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*
* 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.
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*/
package org.apache.airavata.gfac.gram.persistence;
import org.apache.airavata.common.utils.DBUtil;
import org.apache.airavata.gfac.GFacException;
import org.apache.airavata.gfac.core.persistence.JobData;
import org.apache.airavata.gfac.core.persistence.JobPersistenceManager;
import org.apache.log4j.Logger;
import org.globus.gram.internal.GRAMConstants;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
/**
* User: AmilaJ (amilaj@apache.org)
* Date: 6/18/13
* Time: 4:16 PM
* Database based job persistence manager. Current default implementation.
*/
public class DBJobPersistenceManager implements JobPersistenceManager {
private DBUtil dbUtil;
private static final Logger log = Logger.getLogger(DBJobPersistenceManager.class);
public DBJobPersistenceManager(DBUtil db) {
this.dbUtil = db;
}
public synchronized void updateJobStatus(JobData jobData) throws GFacException {
if (jobData.getState() == GRAMConstants.STATUS_UNSUBMITTED) {
insertJob(jobData);
} else {
String sql = "update gram_job set status = ? where job_id = ?";
Connection connection = null;
PreparedStatement stmt = null;
try {
connection = getConnection();
stmt = connection.prepareStatement(sql);
stmt.setInt(1, jobData.getState());
stmt.setString(2, jobData.getJobId());
stmt.executeUpdate();
connection.commit();
} catch (SQLException e) {
throw new GFacException(e);
} finally {
try {
if (stmt != null) {
stmt.close();
}
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
log.error("Error closing streams", e);
}
}
}
}
private void insertJob(JobData jobData) throws GFacException {
String sql = "insert into gram_job values (?, ?)";
PreparedStatement stmt = null;
Connection connection = null;
try {
connection = getConnection();
stmt = connection.prepareStatement(sql);
stmt.setString(1, jobData.getJobId());
stmt.setInt(2, jobData.getState());
stmt.executeUpdate();
} catch (SQLException e) {
throw new GFacException(e);
} finally {
try {
if (stmt != null) {
stmt.close();
}
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
log.error("Error closing streams", e);
}
}
}
public List<JobData> getRunningJobs() throws GFacException {
String sql = "select * from gram_job where status not in (?, ?, ?)";
int[] statuses = new int[3];
statuses[0] = GRAMConstants.STATUS_UNSUBMITTED;
statuses[1] = GRAMConstants.STATUS_DONE;
statuses[2] = GRAMConstants.STATUS_FAILED;
return getJobs(sql, statuses);
}
public List<JobData> getFailedJobs() throws GFacException {
String sql = "select * from gram_job where status in (?)";
int[] statuses = new int[1];
statuses[0] = GRAMConstants.STATUS_FAILED;
return getJobs(sql, statuses);
}
public List<JobData> getUnSubmittedJobs() throws GFacException {
String sql = "select * from gram_job where status in (?)";
int[] statuses = new int[1];
statuses[0] = GRAMConstants.STATUS_UNSUBMITTED;
return getJobs(sql, statuses);
}
public List<JobData> getSuccessfullyCompletedJobs() throws GFacException {
String sql = "select * from gram_job where status in (?)";
int[] statuses = new int[1];
statuses[0] = GRAMConstants.STATUS_DONE;
return getJobs(sql, statuses);
}
protected List<JobData> getJobs(String sql, int[] statuses) throws GFacException {
List<JobData> jobs = new ArrayList<JobData>();
PreparedStatement preparedStatement = null;
Connection connection = null;
try {
connection = getConnection();
preparedStatement = connection.prepareStatement(sql);
int index = 1;
for (int status : statuses) {
preparedStatement.setInt(index, status);
++index;
}
ResultSet resultSet = preparedStatement.executeQuery();
while (resultSet.next()) {
String jobId = resultSet.getString("job_id");
int state = resultSet.getInt("status");
jobs.add(new JobData(jobId, state));
}
} catch (SQLException e) {
throw new GFacException(e);
} finally {
try {
if (preparedStatement != null) {
preparedStatement.close();
}
if (connection != null) {
connection.close();
}
} catch (SQLException e) {
log.error("Error closing connection", e);
}
}
return jobs;
}
private synchronized Connection getConnection() throws SQLException {
Connection connection = dbUtil.getConnection();
connection.setAutoCommit(true);
return connection;
}
}