| /* |
| * 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.client.command; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| import org.apache.accumulo.core.client.Connector; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.fluo.api.client.FluoClient; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.rya.api.persist.RyaDAOException; |
| import org.apache.rya.indexing.pcj.fluo.api.CreateFluoPcj; |
| import org.apache.rya.indexing.pcj.fluo.app.query.UnsupportedQueryException; |
| import org.apache.rya.indexing.pcj.fluo.client.PcjAdminClientCommand; |
| import org.apache.rya.indexing.pcj.fluo.client.util.ParsedQueryRequest; |
| import org.apache.rya.indexing.pcj.storage.PcjException; |
| import org.apache.rya.indexing.pcj.storage.PrecomputedJoinStorage; |
| import org.apache.rya.indexing.pcj.storage.accumulo.AccumuloPcjStorage; |
| import org.apache.rya.rdftriplestore.RyaSailRepository; |
| import org.eclipse.rdf4j.query.MalformedQueryException; |
| |
| import com.beust.jcommander.JCommander; |
| import com.beust.jcommander.Parameter; |
| import com.beust.jcommander.ParameterException; |
| |
| import edu.umd.cs.findbugs.annotations.DefaultAnnotation; |
| import edu.umd.cs.findbugs.annotations.NonNull; |
| |
| /** |
| * A command that creates a creates a new PCJ in the Fluo app and loads historic |
| * statement pattern matches for it. |
| */ |
| @DefaultAnnotation(NonNull.class) |
| public class NewQueryCommand implements PcjAdminClientCommand { |
| private static final Logger log = LogManager.getLogger(NewQueryCommand.class); |
| |
| /** |
| * Command line parameters that are used by this command to configure itself. |
| */ |
| private static final class Parameters { |
| @Parameter(names = "--queryRequestFile", required = true, description = "The path to a file containing the SPARQL query that will be loaded into the Fluo app.") |
| private String queryRequestFile; |
| } |
| |
| @Override |
| public String getCommand() { |
| return "new-query"; |
| } |
| |
| @Override |
| public String getDescription() { |
| return "Add a SPARQL query to the Fluo app"; |
| } |
| |
| @Override |
| public String getUsage() { |
| final JCommander parser = new JCommander(new Parameters()); |
| |
| final StringBuilder usage = new StringBuilder(); |
| parser.usage(usage); |
| return usage.toString(); |
| } |
| |
| @Override |
| public void execute(final Connector accumulo, final String ryaTablePrefix, final RyaSailRepository rya, final FluoClient fluo, final String[] args) throws ArgumentsException, ExecutionException, UnsupportedQueryException { |
| checkNotNull(accumulo); |
| checkNotNull(fluo); |
| checkNotNull(args); |
| |
| log.trace("Executing the New Query Command..."); |
| |
| // Parse the command line arguments. |
| final Parameters params = new Parameters(); |
| try { |
| new JCommander(params, args); |
| } catch(final ParameterException e) { |
| throw new ArgumentsException("Could not create a new query because of invalid command line parameters.", e); |
| } |
| |
| // Load the request from the file into memory. |
| log.trace("Loading the query found in file '" + params.queryRequestFile + "' into the client app."); |
| ParsedQueryRequest request = null; |
| try { |
| final Path requestFile = Paths.get(params.queryRequestFile); |
| final String requestText = IOUtils.toString( Files.newInputStream(requestFile) ); |
| request = ParsedQueryRequest.parse(requestText); |
| } catch (final IOException e) { |
| throw new ExecutionException("Could not load the query request into memory.", e); |
| } |
| |
| // Load the query into the Fluo app. |
| log.trace("SPARQL Query: " + request.getQuery()); |
| log.trace("Var Orders: " + request.getVarOrders()); |
| log.trace("Loading these values into the Fluo app."); |
| final CreateFluoPcj createPcj = new CreateFluoPcj(); |
| try { |
| // Create the PCJ in Rya. |
| final String sparql = request.getQuery(); |
| |
| final PrecomputedJoinStorage pcjStorage = new AccumuloPcjStorage(accumulo, ryaTablePrefix); |
| final String pcjId = pcjStorage.createPcj(sparql); |
| |
| // Tell the Fluo PCJ Updater app to maintain the PCJ. |
| createPcj.withRyaIntegration(pcjId, pcjStorage, fluo, accumulo, ryaTablePrefix); |
| |
| } catch (MalformedQueryException | PcjException | RyaDAOException e) { |
| throw new ExecutionException("Could not create and load historic matches into the the Fluo app for the query.", e); |
| } |
| |
| log.trace("Finished executing the New Query Command."); |
| } |
| |
| |
| } |