org.apache.cassandra.db.compaction.LeveledCompactionTask Maven / Gradle / Ivy
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package org.apache.cassandra.db.compaction;
import java.util.Set;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.Directories;
import org.apache.cassandra.db.compaction.writers.CompactionAwareWriter;
import org.apache.cassandra.db.compaction.writers.MajorLeveledCompactionWriter;
import org.apache.cassandra.db.compaction.writers.MaxSSTableSizeWriter;
import org.apache.cassandra.io.sstable.format.SSTableReader;
import org.apache.cassandra.db.lifecycle.LifecycleTransaction;
public class LeveledCompactionTask extends CompactionTask
{
private final int level;
private final long maxSSTableBytes;
private final boolean majorCompaction;
public LeveledCompactionTask(ColumnFamilyStore cfs, LifecycleTransaction txn, int level, int gcBefore, long maxSSTableBytes, boolean majorCompaction)
{
super(cfs, txn, gcBefore);
this.level = level;
this.maxSSTableBytes = maxSSTableBytes;
this.majorCompaction = majorCompaction;
}
@Override
public CompactionAwareWriter getCompactionAwareWriter(ColumnFamilyStore cfs,
Directories directories,
LifecycleTransaction txn,
Set nonExpiredSSTables)
{
if (majorCompaction)
return new MajorLeveledCompactionWriter(cfs, directories, txn, nonExpiredSSTables, maxSSTableBytes, false);
return new MaxSSTableSizeWriter(cfs, directories, txn, nonExpiredSSTables, maxSSTableBytes, getLevel(), false);
}
@Override
protected boolean partialCompactionsAcceptable()
{
return level == 0;
}
protected int getLevel()
{
return level;
}
}