Github user drigodwin commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/822#discussion_r138886618
--- Diff:
policy/src/main/java/org/apache/brooklyn/policy/action/PeriodicEffectorPolicy.java
---
@@ -0,0 +1,151 @@
+/*
+ * 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.Map;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+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.api.sensor.SensorEventListener;
+import org.apache.brooklyn.config.ConfigKey;
+import org.apache.brooklyn.core.config.ConfigKeys;
+import org.apache.brooklyn.core.entity.trait.Startable;
+import org.apache.brooklyn.core.sensor.Sensors;
+import org.apache.brooklyn.util.collections.MutableMap;
+import org.apache.brooklyn.util.time.Duration;
+import org.apache.brooklyn.util.time.DurationPredicates;
+import org.apache.brooklyn.util.time.Time;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Preconditions;
+import com.google.common.reflect.TypeToken;
+
+/**
+ * A {@link Policy} that executes an {@link Effector} at specific
intervals.
+ * <p>
+ * The following example shows a pair of policies that resize a cluster
+ * from one to ten entities during the day and back to one at night,:
+ * <pre>{@code
+ * brooklyn.policies:
+ * - type: org.apache.brooklyn.policy.action.ScheduledEffectorPolicy
+ * brooklyn.config:
+ * effector: resize
+ * args:
+ * desiredSize: 10
+ * period: 1 day
+ * time: 08:00:00
+ * - type: org.apache.brooklyn.policy.action.ScheduledEffectorPolicy
+ * brooklyn.config:
+ * effector: resize
+ * args:
+ * desiredSize: 1
+ * period: 1 day
+ * time: 18:00:00
+ * }</pre>
--- End diff --
This example is for the `ScheduledEffectorPolicy` not the
`PeriodicEffectorPolicy`
---
