| /* |
| * 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.submarine.server.manager; |
| |
| import org.apache.submarine.commons.utils.exception.SubmarineRuntimeException; |
| import org.apache.submarine.server.SubmarineServer; |
| import org.apache.submarine.server.SubmitterManager; |
| import org.apache.submarine.server.api.Submitter; |
| import org.apache.submarine.server.api.environment.Environment; |
| import org.apache.submarine.server.api.notebook.Notebook; |
| import org.apache.submarine.server.api.notebook.NotebookId; |
| import org.apache.submarine.server.api.spec.NotebookSpec; |
| |
| import javax.ws.rs.core.Response; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.submarine.server.database.notebook.service.NotebookService; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class NotebookManager { |
| private static final Logger LOG = LoggerFactory.getLogger(NotebookManager.class); |
| |
| private static volatile NotebookManager manager; |
| |
| private final Submitter submitter; |
| |
| private final NotebookService notebookService; |
| |
| private NotebookManager(Submitter submitter, NotebookService notebookService) { |
| this.submitter = submitter; |
| this.notebookService = notebookService; |
| } |
| |
| private final AtomicInteger notebookCounter = new AtomicInteger(0); |
| |
| /** |
| * Get the singleton instance. |
| * |
| * @return object |
| */ |
| public static NotebookManager getInstance() { |
| if (manager == null) { |
| synchronized (NotebookManager.class) { |
| if (manager == null) { |
| manager = new NotebookManager(SubmitterManager.loadSubmitter(), new NotebookService()); |
| } |
| } |
| } |
| return manager; |
| } |
| |
| /** |
| * Create a notebook instance. |
| * |
| * @param spec NotebookSpec |
| * @return object |
| * @throws SubmarineRuntimeException the service error |
| */ |
| public Notebook createNotebook(NotebookSpec spec) throws SubmarineRuntimeException { |
| checkNotebookSpec(spec); |
| String lowerName = spec.getMeta().getName().toLowerCase(); |
| spec.getMeta().setName(lowerName); |
| NotebookId notebookId = generateNotebookId(); |
| |
| // create notebook |
| Notebook notebook = submitter.createNotebook(spec, notebookId.toString()); |
| notebook.setNotebookId(notebookId); |
| notebook.setSpec(spec); |
| |
| // environment information |
| NotebookSpec notebookSpec = notebook.getSpec(); |
| EnvironmentManager environmentManager = EnvironmentManager.getInstance(); |
| Environment environment = environmentManager.getEnvironment(spec.getEnvironment().getName()); |
| if (environment.getEnvironmentSpec() != null) { |
| notebookSpec.setEnvironment(environment.getEnvironmentSpec()); |
| } |
| notebook.setStatus(Notebook.Status.STATUS_CREATING.getValue()); |
| notebookService.insert(notebook); |
| return notebook; |
| } |
| |
| /** |
| * List notebook instances. |
| * |
| * @param namespace namespace, if null will return all notebooks |
| * @return list |
| * @throws SubmarineRuntimeException the service error |
| */ |
| public List<Notebook> listNotebooksByNamespace(String namespace) throws SubmarineRuntimeException { |
| List<Notebook> notebookList = new ArrayList<>(); |
| for (Notebook notebook : notebookService.selectAll()) { |
| if (namespace == null || namespace.length() == 0 ){ |
| notebookList.add(notebook); |
| } |
| } |
| return notebookList; |
| } |
| |
| /** |
| * Get a list of notebook with user id. |
| * |
| * @param id user id |
| * @return a list of notebook |
| */ |
| public List<Notebook> listNotebooksByUserId(String id) { |
| List<Notebook> serviceNotebooks = notebookService.selectAll(); |
| List<Notebook> notebookList = new ArrayList<>(); |
| for (Notebook nb : serviceNotebooks) { |
| notebookList.add(nb); |
| } |
| return notebookList; |
| } |
| |
| /** |
| * Get a notebook instance. |
| * |
| * @param id notebook id |
| * @return object |
| * @throws SubmarineRuntimeException the service error |
| */ |
| public Notebook getNotebook(String id) throws SubmarineRuntimeException { |
| checkNotebookId(id); |
| |
| Notebook notebook = notebookService.select(id); |
| if (notebook == null) { |
| throw new SubmarineRuntimeException(Response.Status.NOT_FOUND.getStatusCode(), |
| "Notebook not found."); |
| } |
| Notebook foundNotebook = submitter.findNotebook(notebook.getSpec(), id); |
| foundNotebook.rebuild(notebook); |
| foundNotebook.setNotebookId(NotebookId.fromString(id)); |
| |
| return foundNotebook; |
| } |
| |
| /** |
| * Delete the notebook instance. |
| * |
| * @param id notebook id |
| * @return object |
| * @throws SubmarineRuntimeException the service error |
| */ |
| public Notebook deleteNotebook(String id) throws SubmarineRuntimeException { |
| Notebook notebook = getNotebook(id); |
| Notebook patchNotebook = submitter.deleteNotebook(notebook.getSpec(), id); |
| notebookService.delete(id); |
| notebook.rebuild(patchNotebook); |
| return notebook; |
| } |
| |
| /** |
| * Generate a unique notebook id. |
| * |
| * @return notebook id |
| */ |
| private NotebookId generateNotebookId() { |
| return NotebookId.newInstance(SubmarineServer.getServerTimeStamp(), |
| notebookCounter.incrementAndGet()); |
| } |
| |
| /** |
| * Check if notebook spec is valid. |
| * |
| * @param spec notebook spec |
| */ |
| private void checkNotebookSpec(NotebookSpec spec) { |
| //TODO(ryan): The method need to be improved |
| if (spec == null) { |
| throw new SubmarineRuntimeException(Response.Status.OK.getStatusCode(), |
| "Invalid. Notebook Spec object is null."); |
| } |
| List<Notebook> serviceNotebooks = notebookService.selectAll(); |
| for (Notebook notebook: serviceNotebooks) { |
| if (notebook.getSpec().getMeta().getName().equals(spec.getMeta().getName())) { |
| throw new SubmarineRuntimeException(Response.Status.OK.getStatusCode(), |
| "Invalid. Notebook with same name is already existed."); |
| } |
| } |
| } |
| |
| private void checkNotebookId(String id) throws SubmarineRuntimeException { |
| NotebookId notebookId = NotebookId.fromString(id); |
| if (notebookId == null) { |
| throw new SubmarineRuntimeException(Response.Status.NOT_FOUND.getStatusCode(), |
| "Notebook not found."); |
| } |
| } |
| |
| } |