2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.clamp.controlloop.participant.intermediary.api;
23 import java.util.UUID;
24 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
25 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
26 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
27 import org.onap.policy.models.base.PfModelException;
28 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
29 import org.onap.policy.models.tosca.authorative.concepts.ToscaNodeTemplate;
32 * This interface is implemented by participant implementations to receive updates on control loop elements.
34 public interface ControlLoopElementListener {
36 * Handle a control loop element state change.
38 * @param controlLoopElementId the ID of the control loop element
39 * @param currentState the current state of the control loop element
40 * @param newState the state to which the control loop element is changing to
41 * @throws PfModelException in case of a model exception
43 public void controlLoopElementStateChange(ToscaConceptIdentifier controlLoopId, UUID controlLoopElementId,
44 ControlLoopState currentState, ControlLoopOrderedState newState) throws PfModelException;
47 * Handle an update on a control loop element.
49 * @param element the information on the control loop element
50 * @param controlLoopElementDefinition toscaNodeTemplate
51 * @throws PfModelException from Policy framework
53 public void controlLoopElementUpdate(ToscaConceptIdentifier controlLoopId, ControlLoopElement element,
54 ToscaNodeTemplate controlLoopElementDefinition) throws PfModelException;
57 * Handle controlLoopElement statistics.
59 * @param controlLoopElementId controlLoopElement id
60 * @throws PfModelException in case of a model exception
62 public void handleStatistics(UUID controlLoopElementId) throws PfModelException;