2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.openecomp.appc.metricservice.policy;
24 import org.openecomp.appc.exceptions.APPCException;
25 import org.openecomp.appc.metricservice.metric.Metric;
29 * A custom logic that determines strategy of exposing metric values.
30 * Policy is associated with a specific registry and its implementation can very from the simplest options, such as 'real-time' behavior (upon each value change) to more sophisticated approaches such as thresholds or recurrent scheduling rules.
31 * The policy can also decide whether or not to publish the entire metric registry or just a subset of the it (e.g. changed ones).
32 * Policy supports execution of one or more Publishers.
35 public interface PublishingPolicy {
36 void onMetricChange(Metric meric) throws APPCException;