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/*
* Copyright 2016-2017, Nokia Corporation
*
* 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.driver.vnfm.svnfm.msb.impl;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.json.JSONException;
import org.json.JSONObject;
import org.onap.msb.sdk.discovery.common.RouteException;
import org.onap.msb.sdk.discovery.entity.MicroServiceFullInfo;
import org.onap.msb.sdk.discovery.entity.MicroServiceInfo;
import org.onap.msb.sdk.discovery.entity.RouteResult;
import org.onap.msb.sdk.httpclient.msb.MSBServiceClient;
import org.onap.vfc.nfvo.driver.vnfm.svnfm.msb.inf.IMsbMgmr;
import org.springframework.stereotype.Component;
import com.google.gson.Gson;
@Component
public class MsbMgmrImpl implements IMsbMgmr {
private static final Logger logger = LoggerFactory.getLogger(MsbMgmrImpl.class);
private Gson gson = new Gson();
private String msb_ip;
private int msb_port;
@Override
public void register() {
try {
String msbInfoJsonStr = readMsbInfoFromJsonFile();
JSONObject totalJsonObj = new JSONObject(msbInfoJsonStr);
JSONObject serverJsonObj = totalJsonObj.getJSONObject("defaultServer");
msb_ip = serverJsonObj.getString("host");
msb_port = serverJsonObj.getInt("port");
String vfcAdaptorInfoJsonStr = readVfcAdaptorInfoFromJsonFile();
MicroServiceInfo msinfo = gson.fromJson(vfcAdaptorInfoJsonStr, MicroServiceInfo.class);
MSBServiceClient msbClient = new MSBServiceClient(msb_ip, msb_port);
MicroServiceFullInfo microServiceInfo = msbClient.registerMicroServiceInfo(msinfo);
logger.info("Registered service response info is " + microServiceInfo.toString());
} catch (IOException e) {
logger.error("Failed to read vfcadaptor info! ", e);
} catch (RouteException e) {
logger.error("Failed to register nokia vnfm driver! ", e);
} catch (JSONException e) {
logger.error("Failed to retrieve json info! ", e);
}
}
private String readMsbInfoFromJsonFile() throws IOException {
String filePath = "/etc/conf/restclient.json";
String fileContent = getJsonStrFromFile(filePath);
return fileContent;
}
private String readVfcAdaptorInfoFromJsonFile() throws IOException {
String filePath = "/etc/adapterInfo/vnfmadapterinfo.json";
String fileContent = getJsonStrFromFile(filePath);
return fileContent;
}
public String getJsonStrFromFile(String filePath) throws IOException {
InputStream ins = null;
BufferedInputStream bins = null;
String fileContent = "";
String fileName = getAppRoot() + filePath;
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) {
logger.error(fileName + "is not found!", e);
} finally {
if(ins != null) {
ins.close();
}
if(bins != null) {
bins.close();
}
}
return fileContent;
}
@Override
public void unregister() {
try {
String jsonStr = readVfcAdaptorInfoFromJsonFile();
MicroServiceInfo msinfo = gson.fromJson(jsonStr, MicroServiceInfo.class);
MSBServiceClient msbClient = new MSBServiceClient(msb_ip, msb_port);
RouteResult routeResult = msbClient.cancelMicroServiceInfo(msinfo.getServiceName(), msinfo.getVersion());
logger.info("unregistered service response info is " + routeResult.toString());
} catch (IOException e) {
logger.error("Failed to read vfcadaptor info! ", e);
} catch (RouteException e) {
logger.error("Failed to register nokia vnfm driver! ", e);
}
}
public String getAppRoot() {
String appRoot = null;
appRoot = System.getProperty("catalina.base");
if(appRoot != null) {
appRoot = getCanonicalPath(appRoot);
}
return appRoot;
}
private String getCanonicalPath(final String inPath) {
String path = null;
try {
if(inPath != null) {
final File file = new File(inPath);
path = file.getCanonicalPath();
}
} catch(final IOException e) {
logger.error("file.getCanonicalPath() IOException:", e);
}
return path;
}
}
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