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/*
* Copyright 2017 Huawei Technologies Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.api.internalsvc.impl;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Executors;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.common.restclient.SystemEnvVariablesFactory;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.impl.VnfmAdapter2DriverManager;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.adapter.inf.IVnfmAdapter2DriverManager;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.api.internalsvc.inf.IVnfmAdapter2DriverMgrService;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.Constant;
import org.onap.vfc.nfvo.vnfm.svnfm.vnfmadapter.service.constant.UrlConstant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import net.sf.json.JSONObject;
/**
* <br>
* <p>
* </p>
*
* @author
* @version VFC 1.0 Jan 23, 2017
*/
public class VnfmAdapter2DriverMgrService implements IVnfmAdapter2DriverMgrService {
private static final Logger LOG = LoggerFactory.getLogger(VnfmAdapter2DriverMgrService.class);
public static final String VNFMADAPTER2DRIVERMGR = "vnfmadapter2drivermgr.json";
@Override
public void register() {
// set URL and mothedtype
Map<String, String> paramsMap = new HashMap<>();
paramsMap.put("url", UrlConstant.REST_DRIVERMGR_REGISTER);
paramsMap.put("methodType", Constant.POST);
// get vim adapter info and raise registration
try {
String adapterInfo = readVnfmAdapterInfoFromJson();
if(!"".equals(adapterInfo)) {
JSONObject adapterObject = JSONObject.fromObject(adapterInfo);
RegisterVnfm2DriverMgrThread vnfmAdapterThread =
new RegisterVnfm2DriverMgrThread(paramsMap, adapterObject);
Executors.newSingleThreadExecutor().submit(vnfmAdapterThread);
} else {
LOG.error("vnfmadapter2drivermgr info is null,please check!");
}
} catch(IOException e) {
LOG.error("Failed to read vnfmadapter2drivermgr info! " + e.getMessage(), e);
}
}
/**
* Retrieve VIM driver information.
*
* @return
* @throws IOException
*/
public static String readVnfmAdapterInfoFromJson() throws IOException {
InputStream ins = null;
BufferedInputStream bins = null;
String fileContent = "";
String fileName = SystemEnvVariablesFactory.getInstance().getAppRoot()
+ System.getProperty(Constant.FILE_SEPARATOR) + "etc" + System.getProperty(Constant.FILE_SEPARATOR)
+ "adapterInfo" + System.getProperty(Constant.FILE_SEPARATOR) + VNFMADAPTER2DRIVERMGR;
try {
ins = new FileInputStream(fileName);
bins = new BufferedInputStream(ins);
byte[] contentByte = new byte[ins.available()];
int num = bins.read(contentByte);
if(num > 0) {
fileContent = new String(contentByte);
}
} catch(FileNotFoundException e) {
LOG.error(fileName + "is not found!", e);
} finally {
if(ins != null) {
ins.close();
}
if(bins != null) {
bins.close();
}
}
return fileContent;
}
private static class RegisterVnfm2DriverMgrThread implements Runnable {
// Thread lock Object
private final Object lockObject = new Object();
private IVnfmAdapter2DriverManager adapter2DriverMgr = new VnfmAdapter2DriverManager();
// url and mothedtype
private Map<String, String> paramsMap;
// driver body
private JSONObject adapterInfo;
public RegisterVnfm2DriverMgrThread(Map<String, String> paramsMap, JSONObject adapterInfo) {
this.paramsMap = paramsMap;
this.adapterInfo = adapterInfo;
}
@Override
public void run() {
LOG.info("start register vnfmadapter to Driver Manager", RegisterVnfm2DriverMgrThread.class);
if(paramsMap == null || adapterInfo == null) {
LOG.error("parameter is null,please check!", RegisterVnfm2DriverMgrThread.class);
return;
}
// catch Runtime Exception
try {
sendRequest(paramsMap, adapterInfo);
} catch(RuntimeException e) {
LOG.error(e.getMessage(), e);
}
}
private void sendRequest(Map<String, String> paramsMap, JSONObject driverInfo) {
JSONObject resultObj = adapter2DriverMgr.registerDriver(paramsMap, driverInfo);
if(Integer.valueOf(resultObj.get(Constant.RETCODE).toString()) == Constant.HTTP_CREATED) {
LOG.info("Vnfmadapter has now Successfully Registered to the Driver Manager!");
} else {
LOG.error("Vnfmadapter failed to Register to the Driver Manager! Reason:"
+ resultObj.get(Constant.REASON).toString() + " retCode:"
+ resultObj.get(Constant.RETCODE).toString());
// if registration fails,wait one minute and try again
try {
synchronized(lockObject) {
lockObject.wait(Constant.REPEAT_REG_TIME);
}
} catch(InterruptedException e) {
LOG.error(e.getMessage(), e);
}
sendRequest(this.paramsMap, this.adapterInfo);
}
}
}
@Override
public void unregister() {
// unregister
}
}
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