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