//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private int swapIn(org.neo4j.io.fs.StoreChannel channel, long bufferAddress, int bufferSize, long fileOffset, int filePageSize) throws java.io.IOException
private int SwapIn(StoreChannel channel, long bufferAddress, int bufferSize, long fileOffset, int filePageSize)
{
int readTotal = 0;
try
{
ByteBuffer bufferProxy = Proxy(bufferAddress, filePageSize);
int read;
do
{
read = channel.Read(bufferProxy, fileOffset + readTotal);
} while (read != -1 && (readTotal += read) < filePageSize);
// Zero-fill the rest.
Debug.Assert(readTotal >= 0 && filePageSize <= bufferSize && readTotal <= filePageSize, format("pointer = %h, readTotal = %s, length = %s, page size = %s", bufferAddress, readTotal, filePageSize, bufferSize));
UnsafeUtil.setMemory(bufferAddress + readTotal, filePageSize - readTotal, MuninnPageCache.ZERO_BYTE);
return(readTotal);
}
catch (IOException e)
{
throw e;
}
catch (Exception e)
{
string msg = format("Read failed after %s of %s bytes from fileOffset %s", readTotal, filePageSize, fileOffset);
throw new IOException(msg, e);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private static void readStore(org.neo4j.io.fs.FileSystemAbstraction fileSystem, org.neo4j.kernel.impl.store.RecordStore store, long fromId, long toId, java.util.regex.Pattern pattern) throws java.io.IOException
private static void ReadStore(FileSystemAbstraction fileSystem, RecordStore store, long fromId, long toId, Pattern pattern)
{
toId = Math.Min(toId, store.HighId);
using (StoreChannel channel = fileSystem.Open(store.StorageFile, OpenMode.READ))
{
int recordSize = store.RecordSize;
ByteBuffer buf = ByteBuffer.allocate(recordSize);
for (long i = fromId; i <= toId; i++)
{
buf.clear();
long offset = recordSize * i;
int count = channel.Read(buf, offset);
if (count == -1)
{
break;
}
sbyte[] bytes = new sbyte[count];
buf.clear();
buf.get(bytes);
string hex = HexString.encodeHexString(bytes);
int paddingNeeded = (recordSize * 2 - Math.Max(count * 2, 0)) + 1;
string format = "%s %6s 0x%08X %s%" + paddingNeeded + "s%s%n";
string str;
string use;
try
{
AbstractBaseRecord record = RecordStore.getRecord(store, i, CHECK);
use = record.InUse() ? "+" : "-";
str = record.ToString();
}
catch (InvalidRecordException)
{
str = StringHelper.NewString(bytes, 0, count, "ASCII");
use = "?";
}
if (pattern == null || pattern.matcher(str).find())
{
_console.printf(format, use, i, offset, hex, " ", str);
}
}
}
}
private static void VerifyFileIsEitherEmptyOrContainsLongIntegerValueOne(StoreChannel channel)
{
try
{
long claimedSize = channel.size();
ByteBuffer buffer = allocate(8);
channel.Read(buffer, 0);
buffer.flip();
if (claimedSize == 8)
{
assertEquals(1, buffer.Long);
}
else
{
assertThrows(typeof(BufferUnderflowException), buffer.getLong, "Should have thrown an exception");
}
}
catch (IOException e)
{
throw new Exception(e);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public int read(ByteBuffer dst, long position) throws java.io.IOException
public override int Read(ByteBuffer dst, long position)
{
return(@delegate.Read(dst, Offset(position)));
}