@Override
public void downloadBackup(
Exhibitor exhibitor,
BackupMetaData backup,
File destination,
Map<String, String> configValues)
throws Exception {
S3Object object = s3Client.getObject(configValues.get(CONFIG_BUCKET.getKey()), toKey(backup));
long startMs = System.currentTimeMillis();
RetryPolicy retryPolicy = makeRetryPolicy(configValues);
int retryCount = 0;
boolean done = false;
while (!done) {
Throttle throttle = makeThrottle(configValues);
InputStream in = null;
FileOutputStream out = null;
try {
out = new FileOutputStream(destination);
in = object.getObjectContent();
FileChannel channel = out.getChannel();
CompressorIterator compressorIterator = compressor.decompress(in);
for (; ; ) {
ByteBuffer bytes = compressorIterator.next();
if (bytes == null) {
break;
}
throttle.throttle(bytes.limit());
channel.write(bytes);
}
done = true;
} catch (Exception e) {
if (!retryPolicy.allowRetry(retryCount++, System.currentTimeMillis() - startMs)) {
done = true;
}
} finally {
Closeables.closeQuietly(in);
Closeables.closeQuietly(out);
}
}
}
