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/*
* ============LICENSE_START==============================================
* Copyright (c) 2019 AT&T Intellectual Property.
* =======================================================================
* 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.optf.cmso.optimizer.clients.optimizer;
import com.google.ical.compat.jodatime.DateTimeIterator;
import java.text.ParseException;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Collectors;
import org.joda.time.DateTime;
import org.onap.optf.cmso.optimizer.availability.timewindows.RecurringWindows;
import org.onap.optf.cmso.optimizer.clients.optimizer.models.ElementSlot;
import org.onap.optf.cmso.optimizer.clients.optimizer.models.OptimizerSchedule;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyElementInfo;
import org.onap.optf.cmso.optimizer.clients.topology.models.TopologyResponse;
import org.onap.optf.cmso.optimizer.service.rs.models.ChangeWindow;
import org.onap.optf.cmso.optimizer.service.rs.models.ElementInfo;
import org.onap.optf.cmso.optimizer.service.rs.models.OptimizerRequest;
import org.onap.optf.cmso.optimizer.service.rs.models.OptimizerScheduleInfo;
import org.onap.optf.cmso.optimizer.service.rs.models.ScheduledElement;
import org.onap.optf.cmso.optimizer.service.rs.models.ScheduledElement.ScheduleType;
import org.onap.optf.cmso.optimizer.service.rs.models.UnScheduledElement;
import org.onap.optf.cmso.optimizer.service.rs.models.UnScheduledElement.NotScheduledReason;
// This class ensures that the node indices nodes and the time slots are the
/**
* The Class ElementWindowMapping.
*/
// same when processing the optimizer engine response as when initiating.
public class ElementWindowMapping {
protected OptimizerRequest optimizerRequest;
protected TopologyResponse topologyResponse;
protected Map<String, TopologyElementInfo> nodeInfo = new TreeMap<>();
private List<TopologyElementInfo> nodeArray = null;
/**
* Instantiates a new element window mapping.
*
* @param optimizerRequest the optimizer request
* @param topologyResponse the topology response
* @throws ParseException the parse exception
*/
public ElementWindowMapping(OptimizerRequest optimizerRequest, TopologyResponse topologyResponse)
throws ParseException {
this.optimizerRequest = optimizerRequest;
this.topologyResponse = topologyResponse;
initialize();
}
private void initialize() throws ParseException {
List<TopologyElementInfo> elements = topologyResponse.getElements();
for (TopologyElementInfo info : elements) {
nodeInfo.put(info.getElementId(), info);
}
}
protected DateTimeIterator getRecurringIterator() throws ParseException {
// Only support 1 change window for now
ChangeWindow window = optimizerRequest.getChangeWindows().get(0);
Long duration = new Long(optimizerRequest.getNormalDuration());
if (optimizerRequest.getAdditionalDuration() != null) {
duration += optimizerRequest.getAdditionalDuration();
}
DateTimeIterator recur = RecurringWindows.getRecurringListForChangeWindow(window, duration);
return recur;
}
/**
* Initialize for process result.
*/
public void initializeForProcessResult() {
// we need nodeInfo to be an array to speed up the result processing.
// but we need it sorted by elementId as when we created it....
nodeArray = nodeInfo.values().stream().collect(Collectors.toList());
nodeInfo.clear();
}
/**
* Process result.
*
* @param result the result
* @return the optimizer schedule info
* @throws ParseException the parse exception
*/
public OptimizerScheduleInfo processResult(OptimizerSchedule result) throws ParseException {
// When considering the memory vs performance
// 5 minute duration for a month long change window is 8928 slots
// The assumption is that there were be fewer allocated slots
// than potential slots.
List<ElementSlot> elements = result.getElementSlotLoader();
Map<Integer, List<ElementSlot>> mapSlotToElement =
elements.stream().collect(Collectors.groupingBy(ElementSlot::getSlot));
DateTimeIterator iter = getRecurringIterator();
// TODO - supporting only 1 change window at the moment.....
Long endWindow = optimizerRequest.getChangeWindows().get(0).getEndTime().getTime();
Integer slotIndex = 1;
while (iter.hasNext()) {
DateTime dateTime = iter.next();
if (dateTime.isAfter(endWindow)) {
break;
}
List<ElementSlot> list = mapSlotToElement.get(slotIndex);
if (list != null) {
list.stream().forEach(x -> x.setTime(dateTime.getMillis()));
}
slotIndex++;
}
//
// All assigned ElementSlots now have corresponding UTC time
//
OptimizerScheduleInfo info = new OptimizerScheduleInfo();
for (ElementSlot slot : elements) {
updateInfo(slot, info);
}
return info;
}
private void updateInfo(ElementSlot slot, OptimizerScheduleInfo info) {
TopologyElementInfo element = nodeArray.get(slot.getElementIndex() - 1);
if (slot.getSlot() > 0) {
ScheduledElement scheduled = new ScheduledElement();
Integer durationInSeconds = optimizerRequest.getNormalDuration();
if (optimizerRequest.getAdditionalDuration() != null) {
durationInSeconds += optimizerRequest.getAdditionalDuration();
}
scheduled.setDurationSeconds(durationInSeconds.longValue());
scheduled.setElementId(element.getElementId());
scheduled.setStartTime(new Date(slot.getTime()));
scheduled.setEndTime(new Date(slot.getTime() + (durationInSeconds * 1000)));
scheduled.setScheduleType(ScheduleType.INDIVIDUAL);
scheduled.setGroupId(getGroupId(scheduled.getElementId()));
info.getScheduledElements().add(scheduled);
} else {
UnScheduledElement unscheduled = new UnScheduledElement();
unscheduled.setElementId(element.getElementId());
unscheduled.setGroupId("unknown");
unscheduled.getNotScheduledReaons().add(NotScheduledReason.Other);
unscheduled.getNotScheduledMessages().add("Unknown");
info.getUnScheduledElements().add(unscheduled);
}
}
private String getGroupId(String elementId) {
ElementInfo info = getElementInfo(elementId);
if (info != null) {
return info.getGroupId();
}
return "";
}
private ElementInfo getElementInfo(String elementId) {
List<ElementInfo> elements = optimizerRequest.getElements();
ElementInfo info = elements.stream().filter(x -> x.getElementId().equals(elementId)).findAny().orElse(null);
return info;
}
}
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