Implement VideoContentProvider #177
Conversation
WalkthroughThis update integrates video handling capabilities into the application. It adds a new video content provider by updating the Android manifest and introducing the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Provider as VideoContentProvider
participant DAO as VideoDao
participant DB as RoomDatabase
Client->>Provider: query(uri, ...)
Provider->>DAO: loadByTitleAsCursor(title) [or other query method]
DAO->>DB: SQL Query
DB-->>DAO: Cursor result
DAO-->>Provider: Cursor
Provider-->>Client: Return Cursor with video data
sequenceDiagram
participant Client
participant Provider as VideoContentProvider
participant FileHelper
participant FS as FileSystem
Client->>Provider: openFile(uri, "r")
Provider->>FileHelper: getVideoFile(video, context)
FileHelper->>FS: Construct File from external movies directory
FS-->>FileHelper: File object
FileHelper-->>Provider: Video File
Provider-->>Client: Return ParcelFileDescriptor
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Actionable comments posted: 1
🧹 Nitpick comments (7)
app/src/main/res/xml/video_file_path.xml (1)
3-3: Rename the path element for consistencyThe name attribute "pictures" is inconsistent with both the purpose of a video provider and the "Movies/" path. This could lead to confusion when referencing this path in code.
- <external-files-path name="pictures" path="Movies/" /> + <external-files-path name="videos" path="Movies/" />utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.java (2)
13-13: Make TAG constant finalThe TAG variable should be declared as final since it's a constant.
- private static String TAG = CursorToVideoGsonConverter.class.getName(); + private static final String TAG = CursorToVideoGsonConverter.class.getName();
16-37: Consider using DEBUG level loggingThe method uses INFO level logging for every step of the conversion process. This could impact performance in production. Consider using DEBUG level for detailed operation logging.
- Log.i(TAG, "getVideoGson"); + Log.d(TAG, "getVideoGson"); - Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames())); + Log.d(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames())); int columnId = cursor.getColumnIndex("id"); Long id = cursor.getLong(columnId); - Log.i(TAG, "id: " + id); + Log.d(TAG, "id: " + id); int columnRevisionNumber = cursor.getColumnIndex("revisionNumber"); Integer revisionNumber = cursor.getInt(columnRevisionNumber); - Log.i(TAG, "revisionNumber: " + revisionNumber); + Log.d(TAG, "revisionNumber: " + revisionNumber); int columnTitle = cursor.getColumnIndex("title"); String title = cursor.getString(columnTitle); - Log.i(TAG, "title: \"" + title + "\""); + Log.d(TAG, "title: \"" + title + "\""); int columnVideoFormat = cursor.getColumnIndex("videoFormat"); String videoFormatAsString = cursor.getString(columnVideoFormat); - Log.i(TAG, "videoFormatAsString: " + videoFormatAsString); + Log.d(TAG, "videoFormatAsString: " + videoFormatAsString); VideoFormat videoFormat = VideoFormat.valueOf(videoFormatAsString); - Log.i(TAG, "videoFormat: " + videoFormat); + Log.d(TAG, "videoFormat: " + videoFormat);utils/src/main/java/ai/elimu/content_provider/utils/ContentProviderUtil.kt (1)
594-647: Use existing TAG constant for consistency in logging.Your implementation of the suspend function for retrieving video data looks good, but there's an inconsistency in the logging approach. The method uses
ContentProviderUtil::class.java.namefor logging while other methods in this file use theTAGconstant defined at line 31.Update the logging calls for consistency:
- Log.i(ContentProviderUtil::class.java.name, "getAllVideoGsons") + Log.i(TAG, "getAllVideoGsons")And apply similar changes to all logging calls in this method.
app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.java (3)
29-29: Non-sequential URI matcher code.The
CODE_VIDEO_TITLEis set to 4, but the previous codes are 1 and 2. Consider using sequential numbers (3 instead of 4) for better readability unless there's a specific reason for skipping code 3.
158-179: Thorough file access implementation with proper error handling.The openFile method has good error checking:
- Validates URI structure
- Checks for null return from FileHelper
- Verifies if the file exists
- Provides detailed error messages in logs
One security consideration: Be cautious with exposing absolute file paths in error logs in production environments.
Consider sanitizing the file path in the error message or using a relative path instead:
- Log.e("VideoContentProvider", "videoFile doesn't exist: " + videoFile.getAbsolutePath()); - throw new FileNotFoundException("File not found: " + videoFile.getAbsolutePath()); + Log.e("VideoContentProvider", "videoFile doesn't exist: " + videoFile.getName()); + throw new FileNotFoundException("File not found: " + videoFile.getName());
120-146: Add comments explaining why these operations are not supported.The methods
getType,insert, andupdateall throw UnsupportedOperationException. While this is fine if these operations aren't needed, adding a brief comment explaining why they're not implemented would improve code readability.
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📒 Files selected for processing (7)
app/src/main/AndroidManifest.xml(1 hunks)app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.java(1 hunks)app/src/main/java/ai/elimu/content_provider/room/dao/VideoDao.java(1 hunks)app/src/main/java/ai/elimu/content_provider/util/FileHelper.java(2 hunks)app/src/main/res/xml/video_file_path.xml(1 hunks)utils/src/main/java/ai/elimu/content_provider/utils/ContentProviderUtil.kt(3 hunks)utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.java(1 hunks)
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- GitHub Check: build (ubuntu-latest, 17)
🔇 Additional comments (6)
app/src/main/java/ai/elimu/content_provider/room/dao/VideoDao.java (1)
35-36: Implementation looks goodThe new query method for loading videos by title follows the existing pattern in the DAO and is implemented correctly.
Consider whether you might need more flexible search capabilities in the future, such as case-insensitive or partial matching using
LIKE '%:title%'instead of exact matching.app/src/main/AndroidManifest.xml (1)
68-77: Provider implementation looks goodThe VideoContentProvider is properly registered in the manifest, following the same pattern as the other content providers, particularly the ImageContentProvider. The configuration includes the necessary attributes for sharing video files.
app/src/main/java/ai/elimu/content_provider/util/FileHelper.java (1)
50-59: Nice implementation of the new video file helper method.The method follows the same pattern as the existing image file helper methods, with proper null checks on
idandrevisionNumber. The@RestrictToannotation is correctly used to limit visibility to the library group.utils/src/main/java/ai/elimu/content_provider/utils/ContentProviderUtil.kt (1)
615-617: Appropriate UI thread handling for Toast messages.Good use of
withContext(Dispatchers.Main)to show the Toast message on the main thread, as UI operations must be performed on the main thread.app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.java (2)
46-116: Well-structured query implementation for different URI patterns.The query method implementation handles three different URI patterns correctly and follows good practices:
- Proper logging for debugging
- Null check for context
- Appropriate cursor handling with setNotificationUri
- Clear error messages for invalid URIs
22-44:✅ Verification successful
Check ContentProvider is registered in AndroidManifest.xml.
The implementation looks good but ensure this new ContentProvider is registered in the AndroidManifest.xml file.
Verify the provider registration with this script:
🏁 Script executed:
#!/bin/bash # Check if VideoContentProvider is registered in the AndroidManifest.xml # Look for VideoContentProvider in AndroidManifest.xml files echo "Checking for VideoContentProvider in AndroidManifest.xml files:" fd "AndroidManifest.xml" | xargs grep -l "VideoContentProvider" || echo "Not found in any AndroidManifest.xml"Length of output: 231
Provider registration verified – no further changes required.
The output confirms that
VideoContentProvideris registered inapp/src/main/AndroidManifest.xml.
| public static VideoGson getVideoGson(Cursor cursor) { | ||
| Log.i(TAG, "getVideoGson"); | ||
|
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||
| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames())); | ||
|
|
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| int columnId = cursor.getColumnIndex("id"); | ||
| Long id = cursor.getLong(columnId); | ||
| Log.i(TAG, "id: " + id); | ||
|
|
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| int columnRevisionNumber = cursor.getColumnIndex("revisionNumber"); | ||
| Integer revisionNumber = cursor.getInt(columnRevisionNumber); | ||
| Log.i(TAG, "revisionNumber: " + revisionNumber); | ||
|
|
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| int columnTitle = cursor.getColumnIndex("title"); | ||
| String title = cursor.getString(columnTitle); | ||
| Log.i(TAG, "title: \"" + title + "\""); | ||
|
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| int columnVideoFormat = cursor.getColumnIndex("videoFormat"); | ||
| String videoFormatAsString = cursor.getString(columnVideoFormat); | ||
| Log.i(TAG, "videoFormatAsString: " + videoFormatAsString); | ||
| VideoFormat videoFormat = VideoFormat.valueOf(videoFormatAsString); | ||
| Log.i(TAG, "videoFormat: " + videoFormat); | ||
|
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| VideoGson video = new VideoGson(); | ||
| video.setId(id); | ||
| video.setRevisionNumber(revisionNumber); | ||
| video.setTitle(title); | ||
| video.setVideoFormat(videoFormat); | ||
|
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| return video; | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add error handling for robustness
The converter method is missing error handling for several potential issues:
- No null check for the cursor parameter
- No handling for invalid column indices
- No exception handling for VideoFormat.valueOf()
Consider implementing these improvements:
public static VideoGson getVideoGson(Cursor cursor) {
Log.i(TAG, "getVideoGson");
+
+ if (cursor == null) {
+ Log.e(TAG, "Cursor is null");
+ return null;
+ }
Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames()));
int columnId = cursor.getColumnIndex("id");
+ if (columnId == -1) {
+ Log.e(TAG, "Column 'id' not found in cursor");
+ return null;
+ }
Long id = cursor.getLong(columnId);
Log.i(TAG, "id: " + id);
int columnRevisionNumber = cursor.getColumnIndex("revisionNumber");
+ if (columnRevisionNumber == -1) {
+ Log.e(TAG, "Column 'revisionNumber' not found in cursor");
+ return null;
+ }
Integer revisionNumber = cursor.getInt(columnRevisionNumber);
Log.i(TAG, "revisionNumber: " + revisionNumber);
int columnTitle = cursor.getColumnIndex("title");
+ if (columnTitle == -1) {
+ Log.e(TAG, "Column 'title' not found in cursor");
+ return null;
+ }
String title = cursor.getString(columnTitle);
Log.i(TAG, "title: \"" + title + "\"");
int columnVideoFormat = cursor.getColumnIndex("videoFormat");
+ if (columnVideoFormat == -1) {
+ Log.e(TAG, "Column 'videoFormat' not found in cursor");
+ return null;
+ }
String videoFormatAsString = cursor.getString(columnVideoFormat);
Log.i(TAG, "videoFormatAsString: " + videoFormatAsString);
+
+ VideoFormat videoFormat;
+ try {
videoFormat = VideoFormat.valueOf(videoFormatAsString);
+ } catch (IllegalArgumentException e) {
+ Log.e(TAG, "Invalid videoFormat: " + videoFormatAsString, e);
+ return null;
+ }
Log.i(TAG, "videoFormat: " + videoFormat);
VideoGson video = new VideoGson();
video.setId(id);
video.setRevisionNumber(revisionNumber);
video.setTitle(title);
video.setVideoFormat(videoFormat);
return video;
}📝 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.
| public static VideoGson getVideoGson(Cursor cursor) { | |
| Log.i(TAG, "getVideoGson"); | |
| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames())); | |
| int columnId = cursor.getColumnIndex("id"); | |
| Long id = cursor.getLong(columnId); | |
| Log.i(TAG, "id: " + id); | |
| int columnRevisionNumber = cursor.getColumnIndex("revisionNumber"); | |
| Integer revisionNumber = cursor.getInt(columnRevisionNumber); | |
| Log.i(TAG, "revisionNumber: " + revisionNumber); | |
| int columnTitle = cursor.getColumnIndex("title"); | |
| String title = cursor.getString(columnTitle); | |
| Log.i(TAG, "title: \"" + title + "\""); | |
| int columnVideoFormat = cursor.getColumnIndex("videoFormat"); | |
| String videoFormatAsString = cursor.getString(columnVideoFormat); | |
| Log.i(TAG, "videoFormatAsString: " + videoFormatAsString); | |
| VideoFormat videoFormat = VideoFormat.valueOf(videoFormatAsString); | |
| Log.i(TAG, "videoFormat: " + videoFormat); | |
| VideoGson video = new VideoGson(); | |
| video.setId(id); | |
| video.setRevisionNumber(revisionNumber); | |
| video.setTitle(title); | |
| video.setVideoFormat(videoFormat); | |
| return video; | |
| } | |
| public static VideoGson getVideoGson(Cursor cursor) { | |
| Log.i(TAG, "getVideoGson"); | |
| if (cursor == null) { | |
| Log.e(TAG, "Cursor is null"); | |
| return null; | |
| } | |
| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Arrays.toString(cursor.getColumnNames())); | |
| int columnId = cursor.getColumnIndex("id"); | |
| if (columnId == -1) { | |
| Log.e(TAG, "Column 'id' not found in cursor"); | |
| return null; | |
| } | |
| Long id = cursor.getLong(columnId); | |
| Log.i(TAG, "id: " + id); | |
| int columnRevisionNumber = cursor.getColumnIndex("revisionNumber"); | |
| if (columnRevisionNumber == -1) { | |
| Log.e(TAG, "Column 'revisionNumber' not found in cursor"); | |
| return null; | |
| } | |
| Integer revisionNumber = cursor.getInt(columnRevisionNumber); | |
| Log.i(TAG, "revisionNumber: " + revisionNumber); | |
| int columnTitle = cursor.getColumnIndex("title"); | |
| if (columnTitle == -1) { | |
| Log.e(TAG, "Column 'title' not found in cursor"); | |
| return null; | |
| } | |
| String title = cursor.getString(columnTitle); | |
| Log.i(TAG, "title: \"" + title + "\""); | |
| int columnVideoFormat = cursor.getColumnIndex("videoFormat"); | |
| if (columnVideoFormat == -1) { | |
| Log.e(TAG, "Column 'videoFormat' not found in cursor"); | |
| return null; | |
| } | |
| String videoFormatAsString = cursor.getString(columnVideoFormat); | |
| Log.i(TAG, "videoFormatAsString: " + videoFormatAsString); | |
| VideoFormat videoFormat; | |
| try { | |
| videoFormat = VideoFormat.valueOf(videoFormatAsString); | |
| } catch (IllegalArgumentException e) { | |
| Log.e(TAG, "Invalid videoFormat: " + videoFormatAsString, e); | |
| return null; | |
| } | |
| Log.i(TAG, "videoFormat: " + videoFormat); | |
| VideoGson video = new VideoGson(); | |
| video.setId(id); | |
| video.setRevisionNumber(revisionNumber); | |
| video.setTitle(title); | |
| video.setVideoFormat(videoFormat); | |
| return video; | |
| } |
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Actionable comments posted: 1
🧹 Nitpick comments (4)
utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt (4)
11-16: Adjust logging levels for production readiness.The current implementation uses INFO level for all logs, which is verbose for production code. Consider using DEBUG level for most of these logs to reduce noise in production environments.
- Log.i(TAG, "getVideoGson") + Log.d(TAG, "getVideoGson") - Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " + Log.d(TAG, "Arrays.toString(cursor.getColumnNames()): " + cursor.columnNames.contentToString())
19-33: Continue adjusting log levels throughout the class.The same logging issue applies to subsequent log statements. Consider using DEBUG for detailed tracing.
- Log.i(TAG, "id: $id") + Log.d(TAG, "id: $id") - Log.i(TAG, "revisionNumber: $revisionNumber") + Log.d(TAG, "revisionNumber: $revisionNumber") - Log.i(TAG, "title: \"$title\"") + Log.d(TAG, "title: \"$title\"") - Log.i(TAG, "videoFormatAsString: $videoFormatAsString") + Log.d(TAG, "videoFormatAsString: $videoFormatAsString") - Log.i(TAG, "videoFormat: $videoFormat") + Log.d(TAG, "videoFormat: $videoFormat")
11-43: Add KDoc documentation for better code understanding.The method lacks documentation explaining its purpose, parameters, return values, and possible exceptions.
Add KDoc to the method:
+ /** + * Converts a database Cursor to a VideoGson object. + * + * @param cursor A cursor positioned at the row containing video data + * @return A VideoGson object populated with data from the cursor + * @throws IllegalArgumentException If the cursor doesn't contain required columns or contains invalid data + */ fun getVideoGson(cursor: Cursor): VideoGson {
35-40: Consider using VideoGson constructor instead of property assignments.The current code creates an empty VideoGson instance and then sets each property individually. If VideoGson has a constructor with these properties, using it would be more concise.
- val video = VideoGson() - video.id = id - video.revisionNumber = revisionNumber - video.title = title - video.videoFormat = videoFormat + val video = VideoGson( + id = id, + revisionNumber = revisionNumber, + title = title, + videoFormat = videoFormat + )Note: If VideoGson doesn't have such a constructor, you can ignore this suggestion.
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utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt(1 hunks)
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- GitHub Check: build (windows-latest, 17)
- GitHub Check: build (macos-latest, 21)
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- GitHub Check: build (ubuntu-latest, 17)
| object CursorToVideoGsonConverter { | ||
| private val TAG: String = CursorToVideoGsonConverter::class.java.name | ||
|
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| fun getVideoGson(cursor: Cursor): VideoGson { | ||
| Log.i(TAG, "getVideoGson") | ||
|
|
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| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " | ||
| + cursor.columnNames.contentToString()) | ||
|
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| val columnId = cursor.getColumnIndex("id") | ||
| val id = cursor.getLong(columnId) | ||
| Log.i(TAG, "id: $id") | ||
|
|
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| val columnRevisionNumber = cursor.getColumnIndex("revisionNumber") | ||
| val revisionNumber = cursor.getInt(columnRevisionNumber) | ||
| Log.i(TAG, "revisionNumber: $revisionNumber") | ||
|
|
||
| val columnTitle = cursor.getColumnIndex("title") | ||
| val title = cursor.getString(columnTitle) | ||
| Log.i(TAG, "title: \"$title\"") | ||
|
|
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| val columnVideoFormat = cursor.getColumnIndex("videoFormat") | ||
| val videoFormatAsString = cursor.getString(columnVideoFormat) | ||
| Log.i(TAG, "videoFormatAsString: $videoFormatAsString") | ||
| val videoFormat = VideoFormat.valueOf(videoFormatAsString) | ||
| Log.i(TAG, "videoFormat: $videoFormat") | ||
|
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| val video = VideoGson() | ||
| video.id = id | ||
| video.revisionNumber = revisionNumber | ||
| video.title = title | ||
| video.videoFormat = videoFormat | ||
|
|
||
| return video | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add error handling and cursor validation.
The converter handles the basic cursor-to-model conversion well, but lacks error handling for several potential issues:
- No verification that the cursor is valid or positioned correctly before accessing data
- No handling for when column names don't exist in the cursor, which would cause
getColumnIndex()to return -1 - No exception handling for
VideoFormat.valueOf()which could throwIllegalArgumentExceptionif the string isn't a valid enum value
Consider adding the following safeguards:
fun getVideoGson(cursor: Cursor): VideoGson {
Log.i(TAG, "getVideoGson")
Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): "
+ cursor.columnNames.contentToString())
+ if (cursor.isBeforeFirst && !cursor.moveToFirst()) {
+ throw IllegalArgumentException("Cursor must be positioned on a valid row")
+ }
+
val columnId = cursor.getColumnIndex("id")
+ if (columnId == -1) {
+ throw IllegalArgumentException("Column 'id' not found in cursor")
+ }
val id = cursor.getLong(columnId)
Log.i(TAG, "id: $id")
val columnRevisionNumber = cursor.getColumnIndex("revisionNumber")
+ if (columnRevisionNumber == -1) {
+ throw IllegalArgumentException("Column 'revisionNumber' not found in cursor")
+ }
val revisionNumber = cursor.getInt(columnRevisionNumber)
Log.i(TAG, "revisionNumber: $revisionNumber")
val columnTitle = cursor.getColumnIndex("title")
+ if (columnTitle == -1) {
+ throw IllegalArgumentException("Column 'title' not found in cursor")
+ }
val title = cursor.getString(columnTitle)
Log.i(TAG, "title: \"$title\"")
val columnVideoFormat = cursor.getColumnIndex("videoFormat")
+ if (columnVideoFormat == -1) {
+ throw IllegalArgumentException("Column 'videoFormat' not found in cursor")
+ }
val videoFormatAsString = cursor.getString(columnVideoFormat)
Log.i(TAG, "videoFormatAsString: $videoFormatAsString")
- val videoFormat = VideoFormat.valueOf(videoFormatAsString)
+ val videoFormat = try {
+ VideoFormat.valueOf(videoFormatAsString)
+ } catch (e: IllegalArgumentException) {
+ Log.e(TAG, "Invalid video format: $videoFormatAsString", e)
+ throw IllegalArgumentException("Invalid video format: $videoFormatAsString", e)
+ }
Log.i(TAG, "videoFormat: $videoFormat")📝 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.
| object CursorToVideoGsonConverter { | |
| private val TAG: String = CursorToVideoGsonConverter::class.java.name | |
| fun getVideoGson(cursor: Cursor): VideoGson { | |
| Log.i(TAG, "getVideoGson") | |
| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " | |
| + cursor.columnNames.contentToString()) | |
| val columnId = cursor.getColumnIndex("id") | |
| val id = cursor.getLong(columnId) | |
| Log.i(TAG, "id: $id") | |
| val columnRevisionNumber = cursor.getColumnIndex("revisionNumber") | |
| val revisionNumber = cursor.getInt(columnRevisionNumber) | |
| Log.i(TAG, "revisionNumber: $revisionNumber") | |
| val columnTitle = cursor.getColumnIndex("title") | |
| val title = cursor.getString(columnTitle) | |
| Log.i(TAG, "title: \"$title\"") | |
| val columnVideoFormat = cursor.getColumnIndex("videoFormat") | |
| val videoFormatAsString = cursor.getString(columnVideoFormat) | |
| Log.i(TAG, "videoFormatAsString: $videoFormatAsString") | |
| val videoFormat = VideoFormat.valueOf(videoFormatAsString) | |
| Log.i(TAG, "videoFormat: $videoFormat") | |
| val video = VideoGson() | |
| video.id = id | |
| video.revisionNumber = revisionNumber | |
| video.title = title | |
| video.videoFormat = videoFormat | |
| return video | |
| } | |
| } | |
| object CursorToVideoGsonConverter { | |
| private val TAG: String = CursorToVideoGsonConverter::class.java.name | |
| fun getVideoGson(cursor: Cursor): VideoGson { | |
| Log.i(TAG, "getVideoGson") | |
| Log.i(TAG, "Arrays.toString(cursor.getColumnNames()): " | |
| + cursor.columnNames.contentToString()) | |
| if (cursor.isBeforeFirst && !cursor.moveToFirst()) { | |
| throw IllegalArgumentException("Cursor must be positioned on a valid row") | |
| } | |
| val columnId = cursor.getColumnIndex("id") | |
| if (columnId == -1) { | |
| throw IllegalArgumentException("Column 'id' not found in cursor") | |
| } | |
| val id = cursor.getLong(columnId) | |
| Log.i(TAG, "id: $id") | |
| val columnRevisionNumber = cursor.getColumnIndex("revisionNumber") | |
| if (columnRevisionNumber == -1) { | |
| throw IllegalArgumentException("Column 'revisionNumber' not found in cursor") | |
| } | |
| val revisionNumber = cursor.getInt(columnRevisionNumber) | |
| Log.i(TAG, "revisionNumber: $revisionNumber") | |
| val columnTitle = cursor.getColumnIndex("title") | |
| if (columnTitle == -1) { | |
| throw IllegalArgumentException("Column 'title' not found in cursor") | |
| } | |
| val title = cursor.getString(columnTitle) | |
| Log.i(TAG, "title: \"$title\"") | |
| val columnVideoFormat = cursor.getColumnIndex("videoFormat") | |
| if (columnVideoFormat == -1) { | |
| throw IllegalArgumentException("Column 'videoFormat' not found in cursor") | |
| } | |
| val videoFormatAsString = cursor.getString(columnVideoFormat) | |
| Log.i(TAG, "videoFormatAsString: $videoFormatAsString") | |
| val videoFormat = try { | |
| VideoFormat.valueOf(videoFormatAsString) | |
| } catch (e: IllegalArgumentException) { | |
| Log.e(TAG, "Invalid video format: $videoFormatAsString", e) | |
| throw IllegalArgumentException("Invalid video format: $videoFormatAsString", e) | |
| } | |
| Log.i(TAG, "videoFormat: $videoFormat") | |
| val video = VideoGson() | |
| video.id = id | |
| video.revisionNumber = revisionNumber | |
| video.title = title | |
| video.videoFormat = videoFormat | |
| return video | |
| } | |
| } |
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@coderabbitai Thanks. This has been fixed.
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@tuancoltech Great! I've verified that the error handling and cursor validation improvements have been implemented in the CursorToVideoGsonConverter. These changes make the code more robust by properly checking cursor position, validating column existence, and handling potential exceptions. This will help prevent crashes and improve the reliability of the video content provider. Nice work!
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# Check the current content of the CursorToVideoGsonConverter.kt file to verify the fix
cat utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt
Length of output: 2519
@tuancoltech Great! I've verified that the error handling and cursor validation improvements have been implemented in the CursorToVideoGsonConverter. These changes make the code more robust by properly checking cursor position, validating column existence, and handling potential exceptions. This will help prevent crashes and improve the reliability of the video content provider. Nice work!
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Actionable comments posted: 0
🧹 Nitpick comments (3)
app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.kt (3)
28-99: Consider supporting standard query parameters.
Thequerymethod ignores theprojection,selection,selectionArgs, andsortOrderparameters. This could limit flexibility and efficiency, especially if clients expect to filter or sort data. Passing these parameters to your DAO or handling them within the method would help align with standard ContentProvider usage.Here is an illustrative diff snippet:
- val cursor = videoDao.loadAllAsCursor() + val cursor = videoDao.loadAllAsCursor( + projection, + selection, + selectionArgs, + sortOrder + )
35-45: Use more selective logging in production.
AlthoughLog.i()is valuable for debugging, extensive logging can clutter logs in a production environment and potentially leak sensitive details. Consider usingLog.dor removing these statements before release.
104-109: Handle MIME type retrieval, if needed.
getTypecurrently throwsUnsupportedOperationException. If other parts of your system or third-party apps query this provider for an appropriate MIME type, implement the logic. Otherwise, remove or keep it documented as unsupported.
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app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.kt(1 hunks)
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🔇 Additional comments (5)
app/src/main/java/ai/elimu/content_provider/provider/VideoContentProvider.kt (5)
19-23: Implementation looks good.
TheonCreatemethod properly initializes the provider and logs its creation.
113-118: Document or implement insert operations.
insertthrowsUnsupportedOperationException, which is fine if the app won't support inserting videos through this provider. Consider documenting that this operation is unsupported, or implement it if you plan to enable insertions.
122-132: Clarify update operation steps.
Similarly, theupdatemethod is left unimplemented. If there's no plan to allow updates, you might want to remove or document why it's not supported. Otherwise, consider providing a partial or complete implementation.
136-141: Clarify delete operation steps.
deleteis currently not supported. If there's no intention to support deletions of video entries, explicitly document or remove the stub method. Otherwise, provide an implementation for completing this flow.
143-161: Verify storage and permissions for video files.
openFilereturns a read-only file descriptor. If these videos reside on external storage, ensure the provider or the app has requested and been granted the appropriate permissions. You may also want to handle potential runtime permission changes or user revocations more robustly.
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🧹 Nitpick comments (2)
utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt (2)
15-17: Consider a more robust cursor position check.Currently, this check only focuses on cursors that are before the first row. If the cursor is after the last row or already closed, this might go unnoticed until a column lookup fails. As a more robust alternative, consider simply calling
cursor.moveToFirst()unconditionally and verifying the return value to ensure there's at least one row.
52-58: Optional refactor for constructing theVideoGsonobject.The current property-by-property assignment is valid. Alternatively, if
VideoGsonhas a suitable constructor, consider creating and initializing it in one expression for slightly more concise code:return VideoGson( id = id, revisionNumber = revisionNumber, title = title, videoFormat = videoFormat )
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utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt(1 hunks)
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🔇 Additional comments (2)
utils/src/main/java/ai/elimu/content_provider/utils/converter/CursorToVideoGsonConverter.kt (2)
32-38: Verify handling of null column data.Even though the column is present, the value for "title" could still be
null. If the database contains rows with a null "title", the subsequent assignment and logging calls will throw a runtime error.Below is a potential safety check:
val title = cursor.getString(columnTitle) +if (title == null) { + throw IllegalArgumentException("Column 'title' cannot be null in the cursor row") +}Would you like to confirm whether "title" can be null in the database schema?
45-50: Well-implemented enum parsing with error handling.Catching
IllegalArgumentExceptionensures that the code doesn't silently fail when encountering unknown enum values. This robust approach avoids runtime crashes and helps diagnose malformed data promptly.
Implement VideoContentProvider
This serves Filamu's implementation: elimu-ai/filamu#3
Summary by CodeRabbit
New Features
Bug Fixes