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/*
* Copyright 2016 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.multivimproxy.service.adapter.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.multivimproxy.common.constant.Constant;
import org.onap.vfc.nfvo.multivimproxy.common.constant.HttpConstant;
import org.onap.vfc.nfvo.multivimproxy.common.constant.ParamConstant;
import org.onap.vfc.nfvo.multivimproxy.common.constant.UrlConstant;
import org.onap.vfc.nfvo.multivimproxy.common.util.restclient.SystemEnvVariablesFactory;
import org.onap.vfc.nfvo.multivimproxy.service.adapter.inf.IMultivimProxyAdapter2MSBManager;
import org.onap.vfc.nfvo.multivimproxy.service.adapter.inf.IMultivimProxyAdapterMgrService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import net.sf.json.JSONObject;
/**
* <br>
* <p>
* </p>
*
* @author
* @version VFC 1.0 Sep 22, 2016
*/
public class MultivimProxyAdapterMgrService implements IMultivimProxyAdapterMgrService {
private static final Logger LOG = LoggerFactory.getLogger(MultivimProxyAdapterMgrService.class);
public static final String RESMGRADAPTERINFO = "resmgradapterinfo.json";
@Override
public void register() {
// set BUS URL and mothedtype
Map<String, String> paramsMap = new HashMap<>();
paramsMap.put("url", UrlConstant.REST_MSB_REGISTER);
paramsMap.put("methodType", ParamConstant.PARAM_POST);
// get multivimproxy info and raise registration
try {
String resmgrInfo = readVimAdapterInfoFromJson();
if(!"".equals(resmgrInfo)) {
JSONObject adapterObject = JSONObject.fromObject(resmgrInfo);
RegisterMultivimProxyThread resmgrThread = new RegisterMultivimProxyThread(paramsMap, adapterObject);
Executors.newSingleThreadExecutor().submit(resmgrThread);
} else {
LOG.error("Resmgr info is null,please check!");
}
} catch(IOException e) {
LOG.error("Failed to read Resmgr info! " + e.getMessage(), e);
}
}
/**
* Retrieve VIM driver information.
*
* @return
* @throws IOException
*/
public static String readVimAdapterInfoFromJson() throws IOException {
String fileContent = "";
String fileName = SystemEnvVariablesFactory.getInstance().getAppRoot() + System.getProperty("file.separator")
+ "etc" + System.getProperty("file.separator") + "adapterInfo" + System.getProperty("file.separator")
+ RESMGRADAPTERINFO;
try (
InputStream ins = new FileInputStream(fileName);
BufferedInputStream 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);
}
return fileContent;
}
private static class RegisterMultivimProxyThread implements Runnable {
// Thread lock Object
private final Object lockObject = new Object();
private IMultivimProxyAdapter2MSBManager adapter2MSBMgr = new MultivimProxyAdapter2MSBManager();
// url and mothedtype
private Map<String, String> paramsMap;
// driver body
private JSONObject adapterInfo;
public RegisterMultivimProxyThread(Map<String, String> paramsMap, JSONObject adapterInfo) {
this.paramsMap = paramsMap;
this.adapterInfo = adapterInfo;
}
@Override
public void run() {
LOG.info("start register resmgr", RegisterMultivimProxyThread.class);
if(paramsMap == null || adapterInfo == null) {
LOG.error("parameter is null,please check!", RegisterMultivimProxyThread.class);
return;
}
// catch Runtime Exception
try {
sendRequest(paramsMap, adapterInfo);
} catch(Exception e) {
LOG.error(e.getMessage(), e);
}
}
private void sendRequest(Map<String, String> paramsMap, JSONObject driverInfo)throws InterruptedException {
JSONObject resultObj = adapter2MSBMgr.registerProxy(paramsMap, driverInfo);
if(Integer.valueOf(resultObj.get("retCode").toString()) == HttpConstant.HTTP_CREATED) {
LOG.info("Resmgr has now Successfully Registered to the Microservice BUS!");
} else {
LOG.error("Resmgr failed to Register to the Microservice BUS! Reason:"
+ resultObj.get("reason").toString() + " retCode:" + resultObj.get("retCode").toString());
// if registration fails,wait one minute and try again
synchronized(lockObject) {
while(Integer.valueOf(resultObj.get("retCode").toString()) != Constant.HTTP_CREATED){
lockObject.wait(Constant.REPEAT_REG_TIME);
resultObj = adapter2MSBMgr.registerProxy(this.paramsMap, this.adapterInfo);
}
}
LOG.info("Resmgr has now Successfully Registered to the Microservice BUS!");
}
}
}
@Override
public void unregister() {
// unregister
}
}
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