| /** |
| * 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.api.client.mongo; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import java.util.Set; |
| |
| import org.apache.rya.api.client.CreatePCJ; |
| import org.apache.rya.api.client.InstanceDoesNotExistException; |
| import org.apache.rya.api.client.InstanceExists; |
| import org.apache.rya.api.client.RyaClientException; |
| import org.apache.rya.indexing.pcj.storage.PrecomputedJoinStorage.PCJStorageException; |
| import org.apache.rya.indexing.pcj.storage.mongo.MongoPcjStorage; |
| |
| import com.google.common.collect.Sets; |
| import com.mongodb.MongoClient; |
| |
| /** |
| * A Mongo implementation of {@link CreatePCJ}. |
| */ |
| public class MongoCreatePCJ implements CreatePCJ { |
| private final InstanceExists instanceExists; |
| private final MongoClient mongoClient; |
| |
| /** |
| * Constructs an instance of {@link MongoCreatePCJ}. |
| * |
| * @param mongoClient - The {@link MongoClient} used to create a new PCJ. (not null) |
| * @param instanceExists - The interactor used to check if a Rya instance exists. (not null) |
| */ |
| public MongoCreatePCJ( |
| final MongoClient mongoClient, |
| final MongoInstanceExists instanceExists) { |
| this.mongoClient = requireNonNull(mongoClient); |
| this.instanceExists = requireNonNull(instanceExists); |
| } |
| |
| @Override |
| public String createPCJ(final String ryaInstanceName, final String sparql, final Set<ExportStrategy> strategies) throws InstanceDoesNotExistException, RyaClientException { |
| requireNonNull(ryaInstanceName); |
| requireNonNull(sparql); |
| |
| // Ensure the Rya Instance exists. |
| if (!instanceExists.exists(ryaInstanceName)) { |
| throw new InstanceDoesNotExistException(String.format("There is no Rya instance named '%s'.", ryaInstanceName)); |
| } |
| |
| try(final MongoPcjStorage pcjStore = new MongoPcjStorage(mongoClient, ryaInstanceName)) { |
| return pcjStore.createPcj(sparql); |
| } catch (final PCJStorageException e) { |
| throw new RyaClientException("Unable to create PCJ for: " + sparql, e); |
| } |
| } |
| |
| @Override |
| public String createPCJ(final String instanceName, final String sparql) throws InstanceDoesNotExistException, RyaClientException { |
| return createPCJ(instanceName, sparql, Sets.newHashSet(ExportStrategy.RYA)); |
| } |
| |
| } |