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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* 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.apex.service.engine.runtime.impl;
import lombok.AllArgsConstructor;
import org.onap.policy.apex.core.engine.engine.EnEventListener;
import org.onap.policy.apex.core.engine.event.EnEvent;
import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
import org.onap.policy.apex.service.engine.event.ApexEvent;
import org.onap.policy.apex.service.engine.event.impl.enevent.ApexEvent2EnEventConverter;
import org.onap.policy.apex.service.engine.runtime.ApexEventListener;
/**
* The Class EnEventListenerImpl is used by the Apex engine implementation to listen for events
* coming from the core APEX engine. This listener converts the {@link EnEvent} instances into
* {@link ApexEvent} instances using an {@link ApexEvent2EnEventConverter} instance and forwards the
* events to an {@link ApexEventListener} instance for outputting to listening applications. The
* {@link ApexEventListener} is implemented in the external application communicating with Apex.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
@AllArgsConstructor
public final class EnEventListenerImpl implements EnEventListener {
// Listener for ApexEvents
private final ApexEventListener apexEventListener;
// Converter for Engine events to Apex Events
private final ApexEvent2EnEventConverter apexEnEventConverter;
/**
* {@inheritDoc}.
*/
@Override
public void onEnEvent(final EnEvent enEvent) throws ApexException {
for (final ApexEvent apexEvent : apexEnEventConverter.toApexEvent(enEvent.getName(), enEvent)) {
apexEventListener.onApexEvent(apexEvent);
}
}
}
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