| // |
| // 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 com.cloud.hypervisor.kvm.resource.wrapper; |
| |
| import com.cloud.agent.api.RollingMaintenanceAnswer; |
| import com.cloud.agent.api.RollingMaintenanceCommand; |
| import com.cloud.hypervisor.kvm.resource.LibvirtComputingResource; |
| import com.cloud.hypervisor.kvm.resource.rolling.maintenance.RollingMaintenanceAgentExecutor; |
| import com.cloud.hypervisor.kvm.resource.rolling.maintenance.RollingMaintenanceExecutor; |
| import com.cloud.resource.CommandWrapper; |
| import com.cloud.resource.ResourceWrapper; |
| import com.cloud.resource.RollingMaintenanceManager; |
| import com.cloud.utils.exception.CloudRuntimeException; |
| |
| import java.io.File; |
| |
| @ResourceWrapper(handles = RollingMaintenanceCommand.class) |
| public class LibvirtRollingMaintenanceCommandWrapper extends CommandWrapper<RollingMaintenanceCommand, RollingMaintenanceAnswer, LibvirtComputingResource> { |
| |
| |
| @Override |
| public RollingMaintenanceAnswer execute(RollingMaintenanceCommand command, LibvirtComputingResource resource) { |
| RollingMaintenanceExecutor executor = resource.getRollingMaintenanceExecutor(); |
| String stage = command.isCheckMaintenanceScript() ? RollingMaintenanceManager.Stage.Maintenance.toString() : command.getStage(); |
| int timeout = command.getWait(); |
| String payload = command.getPayload(); |
| |
| try { |
| File scriptFile = executor.getStageScriptFile(stage); |
| if (command.isCheckMaintenanceScript()) { |
| return new RollingMaintenanceAnswer(command, scriptFile != null); |
| } else if (scriptFile == null) { |
| logger.info("No script file defined for stage " + stage + ". Skipping stage..."); |
| return new RollingMaintenanceAnswer(command, true, "Skipped stage " + stage, true); |
| } |
| |
| if (command.isStarted() && executor instanceof RollingMaintenanceAgentExecutor) { |
| String msg = "Stage has been started previously and the agent restarted, setting stage as finished"; |
| logger.info(msg); |
| return new RollingMaintenanceAnswer(command, true, msg, true); |
| } |
| logger.info("Processing stage " + stage); |
| if (!command.isStarted()) { |
| executor.startStageExecution(stage, scriptFile, timeout, payload); |
| } |
| if (executor.isStageRunning(stage, scriptFile, payload)) { |
| return new RollingMaintenanceAnswer(command, true, "Stage " + stage + " still running", false); |
| } |
| boolean success = executor.getStageExecutionSuccess(stage, scriptFile); |
| String output = executor.getStageExecutionOutput(stage, scriptFile); |
| RollingMaintenanceAnswer answer = new RollingMaintenanceAnswer(command, success, output, true); |
| if (executor.getStageAvoidMaintenance(stage, scriptFile)) { |
| logger.info("Avoid maintenance flag added to the answer for the stage " + stage); |
| answer.setAvoidMaintenance(true); |
| } |
| logger.info("Finished processing stage " + stage); |
| return answer; |
| } catch (CloudRuntimeException e) { |
| return new RollingMaintenanceAnswer(command, false, e.getMessage(), false); |
| } |
| } |
| } |