| /* |
| * 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.schemas.transforms; |
| |
| import java.util.Objects; |
| import org.apache.beam.sdk.schemas.JavaFieldSchema; |
| import org.apache.beam.sdk.schemas.annotations.DefaultSchema; |
| import org.apache.beam.sdk.testing.NeedsRunner; |
| import org.apache.beam.sdk.testing.PAssert; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.testing.UsesSchema; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.Lists; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Test for {@link Filter}. * */ |
| @RunWith(JUnit4.class) |
| @Category(UsesSchema.class) |
| public class FilterTest { |
| @Rule public final transient TestPipeline pipeline = TestPipeline.create(); |
| @Rule public transient ExpectedException thrown = ExpectedException.none(); |
| |
| /** POJO used to test schemas. * */ |
| @DefaultSchema(JavaFieldSchema.class) |
| public static class POJO { |
| public String field1; |
| public int field2; |
| public int field3; |
| |
| public POJO(String field1, int field2, int field3) { |
| this.field1 = field1; |
| this.field2 = field2; |
| this.field3 = field3; |
| } |
| |
| public POJO() {} |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| POJO pojo = (POJO) o; |
| return Objects.equals(field1, pojo.field1) |
| && Objects.equals(field2, pojo.field2) |
| && Objects.equals(field3, pojo.field3); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(field1, field2, field3); |
| } |
| }; |
| |
| @Test |
| @Category(NeedsRunner.class) |
| public void testMissingFieldName() { |
| thrown.expect(IllegalArgumentException.class); |
| pipeline |
| .apply(Create.of(new POJO("pass", 52, 2))) |
| .apply(Filter.<POJO>create().whereFieldName("missing", f -> true)); |
| pipeline.run(); |
| } |
| |
| @Test |
| @Category(NeedsRunner.class) |
| public void testMissingFieldIndex() { |
| thrown.expect(IllegalArgumentException.class); |
| pipeline |
| .apply(Create.of(new POJO("pass", 52, 2))) |
| .apply(Filter.<POJO>create().whereFieldId(23, f -> true)); |
| pipeline.run(); |
| } |
| |
| @Test |
| @Category(NeedsRunner.class) |
| public void testFilterFieldsByName() { |
| // Pass only elements where field1 == "pass && field2 > 50. |
| PCollection<POJO> filtered = |
| pipeline |
| .apply( |
| Create.of( |
| new POJO("pass", 52, 2), new POJO("pass", 2, 2), new POJO("fail", 100, 100))) |
| .apply( |
| Filter.<POJO>create() |
| .whereFieldName("field1", s -> "pass".equals(s)) |
| .whereFieldName("field2", i -> (Integer) i > 50)); |
| PAssert.that(filtered).containsInAnyOrder(new POJO("pass", 52, 2)); |
| pipeline.run(); |
| } |
| |
| @Test |
| @Category(NeedsRunner.class) |
| public void testFilterMultipleFields() { |
| // Pass only elements where field1 + field2 >= 100. |
| PCollection<POJO> filtered = |
| pipeline |
| .apply(Create.of(new POJO("", 52, 48), new POJO("", 52, 2), new POJO("", 70, 33))) |
| .apply( |
| Filter.<POJO>create() |
| .whereFieldNames( |
| Lists.newArrayList("field2", "field3"), |
| r -> r.getInt32("field2") + r.getInt32("field3") >= 100)); |
| PAssert.that(filtered).containsInAnyOrder(new POJO("", 52, 48), new POJO("", 70, 33)); |
| pipeline.run(); |
| } |
| } |