/* * Copyright 2015-2016 Red Hat, Inc. and/or its affiliates * and other contributors as indicated by the @author tags. * * Licensed 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.hawkular.alerts.engine.util; import org.hawkular.alerts.api.model.event.Alert; import org.hawkular.alerts.api.model.event.Event; import org.hawkular.alerts.api.model.trigger.TriggerAction; import org.hawkular.alerts.engine.log.MsgLogger; import org.jboss.logging.Logger; /** * A Trigger can define a list of Actions that will be executed on Event/Alert generation. * A Trigger can optionally define constraints based on Alert's state and/or time intervals that indicates when an * action should be generated. * * This class is a helper to validate if an Event/Alert should be sent to the ActionsService based on the constraints * defined of a specific TriggerAction object. * * @author Jay Shaughnessy * @author Lucas Ponce */ public class ActionsValidator { private static final MsgLogger msgLog = MsgLogger.LOGGER; private static final Logger log = Logger.getLogger(ActionsValidator.class); /** * Validate if an Event should generate an Action based on the constraints defined on a TriggerAction. * * @param triggerAction a TriggerAction where status and time constraints are defined. * @param event a given Event to validate against a TriggerAction * @return true if the Event is validated and it should generated an action * false on the contrary */ public static boolean validate(TriggerAction triggerAction, Event event) { if (triggerAction == null || event == null) { return true; } if ((triggerAction.getStates() == null || triggerAction.getStates().isEmpty()) && triggerAction.getCalendar() == null) { return true; } if (event instanceof Alert && triggerAction.getStates() != null && !triggerAction.getStates().isEmpty() && !triggerAction.getStates().contains( ((Alert)event).getStatus().name()) ) { return false; } if (triggerAction.getCalendar() != null) { try { return triggerAction.getCalendar().isSatisfiedBy(event.getCtime()); } catch (Exception e) { log.debug(e.getMessage(), e); msgLog.errorCannotValidateAction(e.getMessage()); } } return true; } }