X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=rulemgt%2Fsrc%2Fmain%2Fjava%2Forg%2Fonap%2Fholmes%2Frulemgt%2Fdcae%2FDcaeConfigurationPolling.java;h=e6bc7903df0285880dd2d8f81ea792d70235ddbc;hb=95b4f4645fe544c8f11651d7aa78381b24fc3769;hp=4aa98eea4723dd2a686ececea139adaa9f873272;hpb=cab74c538b053cca4279aed6f7a8c32d7497f6bd;p=holmes%2Frule-management.git

diff --git a/rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DcaeConfigurationPolling.java b/rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DcaeConfigurationPolling.java
index 4aa98ee..e6bc790 100644
--- a/rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DcaeConfigurationPolling.java
+++ b/rulemgt/src/main/java/org/onap/holmes/rulemgt/dcae/DcaeConfigurationPolling.java
@@ -1,11 +1,11 @@
 /**
- * Copyright 2017 ZTE Corporation.
- *
+ * Copyright 2017-2020 ZTE Corporation.
+ * <p>
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
- *
+ * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
- *
+ * <p>
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  * or implied. See the License for the specific language governing permissions and limitations under
@@ -13,88 +13,160 @@
  */
 package org.onap.holmes.rulemgt.dcae;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import java.util.List;
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.ClientBuilder;
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.client.WebTarget;
-import javax.ws.rs.core.MediaType;
+
+import com.google.gson.Gson;
 import lombok.extern.slf4j.Slf4j;
-import org.glassfish.jersey.client.ClientConfig;
-import org.onap.holmes.common.config.MicroServiceConfig;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.methods.HttpDelete;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPut;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
 import org.onap.holmes.common.dcae.DcaeConfigurationQuery;
 import org.onap.holmes.common.dcae.entity.DcaeConfigurations;
 import org.onap.holmes.common.dcae.entity.Rule;
-import org.onap.holmes.common.dcae.utils.DcaeConfigurationParser;
 import org.onap.holmes.common.exception.CorrelationException;
+import org.onap.holmes.common.utils.GsonUtil;
+import org.onap.holmes.common.utils.HttpsUtils;
+import org.onap.holmes.common.utils.Md5Util;
 import org.onap.holmes.rulemgt.bean.request.RuleCreateRequest;
 import org.onap.holmes.rulemgt.bean.response.RuleQueryListResponse;
 import org.onap.holmes.rulemgt.bean.response.RuleResult4API;
 
+import javax.ws.rs.core.MediaType;
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.util.HashMap;
+import java.util.List;
+
 @Slf4j
 public class DcaeConfigurationPolling implements Runnable {
 
-    public static long POLLING_PERIOD = 10 * 1000L;
+    public static final long POLLING_PERIOD = 30 * 1000L;
 
     private String hostname;
 
-    private String url = "http://127.0.0.1/api/holmes-rule-mgmt/v1/rule";
+    private String url = "https://127.0.0.1:9101/api/holmes-rule-mgmt/v1/rule";
 
     public DcaeConfigurationPolling(String hostname) {
         this.hostname = hostname;
     }
 
+    private String prevConfigMd5 = Md5Util.md5(null);
+
+    private boolean prevResult = false;
+
     @Override
     public void run() {
         DcaeConfigurations dcaeConfigurations = null;
         try {
             dcaeConfigurations = DcaeConfigurationQuery.getDcaeConfigurations(hostname);
+            String md5 = Md5Util.md5(dcaeConfigurations);
+            if (prevResult && prevConfigMd5.equals(md5)) {
+                log.info("Operation aborted due to identical configurations.");
+                return;
+            }
+            prevConfigMd5 = md5;
+            prevResult = false;
         } catch (CorrelationException e) {
-            log.error("Failed to fetch DCAE configurations. " + e.getMessage());
+            log.error("Failed to fetch DCAE configurations. " + e.getMessage(), e);
+        } catch (Exception e) {
+            log.info("Failed to generate the MD5 information for new configurations.", e);
         }
+        RuleQueryListResponse ruleQueryListResponse = null;
         if (dcaeConfigurations != null) {
-            RuleQueryListResponse ruleQueryListResponse = getAllCorrelationRules();
+            try {
+                ruleQueryListResponse = getAllCorrelationRules();
+            } catch (CorrelationException e) {
+                log.error("Failed to get right response!" + e.getMessage(), e);
+            } catch (IOException e) {
+                log.error("Failed to extract response entity. " + e.getMessage(), e);
+            } catch (Exception e) {
+                log.error("Failed to build http client. " + e.getMessage(), e);
+            }
+        }
+        if (ruleQueryListResponse != null) {
             List<RuleResult4API> ruleResult4APIs = ruleQueryListResponse.getCorrelationRules();
             deleteAllCorrelationRules(ruleResult4APIs);
             try {
-                addAllCorrelationRules(dcaeConfigurations);
+                prevResult = addAllCorrelationRules(dcaeConfigurations);
             } catch (CorrelationException e) {
-                log.error("Failed to add rules. " + e.getMessage());
+                log.error("Failed to add rules. " + e.getMessage(), e);
+                prevResult = false;
             }
         }
     }
 
-    private RuleQueryListResponse getAllCorrelationRules() {
-        Client client = ClientBuilder.newClient(new ClientConfig());
-        WebTarget webTarget = client.target(url);
-        return webTarget.request("application/json").get()
-                .readEntity(RuleQueryListResponse.class);
+    public RuleQueryListResponse getAllCorrelationRules() throws CorrelationException, IOException {
+        HashMap<String, String> headers = new HashMap<>();
+        headers.put("Content-Type", MediaType.APPLICATION_JSON);
+        CloseableHttpClient httpClient = null;
+        HttpGet httpGet = new HttpGet(url);
+        try {
+            httpClient = HttpsUtils.getConditionalHttpsClient(HttpsUtils.DEFUALT_TIMEOUT);
+            HttpResponse httpResponse = HttpsUtils.get(httpGet, headers, httpClient);
+            String response = HttpsUtils.extractResponseEntity(httpResponse);
+            return GsonUtil.jsonToBean(response, RuleQueryListResponse.class);
+        } finally {
+            httpGet.releaseConnection();
+            closeHttpClient(httpClient);
+        }
     }
 
-    private void addAllCorrelationRules(DcaeConfigurations dcaeConfigurations) throws CorrelationException {
+    private boolean addAllCorrelationRules(DcaeConfigurations dcaeConfigurations) throws CorrelationException {
+        boolean suc = false;
         for (Rule rule : dcaeConfigurations.getDefaultRules()) {
             RuleCreateRequest ruleCreateRequest = getRuleCreateRequest(rule);
-            Client client = ClientBuilder.newClient(new ClientConfig());
-            ObjectMapper mapper = new ObjectMapper();
-            String content = null;
+            String content = "";
             try {
-                content = mapper.writeValueAsString(ruleCreateRequest);
-            } catch (JsonProcessingException e) {
+                content = GsonUtil.beanToJson(ruleCreateRequest);
+            } catch (Exception e) {
                 throw new CorrelationException("Failed to convert the message object to a json string.", e);
             }
-            WebTarget webTarget = client.target(url);
-            webTarget.request(MediaType.APPLICATION_JSON)
-                    .put(Entity.entity(content, MediaType.APPLICATION_JSON));
+            HashMap<String, String> headers = new HashMap<>();
+            headers.put("Content-Type", MediaType.APPLICATION_JSON);
+            headers.put("Accept", MediaType.APPLICATION_JSON);
+            HttpResponse httpResponse;
+            CloseableHttpClient httpClient = null;
+            HttpPut httpPut = new HttpPut(url);
+            try {
+                httpClient = HttpsUtils.getConditionalHttpsClient(HttpsUtils.DEFUALT_TIMEOUT);
+                httpResponse = HttpsUtils
+                        .put(httpPut, headers, new HashMap<>(), new StringEntity(content), httpClient);
+            } catch (UnsupportedEncodingException e) {
+                throw new CorrelationException("Failed to create https entity.", e);
+            } catch (Exception e) {
+                throw new CorrelationException(e.getMessage());
+            } finally {
+                httpPut.releaseConnection();
+                closeHttpClient(httpClient);
+            }
+            if (httpResponse != null) {
+                suc = httpResponse.getStatusLine().getStatusCode() == 200;
+            }
+            if (!suc) {
+                break;
+            }
         }
+        return suc;
     }
 
-    private void deleteAllCorrelationRules(List<RuleResult4API> ruleResult4APIs){
-        ruleResult4APIs.forEach(correlationRule ->{
-            Client client = ClientBuilder.newClient(new ClientConfig());
-            WebTarget webTarget = client.target(url + "/" + correlationRule.getRuleId());
-            webTarget.request(MediaType.APPLICATION_JSON).delete();
+    private void deleteAllCorrelationRules(List<RuleResult4API> ruleResult4APIs) {
+        ruleResult4APIs.forEach(correlationRule -> {
+            HashMap<String, String> headers = new HashMap<>();
+            headers.put("Content-Type", MediaType.APPLICATION_JSON);
+            CloseableHttpClient httpClient = null;
+            HttpDelete httpDelete = new HttpDelete(url + "/" + correlationRule.getRuleId());
+            try {
+                httpClient = HttpsUtils.getConditionalHttpsClient(HttpsUtils.DEFUALT_TIMEOUT);
+                HttpsUtils.delete(httpDelete, headers, httpClient);
+            } catch (Exception e) {
+                log.warn("Failed to delete rule, the rule id is : " + correlationRule.getRuleId()
+                        + " exception messge is : " + e.getMessage(), e);
+            } finally {
+                httpDelete.releaseConnection();
+                closeHttpClient(httpClient);
+            }
         });
     }
 
@@ -107,4 +179,14 @@ public class DcaeConfigurationPolling implements Runnable {
         ruleCreateRequest.setEnabled(1);
         return ruleCreateRequest;
     }
+
+    private void closeHttpClient(CloseableHttpClient httpClient) {
+        if (httpClient != null) {
+            try {
+                httpClient.close();
+            } catch (IOException e) {
+                log.warn("Failed to close http client!");
+            }
+        }
+    }
 }