| /** |
| * 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.falcon.extensions.jdbc; |
| |
| import org.apache.falcon.extensions.ExtensionStatus; |
| import org.apache.falcon.extensions.ExtensionType; |
| import org.apache.falcon.extensions.store.ExtensionStore; |
| import org.apache.falcon.persistence.ExtensionBean; |
| import org.apache.falcon.persistence.ExtensionJobsBean; |
| import org.apache.falcon.persistence.PersistenceConstants; |
| import org.apache.falcon.service.FalconJPAService; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.Query; |
| import java.util.ArrayList; |
| import java.util.Date; |
| import java.util.List; |
| |
| /** |
| * Statestore for extension framework. |
| */ |
| public class ExtensionMetaStore { |
| |
| private static final String EXTENSION_NAME = "extensionName"; |
| private static final String JOB_NAME = "jobName"; |
| private static final String EXTENSION_TYPE = "extensionType"; |
| private static final String EXTENSION_STATUS = "extensionStatus"; |
| |
| private EntityManager getEntityManager() { |
| return FalconJPAService.get().getEntityManager(); |
| } |
| |
| public void storeExtensionBean(String extensionName, String location, ExtensionType extensionType, |
| String description, String extensionOwner) { |
| ExtensionBean extensionBean = new ExtensionBean(); |
| extensionBean.setLocation(location); |
| extensionBean.setExtensionName(extensionName); |
| extensionBean.setExtensionType(extensionType); |
| extensionBean.setCreationTime(new Date(System.currentTimeMillis())); |
| extensionBean.setDescription(description); |
| extensionBean.setExtensionOwner(extensionOwner); |
| extensionBean.setStatus(ExtensionStatus.ENABLED); |
| EntityManager entityManager = getEntityManager(); |
| try { |
| beginTransaction(entityManager); |
| entityManager.persist(extensionBean); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public Boolean checkIfExtensionExists(String extensionName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.GET_EXTENSION); |
| q.setParameter(EXTENSION_NAME, extensionName); |
| int resultSize = 0; |
| try { |
| resultSize = q.getResultList().size(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| return resultSize > 0; |
| } |
| |
| public Boolean checkIfExtensionJobExists(String jobName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.GET_EXTENSION_JOB); |
| q.setParameter(JOB_NAME, jobName); |
| int resultSize = 0; |
| try { |
| resultSize = q.getResultList().size(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| return resultSize > 0; |
| } |
| |
| public List<ExtensionBean> getAllExtensions() { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.GET_ALL_EXTENSIONS); |
| try { |
| return (List<ExtensionBean>) q.getResultList(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public void deleteExtensionsOfType(ExtensionType extensionType) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.DELETE_EXTENSIONS_OF_TYPE); |
| q.setParameter(EXTENSION_TYPE, extensionType); |
| try { |
| q.executeUpdate(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public ExtensionBean getDetail(String extensionName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.GET_EXTENSION); |
| q.setParameter(EXTENSION_NAME, extensionName); |
| try { |
| List resultList = q.getResultList(); |
| if (!resultList.isEmpty()) { |
| return (ExtensionBean) resultList.get(0); |
| } else { |
| return null; |
| } |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public List<ExtensionJobsBean> getJobsForAnExtension(String extensionName) { |
| List<ExtensionJobsBean> extensionJobs = new ArrayList<>(); |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query query = entityManager.createNamedQuery(PersistenceConstants.GET_JOBS_FOR_AN_EXTENSION); |
| query.setParameter(EXTENSION_NAME, extensionName); |
| try { |
| extensionJobs.addAll(query.getResultList()); |
| return extensionJobs; |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public void deleteExtension(String extensionName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.DELETE_EXTENSION); |
| q.setParameter(EXTENSION_NAME, extensionName); |
| try { |
| q.executeUpdate(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public void storeExtensionJob(String jobName, String extensionName, List<String> feeds, List<String> processes, |
| byte[] config) { |
| ExtensionMetaStore metaStore = ExtensionStore.getMetaStore(); |
| boolean alreadySubmitted = false; |
| if (metaStore.getExtensionJobDetails(jobName) != null) { |
| alreadySubmitted = true; |
| } |
| ExtensionJobsBean extensionJobsBean = new ExtensionJobsBean(); |
| Date currentTime = new Date(System.currentTimeMillis()); |
| extensionJobsBean.setJobName(jobName); |
| extensionJobsBean.setExtensionName(extensionName); |
| extensionJobsBean.setCreationTime(currentTime); |
| extensionJobsBean.setFeeds(feeds); |
| extensionJobsBean.setProcesses(processes); |
| extensionJobsBean.setConfig(config); |
| extensionJobsBean.setLastUpdatedTime(currentTime); |
| EntityManager entityManager = getEntityManager(); |
| try { |
| beginTransaction(entityManager); |
| if (alreadySubmitted) { |
| entityManager.merge(extensionJobsBean); |
| } else { |
| entityManager.persist(extensionJobsBean); |
| } |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public void deleteExtensionJob(String jobName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query query = entityManager.createNamedQuery(PersistenceConstants.DELETE_EXTENSION_JOB); |
| query.setParameter(JOB_NAME, jobName); |
| try { |
| query.executeUpdate(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public void updateExtensionJob(String jobName, String extensionName, List<String> feedNames, |
| List<String> processNames, byte[] configBytes) { |
| EntityManager entityManager = getEntityManager(); |
| ExtensionJobsBean extensionJobsBean = new ExtensionJobsBean(); |
| extensionJobsBean.setJobName(jobName); |
| extensionJobsBean.setExtensionName(extensionName); |
| extensionJobsBean.setFeeds(feedNames); |
| extensionJobsBean.setProcesses(processNames); |
| extensionJobsBean.setConfig(configBytes); |
| try { |
| beginTransaction(entityManager); |
| entityManager.merge(extensionJobsBean); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| public ExtensionJobsBean getExtensionJobDetails(String jobName) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query query = entityManager.createNamedQuery(PersistenceConstants.GET_EXTENSION_JOB); |
| query.setParameter(JOB_NAME, jobName); |
| List<ExtensionJobsBean> jobsBeanList; |
| try { |
| jobsBeanList = query.getResultList(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| if (jobsBeanList != null && !jobsBeanList.isEmpty()) { |
| return jobsBeanList.get(0); |
| } else { |
| return null; |
| } |
| } |
| |
| public List<ExtensionJobsBean> getAllExtensionJobs() { |
| List<ExtensionJobsBean> extensionJobs = new ArrayList<>(); |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.GET_ALL_EXTENSION_JOBS); |
| try { |
| extensionJobs.addAll(q.getResultList()); |
| return extensionJobs; |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| |
| |
| private void beginTransaction(EntityManager entityManager) { |
| entityManager.getTransaction().begin(); |
| } |
| |
| private void commitAndCloseTransaction(EntityManager entityManager) { |
| if (entityManager != null) { |
| entityManager.getTransaction().commit(); |
| entityManager.close(); |
| } |
| } |
| |
| public void updateExtensionStatus(String extensionName, ExtensionStatus status) { |
| EntityManager entityManager = getEntityManager(); |
| beginTransaction(entityManager); |
| Query q = entityManager.createNamedQuery(PersistenceConstants.CHANGE_EXTENSION_STATUS); |
| q.setParameter(EXTENSION_NAME, extensionName).setParameter(EXTENSION_STATUS, status); |
| try { |
| q.executeUpdate(); |
| } finally { |
| commitAndCloseTransaction(entityManager); |
| } |
| } |
| } |