/**
* 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.sql.Timestamp;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.apache.oozie.BundleActionBean;
import org.apache.oozie.ErrorCode;
import org.apache.oozie.service.JPAService;
import org.apache.oozie.service.Services;
/**
* Query Executor that provides API to run query for Bundle Action
*/
public class BundleActionQueryExecutor extends
QueryExecutor<BundleActionBean, BundleActionQueryExecutor.BundleActionQuery> {
public enum BundleActionQuery {
UPDATE_BUNDLE_ACTION_PENDING_MODTIME,
UPDATE_BUNDLE_ACTION_STATUS_PENDING_MODTIME,
UPDATE_BUNDLE_ACTION_STATUS_PENDING_MODTIME_COORDID,
GET_BUNDLE_ACTION,
GET_BUNDLE_ACTIONS_STATUS_UNIGNORED_FOR_BUNDLE,
GET_BUNDLE_WAITING_ACTIONS_OLDER_THAN,
GET_BUNDLE_UNIGNORED_ACTION_STATUS_PENDING_FOR_BUNDLE
};
private static BundleActionQueryExecutor instance = new BundleActionQueryExecutor();
private BundleActionQueryExecutor() {
}
public static QueryExecutor<BundleActionBean, BundleActionQueryExecutor.BundleActionQuery> getInstance() {
return BundleActionQueryExecutor.instance;
}
@Override
public Query getUpdateQuery(BundleActionQuery namedQuery, BundleActionBean baBean, EntityManager em)
throws JPAExecutorException {
Query query = em.createNamedQuery(namedQuery.name());
switch (namedQuery) {
case UPDATE_BUNDLE_ACTION_PENDING_MODTIME:
query.setParameter("lastModifiedTime", baBean.getLastModifiedTimestamp());
query.setParameter("pending", baBean.getPending());
query.setParameter("bundleActionId", baBean.getBundleActionId());
break;
case UPDATE_BUNDLE_ACTION_STATUS_PENDING_MODTIME:
query.setParameter("status", baBean.getStatusStr());
query.setParameter("lastModifiedTime", baBean.getLastModifiedTimestamp());
query.setParameter("pending", baBean.getPending());
query.setParameter("bundleActionId", baBean.getBundleActionId());
break;
case UPDATE_BUNDLE_ACTION_STATUS_PENDING_MODTIME_COORDID:
query.setParameter("status", baBean.getStatusStr());
query.setParameter("lastModifiedTime", baBean.getLastModifiedTimestamp());
query.setParameter("pending", baBean.getPending());
query.setParameter("coordId", baBean.getCoordId());
query.setParameter("bundleActionId", baBean.getBundleActionId());
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot set parameters for "
+ namedQuery.name());
}
return query;
}
@Override
public Query getSelectQuery(BundleActionQuery namedQuery, EntityManager em, Object... parameters)
throws JPAExecutorException {
Query query = em.createNamedQuery(namedQuery.name());
switch (namedQuery) {
case GET_BUNDLE_ACTION:
query.setParameter("bundleActionId", parameters[0]);
break;
case GET_BUNDLE_ACTIONS_STATUS_UNIGNORED_FOR_BUNDLE:
query.setParameter("bundleId", parameters[0]);
break;
case GET_BUNDLE_WAITING_ACTIONS_OLDER_THAN:
Timestamp ts = new Timestamp(System.currentTimeMillis() - (Long)parameters[0] * 1000);
query.setParameter("lastModifiedTime", ts);
break;
case GET_BUNDLE_UNIGNORED_ACTION_STATUS_PENDING_FOR_BUNDLE:
query.setParameter("bundleId", parameters[0]);
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot set parameters for "
+ namedQuery.name());
}
return query;
}
@Override
public int executeUpdate(BundleActionQuery namedQuery, BundleActionBean 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 BundleActionBean get(BundleActionQuery 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) {
throw new JPAExecutorException(ErrorCode.E0604, query.toString());
}
BundleActionBean bean = constructBean(namedQuery, ret);
return bean;
}
private BundleActionBean constructBean(BundleActionQuery namedQuery, Object ret) throws JPAExecutorException {
BundleActionBean bean;
Object[] arr;
switch (namedQuery) {
case GET_BUNDLE_ACTION:
case GET_BUNDLE_ACTIONS_STATUS_UNIGNORED_FOR_BUNDLE:
bean = (BundleActionBean) ret;
break;
case GET_BUNDLE_WAITING_ACTIONS_OLDER_THAN:
bean = new BundleActionBean();
arr = (Object[]) ret;
bean.setBundleActionId((String) arr[0]);
bean.setBundleId((String) arr[1]);
bean.setStatusStr((String) arr[2]);
bean.setCoordId((String) arr[3]);
bean.setCoordName((String) arr[4]);
break;
case GET_BUNDLE_UNIGNORED_ACTION_STATUS_PENDING_FOR_BUNDLE:
bean = new BundleActionBean();
arr = (Object[]) ret;
bean.setCoordId((String) arr[0]);
bean.setStatusStr((String) arr[1]);
bean.setPending((Integer) arr[2]);
break;
default:
throw new JPAExecutorException(ErrorCode.E0603, "QueryExecutor cannot construct action bean for "
+ namedQuery.name());
}
return bean;
}
@Override
public List<BundleActionBean> getList(BundleActionQuery namedQuery, Object... parameters)
throws JPAExecutorException {
JPAService jpaService = Services.get().get(JPAService.class);
EntityManager em = jpaService.getEntityManager();
Query query = getSelectQuery(namedQuery, em, parameters);
List<?> retList = (List<?>) jpaService.executeGetList(namedQuery.name(), query, em);
List<BundleActionBean> beanList = new ArrayList<BundleActionBean>();
if (retList != null) {
for (Object ret : retList) {
beanList.add(constructBean(namedQuery, ret));
}
}
return beanList;
}
@Override
public Object getSingleValue(BundleActionQuery namedQuery, Object... parameters) throws JPAExecutorException {
throw new UnsupportedOperationException();
}
}