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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pap.main.comm;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
import org.onap.policy.common.endpoints.listeners.TypedMessageListener;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pdp.concepts.PdpGroupFilter;
import org.onap.policy.models.pdp.concepts.PdpStatistics;
import org.onap.policy.models.pdp.concepts.PdpStatus;
import org.onap.policy.models.pdp.enums.PdpState;
import org.onap.policy.models.provider.PolicyModelsProvider;
import org.onap.policy.pap.main.PapConstants;
import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
import org.onap.policy.pap.main.parameters.PdpParameters;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Listens for PDP statistics, found within {@link PdpStatus} messages.
*/
public class PdpStatisticsListener implements TypedMessageListener<PdpStatus> {
private static final Logger LOGGER = LoggerFactory.getLogger(PdpStatisticsListener.class);
/**
* Maximum message age, in milliseconds - anything older than this is discarded.
*/
private final long maxMessageAgeMs;
/**
* Lock used when updating PDPs.
*/
private final Object updateLock;
/**
* Factory for PAP DAO.
*/
private final PolicyModelsProviderFactoryWrapper modelProviderWrapper;
/**
* Constructs the object.
*
* @param params PDP parameters
*/
public PdpStatisticsListener(PdpParameters params) {
maxMessageAgeMs = params.getMaxMessageAgeMs();
modelProviderWrapper = Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
updateLock = Registry.get(PapConstants.REG_PDP_MODIFY_LOCK, Object.class);
}
@Override
public void onTopicEvent(CommInfrastructure infra, String topic, PdpStatus message) {
long diffms = System.currentTimeMillis() - message.getTimestampMs();
if (diffms > maxMessageAgeMs) {
long diffsec = TimeUnit.SECONDS.convert(diffms, TimeUnit.MILLISECONDS);
LOGGER.info("discarding statistics message from {} age {}s", message.getName(), diffsec);
return;
}
if (!validStatistics(message)) {
LOGGER.info("discarding invalid/null statistics message from {}", message.getName());
return;
}
synchronized (updateLock) {
try (PolicyModelsProvider databaseProvider = modelProviderWrapper.create()) {
handleStatistics(message, databaseProvider);
} catch (final Exception exp) {
LOGGER.error("database provider error", exp);
}
}
}
private void handleStatistics(final PdpStatus message, final PolicyModelsProvider databaseProvider)
throws PfModelException {
final String pdpType = message.getPdpType();
final String pdpName = message.getName();
final PdpGroupFilter filter =
PdpGroupFilter.builder().name(message.getPdpGroup()).groupState(PdpState.ACTIVE).build();
boolean pdpFound = databaseProvider.getFilteredPdpGroups(filter).stream()
.flatMap(grp -> grp.getPdpSubgroups().stream())
.filter(subgrp -> subgrp.getPdpType().equals(pdpType))
.flatMap(subgrp -> subgrp.getPdpInstances().stream())
.anyMatch(pdp -> pdp.getInstanceId().equals(pdpName));
if (pdpFound) {
databaseProvider.createPdpStatistics(List.of(message.getStatistics()));
LOGGER.debug("Created PdpStatistics in DB for {}", pdpName);
}
}
private boolean validStatistics(final PdpStatus message) {
PdpStatistics stats = message.getStatistics();
if (stats == null) {
return false;
}
// @formatter:off
return new EqualsBuilder()
.append(PdpState.TERMINATED.equals(message.getState()), false)
.append(message.getPdpGroup() != null, true)
.append(message.getPdpType() != null, true)
.append(message.getName() != null, true)
.append(stats.getPdpGroupName(), message.getPdpGroup())
.append(stats.getPdpSubGroupName(), message.getPdpType())
.append(stats.getPdpInstanceId(), message.getName())
.append(stats.getPolicyDeployCount() >= 0, true)
.append(stats.getPolicyDeployFailCount() >= 0, true)
.append(stats.getPolicyDeploySuccessCount() >= 0, true)
.append(stats.getPolicyExecutedCount() >= 0, true)
.append(stats.getPolicyExecutedFailCount() >= 0, true)
.append(stats.getPolicyExecutedSuccessCount() >= 0, true)
.isEquals();
// @formatter:on
}
}
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