| /* |
| * 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.store.sequencefile; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataOutputStream; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Paths; |
| |
| import org.apache.drill.categories.RowSetTest; |
| import org.apache.drill.common.types.TypeProtos.MinorType; |
| import org.apache.drill.exec.physical.rowSet.RowSet; |
| import org.apache.drill.exec.physical.rowSet.RowSetBuilder; |
| import org.apache.drill.exec.record.metadata.SchemaBuilder; |
| import org.apache.drill.exec.record.metadata.TupleMetadata; |
| import org.apache.drill.exec.store.easy.sequencefile.SequenceFileBatchReader; |
| import org.apache.drill.test.ClusterFixture; |
| import org.apache.drill.test.ClusterTest; |
| import org.apache.drill.test.QueryBuilder; |
| import org.apache.drill.test.rowSet.RowSetComparison; |
| import org.apache.hadoop.io.BytesWritable; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category(RowSetTest.class) |
| public class TestSequenceFileReader extends ClusterTest { |
| |
| @BeforeClass |
| public static void setup() throws Exception { |
| ClusterTest.startCluster(ClusterFixture.builder(dirTestWatcher)); |
| dirTestWatcher.copyResourceToRoot(Paths.get("sequencefiles/")); |
| } |
| |
| @Test |
| public void testStarQuery() throws Exception { |
| String sql = "select * from cp.`sequencefiles/simple.seq`"; |
| QueryBuilder builder = client.queryBuilder().sql(sql); |
| RowSet sets = builder.rowSet(); |
| |
| TupleMetadata schema = new SchemaBuilder() |
| .addNullable(SequenceFileBatchReader.KEY_SCHEMA, MinorType.VARBINARY) |
| .addNullable(SequenceFileBatchReader.VALUE_SCHEMA, MinorType.VARBINARY) |
| .buildSchema(); |
| |
| RowSet expected = new RowSetBuilder(client.allocator(), schema) |
| .addRow("key1".getBytes(StandardCharsets.UTF_8), "value1".getBytes(StandardCharsets.UTF_8)) |
| .addRow("key2".getBytes(StandardCharsets.UTF_8), "value2".getBytes(StandardCharsets.UTF_8)) |
| .build(); |
| |
| assertEquals(2, sets.rowCount()); |
| |
| new RowSetComparison(expected).verifyAndClearAll(sets); |
| } |
| |
| @Test |
| public void testExplicitQuery() throws Exception { |
| String sql = "select convert_from(binary_key, 'UTF8') as binary_key from cp.`sequencefiles/simple.seq`"; |
| QueryBuilder builder = client.queryBuilder().sql(sql); |
| RowSet sets = builder.rowSet(); |
| |
| TupleMetadata schema = new SchemaBuilder() |
| .addNullable(SequenceFileBatchReader.KEY_SCHEMA, MinorType.VARCHAR) |
| .build(); |
| |
| RowSet expected = new RowSetBuilder(client.allocator(), schema) |
| .addRow(byteWritableString("key0")) |
| .addRow(byteWritableString("key1")) |
| .build(); |
| |
| assertEquals(2, sets.rowCount()); |
| |
| new RowSetComparison(expected).verifyAndClearAll(sets); |
| } |
| |
| @Test |
| public void testLimitPushdown() throws Exception { |
| String sql = "select * from cp.`sequencefiles/simple.seq` limit 1 offset 1"; |
| QueryBuilder builder = client.queryBuilder().sql(sql); |
| RowSet sets = builder.rowSet(); |
| |
| assertEquals(1, sets.rowCount()); |
| sets.clear(); |
| } |
| |
| @Test |
| public void testSerDe() throws Exception { |
| String sql = "select count(*) from cp.`sequencefiles/simple.seq`"; |
| String plan = queryBuilder().sql(sql).explainJson(); |
| long cnt = queryBuilder().physical(plan).singletonLong(); |
| |
| assertEquals("Counts should match", 2, cnt); |
| } |
| |
| private static String byteWritableString(String input) throws Exception { |
| final ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| DataOutputStream out = new DataOutputStream(bout); |
| final BytesWritable writable = new BytesWritable(input.getBytes(StandardCharsets.UTF_8)); |
| writable.write(out); |
| return new String(bout.toByteArray()); |
| } |
| } |