2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2021,2024 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.acm.participant.intermediary.comm;
24 import java.util.function.Consumer;
25 import org.onap.policy.clamp.acm.participant.intermediary.handler.Listener;
26 import org.onap.policy.clamp.acm.participant.intermediary.handler.ParticipantHandler;
27 import org.onap.policy.clamp.models.acm.messages.kafka.participant.ParticipantMessage;
28 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
29 import org.onap.policy.common.endpoints.listeners.ScoListener;
30 import org.onap.policy.common.utils.coder.StandardCoderObject;
33 * Abstract Listener for Participant messages sent by CLAMP.
35 public abstract class ParticipantListener<T extends ParticipantMessage> extends ScoListener<T> implements Listener<T> {
37 private final ParticipantHandler participantHandler;
38 private final Consumer<T> consumer;
41 * Constructs the object.
43 * @param clazz class of message this handles
44 * @param participantHandler ParticipantHandler
45 * @param consumer function that handles the message
47 protected ParticipantListener(Class<T> clazz, ParticipantHandler participantHandler, Consumer<T> consumer) {
49 this.participantHandler = participantHandler;
50 this.consumer = consumer;
54 public void onTopicEvent(CommInfrastructure infra, String topic, StandardCoderObject sco, T message) {
55 if (participantHandler.appliesTo(message)) {
56 consumer.accept(message);
61 public ScoListener<T> getScoListener() {
66 public boolean isDefaultTopic() {