policy-agent/src/main/java/org/oransc/policyagent/tasks/StartupService.java

   1 /*-
   2  * ========================LICENSE_START=================================
   3  * O-RAN-SC
   4  * %%
   5  * Copyright (C) 2019 Nordix Foundation
   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  * ========================LICENSE_END===================================
  19  */
  20
  21 package org.oransc.policyagent.tasks;
  22
  23 import org.oransc.policyagent.clients.A1Client;
  24 import org.oransc.policyagent.configuration.ApplicationConfig;
  25 import org.oransc.policyagent.configuration.RicConfig;
  26 import org.oransc.policyagent.repository.Policies;
  27 import org.oransc.policyagent.repository.PolicyTypes;
  28 import org.oransc.policyagent.repository.Ric;
  29 import org.oransc.policyagent.repository.Rics;
  30 import org.oransc.policyagent.repository.Services;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33 import org.springframework.beans.factory.annotation.Autowired;
  34 import org.springframework.core.Ordered;
  35 import org.springframework.core.annotation.Order;
  36 import org.springframework.stereotype.Service;
  37
  38 /**
  39  * Loads information about RealTime-RICs at startup.
  40  */
  41 @Service("startupService")
  42 @Order(Ordered.HIGHEST_PRECEDENCE)
  43 public class StartupService implements ApplicationConfig.Observer {
  44
  45     private static final Logger logger = LoggerFactory.getLogger(StartupService.class);
  46
  47     @Autowired
  48     ApplicationConfig applicationConfig;
  49
  50     @Autowired
  51     RefreshConfigTask refreshConfigTask;
  52
  53     @Autowired
  54     private Rics rics;
  55
  56     @Autowired
  57     PolicyTypes policyTypes;
  58
  59     @Autowired
  60     private A1Client a1Client;
  61
  62     @Autowired
  63     private Policies policies;
  64
  65     @Autowired
  66     private Services services;
  67
  68     // Only for unittesting
  69     StartupService(ApplicationConfig appConfig, RefreshConfigTask refreshTask, Rics rics, PolicyTypes policyTypes,
  70         A1Client a1Client, Policies policies, Services services) {
  71         this.applicationConfig = appConfig;
  72         this.refreshConfigTask = refreshTask;
  73         this.rics = rics;
  74         this.policyTypes = policyTypes;
  75         this.a1Client = a1Client;
  76         this.policies = policies;
  77         this.services = services;
  78     }
  79
  80     @Override
  81     public void onRicConfigUpdate(RicConfig ricConfig, ApplicationConfig.RicConfigUpdate event) {
  82         synchronized (this.rics) {
  83             if (event.equals(ApplicationConfig.RicConfigUpdate.ADDED)
  84                 || event.equals(ApplicationConfig.RicConfigUpdate.CHANGED)) {
  85                 Ric ric = new Ric(ricConfig);
  86                 rics.put(ric);
  87                 RicRecoveryTask recoveryTask = new RicRecoveryTask(a1Client, policyTypes, policies, services);
  88                 recoveryTask.run(ric);
  89             } else if (event.equals(ApplicationConfig.RicConfigUpdate.REMOVED)) {
  90                 rics.remove(ricConfig.name());
  91             } else {
  92                 logger.debug("Unhandled event :" + event);
  93             }
  94         }
  95     }
  96
  97     /**
  98      * Reads the configured Rics and performs the service discovery. The result is put into the repository.
  99      */
 100     public void startup() {
 101         logger.debug("Starting up");
 102         applicationConfig.addObserver(this);
 103         refreshConfigTask.start();
 104     }
 105
 106 }