Examples with KeyAlreadyExistsException backtype.storm.generated.KeyAlreadyExistsException used on opensource projects

Example 1 with KeyAlreadyExistsException

use of backtype.storm.generated.KeyAlreadyExistsException in project jstorm by alibaba.

the class BlobStoreUtils method downloadMissingBlob.

// Download missing blobs from potential nimbodes
public static boolean downloadMissingBlob(Map conf, BlobStore blobStore, String key, Set<NimbusInfo> nimbusInfos) throws TTransportException {
    NimbusClient client;
    ReadableBlobMeta rbm;
    ClientBlobStore remoteBlobStore;
    InputStreamWithMeta in;
    boolean isSuccess = false;
    LOG.debug("Download blob NimbusInfos {}", nimbusInfos);
    for (NimbusInfo nimbusInfo : nimbusInfos) {
        if (isSuccess) {
            break;
        }
        try {
            client = new NimbusClient(conf, nimbusInfo.getHost(), nimbusInfo.getPort(), null);
            rbm = client.getClient().getBlobMeta(key);
            remoteBlobStore = new NimbusBlobStore();
            remoteBlobStore.setClient(conf, client);
            in = remoteBlobStore.getBlob(key);
            blobStore.createBlob(key, in, rbm.get_settable());
            // if key already exists while creating the blob else update it
            Iterator<String> keyIterator = blobStore.listKeys();
            while (keyIterator.hasNext()) {
                if (keyIterator.next().equals(key)) {
                    LOG.debug("Success creating key, {}", key);
                    isSuccess = true;
                    break;
                }
            }
        } catch (IOException exception) {
            throw new RuntimeException(exception);
        } catch (KeyAlreadyExistsException kae) {
            LOG.info("KeyAlreadyExistsException Key: {} {}", key, kae);
        } catch (KeyNotFoundException knf) {
            // Catching and logging KeyNotFoundException because, if
            // there is a subsequent update and delete, the non-leader
            // nimbodes might throw an exception.
            LOG.info("KeyNotFoundException Key: {} {}", key, knf);
        } catch (Exception exp) {
            // Logging an exception while client is connecting
            LOG.error("Exception ", exp);
        }
    }
    if (!isSuccess) {
        LOG.error("Could not download blob with key " + key);
    }
    return isSuccess;
}