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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
* License as published by the Free Software Foundation; either
* 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.query.processor.relational;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.Test;
import org.teiid.api.exception.query.ExpressionEvaluationException;
import org.teiid.common.buffer.BlockedException;
import org.teiid.common.buffer.BufferManager;
import org.teiid.common.buffer.BufferManagerFactory;
import org.teiid.common.buffer.TupleBatch;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidProcessingException;
import org.teiid.core.types.DataTypeManager;
import org.teiid.query.eval.Evaluator;
import org.teiid.query.function.FunctionDescriptor;
import org.teiid.query.processor.BatchIterator;
import org.teiid.query.processor.FakeDataManager;
import org.teiid.query.processor.ProcessorDataManager;
import org.teiid.query.processor.QueryProcessor;
import org.teiid.query.sql.lang.CompareCriteria;
import org.teiid.query.sql.lang.Criteria;
import org.teiid.query.sql.symbol.Constant;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.sql.symbol.Expression;
import org.teiid.query.sql.symbol.Function;
import org.teiid.query.unittest.RealMetadataFactory;
import org.teiid.query.util.CommandContext;
@SuppressWarnings("unchecked")
public class TestSelectNode {
public void helpTestSelect(List elements, Criteria criteria, List[] data, List childElements, ProcessorDataManager dataMgr, List[] expected) throws TeiidComponentException, TeiidProcessingException {
helpTestSelect(elements, criteria, childElements, dataMgr, expected, new FakeRelationalNode(2, data));
}
public void helpTestSelect(List elements, Criteria criteria, List childElements, ProcessorDataManager dataMgr, List[] expected, RelationalNode child) throws TeiidComponentException, TeiidProcessingException {
SelectNode selectNode = new SelectNode(1);
helpTestSelect(elements, criteria, childElements, dataMgr, expected, child, selectNode);
}
private void helpTestSelect(List elements, Criteria criteria, List childElements,
ProcessorDataManager dataMgr, List[] expected,
RelationalNode child,
SelectNode selectNode) throws TeiidComponentException,
TeiidProcessingException {
BufferManager mgr = BufferManagerFactory.getStandaloneBufferManager();
CommandContext context = new CommandContext("pid", "test", null, null, 1); //$NON-NLS-1$ //$NON-NLS-2$
child.setElements(childElements);
child.initialize(context, mgr, dataMgr);
selectNode.setCriteria(criteria);
selectNode.setElements(elements);
selectNode.addChild(child);
selectNode.initialize(context, mgr, dataMgr);
selectNode.open();
BatchIterator iterator = new BatchIterator(selectNode);
for (int i = 0; i < expected.length; i++) {
while (true) {
try {
assertEquals("Rows don't match at " + i, expected[i], iterator.nextTuple()); //$NON-NLS-1$
break;
} catch (BlockedException e) {
continue;
}
}
}
assertFalse(iterator.hasNext());
}
/**
* Ensures that a final empty batch is reindexed so that the batch iterator works correctly
*/
@Test public void testEmptyBatchIndexing() throws TeiidComponentException, TeiidProcessingException {
ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
List elements = new ArrayList();
elements.add(es1);
CompareCriteria crit = new CompareCriteria(new Constant(0), CompareCriteria.EQ, new Constant(new Integer(1)));
List childElements = new ArrayList();
childElements.add(es1);
RelationalNode child = new RelationalNode(0) {
int i = 0;
@Override
public Object clone() {
return null;
}
@Override
protected TupleBatch nextBatchDirect() throws BlockedException,
TeiidComponentException, TeiidProcessingException {
if (i++ == 0) {
return new TupleBatch(1, new List[] {Arrays.asList(1), Arrays.asList(1)});
}
TupleBatch batch = new TupleBatch(3, new List[0] );
batch.setTerminationFlag(true);
return batch;
}
};
helpTestSelect(elements, crit, childElements, null, new List[0], child);
}
@Test public void testTimeslicing() throws TeiidComponentException, TeiidProcessingException {
ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
List elements = new ArrayList();
elements.add(es1);
CompareCriteria crit = new CompareCriteria(es1, CompareCriteria.EQ, new Constant(new Integer(1)));
List[] data = new List[] {
Arrays.asList(1),
Arrays.asList(1),
Arrays.asList(1)
};
List childElements = new ArrayList();
childElements.add(es1);
helpTestSelect(elements, crit, childElements, null, data, new FakeRelationalNode(2, data), new SelectNode(3) {
int i = 0;
@Override
protected Evaluator getEvaluator(Map elementMap) {
return new Evaluator(elementMap, getDataManager(), getContext()) {
@Override
public Boolean evaluateTVL(Criteria criteria, List<?> tuple)
throws ExpressionEvaluationException,
BlockedException, TeiidComponentException {
if (i++ == 1) {
throw new QueryProcessor.ExpiredTimeSliceException();
}
return super.evaluateTVL(criteria, tuple);
}
};
}
});
}
@Test public void testNoRows() throws TeiidComponentException, TeiidProcessingException {
ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
ElementSymbol es2 = new ElementSymbol("e2"); //$NON-NLS-1$
es2.setType(DataTypeManager.DefaultDataClasses.STRING);
List elements = new ArrayList();
elements.add(es1);
List[] data = new List[0];
CompareCriteria crit = new CompareCriteria(es1, CompareCriteria.EQ, new Constant(new Integer(1)));
List childElements = new ArrayList();
childElements.add(es1);
childElements.add(es2);
helpTestSelect(elements, crit, data, childElements, null, data);
}
@Test public void testSimpleSelect() throws TeiidComponentException, TeiidProcessingException {
ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
ElementSymbol es2 = new ElementSymbol("e2"); //$NON-NLS-1$
es2.setType(DataTypeManager.DefaultDataClasses.STRING);
List elements = new ArrayList();
elements.add(es1);
CompareCriteria crit = new CompareCriteria(es1, CompareCriteria.EQ, new Constant(new Integer(1)));
List[] data = new List[20];
for(int i=0; i<20; i++) {
data[i] = new ArrayList();
data[i].add(new Integer((i*51) % 11));
String str = "" + (i*3); //$NON-NLS-1$
str = str.substring(0,1);
data[i].add(str);
}
List childElements = new ArrayList();
childElements.add(es1);
childElements.add(es2);
List[] expected = new List[] {
Arrays.asList(new Object[] { new Integer(1) }),
Arrays.asList(new Object[] { new Integer(1) })
};
helpTestSelect(elements, crit, data, childElements, null, expected);
}
@Test public void testSelectWithLookup() throws TeiidComponentException, TeiidProcessingException {
ElementSymbol es1 = new ElementSymbol("e1"); //$NON-NLS-1$
es1.setType(DataTypeManager.DefaultDataClasses.INTEGER);
ElementSymbol es2 = new ElementSymbol("e2"); //$NON-NLS-1$
es2.setType(DataTypeManager.DefaultDataClasses.STRING);
List elements = new ArrayList();
elements.add(es1);
Function func = new Function("lookup", new Expression[] { new Constant("pm1.g1"), new Constant("e2"), new Constant("e1"), es1 }); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
FunctionDescriptor desc = RealMetadataFactory.SFM.getSystemFunctionLibrary().findFunction("lookup", new Class[] { String.class, String.class, String.class, Integer.class } ); //$NON-NLS-1$
func.setFunctionDescriptor(desc);
func.setType(DataTypeManager.DefaultDataClasses.INTEGER);
CompareCriteria crit = new CompareCriteria(func, CompareCriteria.EQ, new Constant(new Integer(1)));
List[] data = new List[20];
for(int i=0; i<20; i++) {
data[i] = new ArrayList();
data[i].add(new Integer((i*51) % 11));
String str = "" + (i*3); //$NON-NLS-1$
str = str.substring(0,1);
data[i].add(str);
}
List childElements = new ArrayList();
childElements.add(es1);
childElements.add(es2);
List[] expected = new List[] {
Arrays.asList(new Object[] { new Integer(0) }),
Arrays.asList(new Object[] { new Integer(0) })
};
FakeDataManager dataMgr = new FakeDataManager();
dataMgr.setThrowBlocked(true);
Map valueMap = new HashMap();
valueMap.put(new Integer(0), new Integer(1));
valueMap.put(new Integer(1), new Integer(2));
dataMgr.defineCodeTable("pm1.g1", "e1", "e2", valueMap); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
helpTestSelect(elements, crit, data, childElements, dataMgr, expected);
}
}