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modify DropboxManager.java #20

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modify DropboxManager.java #20

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31 changes: 28 additions & 3 deletions src/de/seblii/serverbackup/utils/DropboxManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,33 @@ public void uploadToDropbox(String filePath) {

String des = ServerBackup.getInstance().getConfig().getString("CloudBackup.Options.Destination").replaceAll("/", "");
try (InputStream in = new FileInputStream(filePath)) {
FileMetadata metadata = client.files().uploadBuilder("/" + (des.equals("") ? "" : des + "/") + file.getName()).uploadAndFinish(in);
// Step 1: Upload session start
UploadSessionStartUploader uploadSessionStart = client.files().uploadSessionStart();
UploadSessionStartResult uploadSessionStartResult = uploadSessionStart.uploadAndFinish(in);
String sessionId = uploadSessionStartResult.getSessionId();

// Step 2: Upload large file in chunks
long fileSize = file.length();
byte[] buffer = new byte[4 * 1000 * 1000]; // 4 MB chunk size
long uploaded = 0;

int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(buffer, 0, bytesRead);
UploadSessionCursor cursor = new UploadSessionCursor(sessionId, uploaded);

// Append data to the session
client.files().uploadSessionAppendV2(cursor).uploadAndFinish(byteArrayInputStream, bytesRead);
uploaded += bytesRead;
}

// Step 3: Upload session finish
UploadSessionCursor cursor = new UploadSessionCursor(sessionId, fileSize);
CommitInfo commitInfo = CommitInfo.newBuilder("/" + (des.equals("") ? "" : des + "/") + file.getName())
.withClientModified(new Date())
.withMode(WriteMode.ADD)
.build();
FileMetadata metadata = client.files().uploadSessionFinish(cursor, commitInfo).finish();
} catch (UploadErrorException e) {
throw new RuntimeException(e);
} catch (IOException e) {
Expand All @@ -82,5 +108,4 @@ public void uploadToDropbox(String filePath) {
}
}
}

}
}