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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
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* Unless required by applicable law or agreed to in writing,
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package org.apache.cassandra.db;
import java.util.*;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.config.KSMetaData;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.locator.SimpleStrategy;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.db.composites.*;
import org.apache.cassandra.db.filter.ColumnSlice;
import org.apache.cassandra.db.marshal.Int32Type;
import org.apache.cassandra.utils.SearchIterator;
public class ArrayBackedSortedColumnsTest
{
private static final String KEYSPACE1 = "ArrayBackedSortedColumnsTest";
private static final String CF_STANDARD1 = "Standard1";
@BeforeClass
public static void defineSchema() throws ConfigurationException
{
SchemaLoader.prepareServer();
SchemaLoader.createKeyspace(KEYSPACE1,
SimpleStrategy.class,
KSMetaData.optsWithRF(1),
SchemaLoader.standardCFMD(KEYSPACE1, CF_STANDARD1));
}
@Test
public void testAdd()
{
testAddInternal(false);
testAddInternal(true);
}
private CFMetaData metadata()
{
return Schema.instance.getCFMetaData(KEYSPACE1, CF_STANDARD1);
}
private void testAddInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ 1, 2, 2, 3 };
for (int i = 0; i < values.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
Iterator<Cell> iter = map.iterator();
assertEquals("1st column", 1, iter.next().name().toByteBuffer().getInt(0));
assertEquals("2nd column", 2, iter.next().name().toByteBuffer().getInt(0));
assertEquals("3rd column", 3, iter.next().name().toByteBuffer().getInt(0));
}
@Test
public void testOutOfOrder()
{
testAddOutOfOrder(false);
testAddOutOfOrder(false);
}
private void testAddOutOfOrder(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily cells = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ 1, 2, 1, 3, 4, 4, 5, 5, 1, 2, 6, 6, 6, 1, 2, 3 };
for (int i = 0; i < values.length; ++i)
cells.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
assertEquals(6, cells.getColumnCount());
Iterator<Cell> iter = cells.iterator();
assertEquals(1, iter.next().name().toByteBuffer().getInt(0));
assertEquals(2, iter.next().name().toByteBuffer().getInt(0));
assertEquals(3, iter.next().name().toByteBuffer().getInt(0));
assertEquals(4, iter.next().name().toByteBuffer().getInt(0));
assertEquals(5, iter.next().name().toByteBuffer().getInt(0));
assertEquals(6, iter.next().name().toByteBuffer().getInt(0));
// Add more values
values = new int[]{ 11, 15, 12, 12, 12, 16, 10, 8, 8, 7, 4, 4, 5 };
for (int i = 0; i < values.length; ++i)
cells.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
assertEquals(13, cells.getColumnCount());
iter = cells.reverseIterator();
assertEquals(16, iter.next().name().toByteBuffer().getInt(0));
assertEquals(15, iter.next().name().toByteBuffer().getInt(0));
assertEquals(12, iter.next().name().toByteBuffer().getInt(0));
assertEquals(11, iter.next().name().toByteBuffer().getInt(0));
assertEquals(10, iter.next().name().toByteBuffer().getInt(0));
assertEquals(8, iter.next().name().toByteBuffer().getInt(0));
assertEquals(7, iter.next().name().toByteBuffer().getInt(0));
assertEquals(6, iter.next().name().toByteBuffer().getInt(0));
assertEquals(5, iter.next().name().toByteBuffer().getInt(0));
assertEquals(4, iter.next().name().toByteBuffer().getInt(0));
assertEquals(3, iter.next().name().toByteBuffer().getInt(0));
assertEquals(2, iter.next().name().toByteBuffer().getInt(0));
assertEquals(1, iter.next().name().toByteBuffer().getInt(0));
}
@Test
public void testGetColumn()
{
testGetColumnInternal(true);
testGetColumnInternal(false);
}
private void testGetColumnInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily cells = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ -1, 20, 44, 55, 27, 27, 17, 1, 9, 89, 33, 44, 0, 9 };
for (int i = 0; i < values.length; ++i)
cells.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
for (int i : values)
assertEquals(i, cells.getColumn(type.makeCellName(i)).name().toByteBuffer().getInt(0));
}
@Test
public void testAddAll()
{
testAddAllInternal(false);
testAddAllInternal(true);
}
private void testAddAllInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
ColumnFamily map2 = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values1 = new int[]{ 1, 3, 5, 6 };
int[] values2 = new int[]{ 2, 4, 5, 6 };
for (int i = 0; i < values1.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values1[reversed ? values1.length - 1 - i : i])));
for (int i = 0; i < values2.length; ++i)
map2.addColumn(new BufferCell(type.makeCellName(values2[reversed ? values2.length - 1 - i : i])));
map2.addAll(map);
Iterator<Cell> iter = map2.iterator();
assertEquals("1st column", 1, iter.next().name().toByteBuffer().getInt(0));
assertEquals("2nd column", 2, iter.next().name().toByteBuffer().getInt(0));
assertEquals("3rd column", 3, iter.next().name().toByteBuffer().getInt(0));
assertEquals("4st column", 4, iter.next().name().toByteBuffer().getInt(0));
assertEquals("5st column", 5, iter.next().name().toByteBuffer().getInt(0));
assertEquals("6st column", 6, iter.next().name().toByteBuffer().getInt(0));
}
@Test
public void testGetCollection()
{
testGetCollectionInternal(false);
testGetCollectionInternal(true);
}
private void testGetCollectionInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ 1, 2, 3, 5, 9 };
List<Cell> sorted = new ArrayList<>();
for (int v : values)
sorted.add(new BufferCell(type.makeCellName(v)));
List<Cell> reverseSorted = new ArrayList<>(sorted);
Collections.reverse(reverseSorted);
for (int i = 0; i < values.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
assertSame(sorted, map.getSortedColumns());
assertSame(reverseSorted, map.getReverseSortedColumns());
}
@Test
public void testIterator()
{
testIteratorInternal(false);
//testIteratorInternal(true);
}
private void testIteratorInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ 1, 2, 3, 5, 9 };
for (int i = 0; i < values.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
assertSame(new int[]{ 3, 2, 1 }, map.reverseIterator(new ColumnSlice[]{ new ColumnSlice(type.make(3), Composites.EMPTY) }));
assertSame(new int[]{ 3, 2, 1 }, map.reverseIterator(new ColumnSlice[]{ new ColumnSlice(type.make(4), Composites.EMPTY) }));
assertSame(map.iterator(), map.iterator(ColumnSlice.ALL_COLUMNS_ARRAY));
}
@Test
public void testSearchIterator()
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), false);
int[] values = new int[]{ 1, 2, 3, 5, 9, 15, 21, 22 };
for (int i = 0; i < values.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values[i])));
SearchIterator<CellName, Cell> iter = map.searchIterator();
for (int i = 0 ; i < values.length ; i++)
assertSame(values[i], iter.next(type.makeCellName(values[i])));
iter = map.searchIterator();
for (int i = 0 ; i < values.length ; i+=2)
assertSame(values[i], iter.next(type.makeCellName(values[i])));
iter = map.searchIterator();
for (int i = 0 ; i < values.length ; i+=4)
assertSame(values[i], iter.next(type.makeCellName(values[i])));
iter = map.searchIterator();
for (int i = 0 ; i < values.length ; i+=1)
{
if (i % 2 == 0)
{
Cell cell = iter.next(type.makeCellName(values[i] - 1));
if (i > 0 && values[i - 1] == values[i] - 1)
assertSame(values[i - 1], cell);
else
assertNull(cell);
}
}
}
private <T> void assertSame(Iterable<T> c1, Iterable<T> c2)
{
assertSame(c1.iterator(), c2.iterator());
}
private <T> void assertSame(Iterator<T> iter1, Iterator<T> iter2)
{
while (iter1.hasNext() && iter2.hasNext())
assertEquals(iter1.next(), iter2.next());
if (iter1.hasNext() || iter2.hasNext())
fail("The collection don't have the same size");
}
private void assertSame(int name, Cell cell)
{
int value = ByteBufferUtil.toInt(cell.name().toByteBuffer());
assert name == value : "Expected " + name + " but got " + value;
}
private void assertSame(int[] names, Iterator<Cell> iter)
{
for (int name : names)
{
assert iter.hasNext() : "Expected " + name + " but no more result";
int value = ByteBufferUtil.toInt(iter.next().name().toByteBuffer());
assert name == value : "Expected " + name + " but got " + value;
}
}
@Test
public void testRemove()
{
testRemoveInternal(false);
testRemoveInternal(true);
}
private void testRemoveInternal(boolean reversed)
{
CellNameType type = new SimpleDenseCellNameType(Int32Type.instance);
ColumnFamily map = ArrayBackedSortedColumns.factory.create(metadata(), reversed);
int[] values = new int[]{ 1, 2, 2, 3 };
for (int i = 0; i < values.length; ++i)
map.addColumn(new BufferCell(type.makeCellName(values[reversed ? values.length - 1 - i : i])));
Iterator<Cell> iter = map.getReverseSortedColumns().iterator();
assertTrue(iter.hasNext());
iter.next();
iter.remove();
assertTrue(iter.hasNext());
iter.next();
iter.remove();
assertTrue(iter.hasNext());
iter.next();
iter.remove();
assertTrue(!iter.hasNext());
}
}