| /* |
| * 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.nifi.audit; |
| |
| import org.apache.nifi.action.Action; |
| import org.apache.nifi.action.Component; |
| import org.apache.nifi.action.FlowChangeAction; |
| import org.apache.nifi.action.Operation; |
| import org.apache.nifi.action.details.FlowChangeConfigureDetails; |
| import org.apache.nifi.authorization.user.NiFiUser; |
| import org.apache.nifi.authorization.user.NiFiUserUtils; |
| import org.apache.nifi.web.controller.ControllerFacade; |
| import org.aspectj.lang.ProceedingJoinPoint; |
| import org.aspectj.lang.annotation.Around; |
| import org.aspectj.lang.annotation.Aspect; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Date; |
| |
| /** |
| * Audits configuration changes to the controller. |
| */ |
| @Aspect |
| public class ControllerAuditor extends NiFiAuditor { |
| |
| private static final Logger logger = LoggerFactory.getLogger(ControllerAuditor.class); |
| |
| /** |
| * Audits updating the max number of timer driven threads for the controller. |
| * |
| * @param proceedingJoinPoint joint point |
| * @param maxTimerDrivenThreadCount thread count |
| * @param controllerFacade facade |
| * @throws java.lang.Throwable ex |
| */ |
| @Around("within(org.apache.nifi.web.controller.ControllerFacade) && " |
| + "execution(void setMaxTimerDrivenThreadCount(int)) && " |
| + "args(maxTimerDrivenThreadCount) && " |
| + "target(controllerFacade)") |
| public void updateControllerTimerDrivenThreadsAdvice(ProceedingJoinPoint proceedingJoinPoint, int maxTimerDrivenThreadCount, ControllerFacade controllerFacade) throws Throwable { |
| // get the current max thread count |
| int previousMaxTimerDrivenThreadCount = controllerFacade.getMaxTimerDrivenThreadCount(); |
| |
| // update the processors state |
| proceedingJoinPoint.proceed(); |
| |
| // if no exception were thrown, add the configuration action... |
| // ensure the value changed |
| if (previousMaxTimerDrivenThreadCount != maxTimerDrivenThreadCount) { |
| // get the current user |
| NiFiUser user = NiFiUserUtils.getNiFiUser(); |
| |
| // ensure the user was found |
| if (user != null) { |
| Collection<Action> actions = new ArrayList<>(); |
| |
| // create the configure details |
| FlowChangeConfigureDetails configDetails = new FlowChangeConfigureDetails(); |
| configDetails.setName("Controller Max Timer Driven Thread Count"); |
| configDetails.setValue(String.valueOf(maxTimerDrivenThreadCount)); |
| configDetails.setPreviousValue(String.valueOf(previousMaxTimerDrivenThreadCount)); |
| |
| // create the config action |
| FlowChangeAction configAction = new FlowChangeAction(); |
| configAction.setUserIdentity(user.getIdentity()); |
| configAction.setOperation(Operation.Configure); |
| configAction.setTimestamp(new Date()); |
| configAction.setSourceId("Flow Controller"); |
| configAction.setSourceName("Flow Controller"); |
| configAction.setSourceType(Component.Controller); |
| configAction.setActionDetails(configDetails); |
| actions.add(configAction); |
| |
| // record the action |
| saveActions(actions, logger); |
| } |
| } |
| } |
| |
| } |