blob: c60773e7164ceac5dc9e9fdf8fcb82cd7d8406bc [file] [log] [blame]
/*
* 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...");
}
}
}