huawei/vnfmadapter/VnfmadapterService/service/src/main/java/org/onap/vfc/nfvo/vnfm/svnfm/vnfmadapter/service/api/internalsvc/impl/VnfmAdapterMgrService.java

   1 /*
   2  * Copyright 2016-2017 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.vnfm.svnfm.vnfmadapter.service.api.internalsvc.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.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.impl.Driver2MSBManager;
  29 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.inf.IDriver2MSBManager;
  30 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.api.internalsvc.inf.IVnfmAdapterMgrService;
  31 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.Constant;
  32 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.UrlConstant;
  33 import org.openo.baseservice.util.impl.SystemEnvVariablesFactory;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 import net.sf.json.JSONObject;
  38
  39 /**
  40  * <br/>
  41  * <p>
  42  * </p>
  43  *
  44  * @author
  45  * @version NFVO 0.5 Aug 31, 2016
  46  */
  47 public class VnfmAdapterMgrService implements IVnfmAdapterMgrService {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(VnfmAdapterMgrService.class);
  50
  51     public static final String VNFMADAPTERINFO = "vnfmadapterinfo.json";
  52
  53     @Override
  54     public void register() {
  55         // set BUS URL and mothedtype
  56         Map<String, String> paramsMap = new HashMap<>();
  57         paramsMap.put("url", UrlConstant.REST_MSB_REGISTER);
  58         paramsMap.put("methodType", Constant.POST);
  59
  60         // get vim adapter info and raise registration
  61         try {
  62             String adapterInfo = readVnfmAdapterInfoFromJson();
  63             if(!"".equals(adapterInfo)) {
  64                 JSONObject adapterObject = JSONObject.fromObject(adapterInfo);
  65                 RegisterVnfmAdapterThread vnfmAdapterThread = new RegisterVnfmAdapterThread(paramsMap, adapterObject);
  66                 Executors.newSingleThreadExecutor().submit(vnfmAdapterThread);
  67             } else {
  68                 LOG.error("VnfmAdapter info is null,please check!");
  69             }
  70
  71         } catch(IOException e) {
  72             LOG.error("Failed to read VnfmAdapter info! " + e.getMessage(), e);
  73         }
  74
  75     }
  76
  77     /**
  78      * Retrieve VIM driver information.
  79      * @return
  80      * @throws IOException
  81      */
  82     public  String readVnfmAdapterInfoFromJson() throws IOException {
  83         InputStream ins = null;
  84         BufferedInputStream bins = null;
  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                 + VNFMADAPTERINFO;
  90
  91         try {
  92             ins = new FileInputStream(fileName);
  93             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         } finally {
 104             if (ins != null) {
 105                 ins.close();
 106             }
 107             if (bins != null) {
 108                 bins.close();
 109             }
 110         }
 111
 112         return fileContent;
 113     }
 114
 115     private static class RegisterVnfmAdapterThread implements Runnable {
 116
 117         // Thread lock Object
 118         private final Object lockObject = new Object();
 119
 120         private IDriver2MSBManager adapter2MSBMgr = new Driver2MSBManager();
 121
 122         // url and mothedtype
 123         private Map<String, String> paramsMap;
 124
 125         // driver body
 126         private JSONObject adapterInfo;
 127
 128         public RegisterVnfmAdapterThread(Map<String, String> paramsMap, JSONObject adapterInfo) {
 129             this.paramsMap = paramsMap;
 130             this.adapterInfo = adapterInfo;
 131         }
 132
 133         @Override
 134         public void run() {
 135             LOG.info("start register vnfmadapter", RegisterVnfmAdapterThread.class);
 136
 137             if(paramsMap == null || adapterInfo == null) {
 138                 LOG.error("parameter is null,please check!", RegisterVnfmAdapterThread.class);
 139                 return;
 140             }
 141
 142             // catch Runtime Exception
 143             try {
 144                 sendRequest(paramsMap, adapterInfo);
 145             } catch(RuntimeException e) {
 146                 LOG.error(e.getMessage(), e);
 147             }
 148
 149         }
 150
 151         private void sendRequest(Map<String, String> paramsMap, JSONObject driverInfo) {
 152             JSONObject resultObj = adapter2MSBMgr.registerDriver(paramsMap, driverInfo);
 153
 154             if(Integer.valueOf(resultObj.get("retCode").toString()) == Constant.HTTP_CREATED) {
 155                 LOG.info("Vnfmadapter has now Successfully Registered to the Microservice BUS!");
 156             } else {
 157                 LOG.error("Vnfmadapter failed to  Register to the Microservice BUS! Reason:"
 158                         + resultObj.get("reason").toString() + " retCode:" + resultObj.get("retCode").toString());
 159
 160                 // if registration fails,wait one minute and try again
 161                 try {
 162                     synchronized(lockObject) {
 163                         lockObject.wait(Constant.REPEAT_REG_TIME);
 164                     }
 165                 } catch(InterruptedException e) {
 166                     LOG.error(e.getMessage(), e);
 167                 }
 168
 169                 sendRequest(this.paramsMap, this.adapterInfo);
 170             }
 171
 172         }
 173
 174     }
 175
 176     @Override
 177     public void unregister() {
 178         //unregister
 179     }
 180
 181 }