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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation.
* Modifications Copyright (C) 2021 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.clamp.acm.participant.intermediary.comm;
import java.util.function.Consumer;
import org.onap.policy.clamp.acm.participant.intermediary.handler.Listener;
import org.onap.policy.clamp.acm.participant.intermediary.handler.ParticipantHandler;
import org.onap.policy.clamp.models.acm.messages.dmaap.participant.ParticipantMessage;
import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
import org.onap.policy.common.endpoints.listeners.ScoListener;
import org.onap.policy.common.utils.coder.StandardCoderObject;
/**
* Abstract Listener for Participant messages sent by CLAMP.
*/
public abstract class ParticipantListener<T extends ParticipantMessage> extends ScoListener<T> implements Listener<T> {
private final ParticipantHandler participantHandler;
private final Consumer<T> consumer;
/**
* Constructs the object.
*
* @param clazz class of message this handles
* @param participantHandler ParticipantHandler
* @param consumer function that handles the message
*/
protected ParticipantListener(Class<T> clazz, ParticipantHandler participantHandler, Consumer<T> consumer) {
super(clazz);
this.participantHandler = participantHandler;
this.consumer = consumer;
}
@Override
public void onTopicEvent(CommInfrastructure infra, String topic, StandardCoderObject sco, T message) {
if (participantHandler.appliesTo(message)) {
consumer.accept(message);
}
}
@Override
public ScoListener<T> getScoListener() {
return this;
}
}
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