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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.simulator.simulation;
import java.io.IOException;
import java.util.List;
import java.util.Set;
import javax.ws.rs.core.Response;
import lombok.Getter;
import org.onap.policy.clamp.controlloop.common.handler.ControlLoopHandler;
import org.onap.policy.clamp.controlloop.participant.intermediary.parameters.ParticipantIntermediaryParameters;
import org.onap.policy.clamp.controlloop.participant.simulator.main.parameters.ParticipantSimulatorParameters;
import org.onap.policy.clamp.controlloop.participant.simulator.simulation.rest.SimulationElementController;
import org.onap.policy.clamp.controlloop.participant.simulator.simulation.rest.SimulationParticipantController;
import org.onap.policy.common.endpoints.event.comm.TopicSink;
import org.onap.policy.common.endpoints.listeners.MessageTypeDispatcher;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelRuntimeException;
/**
* This class handles simulation of participants and control loop elements.
*
* <p/>It is effectively a singleton that is started at system start.
*/
public class SimulationHandler extends ControlLoopHandler {
private final ParticipantIntermediaryParameters participantParameters;
@Getter
private SimulationProvider simulationProvider;
/**
* Create a handler.
*
* @param parameters the parameters for access to the database
*/
public SimulationHandler(ParticipantSimulatorParameters parameters) {
super(parameters.getDatabaseProviderParameters());
participantParameters = parameters.getIntermediaryParameters();
}
public static SimulationHandler getInstance() {
return Registry.get(SimulationHandler.class.getName());
}
@Override
public Set<Class<?>> getProviderClasses() {
return Set.of(SimulationElementController.class, SimulationParticipantController.class);
}
@Override
public void startProviders() {
simulationProvider = new SimulationProvider(participantParameters);
}
@Override
public void stopProviders() {
try {
simulationProvider.close();
} catch (IOException e) {
throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, "Stop providers failed ", e);
}
}
}
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