public async Task <IBucket> CreateBucket(BucketAddress address)
{
var res = new Bucket(address, bucketStoreFactory);
await res.Init();
return(res);
}
public Stream OpenRead(BucketAddress bucketAddress)
{
if (streams.TryGetValue(bucketAddress, out NCS stream))
{
return(new MemoryStream(stream.Data));
}
return(streams[bucketAddress] = new NCS());
}
public Stream OpenRead(BucketAddress bucketAddress)
{
var fileName = BucketPath(bucketAddress);
if (!File.Exists(fileName))
{
return(null);
}
return(new FileStream(fileName, FileMode.Open, FileAccess.Read));
}
public Stream OpenWrite(BucketAddress bucketAddress)
{
var fileName = BucketPath(bucketAddress);
var folder = Path.GetDirectoryName(fileName);
if (!Directory.Exists(folder))
{
Directory.CreateDirectory(folder);
}
return(new FileStream(fileName, FileMode.Create));
}
public async Task <string> ReadEntry(ulong address)
{
var baddr = new BucketAddress
{
TrainId = address.TrainId(),
BagId = address.BagId(),
BucketId = address.Index() / BagInfo.BagSettings.PerBucketMessages
};
var bucket = await GetBucket(baddr);
return(await bucket
.GetEntry(address.Index() % BagInfo.BagSettings.PerBucketMessages));
}
async Task <IBucket> GetBucket(BucketAddress address)
{
IBucket bucket;
if (currentBucket != null && currentBucket.Value.Bucket.Info.Equals(address))
{
bucket = currentBucket.Value.Bucket;
}
else
{
if (!buckets.TryGetValue(address, out bucket))
{
bucket = buckets[address] = await bucketFactory.CreateBucket(address);
}
}
return(bucket);
}
public ZipStore(BucketAddress address, IBucketStreamProvider bucketStreamProvider)
{
this.address = address;
this.bucketStreamProvider = bucketStreamProvider;
}
string BucketPath(BucketAddress bucketAddress)
{
return(Path.Combine(bucketsFolderPath,
$"{bucketAddress.TrainId:D3}/{bucketAddress.BagId:D3}/{bucketAddress.BucketId:D3}"));
}
public Task <IBucketStore> CreateStore(BucketAddress info)
{
return(Task.FromResult <IBucketStore>(new ZipStore(info, bucketStreamProvider)));
}
public Bucket(BucketAddress bucketInfo,
IBucketStoreFactory bucketStoreFactory)
{
this.Info = bucketInfo;
this.bucketStoreFactory = bucketStoreFactory;
}
public Stream OpenWrite(BucketAddress bucketAddress)
{
return(streams[bucketAddress] = new NCS());
}
