rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DaceConfigurationPolling.java

   1 /**
   2  * Copyright 2017 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   5  * in compliance with the License. You may obtain a copy of the License at
   6  *
   7  * http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software distributed under the License
  10  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  11  * or implied. See the License for the specific language governing permissions and limitations under
  12  * the License.
  13  */
  14 package org.onap.holmes.rulemgt.dcae;
  15
  16 import com.fasterxml.jackson.core.JsonProcessingException;
  17 import com.fasterxml.jackson.databind.ObjectMapper;
  18 import java.util.List;
  19 import javax.ws.rs.client.Client;
  20 import javax.ws.rs.client.ClientBuilder;
  21 import javax.ws.rs.client.Entity;
  22 import javax.ws.rs.client.WebTarget;
  23 import javax.ws.rs.core.MediaType;
  24 import lombok.extern.slf4j.Slf4j;
  25 import org.glassfish.jersey.client.ClientConfig;
  26 import org.onap.holmes.common.config.MicroServiceConfig;
  27 import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
  28 import org.onap.holmes.common.dcae.entity.Rule;
  29 import org.onap.holmes.common.dcae.utils.DcaeConfigurationParser;
  30 import org.onap.holmes.common.exception.CorrelationException;
  31 import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;
  32 import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;
  33 import org.onap.holmes.rulemgt.bean.response.RuleResult4API;
  34
  35 @Slf4j
  36 public class DaceConfigurationPolling implements Runnable {
  37
  38     public static long POLLING_PERIOD = 10 * 1000;
  39
  40     private String hostname;
  41
  42     private String url = "http://127.0.0.1/api/holmes-rule-mgmt/v1/rule";
  43
  44     public DaceConfigurationPolling(String hostname) {
  45         this.hostname = hostname;
  46     }
  47
  48     @Override
  49     public void run() {
  50         DcaeConfigurations dcaeConfigurations = null;
  51         try {
  52             dcaeConfigurations = getDcaeConfigurations();
  53         } catch (CorrelationException e) {
  54             log.error("Failed to polling dcae configurations" + e.getMessage());
  55         }
  56         if (dcaeConfigurations != null) {
  57             RuleQueryListResponse ruleQueryListResponse = getAllCorrelationRules();
  58             List<RuleResult4API> ruleResult4APIs = ruleQueryListResponse.getCorrelationRules();
  59             deleteAllCorrelationRules(ruleResult4APIs);
  60             try {
  61                 addAllCorrelationRules(dcaeConfigurations);
  62             } catch (CorrelationException e) {
  63                 log.error("Failed to add rules" + e.getMessage());
  64             }
  65         }
  66     }
  67
  68     private DcaeConfigurations getDcaeConfigurations() throws CorrelationException {
  69         String serviceAddrInfo = MicroServiceConfig.getServiceAddrInfoFromCBS(hostname);
  70         DcaeConfigurations dcaeConfigurations = null;
  71         dcaeConfigurations = DcaeConfigurationParser.parse(serviceAddrInfo);
  72         return dcaeConfigurations;
  73     }
  74
  75     private RuleQueryListResponse getAllCorrelationRules() {
  76         Client client = ClientBuilder.newClient(new ClientConfig());
  77         WebTarget webTarget = client.target(url);
  78         return webTarget.request("application/json").get()
  79                 .readEntity(RuleQueryListResponse.class);
  80     }
  81
  82     private void addAllCorrelationRules(DcaeConfigurations dcaeConfigurations) throws CorrelationException {
  83         for (Rule rule : dcaeConfigurations.getDefaultRules()) {
  84             RuleCreateRequest ruleCreateRequest = getRuleCreateRequest(rule);
  85             Client client = ClientBuilder.newClient(new ClientConfig());
  86             ObjectMapper mapper = new ObjectMapper();
  87             String content = null;
  88             try {
  89                 content = mapper.writeValueAsString(ruleCreateRequest);
  90             } catch (JsonProcessingException e) {
  91                 throw new CorrelationException("Failed to convert the message object to a json string.", e);
  92             }
  93             WebTarget webTarget = client.target(url);
  94             webTarget.request(MediaType.APPLICATION_JSON)
  95                     .put(Entity.entity(content, MediaType.APPLICATION_JSON));
  96         }
  97     }
  98
  99     private void deleteAllCorrelationRules(List<RuleResult4API> ruleResult4APIs){
 100         ruleResult4APIs.forEach(correlationRule ->{
 101             Client client = ClientBuilder.newClient(new ClientConfig());
 102             WebTarget webTarget = client.target(url + "/" + correlationRule.getRuleId());
 103             webTarget.request(MediaType.APPLICATION_JSON).delete();
 104         });
 105     }
 106
 107     private RuleCreateRequest getRuleCreateRequest(Rule rule) {
 108         RuleCreateRequest ruleCreateRequest = new RuleCreateRequest();
 109         ruleCreateRequest.setRuleName(rule.getName());
 110         ruleCreateRequest.setContent(rule.getContents());
 111         ruleCreateRequest.setDescription("");
 112         ruleCreateRequest.setEnabled(1);
 113         return ruleCreateRequest;
 114     }
 115 }