private int findLatestIndex() throws IOException {
ImmutableMap<String, BlobMetaData> blobs = metaDataBlobContainer.listBlobsByPrefix("metadata-");
int index = -1;
for (BlobMetaData md : blobs.values()) {
if (logger.isTraceEnabled()) {
logger.trace("[findLatestMetadata]: Processing [" + md.name() + "]");
}
String name = md.name();
int fileIndex = Integer.parseInt(name.substring(name.indexOf('-') + 1));
if (fileIndex >= index) {
// try and read the meta data
byte[] data = null;
try {
data = metaDataBlobContainer.readBlobFully(name);
readMetaData(data);
index = fileIndex;
} catch (IOException e) {
logger.warn(
"[findLatestMetadata]: failed to read metadata from [{}], data_length [{}] ignoring...",
e,
name,
data == null ? "na" : data.length);
}
}
}
return index;
}
