How to use

getView

method

in

org.apache.cassandra.db.lifecycle.Tracker

public ViewFragment select(Function<View, Iterable<SSTableReader>> filter)
{
  View view = data.getView();
  List<SSTableReader> sstables = Lists.newArrayList(filter.apply(view));
  return new ViewFragment(sstables, view.getAllMemtables());
}

  public Integer getValue()
  {
    return cfs.getTracker().getView().liveSSTables().size();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getLiveDataSize();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getOperations();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getLiveDataSize();
  }
});

private static Collection<SSTableReader> sstablesInBounds(ColumnFamilyStore cfs, Collection<Range<Token>> tokenRangeCollection)
{
  final Set<SSTableReader> sstables = new HashSet<>();
  Iterable<SSTableReader> liveTables = cfs.getTracker().getView().select(SSTableSet.LIVE);
  SSTableIntervalTree tree = SSTableIntervalTree.build(liveTables);
  for (Range<Token> tokenRange : tokenRangeCollection)
  {
    Iterable<SSTableReader> ssTableReaders = View.sstablesInBounds(tokenRange.left.minKeyBound(), tokenRange.right.maxKeyBound(), tree);
    Iterables.addAll(sstables, ssTableReaders);
  }
  return sstables;
}

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getLiveDataSize();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getLiveDataSize();
    return size;
  }
});

public ViewFragment select(Function<View, Iterable<SSTableReader>> filter)
{
  View view = data.getView();
  List<SSTableReader> sstables = Lists.newArrayList(filter.apply(view));
  return new ViewFragment(sstables, view.getAllMemtables());
}

  public Long getValue()
  {
    long memtablePartitions = 0;
    for (Memtable memtable : cfs.getTracker().getView().getAllMemtables())
      memtablePartitions += memtable.partitionCount();
    return SSTableReader.getApproximateKeyCount(cfs.getSSTables(SSTableSet.CANONICAL)) + memtablePartitions;
  }
});

private static Collection<SSTableReader> sstablesInBounds(ColumnFamilyStore cfs, Collection<Range<Token>> tokenRangeCollection)
{
  final Set<SSTableReader> sstables = new HashSet<>();
  Iterable<SSTableReader> liveTables = cfs.getTracker().getView().select(SSTableSet.LIVE);
  SSTableIntervalTree tree = SSTableIntervalTree.build(liveTables);
  for (Range<Token> tokenRange : tokenRangeCollection)
  {
    Iterable<SSTableReader> ssTableReaders = View.sstablesInBounds(tokenRange.left.minKeyBound(), tokenRange.right.maxKeyBound(), tree);
    Iterables.addAll(sstables, ssTableReaders);
  }
  return sstables;
}

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long getValue()
  {
    long memtablePartitions = 0;
    for (Memtable memtable : cfs.getTracker().getView().getAllMemtables())
      memtablePartitions += memtable.partitionCount();
    return SSTableReader.getApproximateKeyCount(cfs.getSSTables(SSTableSet.CANONICAL)) + memtablePartitions;
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public void adjustMemtableSize(long additionalSpace, OpOrder.Group opGroup)
  {
    baseCfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().allocate(additionalSpace, opGroup);
  }
};

  public void adjustMemtableSize(long additionalSpace, OpOrder.Group opGroup)
  {
    baseCfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().allocate(additionalSpace, opGroup);
  }
};

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});