huawei/vnfmadapter/VnfmadapterService/service/src/main/java/org/onap/vfc/nfvo/vnfm/svnfm/vnfmadapter/service/api/internalsvc/impl/VnfmAdapter2DriverMgrService.java

   1 /*
   2  * Copyright 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.common.restclient.SystemEnvVariablesFactory;
  29 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.impl.VnfmAdapter2DriverManager;
  30 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.inf.IVnfmAdapter2DriverManager;
  31 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.api.internalsvc.inf.IVnfmAdapter2DriverMgrService;
  32 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.Constant;
  33 import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.UrlConstant;
  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 VFC 1.0 Jan 23, 2017
  46  */
  47 public class VnfmAdapter2DriverMgrService implements IVnfmAdapter2DriverMgrService {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(VnfmAdapter2DriverMgrService.class);
  50
  51     public static final String VNFMADAPTER2DRIVERMGR = "vnfmadapter2drivermgr.json";
  52
  53     @Override
  54     public void register() {
  55         // set URL and mothedtype
  56         Map<String, String> paramsMap = new HashMap<>();
  57         paramsMap.put("url", UrlConstant.REST_DRIVERMGR_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                 RegisterVnfm2DriverMgrThread vnfmAdapterThread =
  66                         new RegisterVnfm2DriverMgrThread(paramsMap, adapterObject);
  67                 Executors.newSingleThreadExecutor().submit(vnfmAdapterThread);
  68             } else {
  69                 LOG.error("vnfmadapter2drivermgr info is null,please check!");
  70             }
  71
  72         } catch(IOException e) {
  73             LOG.error("Failed to read vnfmadapter2drivermgr 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 readVnfmAdapterInfoFromJson() throws IOException {
  85         String fileContent = "";
  86
  87         String fileName = SystemEnvVariablesFactory.getInstance().getAppRoot()
  88                 + System.getProperty(Constant.FILE_SEPARATOR) + "etc" + System.getProperty(Constant.FILE_SEPARATOR)
  89                 + "adapterInfo" + System.getProperty(Constant.FILE_SEPARATOR) + VNFMADAPTER2DRIVERMGR;
  90
  91         try (InputStream ins = new FileInputStream(fileName)){
  92             try(BufferedInputStream bins = new BufferedInputStream(ins)){
  93
  94                 byte[] contentByte = new byte[ins.available()];
  95                 int num = bins.read(contentByte);
  96
  97                 if(num > 0) {
  98                     fileContent = new String(contentByte);
  99                 }
 100             }
 101         } catch(FileNotFoundException e) {
 102             LOG.error(fileName + "is not found!", e);
 103         }
 104
 105         return fileContent;
 106     }
 107
 108     private static class RegisterVnfm2DriverMgrThread implements Runnable {
 109
 110         private IVnfmAdapter2DriverManager adapter2DriverMgr = new VnfmAdapter2DriverManager();
 111
 112         // url and mothedtype
 113         private Map<String, String> paramsMap;
 114
 115         // driver body
 116         private JSONObject adapterInfo;
 117
 118         public RegisterVnfm2DriverMgrThread(Map<String, String> paramsMap, JSONObject adapterInfo) {
 119             this.paramsMap = paramsMap;
 120             this.adapterInfo = adapterInfo;
 121         }
 122
 123         @Override
 124         public void run() {
 125             LOG.info("start register vnfmadapter to Driver Manager", RegisterVnfm2DriverMgrThread.class);
 126
 127             if(paramsMap == null || adapterInfo == null) {
 128                 LOG.error("parameter is null,please check!", RegisterVnfm2DriverMgrThread.class);
 129                 return;
 130             }
 131
 132             // catch Runtime Exception
 133             try {
 134                 sendRequest(paramsMap, adapterInfo);
 135             } catch(RuntimeException e) {
 136                 LOG.error(e.getMessage(), e);
 137             }
 138
 139         }
 140
 141         private void sendRequest(Map<String, String> paramsMap, JSONObject driverInfo) {
 142             JSONObject resultObj = adapter2DriverMgr.registerDriver(paramsMap, driverInfo);
 143
 144             if(Integer.valueOf(resultObj.get(Constant.RETCODE).toString()) == Constant.HTTP_CREATED) {
 145                 LOG.info("Vnfmadapter has now Successfully Registered to the Driver Manager!");
 146             } else {
 147                 LOG.error("Vnfmadapter failed to  Register to the Driver Manager! Reason:"
 148                         + resultObj.get(Constant.REASON).toString() + " retCode:"
 149                         + resultObj.get(Constant.RETCODE).toString());
 150
 151                 // if registration fails,wait one minute and try again
 152                 try {
 153                     Thread.sleep(Constant.REPEAT_REG_TIME);
 154                 } catch(InterruptedException e) {
 155                     LOG.error(e.getMessage(), e);
 156                     // Restore interrupted state...
 157                     Thread.currentThread().interrupt();
 158                 }
 159
 160                 sendRequest(this.paramsMap, this.adapterInfo);
 161             }
 162
 163         }
 164
 165     }
 166
 167     @Override
 168     public void unregister() {
 169         // unregister
 170     }
 171
 172 }