| /* |
| * 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.indexing.pcj.fluo.integration; |
| |
| import static java.util.Objects.requireNonNull; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.fluo.api.client.FluoClient; |
| import org.apache.fluo.api.client.FluoFactory; |
| import org.apache.fluo.api.client.Snapshot; |
| import org.apache.fluo.api.client.scanner.ColumnScanner; |
| import org.apache.fluo.api.client.scanner.RowScanner; |
| import org.apache.fluo.api.data.Bytes; |
| import org.apache.fluo.api.data.Span; |
| import org.apache.rya.api.client.RyaClient; |
| import org.apache.rya.api.client.accumulo.AccumuloRyaClientFactory; |
| import org.apache.rya.indexing.pcj.fluo.api.DeleteFluoPcj; |
| import org.apache.rya.pcj.fluo.test.base.RyaExportITBase; |
| import org.junit.Test; |
| import org.openrdf.model.Statement; |
| import org.openrdf.model.ValueFactory; |
| import org.openrdf.model.impl.ValueFactoryImpl; |
| import org.openrdf.repository.sail.SailRepositoryConnection; |
| |
| import com.google.common.collect.Sets; |
| |
| /** |
| * Tests that ensure the PCJ delete support works. |
| */ |
| public class CreateDeleteIT extends RyaExportITBase { |
| |
| @Test |
| public void deletePCJ() throws Exception { |
| // A query that finds people who talk to Eve and work at Chipotle. |
| final String sparql = |
| "SELECT ?x " + "WHERE { " + |
| "?x <http://talksTo> <http://Eve>. " + |
| "?x <http://worksAt> <http://Chipotle>." + |
| "}"; |
| |
| // Triples that are loaded into Rya before the PCJ is created. |
| final ValueFactory vf = new ValueFactoryImpl(); |
| final Set<Statement> statements = Sets.newHashSet( |
| vf.createStatement(vf.createURI("http://Alice"), vf.createURI("http://talksTo"), vf.createURI("http://Eve")), |
| vf.createStatement(vf.createURI("http://Bob"), vf.createURI("http://talksTo"), vf.createURI("http://Eve")), |
| vf.createStatement(vf.createURI("http://Charlie"), vf.createURI("http://talksTo"), vf.createURI("http://Eve")), |
| |
| vf.createStatement(vf.createURI("http://Eve"), vf.createURI("http://helps"), vf.createURI("http://Kevin")), |
| |
| vf.createStatement(vf.createURI("http://Bob"), vf.createURI("http://worksAt"), vf.createURI("http://Chipotle")), |
| vf.createStatement(vf.createURI("http://Charlie"), vf.createURI("http://worksAt"), vf.createURI("http://Chipotle")), |
| vf.createStatement(vf.createURI("http://Eve"), vf.createURI("http://worksAt"), vf.createURI("http://Chipotle")), |
| vf.createStatement(vf.createURI("http://David"), vf.createURI("http://worksAt"), vf.createURI("http://Chipotle"))); |
| |
| // Create the PCJ in Fluo and load the statements into Rya. |
| final String pcjId = loadData(sparql, statements); |
| |
| try(FluoClient fluoClient = FluoFactory.newClient(getFluoConfiguration())) { |
| // Ensure the data was loaded. |
| final List<Bytes> rows = getFluoTableEntries(fluoClient); |
| assertEquals(19, rows.size()); |
| |
| // Delete the PCJ from the Fluo application. |
| new DeleteFluoPcj(1).deletePcj(fluoClient, pcjId); |
| getMiniFluo().waitForObservers(); |
| |
| // Ensure all data related to the query has been removed. |
| final List<Bytes> empty_rows = getFluoTableEntries(fluoClient); |
| assertEquals(1, empty_rows.size()); |
| } |
| } |
| |
| @Test |
| public void deleteAggregation() throws Exception { |
| // A query that finds the maximum price for an item within the inventory. |
| final String sparql = |
| "SELECT (max(?price) as ?maxPrice) { " + |
| "?item <urn:price> ?price . " + |
| "}"; |
| |
| // Create the Statements that will be loaded into Rya. |
| final ValueFactory vf = new ValueFactoryImpl(); |
| final Collection<Statement> statements = Sets.newHashSet( |
| vf.createStatement(vf.createURI("urn:apple"), vf.createURI("urn:price"), vf.createLiteral(2.50)), |
| vf.createStatement(vf.createURI("urn:gum"), vf.createURI("urn:price"), vf.createLiteral(0.99)), |
| vf.createStatement(vf.createURI("urn:sandwich"), vf.createURI("urn:price"), vf.createLiteral(4.99))); |
| |
| // Create the PCJ in Fluo and load the statements into Rya. |
| final String pcjId = loadData(sparql, statements); |
| |
| try(FluoClient fluoClient = FluoFactory.newClient(getFluoConfiguration())) { |
| // Ensure the data was loaded. |
| final List<Bytes> rows = getFluoTableEntries(fluoClient); |
| assertEquals(11, rows.size()); |
| |
| // Delete the PCJ from the Fluo application. |
| new DeleteFluoPcj(1).deletePcj(fluoClient, pcjId); |
| getMiniFluo().waitForObservers(); |
| |
| // Ensure all data related to the query has been removed. |
| final List<Bytes> empty_rows = getFluoTableEntries(fluoClient); |
| assertEquals(1, empty_rows.size()); |
| } |
| } |
| |
| |
| private String loadData(final String sparql, final Collection<Statement> statements) throws Exception { |
| requireNonNull(sparql); |
| requireNonNull(statements); |
| |
| // Register the PCJ with Rya. |
| final RyaClient ryaClient = AccumuloRyaClientFactory.build(createConnectionDetails(), getAccumuloConnector()); |
| |
| final String pcjId = ryaClient.getCreatePCJ().createPCJ(getRyaInstanceName(), sparql, Sets.newHashSet()); |
| |
| // Write the data to Rya. |
| final SailRepositoryConnection ryaConn = getRyaSailRepository().getConnection(); |
| ryaConn.begin(); |
| ryaConn.add(statements); |
| ryaConn.commit(); |
| ryaConn.close(); |
| |
| // Wait for the Fluo application to finish computing the end result. |
| getMiniFluo().waitForObservers(); |
| |
| // The PCJ Id is the topic name the results will be written to. |
| return pcjId; |
| } |
| |
| private List<Bytes> getFluoTableEntries(final FluoClient fluoClient) { |
| try (Snapshot snapshot = fluoClient.newSnapshot()) { |
| final List<Bytes> rows = new ArrayList<>(); |
| final RowScanner rscanner = snapshot.scanner().over(Span.prefix("")).byRow().build(); |
| |
| for(final ColumnScanner cscanner: rscanner) { |
| rows.add(cscanner.getRow()); |
| } |
| |
| return rows; |
| } |
| } |
| } |