// 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 com.cloud.usage.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.Date;
import java.util.List;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.exception.UsageServerException;
import com.cloud.usage.UsageJobVO;
import com.cloud.utils.db.Filter;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.Transaction;
@Local(value={UsageJobDao.class})
public class UsageJobDaoImpl extends GenericDaoBase<UsageJobVO, Long> implements UsageJobDao {
private static final Logger s_logger = Logger.getLogger(UsageJobDaoImpl.class.getName());
private static final String GET_LAST_JOB_SUCCESS_DATE_MILLIS = "SELECT end_millis FROM cloud_usage.usage_job WHERE end_millis > 0 and success = 1 ORDER BY end_millis DESC LIMIT 1";
@Override
public long getLastJobSuccessDateMillis() {
Transaction txn = Transaction.currentTxn();
PreparedStatement pstmt = null;
String sql = GET_LAST_JOB_SUCCESS_DATE_MILLIS;
try {
pstmt = txn.prepareAutoCloseStatement(sql);
ResultSet rs = pstmt.executeQuery();
if (rs.next()) {
return rs.getLong(1);
}
} catch (Exception ex) {
s_logger.error("error getting last usage job success date", ex);
} finally {
txn.close();
}
return 0L;
}
@Override
public void updateJobSuccess(Long jobId, long startMillis, long endMillis, long execTime, boolean success) throws UsageServerException {
Transaction txn = Transaction.open(Transaction.USAGE_DB);
try {
txn.start();
UsageJobVO job = lockRow(jobId, Boolean.TRUE);
UsageJobVO jobForUpdate = createForUpdate();
jobForUpdate.setStartMillis(startMillis);
jobForUpdate.setEndMillis(endMillis);
jobForUpdate.setExecTime(execTime);
jobForUpdate.setStartDate(new Date(startMillis));
jobForUpdate.setEndDate(new Date(endMillis));
jobForUpdate.setSuccess(success);
update(job.getId(), jobForUpdate);
txn.commit();
} catch (Exception ex) {
txn.rollback();
s_logger.error("error updating job success date", ex);
throw new UsageServerException(ex.getMessage());
} finally {
txn.close();
}
}
@Override
public Long checkHeartbeat(String hostname, int pid, int aggregationDuration) {
UsageJobVO job = getNextRecurringJob();
if (job == null) {
return null;
}
if (job.getHost().equals(hostname) && (job.getPid() != null) && (job.getPid().intValue() == pid)) {
return job.getId();
}
Date lastHeartbeat = job.getHeartbeat();
if (lastHeartbeat == null) {
return null;
}
long sinceLastHeartbeat = System.currentTimeMillis() - lastHeartbeat.getTime();
// TODO: Make this check a little smarter..but in the mean time we want the mgmt
// server to monitor the usage server, we need to make sure other usage
// servers take over as the usage job owner more aggressively. For now
// this is hardcoded to 5 minutes.
if (sinceLastHeartbeat > (5 * 60 * 1000)) {
return job.getId();
}
return null;
}
@Override
public UsageJobVO isOwner(String hostname, int pid) {
Transaction txn = Transaction.open(Transaction.USAGE_DB);
try {
if ((hostname == null) || (pid <= 0)) {
return null;
}
UsageJobVO job = getLastJob();
if (job == null) {
return null;
}
if (hostname.equals(job.getHost()) && (job.getPid() != null) && (pid == job.getPid().intValue())) {
return job;
}
} finally {
txn.close();
}
return null;
}
@Override
public void createNewJob(String hostname, int pid, int jobType) {
UsageJobVO newJob = new UsageJobVO();
newJob.setHost(hostname);
newJob.setPid(pid);
newJob.setHeartbeat(new Date());
newJob.setJobType(jobType);
persist(newJob);
}
@Override
public UsageJobVO getLastJob() {
Filter filter = new Filter(UsageJobVO.class, "id", false, Long.valueOf(0), Long.valueOf(1));
SearchCriteria<UsageJobVO> sc = createSearchCriteria();
sc.addAnd("endMillis", SearchCriteria.Op.EQ, Long.valueOf(0));
List<UsageJobVO> jobs = search(sc, filter);
if ((jobs == null) || jobs.isEmpty()) {
return null;
}
return jobs.get(0);
}
private UsageJobVO getNextRecurringJob() {
Filter filter = new Filter(UsageJobVO.class, "id", false, Long.valueOf(0), Long.valueOf(1));
SearchCriteria<UsageJobVO> sc = createSearchCriteria();
sc.addAnd("endMillis", SearchCriteria.Op.EQ, Long.valueOf(0));
sc.addAnd("jobType", SearchCriteria.Op.EQ, Integer.valueOf(UsageJobVO.JOB_TYPE_RECURRING));
List<UsageJobVO> jobs = search(sc, filter);
if ((jobs == null) || jobs.isEmpty()) {
return null;
}
return jobs.get(0);
}
@Override
public UsageJobVO getNextImmediateJob() {
Filter filter = new Filter(UsageJobVO.class, "id", false, Long.valueOf(0), Long.valueOf(1));
SearchCriteria<UsageJobVO> sc = createSearchCriteria();
sc.addAnd("endMillis", SearchCriteria.Op.EQ, Long.valueOf(0));
sc.addAnd("jobType", SearchCriteria.Op.EQ, Integer.valueOf(UsageJobVO.JOB_TYPE_SINGLE));
sc.addAnd("scheduled", SearchCriteria.Op.EQ, Integer.valueOf(0));
List<UsageJobVO> jobs = search(sc, filter);
if ((jobs == null) || jobs.isEmpty()) {
return null;
}
return jobs.get(0);
}
@Override
public Date getLastHeartbeat() {
Filter filter = new Filter(UsageJobVO.class, "heartbeat", false, Long.valueOf(0), Long.valueOf(1));
SearchCriteria<UsageJobVO> sc = createSearchCriteria();
List<UsageJobVO> jobs = search(sc, filter);
if ((jobs == null) || jobs.isEmpty()) {
return null;
}
return jobs.get(0).getHeartbeat();
}
}