@Override
public UploadResult uploadBackup(
Exhibitor exhibitor,
BackupMetaData backup,
File source,
final Map<String, String> configValues)
throws Exception {
List<BackupMetaData> availableBackups = getAvailableBackups(exhibitor, configValues);
if (availableBackups.contains(backup)) {
return UploadResult.DUPLICATE;
}
RetryPolicy retryPolicy = makeRetryPolicy(configValues);
Throttle throttle = makeThrottle(configValues);
String key = toKey(backup);
InitiateMultipartUploadRequest initRequest =
new InitiateMultipartUploadRequest(configValues.get(CONFIG_BUCKET.getKey()), key);
InitiateMultipartUploadResult initResponse = s3Client.initiateMultipartUpload(initRequest);
CompressorIterator compressorIterator = compressor.compress(source);
try {
List<PartETag> eTags = Lists.newArrayList();
int index = 0;
for (; ; ) {
ByteBuffer chunk = compressorIterator.next();
if (chunk == null) {
break;
}
throttle.throttle(chunk.limit());
PartETag eTag = uploadChunkWithRetry(chunk, initResponse, index++, retryPolicy);
eTags.add(eTag);
}
completeUpload(initResponse, eTags);
} catch (Exception e) {
abortUpload(initResponse);
throw e;
} finally {
Closeables.closeQuietly(compressorIterator);
}
UploadResult result = UploadResult.SUCCEEDED;
for (BackupMetaData existing : availableBackups) {
if (existing.getName().equals(backup.getName())) {
deleteBackup(exhibitor, existing, configValues);
result = UploadResult.REPLACED_OLD_VERSION;
}
}
return result;
}
private String toKey(BackupMetaData backup) {
String name = backup.getName().replace(SEPARATOR, SEPARATOR_REPLACEMENT);
return name + SEPARATOR + backup.getModifiedDate();
}