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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2019 Samsung Electronics Co., Ltd.
* Copyright (C) 2022,2024 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.endpoints.event.comm;
import java.util.List;
import org.onap.policy.common.capabilities.Lockable;
import org.onap.policy.common.capabilities.Startable;
/**
* Essential Topic Data.
*/
public interface Topic extends TopicRegisterable, Startable, Lockable {
/**
* Underlying Communication infrastructure Types.
*/
enum CommInfrastructure {
/**
* UEB Communication Infrastructure.
*/
UEB,
/**
* KAFKA Communication Infrastructure.
*/
KAFKA,
/**
* NOOP for internal use only.
*/
NOOP,
/**
* REST Communication Infrastructure.
*/
REST
}
/**
* Gets the canonical topic name.
*
* @return topic name
*/
String getTopic();
/**
* Gets the effective topic that is used in
* the network communication. This name is usually
* the topic name.
*
* @return topic name alias
*/
String getEffectiveTopic();
/**
* Gets the communication infrastructure type.
*
* @return CommInfrastructure object
*/
CommInfrastructure getTopicCommInfrastructure();
/**
* Return list of servers.
*
* @return bus servers
*/
List<String> getServers();
/**
* Get the more recent events in this topic entity.
*
* @return list of most recent events
*/
String[] getRecentEvents();
}
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