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/*-
* ============LICENSE_START=======================================================
* ONAP-Logging
* ================================================================================
* Copyright (C) 2017 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.logging.eelf;
import java.util.concurrent.ConcurrentHashMap;
/**
* EventTrackInfo contains a ConcurrentHashMap of EventData.
*/
public class EventTrackInfo {
private ConcurrentHashMap<String, EventData> eventInfo = null;
public EventTrackInfo() {
/*
* An initial capacity of 16 ensures the number of elements before resizing happens
* Load factor of 0,9 ensures a dense packaging inside ConcurrentHashMap which will optimize memory use
* Concurrency Level set to 1 will ensure that only one shard is created and maintained
*/
eventInfo = new ConcurrentHashMap<>(16, 0.9f, 1);
}
/**
* Returns an instance of EventData associated to this requestID
* @param requestID request id
* @return EventData
*/
public EventData getEventDataByRequestID(String requestID) {
return eventInfo.get(requestID);
}
/**
* Stores an EventData object in a ConcurrentHashMap using its requestID as key.
* @param event event data
*/
public void storeEventData(EventData event) {
if (event != null) {
String id = event.getRequestID();
if (id == null || id.isEmpty()) {
return;
}
//in case override the start time, check the original event was already stored or not
if (!eventInfo.containsKey(id)) {
eventInfo.put(id, event);
}
}
}
/**
* Removes an EventData object from a ConcurrentHashMap using the eventId as key.
* @param eventId event id
*/
public void remove(String eventId) {
if (eventInfo != null) {
eventInfo.remove(eventId);
}
}
/**
* Returns a ConcurrentHashMap of EventData
*/
public ConcurrentHashMap<String, EventData> getEventInfo() {
return eventInfo;
}
}
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