| /** |
| * 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; |
| |
| import static java.util.Objects.requireNonNull; |
| |
| import org.apache.rya.api.instance.RyaDetails; |
| import org.apache.rya.api.instance.RyaDetails.RyaStreamsDetails; |
| import org.apache.rya.api.instance.RyaDetailsRepository; |
| import org.apache.rya.api.instance.RyaDetailsRepository.RyaDetailsRepositoryException; |
| import org.apache.rya.api.instance.RyaDetailsUpdater; |
| import org.apache.rya.api.instance.RyaDetailsUpdater.RyaDetailsMutator.CouldNotApplyMutationException; |
| |
| import edu.umd.cs.findbugs.annotations.DefaultAnnotation; |
| import edu.umd.cs.findbugs.annotations.NonNull; |
| |
| /** |
| * A base class that implements the core functionality of the {@link SetRyaStreamsConfiguration} interactor. |
| * Subclasses just need to implement {@link #getRyaDetailsRepo(String)} so that the common code may update |
| * any implementation of that repository. |
| */ |
| @DefaultAnnotation(NonNull.class) |
| public abstract class SetRyaStreamsConfigurationBase implements SetRyaStreamsConfiguration { |
| |
| private final InstanceExists instanceExists; |
| |
| /** |
| * Constructs an instance of {@link SetRyaStreamsConfigurationBase}. |
| * |
| * @param instanceExists - The interactor used to verify Rya instances exist. (not null) |
| */ |
| public SetRyaStreamsConfigurationBase(final InstanceExists instanceExists) { |
| this.instanceExists = requireNonNull(instanceExists); |
| } |
| |
| /** |
| * Get a {@link RyaDetailsRepository} that is connected to a specific instance of Rya. |
| * |
| * @param ryaInstance - The Rya instance the repository must be connected to. (not null) |
| * @return A {@link RyaDetailsRepository} connected to the specified Rya instance. |
| */ |
| protected abstract RyaDetailsRepository getRyaDetailsRepo(String ryaInstance); |
| |
| @Override |
| public void setRyaStreamsConfiguration(final String ryaInstance, final RyaStreamsDetails streamsDetails) throws InstanceDoesNotExistException, RyaClientException{ |
| requireNonNull(ryaInstance); |
| requireNonNull(streamsDetails); |
| |
| // Verify the Rya Instance exists. |
| if(!instanceExists.exists(ryaInstance)) { |
| throw new InstanceDoesNotExistException("There is no Rya instance named '" + ryaInstance + "' in this storage."); |
| } |
| |
| // Update the old details object using the provided Rya Streams details. |
| final RyaDetailsRepository repo = getRyaDetailsRepo(ryaInstance); |
| try { |
| new RyaDetailsUpdater(repo).update(oldDetails -> { |
| final RyaDetails.Builder builder = RyaDetails.builder(oldDetails); |
| builder.setRyaStreamsDetails(streamsDetails); |
| return builder.build(); |
| }); |
| } catch (CouldNotApplyMutationException | RyaDetailsRepositoryException e) { |
| throw new RyaClientException("Unable to update which Rya Streams subsystem is used by the '" + |
| ryaInstance + "' Rya instance.", e); |
| } |
| } |
| } |