| /* |
| * 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.drill.exec.physical.impl.xsort; |
| |
| import static org.apache.drill.test.rowSet.RowSetUtilities.intArray; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.drill.common.types.TypeProtos.DataMode; |
| import org.apache.drill.common.types.TypeProtos.MinorType; |
| import org.apache.drill.exec.record.RecordBatchSizer; |
| import org.apache.drill.exec.record.RecordBatchSizer.ColumnSize; |
| import org.apache.drill.exec.record.VectorInitializer; |
| import org.apache.drill.exec.record.VectorInitializer.AllocationHint; |
| import org.apache.drill.exec.record.metadata.SchemaBuilder; |
| import org.apache.drill.exec.record.metadata.TupleMetadata; |
| import org.apache.drill.exec.vector.IntVector; |
| import org.apache.drill.exec.vector.RepeatedIntVector; |
| import org.apache.drill.exec.vector.ValueVector; |
| import org.apache.drill.test.SubOperatorTest; |
| import org.apache.drill.exec.physical.rowSet.RowSet; |
| import org.apache.drill.exec.physical.rowSet.RowSet.SingleRowSet; |
| import org.apache.drill.exec.physical.rowSet.RowSetBuilder; |
| import org.junit.Test; |
| |
| /** |
| * DRILL-5804. |
| * Code had a bug that if an array had low cardinality, the average, |
| * expressed as an int, was zero. We then allocated a zero length |
| * buffer, tried to double it, got another zero length buffer, and |
| * looped forever. This test verifies the fixes to avoid that case. |
| * @throws Exception |
| */ |
| |
| |
| public class TestShortArrays extends SubOperatorTest { |
| |
| @Test |
| public void testSizer() { |
| |
| // Create a row set with less than one item, on |
| // average, per array. |
| |
| TupleMetadata schema = new SchemaBuilder() |
| .add("a", MinorType.INT) |
| .addArray("b", MinorType.INT) |
| .buildSchema(); |
| RowSetBuilder builder = fixture.rowSetBuilder(schema) |
| .addRow(1, intArray(10)); |
| for (int i = 2; i <= 10; i++) { |
| builder.addRow(i, intArray()); |
| } |
| RowSet rows = builder.build(); |
| |
| // Run the record batch sizer on the resulting batch. |
| |
| RecordBatchSizer sizer = new RecordBatchSizer(rows.container()); |
| assertEquals(2, sizer.columns().size()); |
| ColumnSize bCol = sizer.columns().get("b"); |
| assertEquals(0.1, bCol.getCardinality(), 0.01); |
| assertEquals(1, bCol.getElementCount()); |
| |
| // Create a vector initializer using the sizer info. |
| |
| VectorInitializer vi = sizer.buildVectorInitializer(); |
| AllocationHint bHint = vi.hint("b"); |
| assertNotNull(bHint); |
| assertEquals(bHint.elementCount, bCol.getCardinality(), 0.001); |
| |
| // Create a new batch, and new vector, using the sizer and |
| // initializer inferred from the previous batch. |
| |
| SingleRowSet empty = fixture.rowSet(schema); |
| vi.allocateBatch(empty.container(), 100); |
| assertEquals(2, empty.container().getNumberOfColumns()); |
| ValueVector bVector = empty.container().getValueVector(1).getValueVector(); |
| assertTrue(bVector instanceof RepeatedIntVector); |
| assertEquals(16, ((RepeatedIntVector) bVector).getDataVector().getValueCapacity()); |
| |
| rows.clear(); |
| empty.clear(); |
| } |
| |
| /** |
| * Test that a zero-length vector, on reAlloc, will default |
| * to 256 bytes. (Previously the code just doubled zero |
| * forever.) |
| */ |
| |
| @Test |
| public void testReAllocZeroSize() { |
| try (IntVector vector = new IntVector( |
| SchemaBuilder.columnSchema("a", MinorType.INT, DataMode.REQUIRED), |
| fixture.allocator())) { |
| vector.allocateNew(0); |
| vector.reAlloc(); |
| assertEquals(256 / 4, vector.getValueCapacity()); |
| } |
| } |
| } |