| /* |
| * 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.rya.streams.kafka.processors.projection; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.UUID; |
| import java.util.stream.Collectors; |
| |
| import org.apache.kafka.streams.processor.ProcessorContext; |
| import org.apache.rya.api.function.projection.MultiProjectionEvaluator; |
| import org.apache.rya.api.model.VisibilityBindingSet; |
| import org.apache.rya.streams.kafka.RdfTestUtil; |
| import org.apache.rya.streams.kafka.processors.ProcessorResult; |
| import org.apache.rya.streams.kafka.processors.ProcessorResult.ResultType; |
| import org.apache.rya.streams.kafka.processors.ProcessorResult.UnaryResult; |
| import org.apache.rya.streams.kafka.processors.projection.MultiProjectionProcessorSupplier.MultiProjectionProcessor; |
| import org.eclipse.rdf4j.model.BNode; |
| import org.eclipse.rdf4j.model.ValueFactory; |
| import org.eclipse.rdf4j.model.impl.SimpleValueFactory; |
| import org.eclipse.rdf4j.model.vocabulary.RDF; |
| import org.eclipse.rdf4j.query.algebra.MultiProjection; |
| import org.eclipse.rdf4j.query.impl.MapBindingSet; |
| import org.junit.Test; |
| import org.mockito.ArgumentCaptor; |
| |
| /** |
| * Unit test the methods of {@link MultiProjectionProcessor}. |
| */ |
| public class MultiProjectionProcessorTest { |
| |
| @Test |
| public void showProjectionFunctionIsCalled() throws Exception { |
| // The SPARQL that will define the projection. |
| final MultiProjection multiProjection = RdfTestUtil.getMultiProjection( |
| "CONSTRUCT {" + |
| "_:b a <urn:movementObservation> ; " + |
| "<urn:location> ?location ; " + |
| "<urn:direction> ?direction ; " + |
| "}" + |
| "WHERE {" + |
| "?thing <urn:corner> ?location ." + |
| "?thing <urn:compass> ?direction." + |
| "}"); |
| |
| // Create a Binding Set that contains the result of the WHERE clause. |
| final ValueFactory vf = SimpleValueFactory.getInstance(); |
| final MapBindingSet inputBs = new MapBindingSet(); |
| inputBs.addBinding("location", vf.createIRI("urn:corner1")); |
| inputBs.addBinding("direction", vf.createIRI("urn:NW")); |
| final VisibilityBindingSet inputVisBs = new VisibilityBindingSet(inputBs, "a|b"); |
| |
| // Make the expected results. |
| final Set<VisibilityBindingSet> expected = new HashSet<>(); |
| final String blankNodeId = UUID.randomUUID().toString(); |
| final BNode blankNode = vf.createBNode(blankNodeId); |
| |
| MapBindingSet expectedBs = new MapBindingSet(); |
| expectedBs.addBinding("subject", blankNode); |
| expectedBs.addBinding("predicate", RDF.TYPE); |
| expectedBs.addBinding("object", vf.createIRI("urn:movementObservation")); |
| expected.add(new VisibilityBindingSet(expectedBs, "a|b")); |
| |
| expectedBs = new MapBindingSet(); |
| expectedBs.addBinding("subject", blankNode); |
| expectedBs.addBinding("predicate", vf.createIRI("urn:direction")); |
| expectedBs.addBinding("object", vf.createIRI("urn:NW")); |
| expected.add(new VisibilityBindingSet(expectedBs, "a|b")); |
| |
| expectedBs = new MapBindingSet(); |
| expectedBs.addBinding("subject", blankNode); |
| expectedBs.addBinding("predicate", vf.createIRI("urn:location")); |
| expectedBs.addBinding("object", vf.createIRI("urn:corner1")); |
| expected.add(new VisibilityBindingSet(expectedBs, "a|b")); |
| |
| // Mock the processor context that will be invoked. |
| final ProcessorContext context = mock(ProcessorContext.class); |
| |
| // Run the test. |
| final MultiProjectionProcessor processor = new MultiProjectionProcessor( |
| MultiProjectionEvaluator.make(multiProjection, () -> blankNodeId), |
| result -> ProcessorResult.make(new UnaryResult(result))); |
| processor.init(context); |
| processor.process("key", ProcessorResult.make(new UnaryResult(inputVisBs))); |
| |
| final ArgumentCaptor<ProcessorResult> results = ArgumentCaptor.forClass(ProcessorResult.class); |
| verify(context, times(3)).forward(any(), results.capture()); |
| |
| final Set<VisibilityBindingSet> resultBindingSets = results.getAllValues().stream() |
| .map(result -> { |
| return (result.getType() == ResultType.UNARY) ? result.getUnary().getResult() : result.getBinary().getResult(); |
| }) |
| .collect(Collectors.toSet()); |
| |
| assertEquals(expected, resultBindingSets); |
| } |
| } |