| /* |
| * 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.beam.sdk.extensions.sql; |
| |
| import static org.apache.beam.sdk.extensions.sql.TestUtils.tuple; |
| |
| import java.io.Serializable; |
| import java.util.Objects; |
| import org.apache.beam.sdk.schemas.DefaultSchema; |
| import org.apache.beam.sdk.schemas.JavaBeanSchema; |
| import org.apache.beam.sdk.schemas.Schema; |
| import org.apache.beam.sdk.testing.PAssert; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.values.PBegin; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.Row; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| /** Tests for automatic inferring schema from the input {@link PCollection} of JavaBeans. */ |
| public class InferredJavaBeanSqlTest { |
| |
| @Rule public final TestPipeline pipeline = TestPipeline.create(); |
| |
| /** Person Bean. */ |
| @DefaultSchema(JavaBeanSchema.class) |
| public static class PersonBean implements Serializable { |
| private Integer ageYears; |
| private String name; |
| |
| public PersonBean() {} |
| |
| public Integer getAgeYears() { |
| return ageYears; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| PersonBean(String name, Integer ageYears) { |
| this.ageYears = ageYears; |
| this.name = name; |
| } |
| |
| public void setAgeYears(Integer ageYears) { |
| this.ageYears = ageYears; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| PersonBean that = (PersonBean) o; |
| return Objects.equals(ageYears, that.ageYears) && Objects.equals(name, that.name); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(ageYears, name); |
| } |
| } |
| |
| /** Order JavaBean. */ |
| @DefaultSchema(JavaBeanSchema.class) |
| public static class OrderBean implements Serializable { |
| private Integer amount; |
| private String buyerName; |
| |
| public OrderBean() {} |
| |
| public Integer getAmount() { |
| return amount; |
| } |
| |
| public String getBuyerName() { |
| return buyerName; |
| } |
| |
| OrderBean(String buyerName, Integer amount) { |
| this.amount = amount; |
| this.buyerName = buyerName; |
| } |
| |
| public void setAmount(Integer amount) { |
| this.amount = amount; |
| } |
| |
| public void setBuyerName(String buyerName) { |
| this.buyerName = buyerName; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| OrderBean orderBean = (OrderBean) o; |
| return Objects.equals(amount, orderBean.amount) |
| && Objects.equals(buyerName, orderBean.buyerName); |
| } |
| |
| @Override |
| public int hashCode() { |
| |
| return Objects.hash(amount, buyerName); |
| } |
| } |
| |
| @Test |
| public void testSelect() { |
| PCollection<PersonBean> input = |
| PBegin.in(pipeline) |
| .apply("input", Create.of(new PersonBean("Foo", 5), new PersonBean("Bar", 53))); |
| |
| String sql = "SELECT name, ageYears FROM PCOLLECTION"; |
| |
| PCollection<Row> result = input.apply("sql", SqlTransform.query(sql)); |
| |
| PAssert.that(result) |
| .containsInAnyOrder( |
| TestUtils.rowsBuilderOf( |
| Schema.builder().addStringField("name").addInt32Field("ageYears").build()) |
| .addRows( |
| "Foo", 5, |
| "Bar", 53) |
| .getRows()); |
| |
| pipeline.run(); |
| } |
| |
| @Test |
| public void testProject() { |
| PCollection<PersonBean> input = |
| PBegin.in(pipeline) |
| .apply("input", Create.of(new PersonBean("Foo", 5), new PersonBean("Bar", 53))); |
| |
| String sql = "SELECT name FROM PCOLLECTION"; |
| |
| PCollection<Row> result = input.apply("sql", SqlTransform.query(sql)); |
| |
| PAssert.that(result) |
| .containsInAnyOrder( |
| TestUtils.rowsBuilderOf(Schema.builder().addStringField("name").build()) |
| .addRows("Foo", "Bar") |
| .getRows()); |
| |
| pipeline.run(); |
| } |
| |
| @Test |
| public void testJoin() { |
| PCollection<PersonBean> people = |
| PBegin.in(pipeline) |
| .apply("people", Create.of(new PersonBean("Foo", 5), new PersonBean("Bar", 53))); |
| |
| PCollection<OrderBean> orders = |
| PBegin.in(pipeline) |
| .apply( |
| "orders", |
| Create.of( |
| new OrderBean("Foo", 15), |
| new OrderBean("Foo", 10), |
| new OrderBean("Foo", 5), |
| new OrderBean("Bar", 53), |
| new OrderBean("Bar", 54), |
| new OrderBean("Bar", 55))); |
| |
| String sql = |
| "SELECT name, amount " |
| + "FROM buyers INNER JOIN orders " |
| + "ON buyerName = name " |
| + "WHERE ageYears = 5"; |
| |
| PCollection<Row> result = |
| tuple( |
| "buyers", people, |
| "orders", orders) |
| .apply("sql", SqlTransform.query(sql)); |
| |
| PAssert.that(result) |
| .containsInAnyOrder( |
| TestUtils.rowsBuilderOf( |
| Schema.builder().addStringField("name").addInt32Field("amount").build()) |
| .addRows( |
| "Foo", 15, |
| "Foo", 10, |
| "Foo", 5) |
| .getRows()); |
| |
| pipeline.run(); |
| } |
| |
| @Test |
| public void testAggregation() { |
| PCollection<PersonBean> people = |
| PBegin.in(pipeline) |
| .apply("people", Create.of(new PersonBean("Foo", 5), new PersonBean("Bar", 53))); |
| |
| PCollection<OrderBean> orders = |
| PBegin.in(pipeline) |
| .apply( |
| "orders", |
| Create.of( |
| new OrderBean("Foo", 15), |
| new OrderBean("Foo", 10), |
| new OrderBean("Foo", 5), |
| new OrderBean("Bar", 53), |
| new OrderBean("Bar", 54), |
| new OrderBean("Bar", 55))); |
| |
| String sql = |
| "SELECT name, SUM(amount) as total " |
| + "FROM buyers INNER JOIN orders " |
| + "ON buyerName = name " |
| + "GROUP BY name"; |
| |
| PCollection<Row> result = |
| tuple( |
| "buyers", people, |
| "orders", orders) |
| .apply("sql", SqlTransform.query(sql)); |
| |
| PAssert.that(result) |
| .containsInAnyOrder( |
| TestUtils.rowsBuilderOf( |
| Schema.builder().addStringField("name").addInt32Field("total").build()) |
| .addRows( |
| "Foo", 30, |
| "Bar", 162) |
| .getRows()); |
| |
| pipeline.run(); |
| } |
| } |