| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pig.test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNull; |
| |
| import java.io.File; |
| import java.util.Iterator; |
| import java.util.Properties; |
| import java.util.Random; |
| |
| import org.apache.pig.PigServer; |
| import org.apache.pig.backend.executionengine.ExecException; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.PONegative; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POProject; |
| import org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans.PhysicalPlan; |
| import org.apache.pig.data.BagFactory; |
| import org.apache.pig.data.DataBag; |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.plan.OperatorKey; |
| import org.apache.pig.impl.plan.PlanException; |
| import org.junit.Test; |
| public class TestPONegative { |
| DataBag bag = BagFactory.getInstance().newDefaultBag(); |
| Random r = new Random(100L); |
| TupleFactory tf = TupleFactory.getInstance(); |
| final int MAX = 10; |
| |
| @Test |
| public void testPONegInt () throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextInt()); |
| bag.add(t); |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.INTEGER); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.INTEGER); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| Integer expected = -(Integer)t.get(0); |
| Integer output = (Integer) pn.getNextInteger().result; |
| assertEquals(expected, output); |
| } |
| } |
| |
| @Test |
| public void testPONegIntAndNull () throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextInt()); |
| bag.add(t); |
| if( r.nextInt(3) % 3 == 0 ){ |
| t = tf.newTuple(); |
| t.append(null); |
| bag.add(t); |
| } |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.INTEGER); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.INTEGER); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| |
| if(t.get(0) == null) { |
| Integer output = (Integer)pn.getNextInteger().result; |
| assertNull(output); |
| } else { |
| Integer expected = -(Integer)t.get(0); |
| Integer output = (Integer) pn.getNextInteger().result; |
| assertEquals(expected, output); |
| } |
| } |
| } |
| |
| @Test |
| public void testPONegLong () throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextLong()); |
| bag.add(t); |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.LONG); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.LONG); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| Long expected = -(Long)t.get(0); |
| long output = (Long) pn.getNextLong().result; |
| assertEquals(expected.longValue(), output); |
| } |
| } |
| |
| @Test |
| public void testPONegLongAndNull () throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextLong()); |
| bag.add(t); |
| if( r.nextInt(3) % 3 == 0 ){ |
| t = tf.newTuple(); |
| t.append(null); |
| bag.add(t); |
| } |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.LONG); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.LONG); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for(Iterator<Tuple> it = bag.iterator(); it.hasNext(); ) { |
| Tuple t = it.next(); |
| plan.attachInput(t); |
| |
| if(t.get(0) == null) { |
| Long output = (Long)pn.getNextLong().result; |
| assertNull(output); |
| } else { |
| Long expected = -(Long)t.get(0); |
| long output = (Long) pn.getNextLong().result; |
| assertEquals(expected.longValue(), output); |
| } |
| } |
| } |
| |
| @Test |
| public void testPONegDouble() throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextDouble()); |
| bag.add(t); |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.DOUBLE); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.DOUBLE); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| Double expected = -(Double)t.get(0); |
| Double output = (Double) pn.getNextDouble().result; |
| assertEquals(expected, output); |
| } |
| } |
| |
| @Test |
| public void testPONegDoubleAndNull() throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextDouble()); |
| bag.add(t); |
| if( r.nextInt(3) % 3 == 0 ){ |
| t = tf.newTuple(); |
| t.append(null); |
| bag.add(t); |
| } |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.DOUBLE); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.DOUBLE); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| |
| if(t.get(0) == null) { |
| Double output = (Double )pn.getNextDouble().result; |
| assertNull(output); |
| } else { |
| Double expected = -(Double)t.get(0); |
| Double output = (Double) pn.getNextDouble().result; |
| assertEquals(expected, output); |
| } |
| } |
| } |
| |
| @Test |
| public void testPONegFloat() throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextFloat()); |
| bag.add(t); |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.FLOAT); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.FLOAT); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for (Tuple t : bag) { |
| plan.attachInput(t); |
| Float expected = -(Float)t.get(0); |
| Float output = (Float) pn.getNextFloat().result; |
| assertEquals(expected, output); |
| } |
| } |
| |
| @Test |
| public void testPONegFloatAndNull() throws PlanException, ExecException { |
| for(int i = 0; i < MAX; i++) { |
| Tuple t = tf.newTuple(); |
| t.append(r.nextFloat()); |
| bag.add(t); |
| if( r.nextInt(3) % 3 == 0 ){ |
| t = tf.newTuple(); |
| t.append(null); |
| bag.add(t); |
| } |
| } |
| |
| POProject prj = new POProject(new OperatorKey("", r.nextLong()), -1, 0); |
| prj.setResultType(DataType.FLOAT); |
| PONegative pn = new PONegative(new OperatorKey("", r.nextLong()), -1, prj); |
| pn.setResultType(DataType.FLOAT); |
| |
| PhysicalPlan plan = new PhysicalPlan(); |
| plan.add(prj); plan.add(pn); |
| plan.connect(prj, pn); |
| |
| for(Iterator<Tuple> it = bag.iterator(); it.hasNext(); ) { |
| Tuple t = it.next(); |
| plan.attachInput(t); |
| |
| if(t.get(0) == null) { |
| Float output = (Float)pn.getNextFloat().result; |
| assertNull(output); |
| } else { |
| Float expected = -(Float)t.get(0); |
| Float output = (Float) pn.getNextFloat().result; |
| assertEquals(expected, output); |
| } |
| } |
| } |
| |
| @Test |
| public void testPONegType() throws Exception { |
| PigServer pig = new PigServer(Util.getLocalTestMode(), new Properties()); |
| File f = Util.createInputFile("tmp", "", new String[] {"a", "b", "c"}); |
| pig.registerQuery("a = load '" |
| + Util.encodeEscape(Util.generateURI(f.toString(), pig.getPigContext())) + "';"); |
| // -1 is modeled as POnegative with Constant(1) |
| pig.registerQuery("b = foreach a generate SIZE(-1);"); |
| Iterator<Tuple> it = pig.openIterator("b"); |
| int i = 0; |
| while(it.hasNext()) { |
| assertEquals(1L, it.next().get(0)); |
| i++; |
| } |
| assertEquals(3, i); |
| } |
| } |