| /* |
| * 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.brooklyn.policy.action; |
| |
| import java.util.Date; |
| |
| import org.apache.brooklyn.api.effector.Effector; |
| import org.apache.brooklyn.api.entity.EntityLocal; |
| import org.apache.brooklyn.api.policy.Policy; |
| import org.apache.brooklyn.api.sensor.AttributeSensor; |
| import org.apache.brooklyn.api.sensor.SensorEvent; |
| import org.apache.brooklyn.core.sensor.Sensors; |
| import org.apache.brooklyn.util.time.Duration; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.annotations.Beta; |
| import com.google.common.collect.ImmutableMap; |
| |
| /** |
| * A {@link Policy} the executes an {@link Effector} at a specific time in the future. |
| * <p> |
| * <pre>{@code |
| * brooklyn.policies: |
| * - type: org.apache.brooklyn.policy.action.ScheduledEffectorPolicy |
| * brooklyn.config: |
| * effector: update |
| * time: 12:00:00 |
| * }</pre> |
| */ |
| @Beta |
| public class ScheduledEffectorPolicy extends AbstractScheduledEffectorPolicy { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ScheduledEffectorPolicy.class); |
| |
| public static final AttributeSensor<Boolean> INVOKE_IMMEDIATELY = Sensors.newBooleanSensor("scheduler.invoke.now", "Invoke the configured effector immediately when this becomes true"); |
| public static final AttributeSensor<Date> INVOKE_AT = Sensors.newSensor(Date.class, "scheduler.invoke.at", "Invoke the configured effector at this time"); |
| |
| public ScheduledEffectorPolicy() { |
| super(); |
| } |
| |
| @Override |
| public void setEntity(final EntityLocal entity) { |
| super.setEntity(entity); |
| |
| subscriptions().subscribe(ImmutableMap.of("notifyOfInitialValue", true), entity, INVOKE_IMMEDIATELY, this); |
| subscriptions().subscribe(ImmutableMap.of("notifyOfInitialValue", true), entity, INVOKE_AT, this); |
| } |
| |
| @Override |
| public void start() { |
| String time = config().get(TIME); |
| Duration wait = config().get(WAIT); |
| |
| if (time != null) { |
| wait = getWaitUntil(time); |
| } |
| |
| if (wait != null) { |
| schedule(wait); |
| } |
| } |
| |
| @Override |
| public void onEvent(SensorEvent<Object> event) { |
| super.onEvent(event); |
| |
| if (running.get()) { |
| if (event.getSensor().getName().equals(INVOKE_AT.getName())) { |
| String time = (String) event.getValue(); |
| if (time != null) { |
| schedule(getWaitUntil(time)); |
| } |
| } |
| if (event.getSensor().getName().equals(INVOKE_IMMEDIATELY.getName())) { |
| Boolean invoke = Boolean.TRUE.equals(event.getValue()); |
| if (invoke) { |
| schedule(Duration.ZERO); |
| } |
| } |
| } |
| } |
| } |