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.List;
25 import java.util.UUID;
26 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ClElementStatistics;
27 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
28 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
29 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
30 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoops;
31 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.Participant;
32 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantState;
33 import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ParticipantStatistics;
34 import org.onap.policy.clamp.controlloop.models.messages.dmaap.participant.ParticipantMessageType;
35 import org.onap.policy.models.tosca.authorative.concepts.ToscaConceptIdentifier;
36 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
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 * Send participant register message to controlloop runtime.
53 void sendParticipantRegister();
56 * Send participant deregister message to controlloop runtime.
58 void sendParticipantDeregister();
61 * Get participants loops from the intermediary API.
63 * @param name the participant name, null for all
64 * @param version the participant version, null for all
65 * @return the participants
67 List<Participant> getParticipants(String name, String version);
70 * Update the state of a participant.
72 * @param definition the definition of the participant to update the state on
73 * @param state the state of the participant
74 * @return the participant
76 Participant updateParticipantState(ToscaConceptIdentifier definition, ParticipantState state);
79 * Update the statistics of a participant.
81 * @param participantStatistics the statistics of the participant
83 void updateParticipantStatistics(ParticipantStatistics participantStatistics);
86 * Get control loops from the intermediary API.
88 * @param name the control loop element name, null for all
89 * @param version the control loop element version, null for all
90 * @return the control loop elements
92 ControlLoops getControlLoops(String name, String version);
95 * Get control loop elements from the intermediary API.
97 * @param name the control loop element name, null for all
98 * @param version the control loop element version, null for all
99 * @return the control loop elements
101 Map<UUID, ControlLoopElement> getControlLoopElements(String name, String version);
104 * Get control loop element from the intermediary API.
106 * @param id control loop element ID
107 * @return the control loop element
109 ControlLoopElement getControlLoopElement(UUID id);
112 * Update the state of a control loop element.
114 * @param id the ID of the control loop element to update the state on
115 * @param currentState the state of the control loop element
116 * @param newState the state of the control loop element
117 * @return ControlLoopElement updated control loop element
119 ControlLoopElement updateControlLoopElementState(UUID id, ControlLoopOrderedState currentState,
120 ControlLoopState newState, ParticipantMessageType messageType);
123 * Update the control loop element statistics.
125 * @param id the ID of the control loop element to update the state on
126 * @param elementStatistics the updated statistics
128 void updateControlLoopElementStatistics(UUID id, ClElementStatistics elementStatistics);