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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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package org.apache.cassandra.io.sstable;
import java.io.ByteArrayOutputStream;
import java.io.ByteArrayInputStream;
import java.io.DataOutputStream;
import java.io.DataInputStream;
import java.io.File;
import java.io.IOException;
import org.junit.Test;
import org.apache.cassandra.db.commitlog.ReplayPosition;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.EstimatedHistogram;
public class SSTableMetadataSerializerTest
{
@Test
public void testSerialization() throws IOException
{
EstimatedHistogram rowSizes = new EstimatedHistogram(
new long[] { 1L, 2L },
new long[] { 3L, 4L, 5L });
EstimatedHistogram columnCounts = new EstimatedHistogram(
new long[] { 6L, 7L },
new long[] { 8L, 9L, 10L });
ReplayPosition rp = new ReplayPosition(11L, 12);
long maxTimestamp = 4162517136L;
SSTableMetadata.Collector collector = SSTableMetadata.createCollector()
.estimatedRowSize(rowSizes)
.estimatedColumnCount(columnCounts)
.replayPosition(rp);
collector.updateMaxTimestamp(maxTimestamp);
SSTableMetadata originalMetadata = collector.finalizeMetadata();
ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(byteOutput);
SSTableMetadata.serializer.serialize(originalMetadata, dos);
ByteArrayInputStream byteInput = new ByteArrayInputStream(byteOutput.toByteArray());
DataInputStream dis = new DataInputStream(byteInput);
Descriptor desc = new Descriptor(Descriptor.CURRENT_VERSION, new File("."), "", "", 0, false);
SSTableMetadata stats = SSTableMetadata.serializer.deserialize(dis, desc);
assert stats.getEstimatedRowSize().equals(originalMetadata.getEstimatedRowSize());
assert stats.getEstimatedRowSize().equals(rowSizes);
assert stats.getEstimatedColumnCount().equals(originalMetadata.getEstimatedColumnCount());
assert stats.getEstimatedColumnCount().equals(columnCounts);
assert stats.getReplayPosition().equals(originalMetadata.getReplayPosition());
assert stats.getReplayPosition().equals(rp);
assert stats.getMaxTimestamp() == maxTimestamp;
assert stats.getMaxTimestamp() == originalMetadata.getMaxTimestamp();
}
}