/// <exception cref="System.IO.IOException"/>
private static void CodecTest(Configuration conf, int seed, int count, string codecClass
)
{
// Create the codec
CompressionCodec codec = null;
try
{
codec = (CompressionCodec)ReflectionUtils.NewInstance(conf.GetClassByName(codecClass
), conf);
}
catch (TypeLoadException)
{
throw new IOException("Illegal codec!");
}
Log.Info("Created a Codec object of type: " + codecClass);
// Generate data
DataOutputBuffer data = new DataOutputBuffer();
RandomDatum.Generator generator = new RandomDatum.Generator(seed);
for (int i = 0; i < count; ++i)
{
generator.Next();
RandomDatum key = generator.GetKey();
RandomDatum value = generator.GetValue();
key.Write(data);
value.Write(data);
}
Log.Info("Generated " + count + " records");
// Compress data
DataOutputBuffer compressedDataBuffer = new DataOutputBuffer();
CompressionOutputStream deflateFilter = codec.CreateOutputStream(compressedDataBuffer
);
DataOutputStream deflateOut = new DataOutputStream(new BufferedOutputStream(deflateFilter
));
deflateOut.Write(data.GetData(), 0, data.GetLength());
deflateOut.Flush();
deflateFilter.Finish();
Log.Info("Finished compressing data");
// De-compress data
DataInputBuffer deCompressedDataBuffer = new DataInputBuffer();
deCompressedDataBuffer.Reset(compressedDataBuffer.GetData(), 0, compressedDataBuffer
.GetLength());
CompressionInputStream inflateFilter = codec.CreateInputStream(deCompressedDataBuffer
);
DataInputStream inflateIn = new DataInputStream(new BufferedInputStream(inflateFilter
));
// Check
DataInputBuffer originalData = new DataInputBuffer();
originalData.Reset(data.GetData(), 0, data.GetLength());
DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData
));
for (int i_1 = 0; i_1 < count; ++i_1)
{
RandomDatum k1 = new RandomDatum();
RandomDatum v1 = new RandomDatum();
k1.ReadFields(originalIn);
v1.ReadFields(originalIn);
RandomDatum k2 = new RandomDatum();
RandomDatum v2 = new RandomDatum();
k2.ReadFields(inflateIn);
v2.ReadFields(inflateIn);
Assert.True("original and compressed-then-decompressed-output not equal"
, k1.Equals(k2) && v1.Equals(v2));
// original and compressed-then-decompressed-output have the same hashCode
IDictionary <RandomDatum, string> m = new Dictionary <RandomDatum, string>();
m[k1] = k1.ToString();
m[v1] = v1.ToString();
string result = m[k2];
Assert.Equal("k1 and k2 hashcode not equal", result, k1.ToString
());
result = m[v2];
Assert.Equal("v1 and v2 hashcode not equal", result, v1.ToString
());
}
// De-compress data byte-at-a-time
originalData.Reset(data.GetData(), 0, data.GetLength());
deCompressedDataBuffer.Reset(compressedDataBuffer.GetData(), 0, compressedDataBuffer
.GetLength());
inflateFilter = codec.CreateInputStream(deCompressedDataBuffer);
// Check
originalIn = new DataInputStream(new BufferedInputStream(originalData));
int expected;
do
{
expected = originalIn.Read();
Assert.Equal("Inflated stream read by byte does not match", expected
, inflateFilter.Read());
}while (expected != -1);
Log.Info("SUCCESS! Completed checking " + count + " records");
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="GeneralSecurityException"/>
private void CryptoCodecTest(Configuration conf, int seed, int count, string encCodecClass
, string decCodecClass, byte[] iv)
{
CryptoCodec encCodec = null;
try
{
encCodec = (CryptoCodec)ReflectionUtils.NewInstance(conf.GetClassByName(encCodecClass
), conf);
}
catch (TypeLoadException)
{
throw new IOException("Illegal crypto codec!");
}
Log.Info("Created a Codec object of type: " + encCodecClass);
// Generate data
DataOutputBuffer data = new DataOutputBuffer();
RandomDatum.Generator generator = new RandomDatum.Generator(seed);
for (int i = 0; i < count; ++i)
{
generator.Next();
RandomDatum key = generator.GetKey();
RandomDatum value = generator.GetValue();
key.Write(data);
value.Write(data);
}
Log.Info("Generated " + count + " records");
// Encrypt data
DataOutputBuffer encryptedDataBuffer = new DataOutputBuffer();
CryptoOutputStream @out = new CryptoOutputStream(encryptedDataBuffer, encCodec, bufferSize
, key, iv);
@out.Write(data.GetData(), 0, data.GetLength());
@out.Flush();
@out.Close();
Log.Info("Finished encrypting data");
CryptoCodec decCodec = null;
try
{
decCodec = (CryptoCodec)ReflectionUtils.NewInstance(conf.GetClassByName(decCodecClass
), conf);
}
catch (TypeLoadException)
{
throw new IOException("Illegal crypto codec!");
}
Log.Info("Created a Codec object of type: " + decCodecClass);
// Decrypt data
DataInputBuffer decryptedDataBuffer = new DataInputBuffer();
decryptedDataBuffer.Reset(encryptedDataBuffer.GetData(), 0, encryptedDataBuffer.GetLength
());
CryptoInputStream @in = new CryptoInputStream(decryptedDataBuffer, decCodec, bufferSize
, key, iv);
DataInputStream dataIn = new DataInputStream(new BufferedInputStream(@in));
// Check
DataInputBuffer originalData = new DataInputBuffer();
originalData.Reset(data.GetData(), 0, data.GetLength());
DataInputStream originalIn = new DataInputStream(new BufferedInputStream(originalData
));
for (int i_1 = 0; i_1 < count; ++i_1)
{
RandomDatum k1 = new RandomDatum();
RandomDatum v1 = new RandomDatum();
k1.ReadFields(originalIn);
v1.ReadFields(originalIn);
RandomDatum k2 = new RandomDatum();
RandomDatum v2 = new RandomDatum();
k2.ReadFields(dataIn);
v2.ReadFields(dataIn);
Assert.True("original and encrypted-then-decrypted-output not equal"
, k1.Equals(k2) && v1.Equals(v2));
// original and encrypted-then-decrypted-output have the same hashCode
IDictionary <RandomDatum, string> m = new Dictionary <RandomDatum, string>();
m[k1] = k1.ToString();
m[v1] = v1.ToString();
string result = m[k2];
Assert.Equal("k1 and k2 hashcode not equal", result, k1.ToString
());
result = m[v2];
Assert.Equal("v1 and v2 hashcode not equal", result, v1.ToString
());
}
// Decrypt data byte-at-a-time
originalData.Reset(data.GetData(), 0, data.GetLength());
decryptedDataBuffer.Reset(encryptedDataBuffer.GetData(), 0, encryptedDataBuffer.GetLength
());
@in = new CryptoInputStream(decryptedDataBuffer, decCodec, bufferSize, key, iv);
// Check
originalIn = new DataInputStream(new BufferedInputStream(originalData));
int expected;
do
{
expected = originalIn.Read();
Assert.Equal("Decrypted stream read by byte does not match", expected
, @in.Read());
}while (expected != -1);
// Seek to a certain position and decrypt
originalData.Reset(data.GetData(), 0, data.GetLength());
decryptedDataBuffer.Reset(encryptedDataBuffer.GetData(), 0, encryptedDataBuffer.GetLength
());
@in = new CryptoInputStream(new TestCryptoStreams.FakeInputStream(decryptedDataBuffer
), decCodec, bufferSize, key, iv);
int seekPos = data.GetLength() / 3;
@in.Seek(seekPos);
// Check
TestCryptoStreams.FakeInputStream originalInput = new TestCryptoStreams.FakeInputStream
(originalData);
originalInput.Seek(seekPos);
do
{
expected = originalInput.Read();
Assert.Equal("Decrypted stream read by byte does not match", expected
, @in.Read());
}while (expected != -1);
Log.Info("SUCCESS! Completed checking " + count + " records");
// Check secure random generator
TestSecureRandom(encCodec);
}