/// <summary>Creates a file of the specified size with random data. </summary>
private void CreateRandomFile(Directory dir, System.String name, int size)
{
OutputStream os = dir.CreateFile(name);
for (int i = 0; i < size; i++)
{
byte b = (byte)(((new System.Random()).NextDouble()) * 256);
os.WriteByte(b);
}
os.Close();
}
/// <summary>Creates a file of the specified size with sequential data. The first
/// byte is written as the start byte provided. All subsequent bytes are
/// computed as start + offset where offset is the number of the byte.
/// </summary>
private void CreateSequenceFile(Directory dir, System.String name, byte start, int size)
{
OutputStream os = dir.CreateFile(name);
for (int i = 0; i < size; i++)
{
os.WriteByte(start);
start++;
}
os.Close();
}
private void Demo_FSInputStreamBug(FSDirectory fsdir, System.String file)
{
// Setup the test file - we need more than 1024 bytes
OutputStream os = fsdir.CreateFile(file);
for (int i = 0; i < 2000; i++)
{
os.WriteByte((byte)i);
}
os.Close();
InputStream in_Renamed = fsdir.OpenFile(file);
// This read primes the buffer in InputStream
byte b = in_Renamed.ReadByte();
// Close the file
in_Renamed.Close();
// ERROR: this call should fail, but succeeds because the buffer
// is still filled
b = in_Renamed.ReadByte();
// ERROR: this call should fail, but succeeds for some reason as well
in_Renamed.Seek(1099);
try
{
// OK: this call correctly fails. We are now past the 1024 internal
// buffer, so an actual IO is attempted, which fails
b = in_Renamed.ReadByte();
}
catch (System.IO.IOException e)
{
}
catch (System.Exception)
{
}
}
public static void Test(int count, bool ram)
{
System.Random gen = new System.Random((System.Int32) 1251971);
int i;
System.DateTime veryStart = System.DateTime.Now;
System.DateTime start = System.DateTime.Now;
Directory store;
if (ram)
{
store = new RAMDirectory();
}
else
{
store = FSDirectory.GetDirectory("test.store", true);
}
int LENGTH_MASK = 0xFFF;
for (i = 0; i < count; i++)
{
System.String name = i + ".dat";
int length = gen.Next() & LENGTH_MASK;
byte b = (byte)(gen.Next() & 0x7F);
//System.out.println("filling " + name + " with " + length + " of " + b);
OutputStream file = store.CreateFile(name);
for (int j = 0; j < length; j++)
{
file.WriteByte(b);
}
file.Close();
}
store.Close();
System.DateTime end = System.DateTime.Now;
System.Console.Out.Write(end.Ticks - start.Ticks);
System.Console.Out.WriteLine(" total milliseconds to create");
gen = new System.Random((System.Int32) 1251971);
start = System.DateTime.Now;
if (!ram)
{
store = FSDirectory.GetDirectory("test.store", false);
}
for (i = 0; i < count; i++)
{
System.String name = i + ".dat";
int length = gen.Next() & LENGTH_MASK;
sbyte b = (sbyte)(gen.Next() & 0x7F);
//System.out.println("reading " + name + " with " + length + " of " + b);
InputStream file = store.OpenFile(name);
if (file.Length() != length)
{
throw new System.Exception("length incorrect");
}
for (int j = 0; j < length; j++)
{
if (file.ReadByte() != b)
{
throw new System.Exception("contents incorrect");
}
}
file.Close();
}
end = System.DateTime.Now;
System.Console.Out.Write(end.Ticks - start.Ticks);
System.Console.Out.WriteLine(" total milliseconds to read");
gen = new System.Random((System.Int32) 1251971);
start = System.DateTime.Now;
for (i = 0; i < count; i++)
{
System.String name = i + ".dat";
//System.out.println("deleting " + name);
store.DeleteFile(name);
}
end = System.DateTime.Now;
System.Console.Out.Write(end.Ticks - start.Ticks);
System.Console.Out.WriteLine(" total milliseconds to delete");
System.Console.Out.Write(end.Ticks - veryStart.Ticks);
System.Console.Out.WriteLine(" total milliseconds");
store.Close();
}