping/analytics/students/{studentId}/word-learning-events.csvaligns with all other student-scoped CSV export controllers insrc/main/java/ai/elimu/web/analytics/students/(e.g.word-assessment-events.csv,letter-sound-learning-events.csv). No changes to the URL are needed. Please ensure the UI correctly calls this endpoint to trigger the CSV download.
4-4: LGTM: Clean addition of student-scoped functionality.The addition of StudentDao import, Student entity import, PathVariable annotation, and StudentDao field properly enables student-scoped CSV exports.
Also applies to: 6-6, 18-18, 27-27
22-22: LGTM: Consistent student-scoped URL pattern and parameter.The request mapping and path variable correctly scope the endpoint to individual students, making the API more RESTful and secure.
Also applies to: 33-33
39-42: LGTM: Proper student lookup and logging.The student retrieval and Android ID logging provide good traceability for debugging and audit purposes.
47-54: LGTM: Appropriate CSV header updates.Removing the "android_id" column makes sense for student-scoped exports since all events will belong to the same student. The header order is logical and consistent.
74-75: LGTM: Proper resource management.Moving the flush operation outside the loop and ensuring the CSVPrinter is closed is good practice for resource management and performance.
src/main/webapp/WEB-INF/jsp/analytics/main.jsp (2)
6-6: LGTM! Good use of content templating.The addition of
<content:gettitle />provides a consistent way to display the page title.
12-15: LGTM! Clear presentation of student data.The Students card now properly displays the count with a descriptive link text. The use of Material Icons enhances the visual appeal.
src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java (2)
23-25: LGTM! Proper dependency injection setup.The new DAO dependencies are correctly added with constructor injection using Lombok's
@RequiredArgsConstructor.
39-49:❌ Incorrect review comment
Critical issue: Missing model attributes for JSP variables.
The controller is missing model attributes for
numberAssessmentEventCountandnumberLearningEventCountthat are referenced in the JSP table. Additionally, the commented outwordAssessmentEventCountneeds to be uncommented.Add the missing DAO dependencies and model attributes:
+private final NumberAssessmentEventDao numberAssessmentEventDao; +private final NumberLearningEventDao numberLearningEventDao; +private final WordAssessmentEventDao wordAssessmentEventDao;+model.addAttribute("numberAssessmentEventCount", numberAssessmentEventDao.readCount()); +model.addAttribute("numberLearningEventCount", numberLearningEventDao.readCount()); -// model.addAttribute("wordAssessmentEventCount", wordAssessmentEventDao.readCount()); +model.addAttribute("wordAssessmentEventCount", wordAssessmentEventDao.readCount());Verify that these DAO classes exist in the codebase:
🏁 Script executed:
#!/bin/bash # Description: Verify the existence of missing DAO classes echo "=== Checking for Number-related DAO classes ===" fd -e java | xargs grep -l "class.*NumberAssessmentEventDao\|interface.*NumberAssessmentEventDao" fd -e java | xargs grep -l "class.*NumberLearningEventDao\|interface.*NumberLearningEventDao" echo "=== Checking for WordAssessmentEventDao class ===" fd -e java | xargs grep -l "class.*WordAssessmentEventDao\|interface.*WordAssessmentEventDao"Length of output: 505
To be sure these DAO classes truly don’t exist, let’s search the source tree for any references:
🏁 Script executed:
#!/bin/bash echo "Searching for WordAssessmentEventDao references…" grep -R "WordAssessmentEventDao" -n src/main/java echo "Searching for NumberAssessmentEventDao references…" grep -R "NumberAssessmentEventDao" -n src/main/java echo "Searching for NumberLearningEventDao references…" grep -R "NumberLearningEventDao" -n src/main/javaLength of output: 1056
Ignore incorrect DAO suggestions
The
NumberAssessmentEventDao,NumberLearningEventDaoandWordAssessmentEventDaoclasses do not exist in the codebase—adding them will break compilation. No model attributes should be added for those non-existent DAOs.Likely an incorrect or invalid review comment.
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | ||
| // .setHeader( | ||
| // "id", | ||
| // "timestamp", | ||
| // "package_name", | ||
| // "letter_sound_letters", | ||
| // "letter_sound_sounds", | ||
| // "letter_sound_id", | ||
| // "mastery_score", | ||
| // "time_spent_ms", | ||
| // "additional_data" | ||
| // ) |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Fix incorrect CSV headers in commented code.
The CSV headers in the commented implementation reference letter-sound fields (letter_sound_letters, letter_sound_sounds, letter_sound_id) instead of word assessment fields. This inconsistency will cause issues when the controller is implemented.
Update the headers to match word assessment event fields:
- "letter_sound_letters",
- "letter_sound_sounds",
- "letter_sound_id",
+ "word_letters",
+ "word_sounds",
+ "word_id",📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "letter_sound_letters", | |
| // "letter_sound_sounds", | |
| // "letter_sound_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) | |
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "word_letters", | |
| // "word_sounds", | |
| // "word_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
around lines 47 to 58, the commented CSV header fields incorrectly reference
letter-sound related fields instead of word assessment fields. Replace the
headers "letter_sound_letters", "letter_sound_sounds", and "letter_sound_id"
with the appropriate word assessment event fields to ensure consistency and
correctness when exporting CSV data.
Incorrect CSV headers for word assessment events.
The CSV headers in the commented code appear to be copied from letter-sound assessment events:
"letter_sound_letters","letter_sound_sounds","letter_sound_id"
These should be word-specific headers like "word_letters", "word_sounds", "word_id" to match the WordAssessmentEvent properties being accessed in the record printing code (lines 71-73).
Apply this diff to fix the CSV headers:
- "letter_sound_letters",
- "letter_sound_sounds",
- "letter_sound_id",
+ "word_letters",
+ "word_sounds",
+ "word_id",📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "letter_sound_letters", | |
| // "letter_sound_sounds", | |
| // "letter_sound_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) | |
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "word_letters", | |
| // "word_sounds", | |
| // "word_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
around lines 47 to 58, the CSV headers are incorrectly using letter-sound
related names instead of word-specific ones. Replace the headers
"letter_sound_letters", "letter_sound_sounds", and "letter_sound_id" with
"word_letters", "word_sounds", and "word_id" respectively to correctly reflect
the properties of WordAssessmentEvent used later in the code.
|
|
||
| private final StudentDao studentDao; | ||
|
|
||
| // private final WordAssessmentEventDao wordAssessmentEventDao; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Uncomment and inject the required WordAssessmentEventDao dependency.
The commented WordAssessmentEventDao dependency will be needed when implementing the actual functionality. Consider uncommenting this dependency to prepare for implementation.
Apply this diff to add the required dependency:
- // private final WordAssessmentEventDao wordAssessmentEventDao;
+ private final WordAssessmentEventDao wordAssessmentEventDao;Also uncomment the corresponding import at the top of the file.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // private final WordAssessmentEventDao wordAssessmentEventDao; | |
| private final WordAssessmentEventDao wordAssessmentEventDao; |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
at line 30, uncomment the declaration of the WordAssessmentEventDao dependency
and add the @Autowired annotation to inject it properly. Also, uncomment the
corresponding import statement for WordAssessmentEventDao at the top of the file
to ensure the class is recognized and ready for use in the implementation.
| <div class="row"> | ||
| <table class="bordered highlight"> | ||
| <thead> | ||
| <th>Data Type</th> | ||
| <th>Total Count</th> | ||
| </thead> | ||
| <tbody> | ||
| <tr> | ||
| <td>🎼 Letter-sound assessment events</td> | ||
| <td>${letterSoundAssessmentEventCount}</td> | ||
| </tr> | ||
| <tr> | ||
| <td>🎼 Letter-sound learning events</td> | ||
| <td>${letterSoundLearningEventCount}</td> | ||
| </tr> | ||
|
|
||
| <tr> | ||
| <td>🔤 Word assessment events</td> | ||
| <td>${wordAssessmentEventCount}</td> | ||
| </tr> | ||
| <tr> | ||
| <td>🔤 Word learning events</td> | ||
| <td>${wordLearningEventCount}</td> | ||
| </tr> | ||
|
|
||
| <tr> | ||
| <td>🔢 Number assessment events</td> | ||
| <td>${numberAssessmentEventCount}</td> | ||
| </tr> | ||
| <tr> | ||
| <td>🔢 Number learning events</td> | ||
| <td>${numberLearningEventCount}</td> | ||
| </tr> | ||
|
|
||
| <tr> | ||
| <td>📚 Storybook learning events</td> | ||
| <td>${storyBookLearningEventCount}</td> | ||
| </tr> | ||
|
|
||
| <tr> | ||
| <td>🎬 Video learning events</td> | ||
| <td>${videoLearningEventCount}</td> | ||
| </tr> | ||
| </tbody> | ||
| </table> | ||
| </div> |
There was a problem hiding this comment.
💡 Verification agent
🧩 Analysis chain
Critical issue: Missing model attributes in controller.
The table references several variables that are not provided by the MainAnalyticsController:
${wordAssessmentEventCount}- The controller has this commented out${numberAssessmentEventCount}- Not found in controller${numberLearningEventCount}- Not found in controller
This will result in empty cells or JSP expression errors when the page is rendered.
Additionally, verify that all the DAO dependencies for the missing counts are available and properly injected in the controller.
🏁 Script executed:
#!/bin/bash
# Description: Search for DAO classes and their usage to identify missing dependencies
echo "=== Searching for Number-related DAOs ==="
fd -e java | xargs grep -l "NumberAssessmentEventDao\|NumberLearningEventDao"
echo "=== Searching for WordAssessmentEventDao usage ==="
fd -e java | xargs grep -l "WordAssessmentEventDao"
echo "=== Checking if these DAOs exist ==="
fd -e java -n "*Number*Event*Dao*.java"
fd -e java -n "*WordAssessment*Dao*.java"Length of output: 1204
🏁 Script executed:
#!/bin/bash
set -e
echo "=== Locating MainAnalyticsController.java ==="
fd MainAnalyticsController.java
echo
echo "=== Showing first 200 lines of MainAnalyticsController.java ==="
head -n 200 src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java
echo
echo "=== Listing all addAttribute calls in MainAnalyticsController ==="
grep -R "addAttribute" -n src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java
echo
echo "=== Searching for all DAO classes ending with EventDao ==="
fd -e java EventDaoLength of output: 5542
Ensure the controller and DAOs match the JSP’s event-count rows
The JSP (src/main/webapp/WEB-INF/jsp/analytics/main.jsp, lines 21–66) still renders rows for:
${wordAssessmentEventCount}${numberAssessmentEventCount}${numberLearningEventCount}
But:
- In
MainAnalyticsController.javatheWordAssessmentEventDaoinjection and itsaddAttribute("wordAssessmentEventCount", …)are commented out. - There are no
NumberAssessmentEventDaoorNumberLearningEventDaoclasses or injections, sonumber*EventCountattributes can’t be populated.
Please pick one of the following fixes:
• Implement the missing DAOs and wire them into the controller, e.g.:
private final WordAssessmentEventDao wordAssessmentEventDao;
private final NumberAssessmentEventDao numberAssessmentEventDao;
private final NumberLearningEventDao numberLearningEventDao;
…
model.addAttribute("wordAssessmentEventCount", wordAssessmentEventDao.readCount());
model.addAttribute("numberAssessmentEventCount", numberAssessmentEventDao.readCount());
model.addAttribute("numberLearningEventCount", numberLearningEventDao.readCount());• Or remove (or comment out) the corresponding <tr> entries from main.jsp until these event types are supported.
🤖 Prompt for AI Agents
In src/main/webapp/WEB-INF/jsp/analytics/main.jsp lines 21 to 66, the JSP
references event count variables wordAssessmentEventCount,
numberAssessmentEventCount, and numberLearningEventCount that are not provided
by the MainAnalyticsController. To fix this, either implement and inject the
missing DAOs (WordAssessmentEventDao, NumberAssessmentEventDao,
NumberLearningEventDao) in the controller and add the corresponding model
attributes with their counts, or remove/comment out the <tr> rows in the JSP
that reference these variables until the backend support is added.
| private final LetterSoundLearningEventDao letterSoundLearningEventDao; | ||
|
|
||
| // private final WordAssessmentEventDao wordAssessmentEventDao; |
There was a problem hiding this comment.
Critical issue: Uncomment WordAssessmentEventDao or remove JSP reference.
The WordAssessmentEventDao is commented out, but the JSP file expects ${wordAssessmentEventCount}. This inconsistency will cause the JSP to display an empty value or error.
Either uncomment and properly inject the DAO:
-// private final WordAssessmentEventDao wordAssessmentEventDao;
+private final WordAssessmentEventDao wordAssessmentEventDao;Or remove the corresponding row from the JSP table.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // private final WordAssessmentEventDao wordAssessmentEventDao; | |
| private final WordAssessmentEventDao wordAssessmentEventDao; |
🤖 Prompt for AI Agents
In src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java at line 28,
the WordAssessmentEventDao declaration is commented out, but the JSP expects the
variable wordAssessmentEventCount which depends on this DAO. To fix this,
uncomment the WordAssessmentEventDao declaration and ensure it is properly
injected and used to set the wordAssessmentEventCount attribute for the JSP.
Alternatively, if this data is no longer needed, remove the corresponding
reference from the JSP file to avoid errors.
| Student student = studentDao.read(studentId); | ||
| log.info("student.getAndroidId(): " + student.getAndroidId()); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add null safety check for student entity.
The code retrieves a student by ID but doesn't handle the case where the student might not exist, which could result in a NullPointerException when accessing student.getAndroidId().
Add a null check after retrieving the student:
Student student = studentDao.read(studentId);
+if (student == null) {
+ log.error("Student not found with ID: " + studentId);
+ response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+ return;
+}
log.info("student.getAndroidId(): " + student.getAndroidId());📝 Committable suggestion
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); | |
| Student student = studentDao.read(studentId); | |
| if (student == null) { | |
| log.error("Student not found with ID: " + studentId); | |
| response.setStatus(HttpServletResponse.SC_NOT_FOUND); | |
| return; | |
| } | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
around lines 40 to 41, add a null check after retrieving the student entity with
studentDao.read(studentId) to ensure the student is not null before calling
student.getAndroidId(). If the student is null, handle it appropriately (e.g.,
log a warning or return early) to prevent a NullPointerException.
| Student student = studentDao.read(studentId); | ||
| log.info("student.getAndroidId(): " + student.getAndroidId()); | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add null safety check for student entity.
Similar to the other controller, this code retrieves a student by ID but doesn't handle the case where the student might not exist.
Add a null check after retrieving the student:
Student student = studentDao.read(studentId);
+if (student == null) {
+ log.error("Student not found with ID: " + studentId);
+ response.setStatus(HttpServletResponse.SC_NOT_FOUND);
+ return;
+}
log.info("student.getAndroidId(): " + student.getAndroidId());📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| Student student = studentDao.read(studentId); | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); | |
| Student student = studentDao.read(studentId); | |
| if (student == null) { | |
| log.error("Student not found with ID: " + studentId); | |
| response.setStatus(HttpServletResponse.SC_NOT_FOUND); | |
| return; | |
| } | |
| log.info("student.getAndroidId(): " + student.getAndroidId()); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java
around lines 39 to 41, add a null check after retrieving the student entity with
studentDao.read(studentId). If the student is null, handle this case
appropriately (e.g., log a warning and return or throw an exception) before
accessing student.getAndroidId() to avoid NullPointerException.
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | ||
| // .setHeader( | ||
| // "id", | ||
| // "timestamp", | ||
| // "package_name", | ||
| // "letter_sound_letters", | ||
| // "letter_sound_sounds", | ||
| // "letter_sound_id", | ||
| // "mastery_score", | ||
| // "time_spent_ms", | ||
| // "additional_data" | ||
| // ) | ||
| // .build(); |
There was a problem hiding this comment.
Fix incorrect CSV headers for word assessment events.
The CSV headers reference letter-sound fields but this controller is for word assessment events. The headers should match the word assessment event properties.
.setHeader(
"id",
"timestamp",
"package_name",
- "letter_sound_letters",
- "letter_sound_sounds",
- "letter_sound_id",
+ "word_letters",
+ "word_sounds",
+ "word_id",
"mastery_score",
"time_spent_ms",
"additional_data"📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "letter_sound_letters", | |
| // "letter_sound_sounds", | |
| // "letter_sound_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) | |
| // .build(); | |
| // CSVFormat csvFormat = CSVFormat.DEFAULT.builder() | |
| // .setHeader( | |
| // "id", | |
| // "timestamp", | |
| // "package_name", | |
| // "word_letters", | |
| // "word_sounds", | |
| // "word_id", | |
| // "mastery_score", | |
| // "time_spent_ms", | |
| // "additional_data" | |
| // ) | |
| // .build(); |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordAssessmentEventsCsvExportController.java
around lines 47 to 59, the CSV headers incorrectly reference letter-sound fields
instead of word assessment event properties. Update the CSVFormat builder to set
headers that correspond to the actual properties of word assessment events,
replacing letter-sound related headers with appropriate word assessment event
field names.
| (wordLearningEvent.getWord() != null) ? wordLearningEvent.getWord().getId() : 0, | ||
| // wordLearningEvent.getWordId(), https://github.com/elimu-ai/webapp/issues/2113 |
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💡 Verification agent
🧩 Analysis chain
Verify the word ID fallback logic and GitHub issue reference.
The ternary operator provides a fallback value of 0 when the word is null, but this might not be the best approach. Consider if null or an empty string would be more appropriate for CSV export.
🏁 Script executed:
#!/bin/bash
# Description: Check the GitHub issue to understand the context for word ID handling
# Expected: Information about why wordId handling was changed
curl -s "https://api.github.com/repos/elimu-ai/webapp/issues/2113" | jq '.title, .body'Length of output: 716
Use the new wordId field in CSV export
The GitHub issue #2113 added a wordId property on WordLearningEvent and instructed us to replace the relation lookup in the CSV exporter. We should stop falling back to 0 and instead call wordLearningEvent.getWordId(), outputting an empty string (or another placeholder) if it’s null.
• File: src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java
• Lines: 68–69
Suggested diff:
- (wordLearningEvent.getWord() != null) ? wordLearningEvent.getWord().getId() : 0,
+ wordLearningEvent.getWordId() != null
+ ? wordLearningEvent.getWordId().toString()
+ : "",This aligns with the intent of issue #2113 and avoids exporting a misleading “0” when the ID is absent.
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| (wordLearningEvent.getWord() != null) ? wordLearningEvent.getWord().getId() : 0, | |
| // wordLearningEvent.getWordId(), https://github.com/elimu-ai/webapp/issues/2113 | |
| wordLearningEvent.getWordId() != null | |
| ? wordLearningEvent.getWordId().toString() | |
| : "", |
🤖 Prompt for AI Agents
In
src/main/java/ai/elimu/web/analytics/students/WordLearningEventsCsvExportController.java
at lines 68-69, replace the current ternary expression that falls back to 0 when
word is null with a call to wordLearningEvent.getWordId(). Export the wordId
directly, and if it is null, output an empty string or another appropriate
placeholder instead of 0 to avoid misleading data in the CSV export, following
the guidance from GitHub issue #2113.
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Actionable comments posted: 3
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📒 Files selected for processing (3)
src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java(3 hunks)src/main/java/ai/elimu/web/analytics/students/StudentController.java(2 hunks)src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp(4 hunks)
🚧 Files skipped from review as they are similar to previous changes (2)
- src/main/webapp/WEB-INF/jsp/analytics/students/id.jsp
- src/main/java/ai/elimu/web/analytics/MainAnalyticsController.java
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- GitHub Check: test_ui
- GitHub Check: test_ui
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| week = calendar6MonthsAgo; | ||
| while (!week.after(calendarNow)) { | ||
| String weekAsString = simpleDateFormat.format(week.getTime()); | ||
| wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | ||
| week.add(Calendar.WEEK_OF_YEAR, 1); | ||
| } |
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Fix potential Calendar mutation issue.
The code reuses the same Calendar instances (calendar6MonthsAgo, calendarNow) across multiple iterations, but modifies the week variable directly from calendar6MonthsAgo. This can lead to unexpected behavior as Calendar objects are mutable.
Apply this fix to ensure Calendar independence:
- // Iterate each week from 6 months ago until now
- week = calendar6MonthsAgo;
- while (!week.after(calendarNow)) {
- String weekAsString = simpleDateFormat.format(week.getTime());
- wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0));
- week.add(Calendar.WEEK_OF_YEAR, 1);
- }
+ // Iterate each week from 6 months ago until now
+ week = (Calendar) calendar6MonthsAgo.clone();
+ while (!week.after(calendarNow)) {
+ String weekAsString = simpleDateFormat.format(week.getTime());
+ wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0));
+ week.add(Calendar.WEEK_OF_YEAR, 1);
+ }The same fix should be applied to lines 120-125 and 143-148 for the other event types.
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| week = calendar6MonthsAgo; | |
| while (!week.after(calendarNow)) { | |
| String weekAsString = simpleDateFormat.format(week.getTime()); | |
| wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | |
| week.add(Calendar.WEEK_OF_YEAR, 1); | |
| } | |
| // Iterate each week from 6 months ago until now | |
| week = (Calendar) calendar6MonthsAgo.clone(); | |
| while (!week.after(calendarNow)) { | |
| String weekAsString = simpleDateFormat.format(week.getTime()); | |
| wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | |
| week.add(Calendar.WEEK_OF_YEAR, 1); | |
| } |
🤖 Prompt for AI Agents
In src/main/java/ai/elimu/web/analytics/students/StudentController.java around
lines 97 to 102, the code assigns the mutable Calendar instance
calendar6MonthsAgo directly to the variable week and then modifies week, which
unintentionally mutates calendar6MonthsAgo. To fix this, create a new Calendar
instance by cloning calendar6MonthsAgo before the loop to ensure week is
independent and modifications do not affect the original calendar. Apply the
same cloning approach to the similar loops at lines 120-125 and 143-148 for
other event types.
| String monthAsString = simpleDateFormat.format(month.getTime()); | ||
| wordMonthList.add(monthAsString); | ||
|
|
||
| wordEventCountList.add(eventCountByMonthMap.getOrDefault(monthAsString, 0)); | ||
|
|
||
| // Increase the date by 1 month | ||
| month.add(Calendar.MONTH, 1); | ||
| // Iterate each week from 6 months ago until now | ||
| week = calendar6MonthsAgo; | ||
| while (!week.after(calendarNow)) { | ||
| String weekAsString = simpleDateFormat.format(week.getTime()); | ||
| wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | ||
| week.add(Calendar.WEEK_OF_YEAR, 1); | ||
| } | ||
| } | ||
| model.addAttribute("wordMonthList", wordMonthList); | ||
| model.addAttribute("wordEventCountList", wordEventCountList); | ||
| model.addAttribute("wordLearningEvents", wordLearningEvents); | ||
|
|
||
|
|
||
| // Prepare chart data - StoryBookLearningEvents | ||
| List<StoryBookLearningEvent> storyBookLearningEvents = storyBookLearningEventDao.readAll(student.getAndroidId()); | ||
| List<String> storyBookMonthList = new ArrayList<>(); | ||
| List<Integer> storyBookEventCountList = new ArrayList<>(); | ||
| if (!storyBookLearningEvents.isEmpty()) { | ||
| // Group event count by month (e.g. "Aug-2024", "Sep-2024") | ||
| Map<String, Integer> eventCountByMonthMap = new HashMap<>(); | ||
| SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMM-yyyy"); | ||
| // Group event count by week (e.g. "2024-09", "2024-26") | ||
| Map<String, Integer> eventCountByWeekMap = new HashMap<>(); | ||
| for (StoryBookLearningEvent event : storyBookLearningEvents) { | ||
| String eventMonth = simpleDateFormat.format(event.getTimestamp().getTime()); | ||
| eventCountByMonthMap.put(eventMonth, eventCountByMonthMap.getOrDefault(eventMonth, 0) + 1); | ||
| String eventWeek = simpleDateFormat.format(event.getTimestamp().getTime()); | ||
| eventCountByWeekMap.put(eventWeek, eventCountByWeekMap.getOrDefault(eventWeek, 0) + 1); | ||
| } | ||
|
|
||
| // Iterate each month from 4 years ago until now | ||
| Calendar calendar4YearsAgo = Calendar.getInstance(); | ||
| calendar4YearsAgo.add(Calendar.YEAR, -4); | ||
| Calendar calendarNow = Calendar.getInstance(); | ||
| Calendar month = calendar4YearsAgo; | ||
| while (!month.after(calendarNow)) { | ||
| String monthAsString = simpleDateFormat.format(month.getTime()); | ||
| storyBookMonthList.add(monthAsString); | ||
|
|
||
| storyBookEventCountList.add(eventCountByMonthMap.getOrDefault(monthAsString, 0)); | ||
|
|
||
| // Increase the date by 1 month | ||
| month.add(Calendar.MONTH, 1); | ||
| // Iterate each week from 6 months ago until now | ||
| week = calendar6MonthsAgo; | ||
| while (!week.after(calendarNow)) { | ||
| String weekAsString = simpleDateFormat.format(week.getTime()); | ||
| storyBookEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | ||
| week.add(Calendar.WEEK_OF_YEAR, 1); | ||
| } | ||
| } | ||
| model.addAttribute("storyBookMonthList", storyBookMonthList); | ||
| model.addAttribute("storyBookEventCountList", storyBookEventCountList); | ||
| model.addAttribute("storyBookLearningEvents", storyBookLearningEvents); | ||
|
|
||
|
|
||
| // Prepare chart data - VideoLearningEvents | ||
| List<VideoLearningEvent> videoLearningEvents = videoLearningEventDao.readAll(student.getAndroidId()); | ||
| List<String> videoMonthList = new ArrayList<>(); | ||
| List<Integer> videoEventCountList = new ArrayList<>(); | ||
| if (!videoLearningEvents.isEmpty()) { | ||
| // Group event count by month (e.g. "Aug-2024", "Sep-2024") | ||
| Map<String, Integer> eventCountByMonthMap = new HashMap<>(); | ||
| SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMM-yyyy"); | ||
| // Group event count by week (e.g. "2024-09", "2024-26") | ||
| Map<String, Integer> eventCountByWeekMap = new HashMap<>(); | ||
| for (VideoLearningEvent event : videoLearningEvents) { | ||
| String eventMonth = simpleDateFormat.format(event.getTimestamp().getTime()); | ||
| eventCountByMonthMap.put(eventMonth, eventCountByMonthMap.getOrDefault(eventMonth, 0) + 1); | ||
| String eventWeek = simpleDateFormat.format(event.getTimestamp().getTime()); | ||
| eventCountByWeekMap.put(eventWeek, eventCountByWeekMap.getOrDefault(eventWeek, 0) + 1); | ||
| } | ||
|
|
||
| // Iterate each month from 4 years ago until now | ||
| Calendar calendar4YearsAgo = Calendar.getInstance(); | ||
| calendar4YearsAgo.add(Calendar.YEAR, -4); | ||
| Calendar calendarNow = Calendar.getInstance(); | ||
| Calendar month = calendar4YearsAgo; | ||
| while (!month.after(calendarNow)) { | ||
| String monthAsString = simpleDateFormat.format(month.getTime()); | ||
| videoMonthList.add(monthAsString); | ||
|
|
||
| videoEventCountList.add(eventCountByMonthMap.getOrDefault(monthAsString, 0)); | ||
|
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||
| // Increase the date by 1 month | ||
| month.add(Calendar.MONTH, 1); | ||
| // Iterate each week from 6 months ago until now | ||
| week = calendar6MonthsAgo; | ||
| while (!week.after(calendarNow)) { | ||
| String weekAsString = simpleDateFormat.format(week.getTime()); | ||
| videoEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0)); | ||
| week.add(Calendar.WEEK_OF_YEAR, 1); | ||
| } |
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🛠️ Refactor suggestion
Eliminate code duplication and improve maintainability.
The same event processing logic is repeated three times for different event types, violating the DRY principle. This makes the code harder to maintain and increases the risk of inconsistencies.
Extract the common logic into a reusable method:
+ private <T> List<Integer> processLearningEvents(List<T> events,
+ Function<T, Calendar> timestampExtractor,
+ SimpleDateFormat dateFormat,
+ Calendar startCalendar,
+ Calendar endCalendar) {
+ List<Integer> eventCountList = new ArrayList<>();
+ if (!events.isEmpty()) {
+ Map<String, Integer> eventCountByWeekMap = new HashMap<>();
+ for (T event : events) {
+ String eventWeek = dateFormat.format(timestampExtractor.apply(event).getTime());
+ eventCountByWeekMap.put(eventWeek, eventCountByWeekMap.getOrDefault(eventWeek, 0) + 1);
+ }
+
+ Calendar week = (Calendar) startCalendar.clone();
+ while (!week.after(endCalendar)) {
+ String weekAsString = dateFormat.format(week.getTime());
+ eventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0));
+ week.add(Calendar.WEEK_OF_YEAR, 1);
+ }
+ }
+ return eventCountList;
+ }Then replace the repeated code blocks:
- // Prepare chart data - WordLearningEvents
- List<WordLearningEvent> wordLearningEvents = wordLearningEventDao.readAll(student.getAndroidId());
- List<Integer> wordEventCountList = new ArrayList<>();
- if (!wordLearningEvents.isEmpty()) {
- // Group event count by week (e.g. "2024-09", "2024-26")
- Map<String, Integer> eventCountByWeekMap = new HashMap<>();
- for (WordLearningEvent event : wordLearningEvents) {
- String eventWeek = simpleDateFormat.format(event.getTimestamp().getTime());
- eventCountByWeekMap.put(eventWeek, eventCountByWeekMap.getOrDefault(eventWeek, 0) + 1);
- }
-
- // Iterate each week from 6 months ago until now
- week = calendar6MonthsAgo;
- while (!week.after(calendarNow)) {
- String weekAsString = simpleDateFormat.format(week.getTime());
- wordEventCountList.add(eventCountByWeekMap.getOrDefault(weekAsString, 0));
- week.add(Calendar.WEEK_OF_YEAR, 1);
- }
- }
+ List<WordLearningEvent> wordLearningEvents = wordLearningEventDao.readAll(student.getAndroidId());
+ List<Integer> wordEventCountList = processLearningEvents(
+ wordLearningEvents,
+ WordLearningEvent::getTimestamp,
+ simpleDateFormat,
+ calendar6MonthsAgo,
+ calendarNow
+ );🤖 Prompt for AI Agents
In src/main/java/ai/elimu/web/analytics/students/StudentController.java between
lines 89 and 148, the code for grouping event counts by week and iterating over
weeks is duplicated for WordLearningEvent, StoryBookLearningEvent, and
VideoLearningEvent. To fix this, extract the common logic into a reusable method
that accepts a list of events and returns the list of weekly event counts.
Replace the repeated code blocks by calling this new method with the respective
event lists, thereby eliminating duplication and improving maintainability.
| // Generate a list of weeks from 6 months ago until now | ||
| List<String> weekList = new ArrayList<>(); | ||
| SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-ww"); | ||
| Calendar calendar6MonthsAgo = Calendar.getInstance(); | ||
| calendar6MonthsAgo.add(Calendar.MONTH, -6); | ||
| Calendar calendarNow = Calendar.getInstance(); | ||
| Calendar week = calendar6MonthsAgo; | ||
| while (!week.after(calendarNow)) { | ||
| String weekAsString = simpleDateFormat.format(week.getTime()); | ||
| weekList.add(weekAsString); | ||
| week.add(Calendar.WEEK_OF_YEAR, 1); | ||
| } | ||
| model.addAttribute("weekList", weekList); | ||
|
|
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🛠️ Refactor suggestion
Address SimpleDateFormat pattern and time zone issues.
The yyyy-ww pattern with SimpleDateFormat can be problematic for week-based analytics:
- Week numbering inconsistency: The "ww" pattern has locale-dependent behavior and can cause issues across year boundaries
- Time zone dependency: No explicit time zone is set, which may cause inconsistent behavior across different server environments
Consider using DateTimeFormatter with explicit time zone handling:
- SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-ww");
+ DateTimeFormatter weekFormatter = DateTimeFormatter.ofPattern("yyyy-ww", Locale.US);
+ ZoneId serverTimeZone = ZoneId.systemDefault();Or better yet, use java.time API for more reliable week calculations:
- List<String> weekList = new ArrayList<>();
- SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-ww");
- Calendar calendar6MonthsAgo = Calendar.getInstance();
- calendar6MonthsAgo.add(Calendar.MONTH, -6);
- Calendar calendarNow = Calendar.getInstance();
- Calendar week = calendar6MonthsAgo;
- while (!week.after(calendarNow)) {
- String weekAsString = simpleDateFormat.format(week.getTime());
- weekList.add(weekAsString);
- week.add(Calendar.WEEK_OF_YEAR, 1);
- }
+ List<String> weekList = new ArrayList<>();
+ LocalDate sixMonthsAgo = LocalDate.now().minusMonths(6);
+ LocalDate now = LocalDate.now();
+ LocalDate current = sixMonthsAgo.with(DayOfWeek.MONDAY); // Start from Monday of the week
+
+ while (!current.isAfter(now)) {
+ String weekAsString = current.format(DateTimeFormatter.ofPattern("yyyy-ww"));
+ weekList.add(weekAsString);
+ current = current.plusWeeks(1);
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Generate a list of weeks from 6 months ago until now | |
| List<String> weekList = new ArrayList<>(); | |
| SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-ww"); | |
| Calendar calendar6MonthsAgo = Calendar.getInstance(); | |
| calendar6MonthsAgo.add(Calendar.MONTH, -6); | |
| Calendar calendarNow = Calendar.getInstance(); | |
| Calendar week = calendar6MonthsAgo; | |
| while (!week.after(calendarNow)) { | |
| String weekAsString = simpleDateFormat.format(week.getTime()); | |
| weekList.add(weekAsString); | |
| week.add(Calendar.WEEK_OF_YEAR, 1); | |
| } | |
| model.addAttribute("weekList", weekList); | |
| // Generate a list of weeks from 6 months ago until now | |
| List<String> weekList = new ArrayList<>(); | |
| LocalDate sixMonthsAgo = LocalDate.now().minusMonths(6); | |
| LocalDate now = LocalDate.now(); | |
| LocalDate current = sixMonthsAgo.with(DayOfWeek.MONDAY); // Start from Monday of the week | |
| while (!current.isAfter(now)) { | |
| String weekAsString = current.format(DateTimeFormatter.ofPattern("yyyy-ww")); | |
| weekList.add(weekAsString); | |
| current = current.plusWeeks(1); | |
| } | |
| model.addAttribute("weekList", weekList); |
🤖 Prompt for AI Agents
In src/main/java/ai/elimu/web/analytics/students/StudentController.java around
lines 63 to 76, the use of SimpleDateFormat with the pattern "yyyy-ww" and no
explicit time zone causes potential inconsistencies in week numbering and time
zone handling. Replace SimpleDateFormat with java.time API classes such as
ZonedDateTime or LocalDate combined with WeekFields to generate the list of
weeks reliably. Use DateTimeFormatter with an explicit time zone (e.g., UTC) and
locale to ensure consistent week calculations across year boundaries and
different server environments.
Issue Number
android_idwithstudent_id#2103Purpose
Technical Details
Testing Instructions
Screenshots
Format Checks
Note
Files in PRs are automatically checked for format violations with
mvn spotless:check.If this PR contains files with format violations, run
mvn spotless:applyto fix them.