Examples with COSObject com.qcloud.cos.model.COSObject used on opensource projects

Example 21 with COSObject

use of com.qcloud.cos.model.COSObject in project alluxio by Alluxio.

the class COSInputStream method createStream.

@Override
protected InputStream createStream(long startPos, long endPos) throws IOException {
    GetObjectRequest req = new GetObjectRequest(mBucketName, mKey);
    // COS returns entire object if we read past the end
    req.setRange(startPos, endPos < mContentLength ? endPos - 1 : mContentLength - 1);
    CosServiceException lastException = null;
    String errorMessage = String.format("Failed to open key: %s bucket: %s", mKey, mBucketName);
    while (mRetryPolicy.attempt()) {
        try {
            COSObject object = mCosClient.getObject(req);
            return new BufferedInputStream(object.getObjectContent());
        } catch (CosServiceException e) {
            errorMessage = String.format("Failed to open key: %s bucket: %s attempts: %d error: %s", mKey, mBucketName, mRetryPolicy.getAttemptCount(), e.getMessage());
            if (e.getStatusCode() != HttpStatus.SC_NOT_FOUND) {
                throw new IOException(errorMessage, e);
            }
            // Key does not exist
            lastException = e;
        }
    }
    // Failed after retrying key does not exist
    throw new IOException(errorMessage, lastException);
}