| /** |
| * 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.command.wf; |
| |
| import java.util.Properties; |
| |
| import org.apache.oozie.ErrorCode; |
| import org.apache.oozie.WorkflowActionBean; |
| import org.apache.oozie.action.ActionExecutor; |
| import org.apache.oozie.command.CommandException; |
| import org.apache.oozie.command.PreconditionException; |
| import org.apache.oozie.executor.jpa.WorkflowActionQueryExecutor; |
| import org.apache.oozie.executor.jpa.WorkflowActionQueryExecutor.WorkflowActionQuery; |
| import org.apache.oozie.service.ActionService; |
| import org.apache.oozie.service.CallbackService; |
| import org.apache.oozie.service.Services; |
| import org.apache.oozie.util.LogUtils; |
| import org.apache.oozie.util.ParamChecker; |
| |
| /** |
| * This command is executed once the Workflow command is finished. |
| */ |
| public class CompletedActionXCommand extends WorkflowXCommand<Void> { |
| private final String actionId; |
| private final String externalStatus; |
| private WorkflowActionBean wfactionBean; |
| private int earlyRequeueCount; |
| |
| public CompletedActionXCommand(String actionId, String externalStatus, Properties actionData, int priority, |
| int earlyRequeueCount) { |
| super("callback", "callback", priority); |
| this.actionId = ParamChecker.notEmpty(actionId, "actionId"); |
| this.externalStatus = ParamChecker.notEmpty(externalStatus, "externalStatus"); |
| this.earlyRequeueCount = earlyRequeueCount; |
| } |
| |
| public CompletedActionXCommand(String actionId, String externalStatus, Properties actionData, int priority) { |
| this(actionId, externalStatus, actionData, priority, 0); |
| } |
| |
| public CompletedActionXCommand(String actionId, String externalStatus, Properties actionData) { |
| this(actionId, externalStatus, actionData, 1); |
| } |
| |
| @Override |
| protected void setLogInfo() { |
| LogUtils.setLogInfo(actionId); |
| } |
| |
| @Override |
| protected void eagerLoadState() throws CommandException { |
| try { |
| this.wfactionBean = WorkflowActionQueryExecutor.getInstance().get(WorkflowActionQuery.GET_ACTION_COMPLETED, |
| this.actionId); |
| } |
| catch (Exception ex) { |
| throw new CommandException(ErrorCode.E0603, ex.getMessage(), ex); |
| } |
| LogUtils.setLogInfo(this.wfactionBean); |
| } |
| |
| @Override |
| protected void eagerVerifyPrecondition() throws CommandException, PreconditionException { |
| if (this.wfactionBean.getStatus() != WorkflowActionBean.Status.RUNNING |
| && this.wfactionBean.getStatus() != WorkflowActionBean.Status.PREP) { |
| throw new CommandException(ErrorCode.E0800, actionId, this.wfactionBean.getStatus()); |
| } |
| } |
| |
| @Override |
| protected Void execute() throws CommandException { |
| // If the action is still in PREP, we probably received a callback before Oozie was able to update from PREP to RUNNING; |
| // we'll requeue this command a few times and hope that it switches to RUNNING before giving up |
| if (this.wfactionBean.getStatus() == WorkflowActionBean.Status.PREP) { |
| int maxEarlyRequeueCount = Services.get().get(CallbackService.class).getEarlyRequeueMaxRetries(); |
| if (this.earlyRequeueCount < maxEarlyRequeueCount) { |
| long delay = getRequeueDelay(); |
| LOG.warn("Received early callback for action still in PREP state; will wait [{0}]ms and requeue up to [{1}] more" |
| + " times", delay, (maxEarlyRequeueCount - earlyRequeueCount)); |
| queue(new CompletedActionXCommand(this.actionId, this.externalStatus, null, this.getPriority(), |
| this.earlyRequeueCount + 1), delay); |
| } else { |
| throw new CommandException(ErrorCode.E0822, actionId); |
| } |
| } else { // RUNNING |
| ActionExecutor executor = Services.get().get(ActionService.class).getExecutor(this.wfactionBean.getType()); |
| // this is done because oozie notifications (of sub-wfs) is send |
| // every status change, not only on completion. |
| if (executor.isCompleted(externalStatus)) { |
| queue(new ActionCheckXCommand(this.wfactionBean.getId(), getPriority(), -1)); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getEntityKey() { |
| return null; |
| } |
| |
| @Override |
| protected boolean isLockRequired() { |
| return false; |
| } |
| |
| @Override |
| protected void loadState() throws CommandException { |
| eagerLoadState(); |
| } |
| |
| @Override |
| protected void verifyPrecondition() throws CommandException, PreconditionException { |
| eagerVerifyPrecondition(); |
| } |
| } |