gerrit.onap Code Review - vfc/nfvo/multivimproxy.git/blob

   1 /*
   2  * Copyright 2016 Huawei Technologies Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.vfc.nfvo.multivimproxy.service.adapter.impl;
  18
  19 import java.io.BufferedInputStream;
  20 import java.io.FileInputStream;
  21 import java.io.FileNotFoundException;
  22 import java.io.IOException;
  23 import java.io.InputStream;
  24 import java.util.HashMap;
  25 import java.util.Map;
  26 import java.util.concurrent.Executors;
  27
  28 import org.apache.logging.log4j.LogManager;
  29 import org.apache.logging.log4j.Logger;
  30 import org.onap.vfc.nfvo.multivimproxy.common.constant.Constant;
  31 import org.onap.vfc.nfvo.multivimproxy.common.constant.HttpConstant;
  32 import org.onap.vfc.nfvo.multivimproxy.common.constant.ParamConstant;
  33 import org.onap.vfc.nfvo.multivimproxy.common.constant.UrlConstant;
  34 import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.SystemEnvVariablesFactory;
  35 import org.onap.vfc.nfvo.multivimproxy.service.adapter.inf.IMultivimProxyAdapter2MSBManager;
  36 import org.onap.vfc.nfvo.multivimproxy.service.adapter.inf.IMultivimProxyAdapterMgrService;
  37
  38 import net.sf.json.JSONObject;
  39
  40 /**
  41  * <br>
  42  * <p>
  43  * </p>
  44  *
  45  * @author
  46  * @version VFC 1.0 Sep 22, 2016
  47  */
  48 public class MultivimProxyAdapterMgrService implements IMultivimProxyAdapterMgrService {
  49
  50     private static final Logger LOG = LogManager.getLogger(MultivimProxyAdapterMgrService.class);
  51
  52     public static final String RESMGRADAPTERINFO = "resmgradapterinfo.json";
  53
  54     @Override
  55     public void register() {
  56         // set BUS URL and mothedtype
  57         Map<String, String> paramsMap = new HashMap<>();
  58         paramsMap.put("url", UrlConstant.REST_MSB_REGISTER);
  59         paramsMap.put("methodType", ParamConstant.PARAM_POST);
  60
  61         // get multivimproxy info and raise registration
  62         try {
  63             String resmgrInfo = readVimAdapterInfoFromJson();
  64             if(!"".equals(resmgrInfo)) {
  65                 JSONObject adapterObject = JSONObject.fromObject(resmgrInfo);
  66                 RegisterMultivimProxyThread resmgrThread = new RegisterMultivimProxyThread(paramsMap, adapterObject);
  67                 Executors.newSingleThreadExecutor().submit(resmgrThread);
  68             } else {
  69                 LOG.error("Resmgr info is null,please check!");
  70             }
  71
  72         } catch(IOException e) {
  73             LOG.error("Failed to read Resmgr info! " + e.getMessage(), e);
  74         }
  75
  76     }
  77
  78     /**
  79      * Retrieve VIM driver information.
  80      *
  81      * @return
  82      * @throws IOException
  83      */
  84     public static String readVimAdapterInfoFromJson() throws IOException {
  85         String fileContent = "";
  86
  87         String fileName = SystemEnvVariablesFactory.getInstance().getAppRoot() + System.getProperty("file.separator")
  88                 + "etc" + System.getProperty("file.separator") + "adapterInfo" + System.getProperty("file.separator")
  89                 + RESMGRADAPTERINFO;
  90
  91         try (
  92             InputStream ins = new FileInputStream(fileName);
  93             BufferedInputStream bins = new BufferedInputStream(ins)){
  94
  95             byte[] contentByte = new byte[ins.available()];
  96             int num = bins.read(contentByte);
  97
  98             if(num > 0) {
  99                 fileContent = new String(contentByte);
 100             }
 101         } catch(FileNotFoundException e) {
 102             LOG.error(fileName + "is not found!", e);
 103         }
 104
 105         return fileContent;
 106     }
 107
 108     private static class RegisterMultivimProxyThread implements Runnable {
 109
 110         // Thread lock Object
 111         private final Object lockObject = new Object();
 112
 113         private IMultivimProxyAdapter2MSBManager adapter2MSBMgr = new MultivimProxyAdapter2MSBManager();
 114
 115         // url and mothedtype
 116         private Map<String, String> paramsMap;
 117
 118         // driver body
 119         private JSONObject adapterInfo;
 120
 121         public RegisterMultivimProxyThread(Map<String, String> paramsMap, JSONObject adapterInfo) {
 122             this.paramsMap = paramsMap;
 123             this.adapterInfo = adapterInfo;
 124         }
 125
 126         @Override
 127         public void run() {
 128             LOG.info("start register resmgr", RegisterMultivimProxyThread.class);
 129
 130             if(paramsMap == null || adapterInfo == null) {
 131                 LOG.error("parameter is null,please check!", RegisterMultivimProxyThread.class);
 132                 return;
 133             }
 134
 135             // catch Runtime Exception
 136             try {
 137                 sendRequest(paramsMap, adapterInfo);
 138             } catch(Exception e) {
 139                 LOG.error(e.getMessage(), e);
 140             }
 141
 142         }
 143
 144         private void sendRequest(Map<String, String> paramsMap, JSONObject driverInfo)throws InterruptedException {
 145             JSONObject resultObj = adapter2MSBMgr.registerProxy(paramsMap, driverInfo);
 146
 147             if(Integer.valueOf(resultObj.get("retCode").toString()) == HttpConstant.HTTP_CREATED) {
 148                 LOG.info("Resmgr has now Successfully Registered to the Microservice BUS!");
 149             } else {
 150                 LOG.error("Resmgr failed to  Register to the Microservice BUS! Reason:"
 151                         + resultObj.get("reason").toString() + " retCode:" + resultObj.get("retCode").toString());
 152
 153                 // if registration fails,wait one minute and try again
 154                 synchronized(lockObject) {
 155                         while(Integer.valueOf(resultObj.get("retCode").toString()) != Constant.HTTP_CREATED){
 156                         lockObject.wait(Constant.REPEAT_REG_TIME);
 157                         resultObj = adapter2MSBMgr.registerProxy(this.paramsMap, this.adapterInfo);
 158                         }
 159                     }
 160                 LOG.info("Resmgr has now Successfully Registered to the Microservice BUS!");
 161             }
 162
 163         }
 164
 165     }
 166
 167     @Override
 168     public void unregister() {
 169         // unregister
 170     }
 171
 172 }