rulemgt/src/main/java/org/openo/holmes/rulemgt/bolt/enginebolt/EngineService.java

   1 /**\r
   2  * Copyright 2017 ZTE Corporation.\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 package org.openo.holmes.rulemgt.bolt.enginebolt;\r
  17 \r
  18 import com.fasterxml.jackson.databind.ObjectMapper;\r
  19 import java.io.ByteArrayOutputStream;\r
  20 import java.io.IOException;\r
  21 import java.io.UnsupportedEncodingException;\r
  22 import lombok.extern.slf4j.Slf4j;\r
  23 import org.apache.commons.lang3.StringUtils;\r
  24 import org.apache.http.HttpEntity;\r
  25 import org.apache.http.HttpResponse;\r
  26 import org.apache.http.client.methods.HttpDelete;\r
  27 import org.apache.http.client.methods.HttpPost;\r
  28 import org.apache.http.client.methods.HttpPut;\r
  29 import org.apache.http.client.methods.HttpRequestBase;\r
  30 import org.apache.http.entity.BufferedHttpEntity;\r
  31 import org.apache.http.entity.ByteArrayEntity;\r
  32 import org.apache.http.impl.client.CloseableHttpClient;\r
  33 import org.apache.http.impl.client.HttpClients;\r
  34 import org.jvnet.hk2.annotations.Service;\r
  35 import org.openo.holmes.common.config.MicroServiceConfig;\r
  36 import org.openo.holmes.common.exception.CorrelationException;\r
  37 import org.openo.holmes.common.utils.I18nProxy;\r
  38 import org.openo.holmes.rulemgt.bean.request.CorrelationCheckRule4Engine;\r
  39 import org.openo.holmes.rulemgt.bean.request.CorrelationDeployRule4Engine;\r
  40 import org.openo.holmes.rulemgt.constant.RuleMgtConstant;\r
  41 \r
  42 @Slf4j\r
  43 @Service\r
  44 public class EngineService {\r
  45 \r
  46     protected HttpResponse delete(String packageName) throws IOException {\r
  47         return deleteRequest(MicroServiceConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH + "/" + packageName);\r
  48     }\r
  49 \r
  50     protected HttpResponse check(CorrelationCheckRule4Engine correlationCheckRule4Engine)\r
  51             throws IOException {\r
  52         ObjectMapper mapper = new ObjectMapper();\r
  53         String content = mapper.writeValueAsString(correlationCheckRule4Engine);\r
  54         return postRequest(MicroServiceConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH, content);\r
  55     }\r
  56 \r
  57     protected HttpResponse deploy(CorrelationDeployRule4Engine correlationDeployRule4Engine) throws IOException {\r
  58         ObjectMapper mapper = new ObjectMapper();\r
  59         String content = mapper.writeValueAsString(correlationDeployRule4Engine);\r
  60         return putRequest(MicroServiceConfig.getMsbServerAddr() + RuleMgtConstant.ENGINE_PATH, content);\r
  61     }\r
  62 \r
  63     private HttpResponse postRequest(String url, String content) throws IOException {\r
  64         CloseableHttpClient httpClient = HttpClients.createDefault();\r
  65         try {\r
  66             HttpPost httpPost = new HttpPost(url);\r
  67             log.info("url:" + url + "," + "post:" + httpPost);\r
  68             setHeader(httpPost);\r
  69             if (StringUtils.isNotEmpty(content)) {\r
  70                 httpPost.setEntity(new ByteArrayEntity(content.getBytes()));\r
  71             }\r
  72             return httpClient.execute(httpPost);\r
  73         } finally {\r
  74             httpClient.close();\r
  75         }\r
  76     }\r
  77 \r
  78     private HttpResponse putRequest(String url, String content) throws IOException {\r
  79         CloseableHttpClient httpClient = HttpClients.createDefault();\r
  80         try {\r
  81             HttpPut httpPut = new HttpPut(url);\r
  82             setHeader(httpPut);\r
  83             if (StringUtils.isNotEmpty(content)) {\r
  84                 httpPut.setEntity(new ByteArrayEntity(content.getBytes()));\r
  85             }\r
  86             return httpClient.execute(httpPut);\r
  87         } finally {\r
  88             httpClient.close();\r
  89         }\r
  90     }\r
  91 \r
  92     private HttpResponse deleteRequest(String url) throws IOException {\r
  93         CloseableHttpClient httpClient = HttpClients.createDefault();\r
  94         try {\r
  95             HttpDelete httpDelete = new HttpDelete(url);\r
  96             setHeader(httpDelete);\r
  97             return httpClient.execute(httpDelete);\r
  98         } finally {\r
  99             httpClient.close();\r
 100         }\r
 101     }\r
 102 \r
 103     private void setHeader(HttpRequestBase httpRequestBase) {\r
 104         httpRequestBase.setHeader("Content-Type", "text/html;charset=UTF-8");\r
 105         httpRequestBase.setHeader("Accept", "application/json");\r
 106         httpRequestBase.setHeader("Content-Type", "application/json");\r
 107     }\r
 108 \r
 109     public byte[] getData(HttpEntity httpEntity) throws IOException {\r
 110         BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(httpEntity);\r
 111         ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();\r
 112         bufferedHttpEntity.writeTo(byteArrayOutputStream);\r
 113         byte[] responseBytes = byteArrayOutputStream.toByteArray();\r
 114         return responseBytes;\r
 115     }\r
 116 \r
 117     public String getResponseContent(HttpResponse httpResponse) throws CorrelationException {\r
 118         byte[] dataByte;\r
 119         String result = null;\r
 120         try {\r
 121             HttpEntity httpEntity = httpResponse.getEntity();\r
 122             if (httpEntity != null) {\r
 123                 byte[] responseBytes = getData(httpEntity);\r
 124                 dataByte = responseBytes;\r
 125                 result = bytesToString(dataByte);\r
 126             }\r
 127             return result;\r
 128         } catch (Exception e) {\r
 129             throw new CorrelationException(I18nProxy.RULE_MANAGEMENT_PARSE_DEPLOY_RESULT_ERROR, e);\r
 130         }\r
 131     }\r
 132 \r
 133     private String bytesToString(byte[] bytes) throws UnsupportedEncodingException {\r
 134         if (bytes != null) {\r
 135             String returnStr = new String(bytes, "utf-8");\r
 136             returnStr = StringUtils.trim(returnStr);\r
 137             return returnStr;\r
 138         }\r
 139         return null;\r
 140     }\r
 141 }\r