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* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
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* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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*/
package org.teiid.common.buffer;
import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.junit.Test;
import org.teiid.common.buffer.STree.InsertMode;
import org.teiid.common.buffer.impl.BufferFrontedFileStoreCache;
import org.teiid.common.buffer.impl.BufferManagerImpl;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidProcessingException;
import org.teiid.query.processor.CollectionTupleSource;
import org.teiid.query.sql.symbol.ElementSymbol;
@SuppressWarnings({"nls", "unchecked"})
public class TestSTree {
@Test public void testRemoveAll() throws TeiidComponentException {
BufferManager bm = BufferManagerFactory.getStandaloneBufferManager();
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(Integer.class);
ElementSymbol e2 = new ElementSymbol("y");
e2.setType(String.class);
List<ElementSymbol> elements = Arrays.asList(e1, e2);
STree map = bm.createSTree(elements, "1", 1);
for (int i = 20000; i > 0; i--) {
assertNull(map.insert(Arrays.asList(i, String.valueOf(i)), InsertMode.NEW, -1));
assertEquals(20000 - i + 1, map.getRowCount());
}
for (int i = 20000; i > 0; i--) {
assertNotNull(String.valueOf(i), map.remove(Arrays.asList(i)));
}
assertEquals(0, map.getRowCount());
assertNull(map.insert(Arrays.asList(1, String.valueOf(1)), InsertMode.NEW, -1));
}
@Test public void testUnOrderedInsert() throws TeiidComponentException {
BufferManagerImpl bm = BufferManagerFactory.createBufferManager();
bm.setProcessorBatchSize(16);
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(Integer.class);
List elements = Arrays.asList(e1);
STree map = bm.createSTree(elements, "1", 1);
int size = (1<<16)+(1<<4)+1;
int logSize = map.getExpectedHeight(size);
for (int i = 0; i < size; i++) {
assertNull(map.insert(Arrays.asList(i), InsertMode.NEW, logSize));
assertEquals(i + 1, map.getRowCount());
}
assertTrue(5 >= map.getHeight());
}
@Test public void testOrderedInsert() throws TeiidComponentException {
BufferManagerImpl bm = BufferManagerFactory.createBufferManager();
bm.setProcessorBatchSize(4);
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(Integer.class);
List<ElementSymbol> elements = Arrays.asList(e1);
STree map = bm.createSTree(elements, "1", 1);
int size = (1<<16)+(1<<4)+1;
for (int i = 0; i < size; i++) {
assertNull(map.insert(Arrays.asList(i), InsertMode.ORDERED, size));
assertEquals(i + 1, map.getRowCount());
}
assertEquals(4, map.getHeight());
for (int i = 0; i < size; i++) {
assertNotNull(map.remove(Arrays.asList(i)));
}
}
@Test public void testStorageWrites() throws TeiidComponentException {
BufferManagerImpl bm = BufferManagerFactory.createBufferManager();
bm.setProcessorBatchSize(32);
bm.setMaxReserveKB(0);//force all to disk
BufferFrontedFileStoreCache fsc =(BufferFrontedFileStoreCache)bm.getCache();
fsc.setMaxStorageObjectSize(1 << 19);
fsc.setMemoryBufferSpace(1 << 19);
fsc.initialize();
bm.initialize();
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(String.class);
List<ElementSymbol> elements = Arrays.asList(e1);
STree map = bm.createSTree(elements, "1", 1);
int size = 1000;
for (int i = 0; i < size; i++) {
assertNull(map.insert(Arrays.asList(new String(new byte[1000])), InsertMode.ORDERED, size));
assertEquals(i + 1, map.getRowCount());
}
for (int i = 0; i < size; i++) {
assertNotNull(map.remove(Arrays.asList(new String(new byte[1000]))));
}
assertEquals(0, map.getRowCount());
assertEquals(0, bm.getActiveBatchBytes());
map.remove();
assertEquals(0, bm.getActiveBatchBytes());
}
@Test public void testSearch() throws TeiidComponentException, TeiidProcessingException {
//due to buffering changes we need to hold this in memory directly rather than serialize it out as that will lead to GC overhead errors
BufferManagerImpl bm = BufferManagerFactory.getTestBufferManager(Integer.MAX_VALUE, 1);
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(Integer.class);
ElementSymbol e2 = new ElementSymbol("x");
e2.setType(Integer.class);
List elements = Arrays.asList(e1, e2);
STree map = bm.createSTree(elements, "1", 2);
int size = 1<<16;
for (int i = 0; i < size; i++) {
assertNull(map.insert(Arrays.asList(i, i), InsertMode.NEW, -1));
assertEquals(i + 1, map.getRowCount());
}
map.compact();
for (int i = 0; i < size; i++) {
TupleBrowser tb = new TupleBrowser(map, new CollectionTupleSource(Collections.singletonList(Arrays.asList(i)).iterator()), true);
assertNotNull(tb.nextTuple());
assertNull(tb.nextTuple());
}
}
@Test public void testSearchWithRepeated() throws TeiidComponentException, TeiidProcessingException {
//due to buffering changes we need to hold this in memory directly rather than serialize it out as that will lead to GC overhead errors
BufferManagerImpl bm = BufferManagerFactory.getTestBufferManager(Integer.MAX_VALUE, 1);
ElementSymbol e1 = new ElementSymbol("x");
e1.setType(Integer.class);
ElementSymbol e2 = new ElementSymbol("x");
e2.setType(Integer.class);
List<ElementSymbol> elements = Arrays.asList(e1, e2);
STree map = bm.createSTree(elements, "1", 2);
int size = 1<<16;
for (int i = 0; i < size; i++) {
assertNull(map.insert(Arrays.asList(i, i*2), InsertMode.NEW, -1));
assertNull(map.insert(Arrays.asList(i, i*2+1), InsertMode.NEW, -1));
assertEquals((i + 1) * 2, map.getRowCount());
}
map.compact();
for (int i = 0; i < size; i++) {
TupleBrowser tb = new TupleBrowser(map, new CollectionTupleSource(Collections.singletonList(Arrays.asList(i)).iterator()), true);
for (int j = 0; j < 2; j++) {
assertNotNull(tb.nextTuple());
}
assertNull(tb.nextTuple());
}
}
}