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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2020-2021 Nordix Foundation.
* Modifications 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pap.main.rest;
import java.time.Instant;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.Response;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.base.PfModelRuntimeException;
import org.onap.policy.models.pdp.concepts.PdpStatistics;
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.startstop.PapActivator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class to fetch statistics of pap component.
*
* @author Ram Krishna Verma (ram.krishna.verma@est.tech)
*/
public class StatisticsRestProvider {
private static final Logger LOGGER = LoggerFactory.getLogger(StatisticsRestProvider.class);
private static final String GET_STATISTICS_ERR_MSG = "fetch database failed";
private static final String DESC_ORDER = "DESC";
/**
* Returns the current statistics of pap component.
*
* @return Report containing statistics of pap component
*/
public StatisticsReport fetchCurrentStatistics() {
final StatisticsReport report = new StatisticsReport();
report.setCode(Registry.get(PapConstants.REG_PAP_ACTIVATOR, PapActivator.class).isAlive() ? 200 : 500);
PapStatisticsManager mgr = Registry.get(PapConstants.REG_STATISTICS_MANAGER, PapStatisticsManager.class);
report.setTotalPdpCount(mgr.getTotalPdpCount());
report.setTotalPdpGroupCount(mgr.getTotalPdpGroupCount());
report.setTotalPolicyDownloadCount(mgr.getTotalPolicyDownloadCount());
report.setPolicyDownloadSuccessCount(mgr.getPolicyDownloadSuccessCount());
report.setPolicyDownloadFailureCount(mgr.getPolicyDownloadFailureCount());
report.setTotalPolicyDeployCount(mgr.getTotalPolicyDeployCount());
report.setPolicyDeploySuccessCount(mgr.getPolicyDeploySuccessCount());
report.setPolicyDeployFailureCount(mgr.getPolicyDeployFailureCount());
return report;
}
/**
* Returns statistics of pdp component from database.
*
* @param groupName name of the PDP group
* @param subType type of the sub PDP group
* @param pdpName the name of the PDP
* @param recordCount the count to query from database
* @return Report containing statistics of pdp component
* @throws PfModelException when database can not found
*/
public Map<String, Map<String, List<PdpStatistics>>> fetchDatabaseStatistics(String groupName, String subType,
String pdpName, int recordCount) throws PfModelException {
final PolicyModelsProviderFactoryWrapper modelProviderWrapper =
Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
Map<String, Map<String, List<PdpStatistics>>> pdpStatisticsMap;
try (PolicyModelsProvider databaseProvider = modelProviderWrapper.create()) {
Instant startTime = null;
Instant endTime = null;
if (groupName == null) {
pdpStatisticsMap = generatePdpStatistics(databaseProvider.getPdpStatistics(pdpName, startTime));
} else {
pdpStatisticsMap = generatePdpStatistics(databaseProvider.getFilteredPdpStatistics(pdpName, groupName,
subType, startTime, endTime, DESC_ORDER, recordCount));
}
} catch (final PfModelException exp) {
String errorMessage = GET_STATISTICS_ERR_MSG + "groupName:" + groupName + "subType:" + subType + "pdpName:"
+ pdpName + exp.getMessage();
LOGGER.debug(errorMessage, exp);
throw new PfModelRuntimeException(Response.Status.BAD_REQUEST, errorMessage);
}
return pdpStatisticsMap;
}
/**
* generate the statistics of pap component by group/subgroup.
*
*/
private Map<String, Map<String, List<PdpStatistics>>> generatePdpStatistics(List<PdpStatistics> pdpStatisticsList) {
Map<String, Map<String, List<PdpStatistics>>> groupMap = new HashMap<>();
if (pdpStatisticsList != null) {
pdpStatisticsList.stream().forEach(s -> {
String curGroup = s.getPdpGroupName();
String curSubGroup = s.getPdpSubGroupName();
groupMap.computeIfAbsent(curGroup, curGroupMap -> new HashMap<>())
.computeIfAbsent(curSubGroup, curSubGroupList -> new ArrayList<>()).add(s);
});
}
return groupMap;
}
}
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