msb-core/apiroute/apiroute-service/src/main/java/org/openo/msb/wrapper/MetricsServiceWrapper.java

   1 /**\r
   2  * Copyright 2016 ZTE, Inc. and others.\r
   3  *\r
   4  * Licensed under the Apache License, Version 2.0 (the "License");\r
   5  * you may not use this file except in compliance with the License.\r
   6  * You may obtain a copy of the License at\r
   7  *\r
   8  *     http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  * Unless required by applicable law or agreed to in writing, software\r
  11  * distributed under the License is distributed on an "AS IS" BASIS,\r
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  * See the License for the specific language governing permissions and\r
  14  * limitations under the License.\r
  15  */\r
  16 \r
  17 package org.openo.msb.wrapper;\r
  18 \r
  19 import java.io.IOException;\r
  20 \r
  21 import org.apache.http.ParseException;\r
  22 import org.apache.http.client.methods.CloseableHttpResponse;\r
  23 import org.apache.http.client.methods.HttpGet;\r
  24 import org.apache.http.impl.client.CloseableHttpClient;\r
  25 import org.apache.http.impl.client.HttpClients;\r
  26 import org.apache.http.util.EntityUtils;\r
  27 import org.openo.msb.api.MetricsInfo;\r
  28 import org.openo.msb.wrapper.util.MetricsUtil;\r
  29 import org.slf4j.Logger;\r
  30 import org.slf4j.LoggerFactory;\r
  31 \r
  32 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;\r
  33 import com.fasterxml.jackson.annotation.PropertyAccessor;\r
  34 import com.fasterxml.jackson.databind.DeserializationFeature;\r
  35 import com.fasterxml.jackson.databind.ObjectMapper;\r
  36 \r
  37 public class MetricsServiceWrapper {\r
  38 \r
  39         private static final Logger LOGGER = LoggerFactory\r
  40                         .getLogger(MetricsServiceWrapper.class);\r
  41 \r
  42         public static MetricsInfo getMetricsInfo() {\r
  43 \r
  44                 String metricsUrl = MetricsUtil.adminContextPath;\r
  45                 String metricsJson = sendGetRequest(metricsUrl);\r
  46 \r
  47                 metricsJson = metricsJson.replace("E_", "");//.replaceAll("(?![0-9])(\\.)(?![0-9])", "_").replace("-", "_")\r
  48                 ObjectMapper mapper = new ObjectMapper();\r
  49                 mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);\r
  50                 mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,\r
  51                                 false);\r
  52                 MetricsInfo metricsInfo = new MetricsInfo();\r
  53                 try {\r
  54                         metricsInfo = mapper.readValue(metricsJson, MetricsInfo.class);\r
  55                 } catch (Exception e) {\r
  56                         // TODO Auto-generated catch block\r
  57                         LOGGER.error("Jackson readValue to metricsInfo throw exception", e);\r
  58                 }\r
  59 \r
  60                 return metricsInfo;\r
  61         }\r
  62 \r
  63         public static String sendGetRequest(String url) {\r
  64                 CloseableHttpClient httpClient = HttpClients.createDefault();  \r
  65                 HttpGet httpGet = new HttpGet(url);\r
  66 \r
  67                 try {\r
  68                         CloseableHttpResponse res = httpClient.execute(httpGet);\r
  69                         try {\r
  70                                 if (res.getStatusLine().getStatusCode() == MetricsUtil.SC_OK) {\r
  71                                         return EntityUtils.toString(res.getEntity());\r
  72                                 }\r
  73                         } finally {\r
  74                                 res.close();\r
  75                         }\r
  76                 } catch (ParseException e) {\r
  77                         LOGGER.error("HttpClient throw ParseException:" + url, e);\r
  78                 } catch (IOException e) {\r
  79                         LOGGER.error("HttpClient throw IOException:" + url, e);\r
  80                 }\r
  81                 finally{\r
  82                         try {\r
  83                                 httpClient.close();\r
  84                         } catch (IOException e) {\r
  85                                 // TODO Auto-generated catch block\r
  86                                 LOGGER.error("HttpClient Close throw IOException", e);\r
  87                         }\r
  88                 }\r
  89 \r
  90                 return null;\r
  91         }\r
  92 }\r