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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation.
* ================================================================================
* 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.controlloop.participant.intermediary.api;
import java.util.UUID;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopElement;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopOrderedState;
import org.onap.policy.clamp.controlloop.models.controlloop.concepts.ControlLoopState;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
/**
* This interface is implemented by participant implementations to receive updates on control loop elements.
*/
public interface ControlLoopElementListener {
/**
* Handle a control loop element state change.
*
* @param controlLoopElementId the ID of the control loop element
* @param currentState the current state of the control loop element
* @param newState the state to which the control loop element is changing to
* @throws PfModelException in case of a model exception
*/
public void controlLoopElementStateChange(UUID controlLoopElementId, ControlLoopState currentState,
ControlLoopOrderedState newState) throws PfModelException;
/**
* Handle an update on a control loop element.
*
* @param element the information on the control loop element
* @param controlLoopDefinition toscaServiceTemplate
* @throws PfModelException from Policy framework
*/
public void controlLoopElementUpdate(ControlLoopElement element,
ToscaServiceTemplate controlLoopDefinition) throws PfModelException;
/**
* Handle controlLoopElement statistics.
*
* @param controlLoopElementId controlLoopElement id
* @throws PfModelException in case of a model exception
*/
public void handleStatistics(UUID controlLoopElementId) throws PfModelException;
}
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