| /* |
| * 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.apache.pig.builtin.mock.Storage.resetData; |
| import static org.apache.pig.builtin.mock.Storage.tuple; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.Random; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.pig.PigServer; |
| import org.apache.pig.builtin.mock.Storage.Data; |
| import org.apache.pig.data.DataType; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.impl.logicalLayer.schema.Schema; |
| import org.apache.pig.test.utils.GenRandomData; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestOrderBy3 { |
| private final Log log = LogFactory.getLog(getClass()); |
| |
| private static PigServer pigServer; |
| private Data data; |
| |
| private static final int MAX = 10; |
| |
| @Before |
| public void setUp() throws Exception { |
| ArrayList<Tuple> tuples = new ArrayList<Tuple>(); |
| |
| log.info("Setting up"); |
| |
| pigServer = new PigServer(Util.getLocalTestMode()); |
| data = resetData(pigServer); |
| |
| Random r = new Random(); |
| for (int i = 0; i < MAX; i++) { |
| tuples.add(tuple(i,GenRandomData.genRandString(r))); |
| } |
| |
| Schema s = new Schema(); |
| s.add(new Schema.FieldSchema("index", DataType.INTEGER)); |
| s.add(new Schema.FieldSchema("name", DataType.CHARARRAY)); |
| data.set("test", s, tuples); |
| } |
| |
| public void testNames(boolean ascOrdering) throws Exception { |
| String order = (ascOrdering) ? "ASC" : "DESC"; |
| |
| String query = "A = load 'test' USING mock.Storage();" + |
| "B = order A by name " + order + ";" + |
| "store B into 'result' using mock.Storage();"; |
| |
| Util.registerMultiLineQuery(pigServer, query); |
| |
| Iterator<Tuple> it = data.get("result").iterator(); |
| |
| Tuple t1 = (Tuple) it.next(); |
| Tuple t2 = (Tuple) it.next(); |
| |
| int comparision; |
| boolean resultComparision; |
| String value1, value2; |
| |
| while (t2 != null) { |
| |
| value1 = (String) t1.get(1); |
| value2 = (String) t2.get(1); |
| |
| comparision = DataType.compare(value1, value2); |
| resultComparision = (ascOrdering) ? (comparision <= 0) |
| : (comparision >= 0); |
| |
| System.out.println("RESULT: " + value1 + "," + value2 + " = " |
| + comparision); |
| assertTrue(resultComparision); |
| |
| if(!it.hasNext()) break; |
| |
| t1 = t2; |
| t2 = (Tuple) it.next(); |
| } |
| } |
| |
| public void testIndexes(boolean ascOrdering) throws Exception { |
| |
| String order = (ascOrdering) ? "ASC" : "DESC"; |
| |
| String query = "A = load 'test' USING mock.Storage();" + |
| "B = order A by index " + order + ";" + |
| "store B into 'result' using mock.Storage();"; |
| |
| Util.registerMultiLineQuery(pigServer, query); |
| |
| Iterator<Tuple> it = data.get("result").iterator(); |
| |
| int toCompare, value; |
| |
| for (int i = 0; i < MAX; i++) { |
| |
| Tuple t = (Tuple) it.next(); |
| value = DataType.toInteger(t.get(0)); |
| toCompare = (ascOrdering) ? i : MAX - i - 1; |
| |
| System.out.println("RESULT: " + toCompare + "," + value); |
| |
| assertEquals(toCompare, value); |
| } |
| |
| assertFalse(it.hasNext()); |
| } |
| |
| @Test |
| public void testIndexesAsc() throws Exception { |
| testIndexes(true); |
| } |
| |
| @Test |
| public void testIndexesDesc() throws Exception { |
| testIndexes(false); |
| } |
| |
| @Test |
| public void testValuesASC() throws Exception { |
| testNames(true); |
| } |
| |
| @Test |
| public void testValuesDESC() throws Exception { |
| testNames(false); |
| } |
| } |