/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013 Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package io.druid.segment.data;
import com.google.common.io.OutputSupplier;
import io.druid.collections.ResourceHolder;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
@RunWith(Parameterized.class)
public class CompressedFloatsSupplierSerializerTest extends CompressionStrategyTest
{
public CompressedFloatsSupplierSerializerTest(CompressedObjectStrategy.CompressionStrategy compressionStrategy)
{
super(compressionStrategy);
}
@Test
public void testSanity() throws Exception
{
final ByteOrder order = ByteOrder.nativeOrder();
final int sizePer = 999;
CompressedFloatsSupplierSerializer serializer = new CompressedFloatsSupplierSerializer(
sizePer,
new GenericIndexedWriter<ResourceHolder<FloatBuffer>>(
new IOPeonForTesting(),
"test",
CompressedFloatBufferObjectStrategy.getBufferForOrder(
order,
compressionStrategy,
sizePer
)
),
compressionStrategy
);
serializer.open();
final int numElements = 10000;
for (int i = 0; i < numElements; ++i) {
serializer.add((float) i);
}
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
serializer.closeAndConsolidate(
new OutputSupplier<OutputStream>()
{
@Override
public OutputStream getOutput() throws IOException
{
return baos;
}
}
);
IndexedFloats floats = CompressedFloatsIndexedSupplier
.fromByteBuffer(ByteBuffer.wrap(baos.toByteArray()), order)
.get();
Assert.assertEquals(numElements, floats.size());
for (int i = 0; i < numElements; ++i) {
Assert.assertEquals((float) i, floats.get(i), 0.0f);
}
floats.close();
}
}