public void testHistogramEncoding() //throws Exception
{
ShortHistogram shortHistogram = new ShortHistogram(highestTrackableValue, 3);
IntHistogram intHistogram = new IntHistogram(highestTrackableValue, 3);
Histogram histogram = new Histogram(highestTrackableValue, 3);
AtomicHistogram atomicHistogram = new AtomicHistogram(highestTrackableValue, 3);
SynchronizedHistogram synchronizedHistogram = new SynchronizedHistogram(highestTrackableValue, 3);
for (int i = 0; i < 10000; i++)
{
shortHistogram.recordValueWithExpectedInterval(1000 /* 1 msec */, 10000 /* 10 msec expected interval */);
intHistogram.recordValueWithExpectedInterval(2000 /* 1 msec */, 10000 /* 10 msec expected interval */);
histogram.recordValueWithExpectedInterval(3000 /* 1 msec */, 10000 /* 10 msec expected interval */);
atomicHistogram.recordValueWithExpectedInterval(4000 /* 1 msec */, 10000 /* 10 msec expected interval */);
synchronizedHistogram.recordValueWithExpectedInterval(5000 /* 1 msec */, 10000 /* 10 msec expected interval */);
}
Console.WriteLine("\n\nTesting encoding of a ShortHistogram:");
ByteBuffer targetBuffer = ByteBuffer.allocate(shortHistogram.getNeededByteBufferCapacity());
shortHistogram.encodeIntoByteBuffer(targetBuffer);
//Console.WriteLine("After ENCODING TargetBuffer length = {0} (position {1}), shortHistogram size = {2}",
// targetBuffer.capacity(), targetBuffer.position(), shortHistogram.getTotalCount());
targetBuffer.rewind();
ShortHistogram shortHistogram2 = ShortHistogram.decodeFromByteBuffer(targetBuffer, 0);
Assert.assertEquals(shortHistogram, shortHistogram2);
ByteBuffer targetCompressedBuffer = ByteBuffer.allocate(shortHistogram.getNeededByteBufferCapacity());
shortHistogram.encodeIntoCompressedByteBuffer(targetCompressedBuffer);
targetCompressedBuffer.rewind();
ShortHistogram shortHistogram3 = ShortHistogram.decodeFromCompressedByteBuffer(targetCompressedBuffer, 0);
Assert.assertEquals(shortHistogram, shortHistogram3);
Console.WriteLine("\n\nTesting encoding of a IntHistogram:");
targetBuffer = ByteBuffer.allocate(intHistogram.getNeededByteBufferCapacity());
intHistogram.encodeIntoByteBuffer(targetBuffer);
//Console.WriteLine("After ENCODING TargetBuffer length = {0} (position = {1}), intHistogram size = {2}",
// targetBuffer.capacity(), targetBuffer.position(), intHistogram.getTotalCount());
targetBuffer.rewind();
IntHistogram intHistogram2 = IntHistogram.decodeFromByteBuffer(targetBuffer, 0);
Assert.assertEquals(intHistogram, intHistogram2);
targetCompressedBuffer = ByteBuffer.allocate(intHistogram.getNeededByteBufferCapacity());
intHistogram.encodeIntoCompressedByteBuffer(targetCompressedBuffer);
targetCompressedBuffer.rewind();
IntHistogram intHistogram3 = IntHistogram.decodeFromCompressedByteBuffer(targetCompressedBuffer, 0);
Assert.assertEquals(intHistogram, intHistogram3);
Console.WriteLine("\n\nTesting encoding of a Histogram (long):");
targetBuffer = ByteBuffer.allocate(histogram.getNeededByteBufferCapacity());
histogram.encodeIntoByteBuffer(targetBuffer);
//Console.WriteLine("After ENCODING TargetBuffer length = {0} (position = {1}), histogram size = {2}",
// targetBuffer.capacity(), targetBuffer.position(), histogram.getTotalCount());
targetBuffer.rewind();
Histogram histogram2 = Histogram.decodeFromByteBuffer(targetBuffer, 0);
Assert.assertEquals(histogram, histogram2);
targetCompressedBuffer = ByteBuffer.allocate(histogram.getNeededByteBufferCapacity());
histogram.encodeIntoCompressedByteBuffer(targetCompressedBuffer);
targetCompressedBuffer.rewind();
Histogram histogram3 = Histogram.decodeFromCompressedByteBuffer(targetCompressedBuffer, 0);
Assert.assertEquals(histogram, histogram3);
Console.WriteLine("\n\nTesting encoding of a AtomicHistogram (long):");
targetBuffer = ByteBuffer.allocate(atomicHistogram.getNeededByteBufferCapacity());
atomicHistogram.encodeIntoByteBuffer(targetBuffer);
//Console.WriteLine("After ENCODING TargetBuffer length = {0} (position {1}), atomicHistogram size = {2}",
// targetBuffer.capacity(), targetBuffer.position(), atomicHistogram.getTotalCount());
targetBuffer.rewind();
AtomicHistogram atomicHistogram2 = AtomicHistogram.decodeFromByteBuffer(targetBuffer, 0);
Assert.assertEquals(atomicHistogram, atomicHistogram2);
targetCompressedBuffer = ByteBuffer.allocate(atomicHistogram.getNeededByteBufferCapacity());
atomicHistogram.encodeIntoCompressedByteBuffer(targetCompressedBuffer);
targetCompressedBuffer.rewind();
AtomicHistogram atomicHistogram3 = AtomicHistogram.decodeFromCompressedByteBuffer(targetCompressedBuffer, 0);
Assert.assertEquals(atomicHistogram, atomicHistogram3);
Console.WriteLine("\n\nTesting encoding of a SynchronizedHistogram:");
targetBuffer = ByteBuffer.allocate(synchronizedHistogram.getNeededByteBufferCapacity());
synchronizedHistogram.encodeIntoByteBuffer(targetBuffer);
//Console.WriteLine("After ENCODING TargetBuffer length = {0} (position {1}), synchronizedHistogram size = {2}",
// targetBuffer.capacity(), targetBuffer.position(), synchronizedHistogram.getTotalCount());
targetBuffer.rewind();
SynchronizedHistogram synchronizedHistogram2 = SynchronizedHistogram.decodeFromByteBuffer(targetBuffer, 0);
Assert.assertEquals(synchronizedHistogram, synchronizedHistogram2);
targetCompressedBuffer = ByteBuffer.allocate(synchronizedHistogram.getNeededByteBufferCapacity());
synchronizedHistogram.encodeIntoCompressedByteBuffer(targetCompressedBuffer);
targetCompressedBuffer.rewind();
SynchronizedHistogram synchronizedHistogram3 = SynchronizedHistogram.decodeFromCompressedByteBuffer(targetCompressedBuffer, 0);
Assert.assertEquals(synchronizedHistogram, synchronizedHistogram3);
}