rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DcaeConfigurationPolling.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.DcaeConfigurationQuery;
  28 import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
  29 import org.onap.holmes.common.dcae.entity.Rule;
  30 import org.onap.holmes.common.dcae.utils.DcaeConfigurationParser;
  31 import org.onap.holmes.common.exception.CorrelationException;
  32 import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;
  33 import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;
  34 import org.onap.holmes.rulemgt.bean.response.RuleResult4API;
  35
  36 @Slf4j
  37 public class DcaeConfigurationPolling implements Runnable {
  38
  39     public static long POLLING_PERIOD = 10 * 1000L;
  40
  41     private String hostname;
  42
  43     private String url = "http://127.0.0.1:9101/api/holmes-rule-mgmt/v1/rule";
  44
  45     public DcaeConfigurationPolling(String hostname) {
  46         this.hostname = hostname;
  47     }
  48
  49     @Override
  50     public void run() {
  51         DcaeConfigurations dcaeConfigurations = null;
  52         try {
  53             dcaeConfigurations = DcaeConfigurationQuery.getDcaeConfigurations(hostname);
  54         } catch (CorrelationException e) {
  55             log.error("Failed to fetch DCAE configurations. " + e.getMessage());
  56         }
  57         if (dcaeConfigurations != null) {
  58             RuleQueryListResponse ruleQueryListResponse = getAllCorrelationRules();
  59             List<RuleResult4API> ruleResult4APIs = ruleQueryListResponse.getCorrelationRules();
  60             deleteAllCorrelationRules(ruleResult4APIs);
  61             try {
  62                 addAllCorrelationRules(dcaeConfigurations);
  63             } catch (CorrelationException e) {
  64                 log.error("Failed to add rules. " + e.getMessage());
  65             }
  66         }
  67     }
  68
  69     private RuleQueryListResponse getAllCorrelationRules() {
  70         Client client = ClientBuilder.newClient(new ClientConfig());
  71         WebTarget webTarget = client.target(url);
  72         return webTarget.request("application/json").get()
  73                 .readEntity(RuleQueryListResponse.class);
  74     }
  75
  76     private void addAllCorrelationRules(DcaeConfigurations dcaeConfigurations) throws CorrelationException {
  77         for (Rule rule : dcaeConfigurations.getDefaultRules()) {
  78             RuleCreateRequest ruleCreateRequest = getRuleCreateRequest(rule);
  79             Client client = ClientBuilder.newClient(new ClientConfig());
  80             ObjectMapper mapper = new ObjectMapper();
  81             String content = null;
  82             try {
  83                 content = mapper.writeValueAsString(ruleCreateRequest);
  84             } catch (JsonProcessingException e) {
  85                 throw new CorrelationException("Failed to convert the message object to a json string.", e);
  86             }
  87             WebTarget webTarget = client.target(url);
  88             webTarget.request(MediaType.APPLICATION_JSON)
  89                     .put(Entity.entity(content, MediaType.APPLICATION_JSON));
  90         }
  91     }
  92
  93     private void deleteAllCorrelationRules(List<RuleResult4API> ruleResult4APIs){
  94         ruleResult4APIs.forEach(correlationRule ->{
  95             Client client = ClientBuilder.newClient(new ClientConfig());
  96             WebTarget webTarget = client.target(url + "/" + correlationRule.getRuleId());
  97             webTarget.request(MediaType.APPLICATION_JSON).delete();
  98         });
  99     }
 100
 101     private RuleCreateRequest getRuleCreateRequest(Rule rule) {
 102         RuleCreateRequest ruleCreateRequest = new RuleCreateRequest();
 103         ruleCreateRequest.setLoopControlName(rule.getLoopControlName());
 104         ruleCreateRequest.setRuleName(rule.getName());
 105         ruleCreateRequest.setContent(rule.getContents());
 106         ruleCreateRequest.setDescription("");
 107         ruleCreateRequest.setEnabled(1);
 108         return ruleCreateRequest;
 109     }
 110 }