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/**
* Copyright 2019 Verizon. All Rights Reserved.
*
* 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.aai.esr.wrapper;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.core.Response;
import org.onap.aai.esr.entity.aai.EsrSystemInfo;
import org.onap.aai.esr.entity.aai.EsrNfvoDetail;
import org.onap.aai.esr.entity.aai.EsrNfvoList;
import org.onap.aai.esr.entity.rest.CommonRegisterResponse;
import org.onap.aai.esr.entity.rest.NfvoRegisterInfo;
import org.onap.aai.esr.exception.ExceptionUtil;
import org.onap.aai.esr.exception.ExtsysException;
import org.onap.aai.esr.externalservice.aai.ExternalSystemProxy;
import org.onap.aai.esr.util.NfvoManagerUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.Gson;
public class NfvoManagerWrapper {
private static NfvoManagerWrapper NfvoManagerWrapper;
private static final Logger LOG = LoggerFactory.getLogger(NfvoManagerWrapper.class);
private static NfvoManagerUtil nfvoManagerUtil = new NfvoManagerUtil();
private static ExternalSystemProxy externalSystemProxy = new ExternalSystemProxy();
/**
* get NfvoManagerWrapper instance.
*
* @return nfvo manager wrapper instance
*/
public static NfvoManagerWrapper getInstance() {
if (NfvoManagerWrapper == null) {
NfvoManagerWrapper = new NfvoManagerWrapper(externalSystemProxy);
}
return NfvoManagerWrapper;
}
public NfvoManagerWrapper(ExternalSystemProxy externalSystemProxy){
NfvoManagerWrapper.externalSystemProxy = externalSystemProxy;
}
public Response registerNfvo(NfvoRegisterInfo nfvo) {
CommonRegisterResponse result = new CommonRegisterResponse();
EsrNfvoDetail esrNfvoDetail = nfvoManagerUtil.nfvoRegisterInfo2EsrNfvo(nfvo);
String nfvoId = esrNfvoDetail.getNfvoId();
try {
externalSystemProxy.registerNfvo(nfvoId, esrNfvoDetail);
result.setId(nfvoId);
return Response.ok(result).build();
} catch (ExtsysException e) {
LOG.error("Register NFVO failed !", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
public Response updateNfvo(NfvoRegisterInfo nfvo, String nfvoId) {
CommonRegisterResponse result = new CommonRegisterResponse();
EsrNfvoDetail originalEsrNfvoDetail = queryEsrNfvoDetail(nfvoId);
EsrNfvoDetail esrNfvoDetail = nfvoManagerUtil.nfvoRegisterInfo2EsrNfvo(nfvo);
String resourceVersion = getResourceVersion(nfvoId);
esrNfvoDetail.setResourceVersion(resourceVersion);
esrNfvoDetail.setNfvoId(nfvoId);
EsrSystemInfo originalEsrSystemInfo = originalEsrNfvoDetail.getEsrSystemInfoList().getEsrSystemInfo().get(0);
esrNfvoDetail.getEsrSystemInfoList().getEsrSystemInfo().get(0)
.setEsrSystemInfoId(originalEsrSystemInfo.getEsrSystemInfoId());
esrNfvoDetail.getEsrSystemInfoList().getEsrSystemInfo().get(0)
.setResouceVersion(originalEsrSystemInfo.getResouceVersion());
try {
externalSystemProxy.registerNfvo(nfvoId, esrNfvoDetail);
result.setId(nfvoId);
return Response.ok(result).build();
} catch (ExtsysException e) {
LOG.error("Update NFVO failed !", e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
public Response queryNfvoList() {
List<NfvoRegisterInfo> nfvoList = new ArrayList<>();
EsrNfvoList esrNfvo = new EsrNfvoList();
try {
String esrNfvoStr = externalSystemProxy.queryNfvoList();
esrNfvo = new Gson().fromJson(esrNfvoStr, EsrNfvoList.class);
LOG.info("Response from AAI by query NFVO list: " + esrNfvo);
nfvoList = getNfvoDetailList(esrNfvo);
return Response.ok(nfvoList).build();
} catch (ExtsysException e) {
LOG.error("Query NFVO list failed !", e);
return Response.ok(nfvoList).build();
}
}
public Response queryNfvoById(String nfvoId) {
NfvoRegisterInfo nfvo = queryNfvoDetail(nfvoId);
if (nfvo != null) {
return Response.ok(nfvo).build();
} else {
return Response.ok(nfvo).build();
}
}
public Response delNfvo(String nfvoId) {
String resourceVersion = getResourceVersion(nfvoId);
try {
externalSystemProxy.deleteNfvo(nfvoId, resourceVersion);
return Response.noContent().build();
} catch (ExtsysException e) {
LOG.error("Delete NFVO from A&AI failed! NFVO ID: " + nfvoId + "resouce-version:" + resourceVersion, e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
}
private NfvoRegisterInfo queryNfvoDetail(String nfvoId) {
NfvoRegisterInfo nfvo = new NfvoRegisterInfo();
EsrNfvoDetail esrNfvoDetail = new EsrNfvoDetail();
try {
String esrNfvostr = externalSystemProxy.queryNfvoDetail(nfvoId);
LOG.info("Response from AAI by query NFVO: " + esrNfvostr);
esrNfvoDetail = new Gson().fromJson(esrNfvostr, EsrNfvoDetail.class);
nfvo = nfvoManagerUtil.esrNfvo2NfvoRegisterInfo(esrNfvoDetail);
} catch (ExtsysException e) {
LOG.error("Query NFVO detail failed! NFVO ID: " + nfvoId, e);
}
return nfvo;
}
private List<NfvoRegisterInfo> getNfvoDetailList(EsrNfvoList esrNfvo) {
List<NfvoRegisterInfo> nfvoInfoList = new ArrayList<>();
for (int i = 0; i < esrNfvo.getEsrNfvo().size(); i++) {
String nfvoId = esrNfvo.getEsrNfvo().get(i).getNfvoId();
NfvoRegisterInfo nfvoInfo = queryNfvoDetail(nfvoId);
if (nfvoInfo != null) {
nfvoInfoList.add(nfvoInfo);
}
}
return nfvoInfoList;
}
private String getResourceVersion(String nfvoId) {
String resourceVersion = null;
EsrNfvoDetail esrNfvoDetail = queryEsrNfvoDetail(nfvoId);
if (esrNfvoDetail != null && esrNfvoDetail.getResourceVersion() != null) {
resourceVersion = esrNfvoDetail.getResourceVersion();
}
return resourceVersion;
}
private EsrNfvoDetail queryEsrNfvoDetail(String nfvoId) {
EsrNfvoDetail esrNfvoDetail = new EsrNfvoDetail();
try {
String esrNfvostr = externalSystemProxy.queryNfvoDetail(nfvoId);
LOG.info("Response from AAI by query NFVO: " + esrNfvostr);
esrNfvoDetail = new Gson().fromJson(esrNfvostr, EsrNfvoDetail.class);
} catch (ExtsysException e) {
LOG.error("Query NFVO detail failed! NFVO ID: " + nfvoId, e);
throw ExceptionUtil.buildExceptionResponse(e.getMessage());
}
return esrNfvoDetail;
}
}
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