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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.translator.accumulo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.Arrays;
import java.util.List;
import org.apache.accumulo.core.data.PartialKey;
import org.apache.accumulo.core.data.Range;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.teiid.cdk.api.TranslationUtility;
import org.teiid.core.util.ObjectConverterUtil;
import org.teiid.core.util.UnitTestUtil;
import org.teiid.language.Command;
import org.teiid.metadata.Column;
import org.teiid.query.metadata.TransformationMetadata;
import org.teiid.query.unittest.RealMetadataFactory;
import org.teiid.translator.TranslatorException;
@SuppressWarnings("nls")
public class TestAccumuloQueryVisitor {
private AccumuloExecutionFactory translator;
private TranslationUtility utility;
@Before
public void setUp() throws Exception {
this.translator = new AccumuloExecutionFactory();
this.translator.start();
TransformationMetadata metadata = RealMetadataFactory.fromDDL(
ObjectConverterUtil.convertFileToString(UnitTestUtil.getTestDataFile("sampledb.ddl")), "sakila", "rental");
this.utility = new TranslationUtility(metadata);
}
@Test
public void testSelectStar() throws Exception {
Command cmd = this.utility.parseCommand("select * from Customer");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertTrue(visitor.getRanges().isEmpty());
assertNotNull(visitor.projectedColumns());
List<Column> columns = visitor.projectedColumns();
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(3, columns.size());
Column rowid = columns.get(0);
Column firstName = columns.get(1);
assertEquals("customer_id", rowid.getName());
assertEquals("rowid", rowid.getNameInSource());
assertEquals("firstName", firstName.getName());
assertEquals("customer", firstName.getProperty(AccumuloMetadataProcessor.CF, false));
assertEquals("firstNameAttribute", firstName.getProperty(AccumuloMetadataProcessor.CQ, false));
}
@Test
public void testSelectColumn() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertTrue(visitor.getRanges().isEmpty());
assertNotNull(visitor.projectedColumns());
List<Column> columns = visitor.projectedColumns();
assertEquals(1, columns.size());
Column name = columns.get(0);
assertEquals("firstName", name.getName());
assertEquals("customer", name.getProperty(AccumuloMetadataProcessor.CF, false));
assertEquals("firstNameAttribute", name.getProperty(AccumuloMetadataProcessor.CQ, false));
}
private AccumuloQueryVisitor buildVisitor(Command cmd) throws TranslatorException {
AccumuloQueryVisitor visitor = new AccumuloQueryVisitor(this.translator);
visitor.visitNode(cmd);
if (!visitor.exceptions.isEmpty()) {
throw visitor.exceptions.get(0);
}
return visitor;
}
@Test
public void testSelectEquality() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id = 1");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(1, visitor.getRanges().size());
Range range = visitor.getRanges().get(0);
assertEquals(AccumuloQueryVisitor.singleRowRange(AccumuloQueryVisitor.buildKey(new Integer(1))), range);
}
@Test
public void testWhereIN() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id IN (1,2)");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(2, visitor.getRanges().size());
assertEquals(AccumuloQueryVisitor.singleRowRange(AccumuloQueryVisitor
.buildKey(new Integer(2))), visitor.getRanges().get(0));
assertEquals(AccumuloQueryVisitor.singleRowRange(AccumuloQueryVisitor
.buildKey(new Integer(1))), visitor.getRanges().get(1));
}
@Test
public void testWhereNOT_IN() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id NOT IN (1,2)");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(3, visitor.getRanges().size());
assertEquals(new Range(AccumuloQueryVisitor.buildKey(new Integer(2)),
false, null, true), visitor.getRanges().get(0));
assertEquals(new Range(AccumuloQueryVisitor.buildKey(new Integer(1)),
false, AccumuloQueryVisitor.buildKey(new Integer(2)), false),
visitor.getRanges().get(1));
assertEquals(new Range(null, true,AccumuloQueryVisitor.buildKey(new Integer(1)), false),
visitor.getRanges().get(2));
}
@Test
@Ignore
public void testWhereComapreLE() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id < 2");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(1, visitor.getRanges().size());
assertEquals(new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(2)), false), visitor.getRanges().get(0));
}
@Test
@Ignore
public void testWhereComapreLEEQ() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id <= 2");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(2, visitor.getRanges().size());
Range r1 = new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(2)), false);
Range r2 = AccumuloQueryVisitor.singleRowRange(AccumuloQueryVisitor.buildKey(new Integer(2)));
assertEquals(r1, visitor.getRanges().get(0));
assertEquals(r2, visitor.getRanges().get(1));
}
@Test
@Ignore
public void testWhereComapreGT() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id > 2");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(1, visitor.getRanges().size());
assertEquals(new Range(AccumuloQueryVisitor.buildKey(new Integer(2)).followingKey(PartialKey.ROW),
null, false, true, false, true),visitor.getRanges().get(0));
}
@Test
@Ignore
public void testWhereComapreGTEQ() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id >= 2");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(1, visitor.getRanges().size());
assertEquals(new Range(AccumuloQueryVisitor.buildKey(new Integer(2)), true, null, true), visitor.getRanges().get(0));
}
@Test
public void testWhereComapreNOTEQ() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id <> 2");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(2, visitor.getRanges().size());
assertEquals(new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(2)), false),
visitor.getRanges().get(0));
assertEquals(new Range(AccumuloQueryVisitor.buildKey(new Integer(2)).followingKey(PartialKey.ROW),
null, false, true, false, true), visitor.getRanges().get(1));
}
@Test
@Ignore
public void testWhereComapreAND1() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id < 2 and customer_id > 4");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(2, visitor.getRanges().size());
Range r1 = new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(2)), false);
Range r2 = new Range(AccumuloQueryVisitor.buildKey(new Integer(4)).followingKey(PartialKey.ROW),
null, false, true, false, true);
assertEquals(Range.mergeOverlapping(Arrays.asList(r1, r2)), visitor.getRanges());
}
@Test
public void testWhereComapreAND2() throws Exception {
Command cmd = this.utility.parseCommand("select firstname from Customer where customer_id < 2 and customer_id != 4");
AccumuloQueryVisitor visitor = buildVisitor(cmd);
assertEquals("customer", visitor.getScanTable().getName());
assertEquals(2, visitor.getRanges().size());
Range r1 = new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(2)), false);
Range r2 = new Range(null, true, AccumuloQueryVisitor.buildKey(new Integer(4)), false);
Range r3 = new Range(AccumuloQueryVisitor.buildKey(new Integer(4)).followingKey(PartialKey.ROW),
null, false, true, false, true);
assertEquals(Range.mergeOverlapping(Arrays.asList(r1, r2, r3)), visitor.getRanges());
}
}