#pragma warning disable 1591
override public bool TryGetValue(string rowKey, string colKey, out TValue value)
#pragma warning restore 1591
{
int colIndex = ColSerialNumbers.GetOld(colKey);
ThreadLocalStream.Position = RowKeyToFilePosition[rowKey] + colIndex * BytesPerValue;
byte[] byteArray = new byte[BytesPerValue];
int bytesRead = ThreadLocalStream.Read(byteArray, 0, BytesPerValue);
Helper.CheckCondition(bytesRead == BytesPerValue, Properties.Resource.ExpectedToReadAllBytesOfValue);
value = ByteArrayToValueOrMissing(byteArray);
return(!IsMissing(value));
}
#pragma warning disable 1591
public override void SetValueOrMissing(string rowKey, string colKey, TValue value)
#pragma warning restore 1591
{
if (IsMissing(value))
{
TValue oldValue;
if (TryGetValue(rowKey, colKey, out oldValue)) //Is there a (non-missing) value?
{
//Yes, there is
var storeList = RowKeyToStoreList[rowKey];
int colIndex = ColSerialNumbers.GetOld(colKey);
lock (storeList) //To be thread-safe, we have to lock the whole row for writes
{
if (colIndex < storeList.Count)
{
storeList[colIndex] = StoreMissingValue;
}
}
}
}
else
{
var storeList = RowKeyToStoreList[rowKey];
int colIndex = ColSerialNumbers.GetOld(colKey);
lock (storeList) //To be thread-safe, we have to lock the whole row for writes
{
if (colIndex >= storeList.Count)
{
storeList.AddRange(Enumerable.Repeat(StoreMissingValue, ColSerialNumbers.Count - storeList.Count));
}
storeList[colIndex] = ValueToStore(value);
}
}
}
protected void GetInstanceFromRowKeysStructFileNameInternal(string rowKeysStructFileName, ParallelOptions parallelOptions, FileAccess fileAccess = FileAccess.Read, FileShare fileShare = FileShare.Read)
{
// parallelOptions is not currently used, but it is need so that this method will have the same signature as other, similar methods.
lock (this)
{
string firstLineOrNull = FileUtils.ReadLine(rowKeysStructFileName);
Helper.CheckCondition(null != firstLineOrNull, Properties.Resource.ExpectedFileToHaveData, rowKeysStructFileName);
Helper.CheckCondition(!firstLineOrNull.StartsWith(FileUtils.CommentHeader, StringComparison.Ordinal), Properties.Resource.ExpectedNoCommentsInRowKeysAnsiFiles, rowKeysStructFileName);
RowKeyToFilePosition = new Dictionary <string, long>();
FileAccess = fileAccess;
FileShare = fileShare;
using (TextReader textReader = File.OpenText(rowKeysStructFileName))
{
string colKeysLineOrNull = textReader.ReadLine();
string[] varAndColKeys = colKeysLineOrNull.Split('\t');
if (!varAndColKeys[0].Equals("rowKey"))
{
throw new MatrixFormatException("Expect first row's first value to be 'rowKey'"); //!!!rowKey
}
ColSerialNumbers = new SerialNumbers <string>(varAndColKeys.Skip(1));
_rowKeys = new List <string>();
if (null == colKeysLineOrNull)
{
throw new MatrixFormatException("Surprised by empty file. " + rowKeysStructFileName);
}
//!!!not really thread-safe
string denseStructFileNameInFile = textReader.ReadLine();
DenseStructFileName = Path.Combine(Path.GetDirectoryName(rowKeysStructFileName), denseStructFileNameInFile);
CounterWithMessages counterWithMessages = new CounterWithMessages("Reading rowKey file to find location of rows, #{0}", 10000, null);
string line = null;
while (null != (line = textReader.ReadLine()))
{
counterWithMessages.Increment();
string[] rowKeyAndPosition = line.Split('\t');
if (rowKeyAndPosition.Length != 2)
{
throw new MatrixFormatException("Expect rows to have two columns");
}
string rowKey = rowKeyAndPosition[0];
long position = long.Parse(rowKeyAndPosition[1], CultureInfo.CurrentCulture);
_rowKeys.Add(rowKey);
RowKeyToFilePosition.Add(rowKey, position);
}
}
Console.WriteLine("all lines read from file [{0}]", rowKeysStructFileName);
_indexOfRowKey = RowKeys.Select((key, index) => new { key, index }).ToDictionary(keyAndIndex => keyAndIndex.key, keyAndIndex => keyAndIndex.index);
Console.WriteLine("Dictionary created. Now testing values");
//Test that can really read values from data file
if (RowCount > 0 && ColCount > 0)
{
//!!!kludge - try up to 10 times to get a good value
GetValueOrMissing(0, 0);
//Console.WriteLine("GetValueOrMissing(0,0)={0} tested", value0);
int rowCount = RowCount;
//Console.WriteLine("rowCount is {0}", rowCount);
int colCount = ColCount;
//Console.WriteLine("colCount is {0}", colCount);
string rowKey = RowKeys[rowCount - 1];
//Console.WriteLine("rowKey is {0}", rowKey);
string colKey = ColKeys[colCount - 1];
//Console.WriteLine("colKey is {0}", colKey);
int colIndex = ColSerialNumbers.GetOld(colKey);
//Console.WriteLine("colIndex is {0}", colIndex);
byte[] byteArray = new byte[23]; //C# will init to 0's
//!!!kludge - try up to 10 times to get a good value
for (int i = 0; i < 10; ++i)
{
ThreadLocalStream.Position = 0;
ThreadLocalStream.Position = RowKeyToFilePosition[rowKey] + colIndex * BytesPerValue;
//Console.WriteLine("ThreadLocalStream.Position is {0}", ThreadLocalStream.Position);
byteArray = new byte[BytesPerValue];
int bytesRead = ThreadLocalStream.Read(byteArray, 0, BytesPerValue);
//Console.WriteLine("byteArray[0] is {0}", (int)byteArray[0]);
//Console.WriteLine("bytesRead is {0}", bytesRead);
if ((int)byteArray[0] != 0)
{
break;
}
//Console.WriteLine("Read a 0 instead of a 32, going to sleep for 10 seconds");
Thread.Sleep(10000);
Helper.CheckCondition(bytesRead == BytesPerValue, "Expected to read all the bytes of a value");
//Console.WriteLine("expected bytes read");
}
//string asString = System.Text.Encoding.Default.GetString(byteArray);
//Console.WriteLine("bytes to string is {0}", asString);
//TValue valueLast = Parser.Parse<TValue>(asString);
//Console.WriteLine("value is {0}", valueLast);
//Helper.CheckCondition(!valueLast.Equals(MissingValue), "Should not be missing"); //OK to use Equals because double can't be null
GetValueOrMissing(RowCount / 2, ColCount / 2);
//Console.WriteLine("GetValueOrMissing({0}, {1})={2} tested", RowCount / 2, ColCount / 2, valueMiddle);
}
//Console.WriteLine("Values tested. Done");
}
}
private void OldBadValueTester(string rowKeysStructFileName)
{
Console.WriteLine("Dictionary created. Now testing values");
//Test that can really read values from data file
if (RowCount > 0 && ColCount > 0)
{
try
{
//!!!kludge - try up to 10 times to get a good value
for (int i = 0; i < 10; ++i)
{
}
TValue value0 = this[0, 0];
Console.WriteLine("this[0, 0] tested");
int rowCount = RowCount;
Console.WriteLine("rowCount is {0}", rowCount);
int colCount = ColCount;
Console.WriteLine("colCount is {0}", colCount);
string rowKey = RowKeys[rowCount - 1];
Console.WriteLine("rowKey is {0}", rowKey);
string colKey = ColKeys[colCount - 1];
Console.WriteLine("colKey is {0}", colKey);
int colIndex = ColSerialNumbers.GetOld(colKey);
Console.WriteLine("colIndex is {0}", colIndex);
byte[] byteArray = new byte[23]; //C# will init to 0's
//!!!kludge - try up to 10 times to get a good value
for (int i = 0; i < 10; ++i)
{
ThreadLocalStream.Position = 0;
ThreadLocalStream.Position = RowKeyToFilePosition[rowKey] + colIndex * BytesPerValue;
Console.WriteLine("ThreadLocalStream.Position is {0}", ThreadLocalStream.Position);
byteArray = new byte[BytesPerValue];
int bytesRead = ThreadLocalStream.Read(byteArray, 0, BytesPerValue);
Console.WriteLine("byteArray[0] is {0}", (int)byteArray[0]);
Console.WriteLine("bytesRead is {0}", bytesRead);
if ((int)byteArray[0] != 0)
{
break;
}
Console.WriteLine("Read a 0 instead of a 32, going to sleep for 10 seconds");
Thread.Sleep(10000);
Helper.CheckCondition(bytesRead == BytesPerValue, "Expected to read all the bytes of a value");
Console.WriteLine("expected bytes read");
}
string asString = System.Text.Encoding.UTF8.GetString(byteArray, 0, byteArray.Length);
Console.WriteLine("bytes to string is ", asString);
//double valueLast = double.Parse(asString);
//Console.WriteLine("value is {0}", valueLast);
//Helper.CheckCondition(!valueLast.Equals(MissingValue), "Should not be missing"); //OK to use Equals because double can't be null
TValue valueMiddle = this[RowCount / 2, ColCount / 2];
Console.WriteLine("this[{0}, {1}] tested", RowCount / 2, ColCount / 2);
}
catch (Exception e)
{
throw new MatrixFormatException("RowKeyIndex seems to refer to a file of the wrong format. " + rowKeysStructFileName, e);
}
}
Console.WriteLine("Values tested. Done");
}
