| /* |
| * 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.flink.api.java.operators; |
| |
| import org.apache.flink.api.common.Plan; |
| import org.apache.flink.api.common.functions.FilterFunction; |
| import org.apache.flink.api.common.functions.FlatJoinFunction; |
| import org.apache.flink.api.common.operators.Operator; |
| import org.apache.flink.api.common.operators.base.InnerJoinOperatorBase; |
| import org.apache.flink.api.java.DataSet; |
| import org.apache.flink.api.java.ExecutionEnvironment; |
| import org.apache.flink.api.java.io.DiscardingOutputFormat; |
| import org.apache.flink.api.java.operators.translation.PlanFilterOperator; |
| import org.apache.flink.api.java.tuple.Tuple1; |
| import org.apache.flink.util.Collector; |
| import org.apache.flink.util.Visitor; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.Serializable; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * Test proper automated assignment of the transformation's name, if not set by the user. |
| */ |
| @SuppressWarnings("serial") |
| public class NamesTest implements Serializable { |
| |
| @Test |
| public void testDefaultName() { |
| ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); |
| |
| DataSet<String> strs = env.fromCollection(Arrays.asList("a", "b")); |
| |
| // WARNING: The test will fail if this line is being moved down in the file (the line-number is hard-coded) |
| strs.filter(new FilterFunction<String>() { |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public boolean filter(String value) throws Exception { |
| return value.equals("a"); |
| } |
| }).output(new DiscardingOutputFormat<String>()); |
| Plan plan = env.createProgramPlan(); |
| testForName("Filter at testDefaultName(NamesTest.java:55)", plan); |
| } |
| |
| @Test |
| public void testGivenName() { |
| ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); |
| |
| DataSet<String> strs = env.fromCollection(Arrays.asList("a", "b")); |
| strs.filter(new FilterFunction<String>() { |
| private static final long serialVersionUID = 1L; |
| @Override |
| public boolean filter(String value) throws Exception { |
| return value.equals("a"); |
| } |
| }).name("GivenName").output(new DiscardingOutputFormat<String>()); |
| Plan plan = env.createProgramPlan(); |
| testForName("GivenName", plan); |
| } |
| |
| @Test |
| public void testJoinWith() { |
| ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); |
| |
| List<Tuple1<String>> strLi = new ArrayList<Tuple1<String>>(); |
| strLi.add(new Tuple1<String>("a")); |
| strLi.add(new Tuple1<String>("b")); |
| |
| DataSet<Tuple1<String>> strs = env.fromCollection(strLi); |
| DataSet<Tuple1<String>> strs1 = env.fromCollection(strLi); |
| strs.join(strs1).where(0).equalTo(0).with(new FlatJoinFunction<Tuple1<String>, Tuple1<String>, String>() { |
| @Override |
| public void join(Tuple1<String> first, Tuple1<String> second, Collector<String> out) throws Exception { |
| // |
| } |
| }) |
| .output(new DiscardingOutputFormat<String>()); |
| Plan plan = env.createProgramPlan(); |
| plan.accept(new Visitor<Operator<?>>() { |
| @Override |
| public boolean preVisit(Operator<?> visitable) { |
| if (visitable instanceof InnerJoinOperatorBase) { |
| Assert.assertEquals("Join at testJoinWith(NamesTest.java:93)", visitable.getName()); |
| } |
| return true; |
| } |
| |
| @Override |
| public void postVisit(Operator<?> visitable) {} |
| }); |
| } |
| |
| private static void testForName(final String expected, Plan plan) { |
| plan.accept(new Visitor<Operator<?>>() { |
| @Override |
| public boolean preVisit(Operator<?> visitable) { |
| if (visitable instanceof PlanFilterOperator<?>) { |
| // cast is actually not required. Its just a check for the right element |
| PlanFilterOperator<?> filterOp = (PlanFilterOperator<?>) visitable; |
| Assert.assertEquals(expected, filterOp.getName()); |
| } |
| return true; |
| } |
| |
| @Override |
| public void postVisit(Operator<?> visitable) { |
| // |
| } |
| }); |
| } |
| } |