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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. 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.event;
import java.util.List;
import org.onap.policy.apex.model.basicmodel.concepts.ApexException;
/**
* The Interface ApexEventConverter is used for applications that want to convert arbitrary event
* types to and from Apex events. Application implement this interface to convert their events to
* and from Apex events.The Apex service can then use this interface to transparently transfer
* events into and out of an Apex system.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public interface ApexEventConverter {
/**
* Convert an event of arbitrary type into an Apex event.
*
* @param name the name of the incoming event
* @param eventOfOtherType the event of some other type to convert
* @return the apex event
* @throws ApexException thrown on conversion errors
*/
List<ApexEvent> toApexEvent(String name, Object eventOfOtherType) throws ApexException;
/**
* Convert an Apex event into an event of arbitrary type {@code OTHER_EVENT_TYPE}.
*
* @param apexEvent the apex event to convert
* @return the event converted into the other type
* @throws ApexException thrown on conversion errors
*/
Object fromApexEvent(ApexEvent apexEvent) throws ApexException;
}
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