2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021 Nordix Foundation.
4 * Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.clamp.controlloop.participant.intermediary.api;
24 import java.util.List;
26 import java.util.UUID;
27 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
28 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
29 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
30 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
31 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoops;
32 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
33 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantState;
34 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantStatistics;
35 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
36 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
39 * This interface is used by participant implementations to use the participant intermediary.
41 public interface ParticipantIntermediaryApi {
44 * Register a listener for control loop elements that are mediated by the intermediary.
46 * @param controlLoopElementListener The control loop element listener to register
48 void registerControlLoopElementListener(ControlLoopElementListener controlLoopElementListener);
51 * Get participants loops from the intermediary API.
53 * @param name the participant name, null for all
54 * @param version the participant version, null for all
55 * @return the participants
57 List<Participant> getParticipants(String name, String version);
60 * Update the state of a participant.
62 * @param definition the definition of the participant to update the state on
63 * @param state the state of the participant
64 * @return the participant
66 Participant updateParticipantState(ToscaConceptIdentifier definition, ParticipantState state);
69 * Update the statistics of a participant.
71 * @param participantStatistics the statistics of the participant
73 void updateParticipantStatistics(ParticipantStatistics participantStatistics);
76 * Get control loops from the intermediary API.
78 * @param name the control loop element name, null for all
79 * @param version the control loop element version, null for all
80 * @return the control loop elements
82 ControlLoops getControlLoops(String name, String version);
85 * Get control loop elements from the intermediary API.
87 * @param name the control loop element name, null for all
88 * @param version the control loop element version, null for all
89 * @return the control loop elements
91 Map<UUID, ControlLoopElement> getControlLoopElements(String name, String version);
94 * Get control loop element from the intermediary API.
96 * @param id control loop element ID
97 * @return the control loop element
99 ControlLoopElement getControlLoopElement(UUID id);
102 * Update the state of a control loop element.
104 * @param id the ID of the control loop element to update the state on
105 * @param currentState the state of the control loop element
106 * @param newState the state of the control loop element
107 * @return ControlLoopElement updated control loop element
109 ControlLoopElement updateControlLoopElementState(ToscaConceptIdentifier controlLoopId,
110 UUID id, ControlLoopOrderedState currentState,
111 ControlLoopState newState, ParticipantMessageType messageType);
114 * Update the control loop element statistics.
116 * @param id the ID of the control loop element to update the state on
117 * @param elementStatistics the updated statistics
119 void updateControlLoopElementStatistics(UUID id, ClElementStatistics elementStatistics);