/// <exception cref="System.Exception"/>
public virtual void TestBadLength()
{
int Dlen = 100;
DataOutputBuffer dob = new DataOutputBuffer(Dlen + 4);
IFileOutputStream ifos = new IFileOutputStream(dob);
for (int i = 0; i < Dlen; ++i)
{
ifos.Write(i);
}
ifos.Close();
DataInputBuffer dib = new DataInputBuffer();
dib.Reset(dob.GetData(), Dlen + 4);
IFileInputStream ifis = new IFileInputStream(dib, 100, new Configuration());
int i_1 = 0;
try
{
while (i_1 < Dlen - 8)
{
NUnit.Framework.Assert.AreEqual(i_1++, ifis.Read());
}
ifis.Close();
}
catch (ChecksumException)
{
NUnit.Framework.Assert.AreEqual("Checksum before close", i_1, Dlen - 8);
return;
}
Fail("Did not detect bad data in checksum");
}
/// <summary>Construct an IFile Reader.</summary>
/// <param name="conf">Configuration File</param>
/// <param name="in">The input stream</param>
/// <param name="length">
/// Length of the data in the stream, including the checksum
/// bytes.
/// </param>
/// <param name="codec">codec</param>
/// <param name="readsCounter">Counter for records read from disk</param>
/// <exception cref="System.IO.IOException"/>
public Reader(Configuration conf, FSDataInputStream @in, long length, CompressionCodec
codec, Counters.Counter readsCounter)
{
// Count records read from disk
// Possibly decompressed stream that we read
readRecordsCounter = readsCounter;
checksumIn = new IFileInputStream(@in, length, conf);
if (codec != null)
{
decompressor = CodecPool.GetDecompressor(codec);
if (decompressor != null)
{
this.@in = codec.CreateInputStream(checksumIn, decompressor);
}
else
{
Log.Warn("Could not obtain decompressor from CodecPool");
this.@in = checksumIn;
}
}
else
{
this.@in = checksumIn;
}
this.dataIn = new DataInputStream(this.@in);
this.fileLength = length;
if (conf != null)
{
bufferSize = conf.GetInt("io.file.buffer.size", DefaultBufferSize);
}
}
/// <exception cref="System.Exception"/>
public virtual void TestBadIFileStream()
{
int Dlen = 100;
DataOutputBuffer dob = new DataOutputBuffer(Dlen + 4);
IFileOutputStream ifos = new IFileOutputStream(dob);
for (int i = 0; i < Dlen; ++i)
{
ifos.Write(i);
}
ifos.Close();
DataInputBuffer dib = new DataInputBuffer();
byte[] b = dob.GetData();
++b[17];
dib.Reset(b, Dlen + 4);
IFileInputStream ifis = new IFileInputStream(dib, 104, new Configuration());
int i_1 = 0;
try
{
while (i_1 < Dlen)
{
if (17 == i_1)
{
NUnit.Framework.Assert.AreEqual(18, ifis.Read());
}
else
{
NUnit.Framework.Assert.AreEqual(i_1, ifis.Read());
}
++i_1;
}
ifis.Close();
}
catch (ChecksumException)
{
NUnit.Framework.Assert.AreEqual("Unexpected bad checksum", Dlen - 1, i_1);
return;
}
Fail("Did not detect bad data in checksum");
}
/// <exception cref="System.Exception"/>
public virtual void TestIFileStream()
{
int Dlen = 100;
DataOutputBuffer dob = new DataOutputBuffer(Dlen + 4);
IFileOutputStream ifos = new IFileOutputStream(dob);
for (int i = 0; i < Dlen; ++i)
{
ifos.Write(i);
}
ifos.Close();
DataInputBuffer dib = new DataInputBuffer();
dib.Reset(dob.GetData(), Dlen + 4);
IFileInputStream ifis = new IFileInputStream(dib, 104, new Configuration());
for (int i_1 = 0; i_1 < Dlen; ++i_1)
{
NUnit.Framework.Assert.AreEqual(i_1, ifis.Read());
}
ifis.Close();
}
