/**
 * 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 java.util.Objects;

import javax.persistence.EntityManager;
import javax.persistence.Query;

import org.apache.oozie.CoordinatorJobBean;
import org.apache.oozie.ErrorCode;

/**
 * Load the coordinators for specified bundle in the Coordinator job bean
 */
public class BundleJobGetCoordinatorsJPAExecutor implements JPAExecutor<List<CoordinatorJobBean>> {
    private String bundleId = null;

    public BundleJobGetCoordinatorsJPAExecutor(String bundleId) {
        this.bundleId = Objects.requireNonNull(bundleId, "bundleId cannot be null");
    }

    @Override
    public String getName() {
        return "BundleJobGetCoordinatorsJPAExecutor";
    }

    @Override
    @SuppressWarnings("unchecked")
    public List<CoordinatorJobBean> execute(EntityManager em) throws JPAExecutorException {
        List<CoordinatorJobBean> coordJobBeans;
        try {
            Query q = em.createNamedQuery("GET_COORD_JOBS_FOR_BUNDLE");
            q.setParameter("bundleId", bundleId);
            coordJobBeans = q.getResultList();

            for (CoordinatorJobBean cjBean : coordJobBeans) {
                cjBean.setStatus(cjBean.getStatus());
                cjBean.setTimeUnit(cjBean.getTimeUnit());
                cjBean.setStartTimestamp(cjBean.getStartTimestamp());
                cjBean.setEndTimestamp(cjBean.getEndTimestamp());
                cjBean.setNextMaterializedTimestamp(cjBean.getNextMaterializedTimestamp());
            }

            return coordJobBeans;
        }
        catch (Exception e) {
            throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
        }
    }
}