main/src/main/java/org/onap/policy/pap/main/rest/StatisticsRestProvider.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2020-2021 Nordix Foundation.
   4  *  Modifications Copyright (C) 2019, 2021 AT&T Intellectual Property.
   5  *  Modifications Copyright (C) 2021 Bell Canada. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  * SPDX-License-Identifier: Apache-2.0
  20  * ============LICENSE_END=========================================================
  21  */
  22
  23 package org.onap.policy.pap.main.rest;
  24
  25 import java.util.ArrayList;
  26 import java.util.HashMap;
  27 import java.util.List;
  28 import java.util.Map;
  29 import javax.ws.rs.core.Response;
  30 import org.onap.policy.common.utils.services.Registry;
  31 import org.onap.policy.models.base.PfModelException;
  32 import org.onap.policy.models.base.PfModelRuntimeException;
  33 import org.onap.policy.models.pdp.concepts.PdpStatistics;
  34 import org.onap.policy.models.pdp.persistence.provider.PdpFilterParameters;
  35 import org.onap.policy.models.provider.PolicyModelsProvider;
  36 import org.onap.policy.pap.main.PapConstants;
  37 import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
  38 import org.onap.policy.pap.main.startstop.PapActivator;
  39 import org.springframework.stereotype.Service;
  40
  41 /**
  42  * Class to fetch statistics of pap component.
  43  *
  44  * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
  45  */
  46 @Service
  47 public class StatisticsRestProvider {
  48     private static final String GET_STATISTICS_ERR_MSG = "database query failed";
  49
  50     /**
  51      * Returns the current statistics of pap component.
  52      *
  53      * @return Report containing statistics of pap component
  54      */
  55     public StatisticsReport fetchCurrentStatistics() {
  56         final var report = new StatisticsReport();
  57         report.setCode(Registry.get(PapConstants.REG_PAP_ACTIVATOR, PapActivator.class).isAlive() ? 200 : 500);
  58
  59         PapStatisticsManager mgr = Registry.get(PapConstants.REG_STATISTICS_MANAGER, PapStatisticsManager.class);
  60         report.setTotalPdpCount(mgr.getTotalPdpCount());
  61         report.setTotalPdpGroupCount(mgr.getTotalPdpGroupCount());
  62         report.setTotalPolicyDownloadCount(mgr.getTotalPolicyDownloadCount());
  63         report.setPolicyDownloadSuccessCount(mgr.getPolicyDownloadSuccessCount());
  64         report.setPolicyDownloadFailureCount(mgr.getPolicyDownloadFailureCount());
  65         report.setTotalPolicyDeployCount(mgr.getTotalPolicyDeployCount());
  66         report.setPolicyDeploySuccessCount(mgr.getPolicyDeploySuccessCount());
  67         report.setPolicyDeployFailureCount(mgr.getPolicyDeployFailureCount());
  68
  69         return report;
  70     }
  71
  72     /**
  73      * Returns statistics of pdp component from database.
  74      *
  75      * @param filter record filter
  76      * @return Report containing statistics of pdp component
  77      * @throws PfModelException when database can not found
  78      */
  79     public Map<String, Map<String, List<PdpStatistics>>> fetchDatabaseStatistics(PdpFilterParameters filter)
  80                     throws PfModelException {
  81         final PolicyModelsProviderFactoryWrapper modelProviderWrapper =
  82                         Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
  83         try (PolicyModelsProvider databaseProvider = modelProviderWrapper.create()) {
  84             return generatePdpStatistics(databaseProvider.getFilteredPdpStatistics(filter));
  85
  86         } catch (final PfModelException exp) {
  87             throw new PfModelRuntimeException(Response.Status.INTERNAL_SERVER_ERROR, GET_STATISTICS_ERR_MSG);
  88         }
  89     }
  90
  91     /**
  92      * generate the statistics of pap component by group/subgroup.
  93      *
  94      */
  95     private Map<String, Map<String, List<PdpStatistics>>> generatePdpStatistics(List<PdpStatistics> pdpStatisticsList) {
  96         Map<String, Map<String, List<PdpStatistics>>> groupMap = new HashMap<>();
  97         if (pdpStatisticsList != null) {
  98             pdpStatisticsList.stream().forEach(s -> {
  99                 String curGroup = s.getPdpGroupName();
 100                 String curSubGroup = s.getPdpSubGroupName();
 101                 groupMap.computeIfAbsent(curGroup, curGroupMap -> new HashMap<>())
 102                         .computeIfAbsent(curSubGroup, curSubGroupList -> new ArrayList<>()).add(s);
 103             });
 104         }
 105         return groupMap;
 106     }
 107 }