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