/**
* 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.oozie.executor.jpa;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
import org.apache.oozie.sla.SLARegistrationBean;
/**
* Query Executor for SLA Event
*
*/
public class SLARegistrationQueryExecutor extends QueryExecutor<SLARegistrationBean, SLARegistrationQueryExecutor.SLARegQuery> {
public enum SLARegQuery {
UPDATE_SLA_REG_ALL,
GET_SLA_REG_ALL,
GET_SLA_REG_ON_RESTART
};
private static SLARegistrationQueryExecutor instance = new SLARegistrationQueryExecutor();
private SLARegistrationQueryExecutor() {
}
public static QueryExecutor<SLARegistrationBean, SLARegistrationQueryExecutor.SLARegQuery> getInstance() {
return SLARegistrationQueryExecutor.instance;
}
@Override
public Query getUpdateQuery(SLARegQuery namedQuery, SLARegistrationBean bean, EntityManager em)
throws JPAExecutorException {
Query query = em.createNamedQuery(namedQuery.name());
switch (namedQuery) {
case UPDATE_SLA_REG_ALL:
query.setParameter("jobId", bean.getId());
query.setParameter("nominalTime", bean.getNominalTimestamp());
query.setParameter("expectedStartTime", bean.getExpectedStartTimestamp());
query.setParameter("expectedEndTime", bean.getExpectedEndTimestamp());
query.setParameter("expectedDuration", bean.getExpectedDuration());
query.setParameter("slaConfig", bean.getSlaConfig());
query.setParameter("notificationMsg", bean.getNotificationMsg());
query.setParameter("upstreamApps", bean.getUpstreamApps());
query.setParameter("appType", bean.getAppType().toString());
query.setParameter("appName", bean.getAppName());
query.setParameter("user", bean.getUser());
query.setParameter("parentId", bean.getParentId());
query.setParameter("jobData", bean.getJobData());
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot set parameters for "
+ namedQuery.name());
}
return query;
}
@Override
public Query getSelectQuery(SLARegQuery namedQuery, EntityManager em, Object... parameters)
throws JPAExecutorException {
Query query = em.createNamedQuery(namedQuery.name());
switch (namedQuery) {
case GET_SLA_REG_ALL:
case GET_SLA_REG_ON_RESTART:
query.setParameter("id", parameters[0]);
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot set parameters for "
+ namedQuery.name());
}
return query;
}
@Override
public int executeUpdate(SLARegQuery namedQuery, SLARegistrationBean jobBean) throws JPAExecutorException {
JPAService jpaService = Services.get().get(JPAService.class);
EntityManager em = jpaService.getEntityManager();
Query query = getUpdateQuery(namedQuery, jobBean, em);
int ret = jpaService.executeUpdate(namedQuery.name(), query, em);
return ret;
}
@Override
public SLARegistrationBean get(SLARegQuery namedQuery, Object... parameters) throws JPAExecutorException {
JPAService jpaService = Services.get().get(JPAService.class);
EntityManager em = jpaService.getEntityManager();
Query query = getSelectQuery(namedQuery, em, parameters);
Object ret = jpaService.executeGet(namedQuery.name(), query, em);
if (ret == null && !namedQuery.equals(SLARegQuery.GET_SLA_REG_ALL)) {
throw new JPAExecutorException(ErrorCode.E0604, query.toString());
}
SLARegistrationBean bean = constructBean(namedQuery, ret, parameters);
return bean;
}
@Override
public List<SLARegistrationBean> getList(SLARegQuery namedQuery, Object... parameters) throws JPAExecutorException {
JPAService jpaService = Services.get().get(JPAService.class);
EntityManager em = jpaService.getEntityManager();
Query query = getSelectQuery(namedQuery, em, parameters);
@SuppressWarnings("unchecked")
List<SLARegistrationBean> beanList = (List<SLARegistrationBean>) jpaService.executeGetList(namedQuery.name(),
query, em);
return beanList;
}
private SLARegistrationBean constructBean(SLARegQuery namedQuery, Object ret, Object... parameters)
throws JPAExecutorException {
SLARegistrationBean bean;
Object[] arr;
switch (namedQuery) {
case GET_SLA_REG_ALL:
bean = (SLARegistrationBean) ret;
if(bean != null) {
bean.setSlaConfig(bean.getSlaConfig());
}
break;
case GET_SLA_REG_ON_RESTART:
bean = new SLARegistrationBean();
arr = (Object[]) ret;
bean.setNotificationMsg((String) arr[0]);
bean.setUpstreamApps((String) arr[1]);
bean.setSlaConfig((String) arr[2]);
bean.setJobData((String) arr[3]);
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot construct job bean for "
+ namedQuery.name());
}
return bean;
}
@Override
public Object getSingleValue(SLARegQuery namedQuery, Object... parameters) throws JPAExecutorException {
throw new UnsupportedOperationException();
}
}