| /** |
| * 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.kafka.connect.mongo; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import java.util.Arrays; |
| import java.util.Map; |
| import java.util.Optional; |
| |
| import org.apache.accumulo.core.client.AccumuloException; |
| import org.apache.accumulo.core.client.AccumuloSecurityException; |
| import org.apache.kafka.connect.errors.ConnectException; |
| import org.apache.rya.api.client.RyaClient; |
| import org.apache.rya.api.client.RyaClientException; |
| import org.apache.rya.api.client.mongo.MongoConnectionDetails; |
| import org.apache.rya.api.client.mongo.MongoRyaClientFactory; |
| import org.apache.rya.api.log.LogUtils; |
| import org.apache.rya.api.persist.RyaDAOException; |
| import org.apache.rya.indexing.accumulo.ConfigUtils; |
| import org.apache.rya.kafka.connect.api.sink.RyaSinkTask; |
| import org.apache.rya.mongodb.MongoDBRdfConfiguration; |
| import org.apache.rya.rdftriplestore.inference.InferenceEngineException; |
| import org.apache.rya.sail.config.RyaSailFactory; |
| import org.eclipse.rdf4j.sail.Sail; |
| import org.eclipse.rdf4j.sail.SailException; |
| |
| import com.google.common.base.Strings; |
| import com.mongodb.MongoClient; |
| import com.mongodb.MongoCredential; |
| import com.mongodb.ServerAddress; |
| |
| import edu.umd.cs.findbugs.annotations.DefaultAnnotation; |
| import edu.umd.cs.findbugs.annotations.NonNull; |
| import edu.umd.cs.findbugs.annotations.Nullable; |
| |
| /** |
| * A {@link RyaSinkTask} that uses the Mongo DB implementation of Rya to store data. |
| */ |
| @DefaultAnnotation(NonNull.class) |
| public class MongoRyaSinkTask extends RyaSinkTask { |
| |
| @Override |
| protected void checkRyaInstanceExists(final Map<String, String> taskConfig) throws IllegalStateException { |
| requireNonNull(taskConfig); |
| |
| // Parse the configuration object. |
| final MongoRyaSinkConfig config = new MongoRyaSinkConfig(taskConfig); |
| @Nullable |
| final String username = Strings.isNullOrEmpty(config.getUsername()) ? null : config.getUsername(); |
| @Nullable |
| final char[] password = Strings.isNullOrEmpty(config.getPassword()) ? null : config.getPassword().toCharArray(); |
| |
| // Connect a Mongo Client to the configured Mongo DB instance. |
| final ServerAddress serverAddr = new ServerAddress(config.getHostname(), config.getPort()); |
| final boolean hasCredentials = username != null && password != null; |
| |
| try(MongoClient mongoClient = hasCredentials ? |
| new MongoClient(serverAddr, Arrays.asList(MongoCredential.createCredential(username, config.getRyaInstanceName(), password))) : |
| new MongoClient(serverAddr)) { |
| // Use a RyaClient to see if the configured instance exists. |
| // Create the Mongo Connection Details that describe the Mongo DB Server we are interacting with. |
| final MongoConnectionDetails connectionDetails = new MongoConnectionDetails( |
| config.getHostname(), |
| config.getPort(), |
| Optional.ofNullable(username), |
| Optional.ofNullable(password)); |
| |
| final RyaClient client = MongoRyaClientFactory.build(connectionDetails, mongoClient); |
| if(!client.getInstanceExists().exists( config.getRyaInstanceName() )) { |
| throw new ConnectException("The Rya Instance named " + |
| LogUtils.clean(config.getRyaInstanceName()) + " has not been installed."); |
| } |
| } catch(final RyaClientException e) { |
| throw new ConnectException("Unable to determine if the Rya Instance named " + |
| LogUtils.clean(config.getRyaInstanceName()) + " has been installed.", e); |
| } |
| } |
| |
| @Override |
| protected Sail makeSail(final Map<String, String> taskConfig) { |
| requireNonNull(taskConfig); |
| |
| // Parse the configuration object. |
| final MongoRyaSinkConfig config = new MongoRyaSinkConfig(taskConfig); |
| |
| // Move the configuration into a Rya Configuration object. |
| final MongoDBRdfConfiguration ryaConfig = new MongoDBRdfConfiguration(); |
| ConfigUtils.setUseMongo(ryaConfig, true); |
| ryaConfig.setMongoDBName( config.getRyaInstanceName() ); |
| ryaConfig.setTablePrefix( config.getRyaInstanceName() ); |
| ryaConfig.setMongoHostname( config.getHostname() ); |
| ryaConfig.setMongoPort( "" + config.getPort() ); |
| |
| if(!Strings.isNullOrEmpty(config.getUsername()) && !Strings.isNullOrEmpty(config.getPassword())) { |
| ryaConfig.setMongoUser( config.getUsername() ); |
| ryaConfig.setMongoPassword( config.getPassword() ); |
| } |
| |
| // Create the Sail object. |
| try { |
| return RyaSailFactory.getInstance(ryaConfig); |
| } catch (SailException | AccumuloException | AccumuloSecurityException | RyaDAOException | InferenceEngineException e) { |
| throw new ConnectException("Could not connect to the Rya Instance named " + config.getRyaInstanceName(), e); |
| } |
| } |
| } |