| /** |
| * 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.WorkflowActionBean; |
| import org.apache.oozie.util.ParamChecker; |
| import org.apache.oozie.util.XLog; |
| |
| /** |
| * Load the WorkflowAction into a Bean and return it. |
| */ |
| public class WorkflowActionGetJPAExecutor implements JPAExecutor<WorkflowActionBean> { |
| |
| public XLog LOG = XLog.getLog(getClass()); |
| |
| private String wfActionId = null; |
| private final boolean isNullAcceptable; |
| |
| public WorkflowActionGetJPAExecutor(String wfActionId) { |
| this(wfActionId, false); |
| } |
| |
| public WorkflowActionGetJPAExecutor(String wfActionId, boolean isNullAcceptable) { |
| ParamChecker.notNull(wfActionId, "wfActionId"); |
| this.wfActionId = wfActionId; |
| this.isNullAcceptable = isNullAcceptable; |
| } |
| |
| @Override |
| public String getName() { |
| return "WorkflowActionGetJPAExecutor"; |
| } |
| |
| @Override |
| @SuppressWarnings("unchecked") |
| public WorkflowActionBean execute(EntityManager em) throws JPAExecutorException { |
| List<WorkflowActionBean> waBeans; |
| try { |
| Query q = em.createNamedQuery("GET_ACTION"); |
| q.setParameter("id", wfActionId); |
| waBeans = q.getResultList(); |
| } |
| catch (Exception e) { |
| throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); |
| } |
| WorkflowActionBean bean = null; |
| if (waBeans != null && waBeans.size() > 0) { |
| bean = waBeans.get(0); |
| return bean; |
| } |
| else { |
| if (isNullAcceptable) { |
| LOG.warn("Could not get workflow action {0}", wfActionId); |
| return null; |
| } |
| else { |
| throw new JPAExecutorException(ErrorCode.E0605, wfActionId); |
| } |
| } |
| } |
| } |