public void AddBlock(StoredBlock block)
{
JoinCurrentTransaction();
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
repo.InsertBlock(block);
}
}
public StoredBlock AddBlockContent(byte[] hash, byte[] content)
{
JoinCurrentTransaction();
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
//todo: what if there is no such block or it already has content ?
return repo.AddBlockContent(hash, content);
}
}
public void AddUnspentOutput(UnspentOutput unspentOutput)
{
JoinCurrentTransaction();
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
repo.AddUnspentOutput(unspentOutput);
}
}
public List<StoredBlock> GetOldestBlocksWithoutContent(int maxCount)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.GetOldestBlocksWithoutContent(maxCount);
}
}
public void RemoveUnspentOutput(byte[] transactionHash, int outputNumber)
{
JoinCurrentTransaction();
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
repo.RemoveUnspentOutput(transactionHash, outputNumber);
}
}
public List<StoredBlock> GetBlocksByHeight(int[] heights)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.ReadHeadersWithHeight(heights);
}
}
public BlockLocator GetCurrentChainLocator()
{
List<StoredBlock> headers = new List<StoredBlock>();
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
StoredBlock lastBlock = repo.GetLastBlockHeader();
if (lastBlock != null)
{
headers = repo.ReadHeadersWithHeight(BlockLocator.GetRequiredBlockHeights(lastBlock.Height));
}
}
BlockLocator locator = new BlockLocator();
foreach (StoredBlock header in headers)
{
locator.AddHash(header.Height, header.Hash);
}
return locator;
}
public List<UnspentOutput> FindUnspentOutputs(byte[] transactionHash)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.FindUnspentOutputs(transactionHash);
}
}
// todo: add test
public byte[] GetBlockContent(byte[] hash)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
//todo: what if there is no such block or it already has content ?
return repo.GetBlockContent(hash);
}
}
public Subchain FindSubchain(byte[] hash, int length)
{
//todo: move this method to InternalBlockchain ?
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
StoredBlock block = repo.FindBlockByHash(hash);
if (block == null)
{
return null;
}
List<StoredBlock> blocks = new List<StoredBlock>();
blocks.Add(block);
for (int i = 1; i < length; i++)
{
if (block.Header.IsFirst)
{
//genesis block is reached;
break;
}
block = repo.FindBlockByHash(block.Header.PrevBlock);
if (block == null)
{
throw new InvalidOperationException("The storage has a chain that starts with an invalid genesis block.");
}
blocks.Add(block);
}
blocks.Reverse();
return new Subchain(blocks);
}
}
public StoredBlock FindFirst(BlockSelector selector)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.FindFirst(selector);
}
}
public StoredBlock FindBlockByHeight(int height)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
//todo: rewrite this method
List<StoredBlock> blocks = repo.ReadHeadersWithHeight(new int[] {height});
if (!blocks.Any())
{
return null;
}
return blocks[0];
}
}
public StoredBlock FindBlockByHash(byte[] hash)
{
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.FindBlockByHash(hash);
}
}
public List<StoredBlock> Find(BlockSelector selector, int count)
{
if (count <= 0 || count > 256)
{
throw new ArgumentException($"The parameter '{nameof(count)}' is not within its bounds.", nameof(count));
}
using (BlockchainRepository repo = new BlockchainRepository(conn))
{
return repo.Find(selector, count);
}
}