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jo-elimu
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AshishBagdane,
alexander-kuruvilla and
eymaal
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a team
WalkthroughThis set of changes migrates the storage and serving of video files from internal database storage to an external platform, specifically GitHub LFS. The Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant VideoCreateController
participant ChecksumHelper
participant GitHubLfsHelper
participant Video
participant Database
User->>VideoCreateController: Uploads video file
VideoCreateController->>ChecksumHelper: Calculate MD5 checksum
VideoCreateController->>Video: Set MD5 checksum
VideoCreateController->>GitHubLfsHelper: Upload video to GitHub LFS
GitHubLfsHelper->>GitHubLfsHelper: Upload file, return GitHub checksum
VideoCreateController->>Video: Set GitHub checksum
VideoCreateController->>Database: Store Video entity
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## main #2138 +/- ##
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Lines 6065 6089 +24
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Actionable comments posted: 2
🧹 Nitpick comments (3)
src/main/java/ai/elimu/entity/content/multimedia/Video.java (1)
50-55: New getUrl() method for generating video URLs.The method dynamically constructs URLs to videos stored in GitHub LFS, using the content language, MD5 checksum, and video format to form the complete path.
Consider extracting the base URL and path structure to constants or configuration properties to improve maintainability. This would make it easier to adapt if the repository structure or hosting location changes in the future:
+ private static final String BASE_URL = "https://raw.githubusercontent.com/elimu-ai/webapp-lfs/main"; + private static final String VIDEOS_PATH = "/videos"; public String getUrl() { - return "https://raw.githubusercontent.com/elimu-ai/webapp-lfs/main" + + return BASE_URL + "/lang-" + EnvironmentContextLoaderListener.PROPERTIES.getProperty("content.language") + - "/videos" + + VIDEOS_PATH + "/" + getChecksumMd5() + "." + getVideoFormat().toString().toLowerCase(); }src/main/java/ai/elimu/web/content/multimedia/video/VideoCreateController.java (1)
130-131: TODO comment should include more context.The TODO comment references GitHub issue #1545 but doesn't provide any context about what needs to be done. Adding a brief description would make it clearer for other developers.
-// TODO: https://github.com/elimu-ai/webapp/issues/1545 +// TODO: Additional processing or optimization needed for videos - https://github.com/elimu-ai/webapp/issues/1545src/main/java/ai/elimu/util/GitHubLfsHelper.java (1)
69-110: Good refactoring: Common upload functionality extracted to a private method.The extraction of common upload functionality into a private method reduces code duplication and centralizes the GitHub API interaction logic. However, error handling could be improved.
Consider enhancing error handling with more specific error messages:
if (!httpResponse.isSuccess()) { - log.warn("responseAsJson: " + responseAsJson); + log.error("Failed to upload file to GitHub LFS. Path: {}, Status: {}, Response: {}", + path, httpResponse.getStatus(), responseAsJson); return null; } else {Also consider adding retry logic for transient network issues:
-private static String uploadFileToLfs(String path, byte[] bytes) { +private static String uploadFileToLfs(String path, byte[] bytes, int retryCount) { log.info("uploadFileToLfs"); // ... existing code ... if (!httpResponse.isSuccess()) { log.warn("responseAsJson: " + responseAsJson); + if (retryCount > 0 && (httpResponse.getStatus() == 500 || httpResponse.getStatus() == 503)) { + log.info("Retrying upload due to server error. Attempts remaining: {}", retryCount - 1); + try { + Thread.sleep(1000); // Wait before retry + } catch (InterruptedException e) { + Thread.currentThread().interrupt(); + } + return uploadFileToLfs(path, bytes, retryCount - 1); + } return null; } else { // ... existing code ... } } +private static String uploadFileToLfs(String path, byte[] bytes) { + return uploadFileToLfs(path, bytes, 2); // Default to 2 retries +}
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📒 Files selected for processing (12)
pom-dependency-tree.txt(1 hunks)src/main/java/ai/elimu/entity/content/multimedia/Video.java(2 hunks)src/main/java/ai/elimu/rest/v2/JpaToGsonConverter.java(1 hunks)src/main/java/ai/elimu/util/GitHubLfsHelper.java(2 hunks)src/main/java/ai/elimu/web/content/multimedia/video/VideoCreateController.java(3 hunks)src/main/java/ai/elimu/web/content/multimedia/video/VideoCsvExportController.java(1 hunks)src/main/java/ai/elimu/web/content/multimedia/video/VideoEditController.java(4 hunks)src/main/webapp/WEB-INF/jsp/content/multimedia/image/create.jsp(1 hunks)src/main/webapp/WEB-INF/jsp/content/multimedia/image/edit.jsp(1 hunks)src/main/webapp/WEB-INF/jsp/content/multimedia/video/edit.jsp(2 hunks)src/main/webapp/WEB-INF/jsp/content/multimedia/video/list.jsp(1 hunks)src/main/webapp/static/css/styles.css(1 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (1)
src/main/java/ai/elimu/util/GitHubLfsHelper.java (1)
src/main/java/ai/elimu/web/context/EnvironmentContextLoaderListener.java (1)
EnvironmentContextLoaderListener(32-167)
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- GitHub Check: build (macos-latest, 21)
- GitHub Check: build (windows-latest, 17)
- GitHub Check: build (ubuntu-latest, 17)
- GitHub Check: build (windows-latest, 21)
- GitHub Check: build (ubuntu-latest, 21)
- GitHub Check: test_rest_localhost
🔇 Additional comments (21)
pom-dependency-tree.txt (1)
1-1: Routine version bump looks good.The update from
2.5.89-SNAPSHOTto2.5.91-SNAPSHOTis appropriate for tracking new features and enhancements. No issues found.src/main/webapp/WEB-INF/jsp/content/multimedia/image/edit.jsp (1)
103-103: File input changed from Spring form tag to standard HTML input.The change from
<form:input path="bytes" type="file" />to standard HTML<input name="bytes" type="file" />maintains compatibility while potentially avoiding Spring binding issues with multipart file uploads. This change aligns with similar modifications in the image creation form.src/main/webapp/WEB-INF/jsp/content/multimedia/image/create.jsp (1)
84-84: File input changed from Spring form tag to standard HTML input.This change matches the modification in the edit.jsp file, ensuring a consistent approach to file uploads across the application.
src/main/webapp/static/css/styles.css (3)
62-63: CSS styling extended to support video elements.The CSS selectors now include both images and videos, which ensures consistent styling for all multimedia elements.
69-70: CSS styling for card panels extended to videos.Consistent styling applied to videos within card panels, maintaining visual harmony with image elements.
74-74: Simplified CSS selector for cid-false class.The selector was streamlined from
.cid-false, main .card-panel img.cid-falseto just.cid-false, which might broaden its application beyond images to include videos with this class.src/main/java/ai/elimu/entity/content/multimedia/Video.java (1)
5-5: Added import for EnvironmentContextLoaderListener.The import is required for accessing environment properties in the new getUrl() method.
src/main/java/ai/elimu/web/content/multimedia/video/VideoCsvExportController.java (1)
41-41: Good refactoring to use the new URL generation method.Using
video.getUrl()instead of manually constructing the URL is a good practice. This centralizes the URL generation logic in the Video entity, ensuring consistency across the application as videos are migrated to GitHub LFS.src/main/webapp/WEB-INF/jsp/content/multimedia/video/list.jsp (2)
27-27: Appropriate conditional CSS class based on GitHub LFS migration status.The CSS class
cid-${video.checksumGitHub != null}provides visual differentiation between videos that have been migrated to GitHub LFS and those that haven't. This helps track the migration progress.
29-29: Good addition of the card-image class for consistent styling.Adding the "card-image" class while maintaining the inline styles improves the styling structure. This will make it easier to apply consistent styling across video elements.
src/main/java/ai/elimu/rest/v2/JpaToGsonConverter.java (1)
356-356: Good refactoring to use the new URL generation method.Using
video.getUrl()ensures consistency with the changes in VideoCsvExportController.java. This centralizes the URL generation logic in the Video entity, which is a good practice when migrating to GitHub LFS.src/main/java/ai/elimu/web/content/multimedia/video/VideoCreateController.java (2)
9-10: Appropriate imports for the new functionality.Adding imports for
ChecksumHelperandGitHubLfsHelperis necessary for the new checksum calculation and GitHub LFS upload functionality.
93-95: Good implementation of MD5 checksum calculation.Setting the MD5 checksum using
ChecksumHelper.calculateMD5(bytes)is important for the GitHub LFS integration. The TODO comment appropriately references the related GitHub issue for tracking.src/main/java/ai/elimu/web/content/multimedia/video/VideoEditController.java (3)
17-18: Appropriate imports added for video LFS handling.The addition of ChecksumHelper and GitHubLfsHelper imports aligns with the PR objective of supporting video uploads to GitHub LFS storage.
129-130: MD5 checksum calculation added for the uploaded video.The code now calculates and stores an MD5 checksum for the video content, which is used for constructing filenames in the GitHub LFS storage. The TODO comment indicates there might be additional work planned around this functionality in issue #2137.
155-155:Details
✅ Verification successful
Track the TODO comment for completion.
The same TODO referencing issue #1545 appears twice in this file (here and line 74). This indicates an important follow-up task that should be tracked for completion after this PR.
🏁 Script executed:
#!/bin/bash # Check if issue #1545 is still open gh issue view 1545 --repo elimu-ai/webapp --json state,title,body | jq .Length of output: 151
ACTION: Ensure both TODO references for issue #1545 are tracked for timely resolution
- The file
src/main/java/ai/elimu/web/content/multimedia/video/VideoEditController.javacontains the same TODO comment on lines 74 and 155.- Verification confirms that issue #1545 ("Add VideoContributionEvent") remains open.
- Please track this issue and update or remove the TODO comments once the functionality is implemented.
src/main/webapp/WEB-INF/jsp/content/multimedia/video/edit.jsp (2)
7-11: Video preview and playback functionality added.An embedded video player has been added to allow users to preview videos directly in the editor. This improves usability by providing immediate visual feedback without requiring users to navigate away.
359-370: Added technical metadata for video files.The code displays important metadata about the video, including checksums and URL, which is useful for debugging and verification. This aligns with the PR objective of tracking video files in LFS.
A minor suggestion to improve user experience:
<label>file_url</label> -<code>${video.url}</code><br /> +<code><a href="${video.url}" target="_blank">${video.url}</a></code><br />src/main/java/ai/elimu/util/GitHubLfsHelper.java (3)
23-24: Good refactoring: API base URL extracted as a constant.Extracting the API base URL as a constant improves maintainability by centralizing this value and making it easier to update if needed.
32-45: Refactored image upload method to use common upload functionality.The image upload method has been improved to use a more descriptive path construction and delegate to a common upload method. This reduces code duplication and improves maintainability.
47-67: New method to support video uploads to GitHub LFS.This method properly handles the upload of video files to GitHub LFS, using the video's MD5 checksum in the filename for better identification and organization.
Note the key difference in naming convention: videos use MD5 checksum as the filename while images use ID and revision number. This difference should be documented for future maintainers.
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | ||
| video.setChecksumGitHub(checksumGitHub); | ||
| video.setTimeLastUpdate(Calendar.getInstance()); |
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🛠️ Refactor suggestion
Add validation for the GitHub LFS upload result.
The code uploads the video to GitHub LFS and sets the checksum, but there's no validation that the upload was successful. The checksumGitHub could potentially be null or empty if the upload fails.
-String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes());
-video.setChecksumGitHub(checksumGitHub);
+String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes());
+if (StringUtils.isNotBlank(checksumGitHub)) {
+ video.setChecksumGitHub(checksumGitHub);
+} else {
+ log.error("Failed to upload video to GitHub LFS: {}", video.getTitle());
+ result.rejectValue("bytes", "GitHubLfsUploadFailed");
+ return "content/multimedia/video/create";
+}📝 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.
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | |
| video.setChecksumGitHub(checksumGitHub); | |
| video.setTimeLastUpdate(Calendar.getInstance()); | |
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | |
| if (StringUtils.isNotBlank(checksumGitHub)) { | |
| video.setChecksumGitHub(checksumGitHub); | |
| } else { | |
| log.error("Failed to upload video to GitHub LFS: {}", video.getTitle()); | |
| result.rejectValue("bytes", "GitHubLfsUploadFailed"); | |
| return "content/multimedia/video/create"; | |
| } | |
| video.setTimeLastUpdate(Calendar.getInstance()); |
| if (StringUtils.isBlank(video.getChecksumGitHub())) { | ||
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | ||
| video.setChecksumGitHub(checksumGitHub); | ||
| video.setRevisionNumber(video.getRevisionNumber() + 1); | ||
| videoDao.update(video); | ||
|
|
||
| // TODO: https://github.com/elimu-ai/webapp/issues/1545 | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider adding error handling for GitHub LFS upload failures.
The code correctly checks for missing GitHub checksums and uploads files to LFS when needed. However, there's no error handling if the upload fails (when uploadVideoToLfs returns null).
Consider implementing error handling:
if (StringUtils.isBlank(video.getChecksumGitHub())) {
String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes());
+ if (checksumGitHub == null) {
+ log.error("Failed to upload video ID {} to GitHub LFS", video.getId());
+ // Consider adding a flash message or other user feedback
+ } else {
video.setChecksumGitHub(checksumGitHub);
video.setRevisionNumber(video.getRevisionNumber() + 1);
videoDao.update(video);
+ }
// TODO: https://github.com/elimu-ai/webapp/issues/1545
}📝 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.
| if (StringUtils.isBlank(video.getChecksumGitHub())) { | |
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | |
| video.setChecksumGitHub(checksumGitHub); | |
| video.setRevisionNumber(video.getRevisionNumber() + 1); | |
| videoDao.update(video); | |
| // TODO: https://github.com/elimu-ai/webapp/issues/1545 | |
| } | |
| if (StringUtils.isBlank(video.getChecksumGitHub())) { | |
| String checksumGitHub = GitHubLfsHelper.uploadVideoToLfs(video, video.getBytes()); | |
| if (checksumGitHub == null) { | |
| log.error("Failed to upload video ID {} to GitHub LFS", video.getId()); | |
| // Consider adding a flash message or other user feedback | |
| } else { | |
| video.setChecksumGitHub(checksumGitHub); | |
| video.setRevisionNumber(video.getRevisionNumber() + 1); | |
| videoDao.update(video); | |
| } | |
| // TODO: https://github.com/elimu-ai/webapp/issues/1545 | |
| } |
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