| /* |
| * 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.ranger.service; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.beans.factory.annotation.Qualifier; |
| import org.springframework.stereotype.Service; |
| import org.springframework.transaction.PlatformTransactionManager; |
| import org.springframework.transaction.TransactionDefinition; |
| import org.springframework.transaction.TransactionStatus; |
| import org.springframework.transaction.support.TransactionCallback; |
| import org.springframework.transaction.support.TransactionTemplate; |
| |
| import javax.annotation.PostConstruct; |
| import javax.annotation.PreDestroy; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| |
| @Service |
| public class RangerTransactionService { |
| @Autowired |
| @Qualifier(value = "transactionManager") |
| PlatformTransactionManager txManager; |
| |
| private static final Log LOG = LogFactory.getLog(RangerTransactionService.class); |
| |
| private ScheduledExecutorService scheduler = null; |
| |
| @PostConstruct |
| public void init() { |
| scheduler = Executors.newScheduledThreadPool(1); |
| } |
| |
| @PreDestroy |
| public void destroy() { |
| try { |
| LOG.info("attempt to shutdown RangerTransactionService"); |
| scheduler.shutdown(); |
| scheduler.awaitTermination(5, TimeUnit.SECONDS); |
| } |
| catch (InterruptedException e) { |
| LOG.error("RangerTransactionService tasks interrupted"); |
| } |
| finally { |
| if (!scheduler.isTerminated()) { |
| LOG.info("cancel non-finished RangerTransactionService tasks"); |
| } |
| scheduler.shutdownNow(); |
| LOG.info("RangerTransactionService shutdown finished"); |
| } |
| } |
| |
| public void executeAfterTransactionComplete(final Runnable task) { |
| try { |
| scheduler.schedule(new Runnable() { |
| @Override |
| public void run() { |
| if (task != null) { |
| try { |
| //Create new transaction |
| TransactionTemplate txTemplate = new TransactionTemplate(txManager); |
| txTemplate.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRES_NEW); |
| |
| txTemplate.execute(new TransactionCallback<Object>() { |
| public Object doInTransaction(TransactionStatus status) { |
| task.run(); |
| return null; |
| } |
| }); |
| } catch (Exception e) { |
| LOG.error("Failed to commit TransactionService transaction", e); |
| LOG.error("Ignoring..."); |
| } |
| } |
| } |
| }, 1000L, MILLISECONDS); |
| } catch (Exception e) { |
| LOG.error("Failed to schedule TransactionService transaction:", e); |
| LOG.error("Ignroing..."); |
| } |
| } |
| |
| } |