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Merge pull request #11124 from nextcloud/fix/upload-worker-infinite-loop
Fix infinite loop in upload worker
This commit is contained in:
Álvaro Brey
GitHub
commit
66c617828a
2 changed files with 123 additions and 91 deletions
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@ -78,21 +78,24 @@ class FilesUploadWorker(
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return Result.failure() // user account is needed
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}
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// get all pending uploads
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var currentAndPendingUploadsForAccount =
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uploadsStorageManager.getCurrentAndPendingUploadsForAccount(MAX_UPLOADS_QUERY, accountName)
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while (currentAndPendingUploadsForAccount.isNotEmpty()) {
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Log_OC.d(TAG, "Handling ${currentAndPendingUploadsForAccount.size} uploads for account $accountName")
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handlePendingUploads(currentAndPendingUploadsForAccount, accountName)
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currentAndPendingUploadsForAccount =
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uploadsStorageManager.getCurrentAndPendingUploadsForAccount(MAX_UPLOADS_QUERY, accountName)
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/*
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* As pages are retrieved by sorting uploads by ID, if new uploads are added while uploading the current ones,
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* they will be present in the pages that follow.
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*/
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var currentPage = uploadsStorageManager.getCurrentAndPendingUploadsForAccountPageAscById(-1, accountName)
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while (currentPage.isNotEmpty()) {
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Log_OC.d(TAG, "Handling ${currentPage.size} uploads for account $accountName")
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val lastId = currentPage.last().uploadId
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handlePendingUploads(currentPage, accountName)
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currentPage =
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uploadsStorageManager.getCurrentAndPendingUploadsForAccountPageAscById(lastId, accountName)
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}
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Log_OC.d(TAG, "No more pending uploads for account $accountName, stopping work")
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return Result.success()
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}
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private fun handlePendingUploads(uploads: Array<OCUpload>, accountName: String) {
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private fun handlePendingUploads(uploads: List<OCUpload>, accountName: String) {
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val user = userAccountManager.getUser(accountName)
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for (upload in uploads) {
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@ -240,7 +243,6 @@ class FilesUploadWorker(
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companion object {
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val TAG: String = FilesUploadWorker::class.java.simpleName
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private const val MAX_UPLOADS_QUERY = 100
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private const val FOREGROUND_SERVICE_ID: Int = 412
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private const val MAX_PROGRESS: Int = 100
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const val ACCOUNT = "data_account"
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@ -56,8 +56,7 @@ import androidx.annotation.Nullable;
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import androidx.annotation.VisibleForTesting;
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/**
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* Database helper for storing list of files to be uploaded, including status
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* information for each file.
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* Database helper for storing list of files to be uploaded, including status information for each file.
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*/
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public class UploadsStorageManager extends Observable {
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private static final String TAG = UploadsStorageManager.class.getSimpleName();
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@ -65,6 +64,8 @@ public class UploadsStorageManager extends Observable {
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private static final String AND = " AND ";
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private static final int SINGLE_RESULT = 1;
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private static final long QUERY_PAGE_SIZE = 100;
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private final ContentResolver contentResolver;
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private final CurrentAccountProvider currentAccountProvider;
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@ -364,61 +365,19 @@ public class UploadsStorageManager extends Observable {
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}
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private OCUpload[] getUploads(@Nullable String selection, @Nullable String... selectionArgs) {
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return getUploads(0, selection, selectionArgs);
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}
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private OCUpload[] getUploads(final int limit, @Nullable String selection, @Nullable String... selectionArgs) {
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ArrayList<OCUpload> uploads = new ArrayList<>();
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final long pageSize = 100;
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final List<OCUpload> uploads = new ArrayList<>();
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long page = 0;
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long rowsRead;
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long rowsTotal = 0;
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long lastRowID = -1;
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do {
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String pageSelection = selection;
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String[] pageSelectionArgs = selectionArgs;
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if (page > 0 && lastRowID >= 0) {
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if (selection != null) {
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pageSelection = "(" + selection + ") AND _id < ?";
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} else {
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pageSelection = "_id < ?";
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final List<OCUpload> uploadsPage = getUploadPage(lastRowID, selection, selectionArgs);
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rowsRead = uploadsPage.size();
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rowsTotal += rowsRead;
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if (!uploadsPage.isEmpty()) {
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lastRowID = uploadsPage.get(uploadsPage.size() - 1).getUploadId();
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}
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if (selectionArgs != null) {
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pageSelectionArgs = Arrays.copyOf(selectionArgs, selectionArgs.length + 1);
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} else {
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pageSelectionArgs = new String[1];
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}
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pageSelectionArgs[pageSelectionArgs.length - 1] = String.valueOf(lastRowID);
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Log_OC.d(TAG, String.format(Locale.ENGLISH, "QUERY: %s ROWID: %d", pageSelection, lastRowID));
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} else {
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Log_OC.d(TAG, String.format(Locale.ENGLISH, "QUERY: %s ROWID: %d", selection, lastRowID));
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}
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rowsRead = 0;
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Cursor c = getDB().query(
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ProviderTableMeta.CONTENT_URI_UPLOADS,
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null,
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pageSelection,
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pageSelectionArgs,
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String.format(Locale.ENGLISH, "_id DESC LIMIT %d", pageSize)
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);
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if (c != null) {
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if (c.moveToFirst()) {
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do {
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rowsRead++;
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rowsTotal++;
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lastRowID = c.getLong(c.getColumnIndexOrThrow(ProviderTableMeta._ID));
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OCUpload upload = createOCUploadFromCursor(c);
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if (upload == null) {
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Log_OC.e(TAG, "OCUpload could not be created from cursor");
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} else {
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uploads.add(upload);
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}
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} while (c.moveToNext() && !c.isAfterLast());
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}
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c.close();
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Log_OC.v(TAG, String.format(Locale.ENGLISH,
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"getUploads() got %d rows from page %d, %d rows total so far, last ID %d",
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rowsRead,
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@ -426,15 +385,10 @@ public class UploadsStorageManager extends Observable {
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rowsTotal,
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lastRowID
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));
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page += 1;
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} else {
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break;
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}
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} while (rowsRead > 0 && (limit <= 0 || rowsRead < limit));
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uploads.addAll(uploadsPage);
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page++;
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} while (rowsRead > 0);
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if (limit > 0 && uploads.size() > limit) {
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uploads = new ArrayList<>(uploads.subList(0, limit));
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}
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Log_OC.v(TAG, String.format(Locale.ENGLISH,
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"getUploads() returning %d (%d) rows after reading %d pages",
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@ -447,6 +401,67 @@ public class UploadsStorageManager extends Observable {
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return uploads.toArray(new OCUpload[0]);
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}
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@NonNull
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private List<OCUpload> getUploadPage(final long afterId, @Nullable String selection, @Nullable String... selectionArgs) {
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return getUploadPage(afterId, true, selection, selectionArgs);
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}
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@NonNull
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private List<OCUpload> getUploadPage(final long afterId, final boolean descending, @Nullable String selection, @Nullable String... selectionArgs) {
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List<OCUpload> uploads = new ArrayList<>();
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String pageSelection = selection;
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String[] pageSelectionArgs = selectionArgs;
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String idComparator;
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String sortDirection;
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if (descending) {
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sortDirection = "DESC";
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idComparator = "<";
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} else {
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sortDirection = "ASC";
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idComparator = ">";
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}
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if (afterId >= 0) {
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if (selection != null) {
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pageSelection = "(" + selection + ") AND _id " + idComparator + " ?";
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} else {
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pageSelection = "_id " + idComparator + " ?";
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}
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if (selectionArgs != null) {
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pageSelectionArgs = Arrays.copyOf(selectionArgs, selectionArgs.length + 1);
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} else {
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pageSelectionArgs = new String[1];
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}
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pageSelectionArgs[pageSelectionArgs.length - 1] = String.valueOf(afterId);
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Log_OC.d(TAG, String.format(Locale.ENGLISH, "QUERY: %s ROWID: %d", pageSelection, afterId));
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} else {
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Log_OC.d(TAG, String.format(Locale.ENGLISH, "QUERY: %s ROWID: %d", selection, afterId));
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}
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Cursor c = getDB().query(
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ProviderTableMeta.CONTENT_URI_UPLOADS,
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null,
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pageSelection,
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pageSelectionArgs,
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String.format(Locale.ENGLISH, "_id " + sortDirection + " LIMIT %d", QUERY_PAGE_SIZE)
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);
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if (c != null) {
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if (c.moveToFirst()) {
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do {
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OCUpload upload = createOCUploadFromCursor(c);
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if (upload == null) {
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Log_OC.e(TAG, "OCUpload could not be created from cursor");
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} else {
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uploads.add(upload);
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}
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} while (c.moveToNext() && !c.isAfterLast());
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}
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c.close();
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}
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return uploads;
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}
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private OCUpload createOCUploadFromCursor(Cursor c) {
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OCUpload upload = null;
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if (c != null) {
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@ -484,11 +499,7 @@ public class UploadsStorageManager extends Observable {
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}
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public OCUpload[] getCurrentAndPendingUploadsForAccount(final @NonNull String accountName) {
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return getCurrentAndPendingUploadsForAccount(0, accountName);
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}
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public OCUpload[] getCurrentAndPendingUploadsForAccount(final int limit, final @NonNull String accountName) {
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return getUploads(limit, ProviderTableMeta.UPLOADS_STATUS + "==" + UploadStatus.UPLOAD_IN_PROGRESS.value +
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return getUploads(ProviderTableMeta.UPLOADS_STATUS + "==" + UploadStatus.UPLOAD_IN_PROGRESS.value +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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"==" + UploadResult.DELAYED_FOR_WIFI.getValue() +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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@ -501,6 +512,25 @@ public class UploadsStorageManager extends Observable {
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accountName);
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}
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/**
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* Gets a page of uploads after <code>afterId</code>, where uploads are sorted by ascending upload id.
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* <p>
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* If <code>afterId</code> is -1, returns the first page
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*/
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public List<OCUpload> getCurrentAndPendingUploadsForAccountPageAscById(final long afterId, final @NonNull String accountName) {
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final String selection = ProviderTableMeta.UPLOADS_STATUS + "==" + UploadStatus.UPLOAD_IN_PROGRESS.value +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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"==" + UploadResult.DELAYED_FOR_WIFI.getValue() +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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"==" + UploadResult.LOCK_FAILED.getValue() +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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"==" + UploadResult.DELAYED_FOR_CHARGING.getValue() +
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" OR " + ProviderTableMeta.UPLOADS_LAST_RESULT +
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"==" + UploadResult.DELAYED_IN_POWER_SAVE_MODE.getValue() +
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" AND " + ProviderTableMeta.UPLOADS_ACCOUNT_NAME + "== ?";
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return getUploadPage(afterId, false, selection, accountName);
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}
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/**
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* Get all failed uploads.
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*/
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