| /* |
| * 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; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Properties; |
| import java.util.Set; |
| |
| import org.apache.accumulo.core.client.AccumuloException; |
| import org.apache.accumulo.core.client.AccumuloSecurityException; |
| import org.apache.accumulo.core.client.Connector; |
| import org.apache.accumulo.core.client.Instance; |
| import org.apache.accumulo.core.client.ZooKeeperInstance; |
| import org.apache.accumulo.core.client.security.tokens.PasswordToken; |
| import org.apache.fluo.api.client.FluoClient; |
| import org.apache.fluo.api.client.FluoFactory; |
| import org.apache.fluo.api.config.FluoConfiguration; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.rya.accumulo.AccumuloRdfConfiguration; |
| import org.apache.rya.accumulo.AccumuloRyaDAO; |
| import org.apache.rya.indexing.pcj.fluo.app.query.UnsupportedQueryException; |
| import org.apache.rya.indexing.pcj.fluo.client.PcjAdminClientCommand.ArgumentsException; |
| import org.apache.rya.indexing.pcj.fluo.client.PcjAdminClientCommand.ExecutionException; |
| import org.apache.rya.indexing.pcj.fluo.client.command.CountUnprocessedStatementsCommand; |
| import org.apache.rya.indexing.pcj.fluo.client.command.ListQueriesCommand; |
| import org.apache.rya.indexing.pcj.fluo.client.command.LoadTriplesCommand; |
| import org.apache.rya.indexing.pcj.fluo.client.command.NewQueryCommand; |
| import org.apache.rya.indexing.pcj.fluo.client.command.QueryReportCommand; |
| import org.apache.rya.rdftriplestore.RdfCloudTripleStore; |
| import org.apache.rya.rdftriplestore.RyaSailRepository; |
| import org.eclipse.rdf4j.repository.RepositoryException; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.Lists; |
| |
| import edu.umd.cs.findbugs.annotations.DefaultAnnotation; |
| import edu.umd.cs.findbugs.annotations.NonNull; |
| |
| /** |
| * An application that helps Rya PCJ administrators interact with the cluster. |
| */ |
| @DefaultAnnotation(NonNull.class) |
| public class PcjAdminClient { |
| |
| private static final Logger log = LogManager.getLogger(PcjAdminClient.class); |
| |
| private static final Path PROPERTIES_FILE = Paths.get("conf/tool.properties"); |
| |
| /** |
| * Maps from command strings to the object that performs the command. |
| */ |
| private static final ImmutableMap<String, PcjAdminClientCommand> commands; |
| static { |
| final Set<Class<? extends PcjAdminClientCommand>> commandClasses = new HashSet<>(); |
| commandClasses.add(NewQueryCommand.class); |
| commandClasses.add(LoadTriplesCommand.class); |
| commandClasses.add(ListQueriesCommand.class); |
| commandClasses.add(QueryReportCommand.class); |
| commandClasses.add(CountUnprocessedStatementsCommand.class); |
| |
| final ImmutableMap.Builder<String, PcjAdminClientCommand> builder = ImmutableMap.builder(); |
| for(final Class<? extends PcjAdminClientCommand> commandClass : commandClasses) { |
| try { |
| final PcjAdminClientCommand command = commandClass.newInstance(); |
| builder.put(command.getCommand(), command); |
| } catch (InstantiationException | IllegalAccessException e) { |
| System.err.println("Could not run the application because a PcjCommand is missing its empty constructor."); |
| e.printStackTrace(); |
| } |
| } |
| commands = builder.build(); |
| } |
| |
| /** |
| * Describes how this application may be used on the command line. |
| */ |
| private static final String usage = makeUsage(commands); |
| |
| public static void main(final String[] args) { |
| log.trace("Starting up the PCJ Admin Client."); |
| |
| // If no command provided or the command isn't recognized, then print the usage. |
| if(args.length == 0 || !commands.containsKey(args[0])) { |
| System.out.println(usage); |
| System.exit(-1); |
| } |
| |
| // Load the properties file. |
| final Properties props = new Properties(); |
| try (InputStream pin = Files.newInputStream(PROPERTIES_FILE)) { |
| props.load( pin ); |
| } catch (final IOException e) { |
| throw new RuntimeException("Could not load properties file: " + PROPERTIES_FILE, e); |
| } |
| |
| // Fetch the command that will be executed. |
| final String command = args[0]; |
| final String[] commandArgs = Arrays.copyOfRange(args, 1, args.length); |
| final PcjAdminClientCommand pcjCommand = commands.get(command); |
| |
| RyaSailRepository rya = null; |
| FluoClient fluo = null; |
| try { |
| // Connect to Accumulo, Rya, and Fluo. |
| final PcjAdminClientProperties clientProps = new PcjAdminClientProperties(props); |
| final Connector accumulo = createAccumuloConnector(clientProps); |
| rya = makeRyaRepository(clientProps, accumulo); |
| fluo = createFluoClient( clientProps ); |
| |
| // Execute the command. |
| pcjCommand.execute(accumulo, clientProps.getRyaTablePrefix(), rya, fluo, commandArgs); |
| |
| } catch (final AccumuloException | AccumuloSecurityException e) { |
| System.err.println("Could not connect to the Accumulo instance that hosts the export PCJ tables."); |
| e.printStackTrace(); |
| System.exit(-1); |
| } catch(final RepositoryException e) { |
| System.err.println("Could not connect to the Rya instance that hosts the historic RDF statements."); |
| e.printStackTrace(); |
| System.exit(-1); |
| } catch (final ArgumentsException e) { |
| System.err.println( pcjCommand.getUsage() ); |
| System.exit(-1); |
| } catch (final ExecutionException e) { |
| System.err.println("Could not execute the command."); |
| e.printStackTrace(); |
| System.exit(-1); |
| } catch (UnsupportedQueryException e) { |
| System.err.println("Could not execute the command because the query is invalid."); |
| e.printStackTrace(); |
| } finally { |
| log.trace("Shutting down the PCJ Admin Client."); |
| |
| if(rya != null) { |
| try { |
| rya.shutDown(); |
| } catch (final RepositoryException e) { |
| System.err.println("Problem while shutting down the Rya connection."); |
| e.printStackTrace(); |
| } |
| } |
| |
| if(fluo != null) { |
| fluo.close(); |
| } |
| } |
| } |
| |
| private static String makeUsage(final ImmutableMap<String, PcjAdminClientCommand> commands) { |
| final StringBuilder usage = new StringBuilder(); |
| usage.append("Usage: ").append(PcjAdminClient.class.getSimpleName()).append(" <command> (<argument> ... )\n"); |
| usage.append("\n"); |
| usage.append("Possible Commands:\n"); |
| |
| // Sort and find the max width of the commands. |
| final List<String> sortedCommandNames = Lists.newArrayList( commands.keySet() ); |
| Collections.sort(sortedCommandNames); |
| |
| int maxCommandLength = 0; |
| for(final String commandName : sortedCommandNames) { |
| maxCommandLength = commandName.length() > maxCommandLength ? commandName.length() : maxCommandLength; |
| } |
| |
| // Add each command to the usage. |
| final String commandFormat = " %-" + (maxCommandLength) + "s - %s\n"; |
| for(final String commandName : sortedCommandNames) { |
| final String commandDescription = commands.get(commandName).getDescription(); |
| usage.append( String.format(commandFormat, commandName, commandDescription) ); |
| } |
| |
| return usage.toString(); |
| } |
| |
| private static Connector createAccumuloConnector(final PcjAdminClientProperties clientProps) throws AccumuloException, AccumuloSecurityException { |
| checkNotNull(clientProps); |
| |
| // Connect to the Zookeepers. |
| final String instanceName = clientProps.getAccumuloInstance(); |
| final String zooServers = clientProps.getAccumuloZookeepers(); |
| final Instance inst = new ZooKeeperInstance(instanceName, zooServers); |
| |
| // Create a connector to the Accumulo that hosts the PCJ export tables. |
| return inst.getConnector(clientProps.getAccumuloUsername(), new PasswordToken(clientProps.getAccumuloPassword())); |
| } |
| |
| private static RyaSailRepository makeRyaRepository(final PcjAdminClientProperties clientProps, final Connector accumulo) throws RepositoryException { |
| checkNotNull(clientProps); |
| checkNotNull(accumulo); |
| |
| // Setup Rya configuration values. |
| final AccumuloRdfConfiguration ryaConf = new AccumuloRdfConfiguration(); |
| ryaConf.setTablePrefix( clientProps.getRyaTablePrefix() ); |
| |
| // Connect to the Rya repo. |
| final AccumuloRyaDAO accumuloRyaDao = new AccumuloRyaDAO(); |
| accumuloRyaDao.setConnector(accumulo); |
| accumuloRyaDao.setConf(ryaConf); |
| |
| final RdfCloudTripleStore ryaStore = new RdfCloudTripleStore(); |
| ryaStore.setRyaDAO(accumuloRyaDao); |
| |
| final RyaSailRepository ryaRepo = new RyaSailRepository(ryaStore); |
| ryaRepo.initialize(); |
| return ryaRepo; |
| } |
| |
| private static FluoClient createFluoClient(final PcjAdminClientProperties clientProps) { |
| checkNotNull(clientProps); |
| final FluoConfiguration fluoConfig = new FluoConfiguration(); |
| |
| // Fluo configuration values. |
| fluoConfig.setApplicationName( clientProps.getFluoAppName() ); |
| fluoConfig.setInstanceZookeepers( clientProps.getAccumuloZookeepers() + "/fluo" ); |
| |
| // Accumulo Connection Stuff. |
| fluoConfig.setAccumuloZookeepers( clientProps.getAccumuloZookeepers() ); |
| fluoConfig.setAccumuloInstance( clientProps.getAccumuloInstance() ); |
| fluoConfig.setAccumuloUser( clientProps.getAccumuloUsername() ); |
| fluoConfig.setAccumuloPassword( clientProps.getAccumuloPassword() ); |
| |
| // Connect the client. |
| return FluoFactory.newClient(fluoConfig); |
| } |
| } |