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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm;
import org.onap.aai.domain.yang.EsrVnfm;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.CreateVnfRequest;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.InlineResponse200;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.InlineResponse2001;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.InlineResponse201;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.InlineResponse201.InstantiationStateEnum;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.InstantiateVnfRequest;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.LccnSubscriptionRequest;
import org.onap.so.adapters.etsisol003adapter.lcm.extclients.vnfm.model.TerminateVnfRequest;
import org.onap.so.adapters.etsisol003adapter.lcm.jobmanagement.JobManager;
import org.onap.so.adapters.etsisol003adapter.lcm.rest.exceptions.VnfmRequestFailureException;
import org.onap.so.rest.exceptions.RestProcessingException;
import org.onap.so.rest.service.HttpRestServiceProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import com.google.common.base.Optional;
@Service
public class VnfmServiceProviderImpl implements VnfmServiceProvider {
private static final Logger logger = LoggerFactory.getLogger(VnfmServiceProviderImpl.class);
private final VnfmServiceProviderConfiguration vnfmServiceProviderConfiguration;
private final VnfmUrlProvider urlProvider;
@Autowired
public VnfmServiceProviderImpl(final VnfmUrlProvider urlProvider,
final VnfmServiceProviderConfiguration vnfmServiceProviderConfiguration) {
this.vnfmServiceProviderConfiguration = vnfmServiceProviderConfiguration;
this.urlProvider = urlProvider;
}
@Override
public Optional<InlineResponse201> getVnf(final EsrVnfm vnfm, final String vnfSelfLink) {
return getHttpServiceProvider(vnfm).get(vnfSelfLink, InlineResponse201.class);
}
@Override
public String instantiateVnf(final EsrVnfm vnfm, final String vnfSelfLink,
final InstantiateVnfRequest instantiateVnfRequest) {
logger.debug("Sending instantiate request " + instantiateVnfRequest + " to : " + vnfSelfLink);
ResponseEntity<Void> response = null;
try {
response = getHttpServiceProvider(vnfm).postHttpRequest(instantiateVnfRequest, vnfSelfLink + "/instantiate",
Void.class);
} catch (final Exception exception) {
final String errorMessage =
"Instantiate request to " + vnfSelfLink + " resulted in exception" + instantiateVnfRequest;
logger.error(errorMessage, exception);
throw new VnfmRequestFailureException(errorMessage, exception);
}
if (response.getStatusCode() != HttpStatus.ACCEPTED) {
final String errorMessage = "Instantiate request to " + vnfSelfLink + " returned status code: "
+ response.getStatusCode() + ", request: " + instantiateVnfRequest;
logger.error(errorMessage);
throw new VnfmRequestFailureException(errorMessage);
}
final String locationHeader = response.getHeaders().get("Location").iterator().next();
return locationHeader.substring(locationHeader.lastIndexOf("/") + 1);
}
@Override
public InlineResponse2001 subscribeForNotifications(final EsrVnfm vnfm,
final LccnSubscriptionRequest subscriptionRequest) {
logger.info("Subscribing for notifications {}", subscriptionRequest);
final String url = urlProvider.getSubscriptionsUrl(vnfm.getVnfmId());
ResponseEntity<InlineResponse2001> response = null;
try {
response = getHttpServiceProvider(vnfm).postHttpRequest(subscriptionRequest, url, InlineResponse2001.class);
logger.info("Subscribing for notifications response {}", response);
} catch (final Exception exception) {
final String errorMessage =
"Subscription to VNFM " + vnfm.getVnfmId() + " resulted in exception" + subscriptionRequest;
logger.error(errorMessage, exception);
throw new VnfmRequestFailureException(errorMessage, exception);
}
if (response.getStatusCode() != HttpStatus.CREATED) {
final String errorMessage = "Subscription to VNFM " + vnfm.getVnfmId() + " returned status code: "
+ response.getStatusCode() + ", request: " + subscriptionRequest;
logger.error(errorMessage);
throw new VnfmRequestFailureException(errorMessage);
}
return response.getBody();
}
@Override
public String terminateVnf(final EsrVnfm vnfm, final String vnfSelfLink,
final TerminateVnfRequest terminateVnfRequest) {
logger.debug("Sending terminate request " + terminateVnfRequest + " to : " + vnfSelfLink);
ResponseEntity<Void> response = null;
try {
response = getHttpServiceProvider(vnfm).postHttpRequest(terminateVnfRequest, vnfSelfLink + "/terminate",
Void.class);
} catch (final RestProcessingException restProcessingException) {
if (restProcessingException.getStatusCode() == HttpStatus.CONFLICT.value()) {
final InlineResponse201 vnf = getVnf(vnfm, vnfSelfLink).get();
if (vnf.getInstantiationState().equals(InstantiationStateEnum.NOT_INSTANTIATED)) {
return JobManager.ALREADY_COMPLETED_OPERATION_ID;
} else {
final String errorMessage =
"Terminate request to " + vnfSelfLink + " resulted in exception" + terminateVnfRequest;
logger.error(errorMessage, restProcessingException);
throw new VnfmRequestFailureException(errorMessage, restProcessingException);
}
}
} catch (final Exception exception) {
final String errorMessage =
"Terminate request to " + vnfSelfLink + " resulted in exception" + terminateVnfRequest;
logger.error(errorMessage, exception);
throw new VnfmRequestFailureException(errorMessage, exception);
}
checkIfResponseIsAcceptable(response, vnfSelfLink, terminateVnfRequest);
final String locationHeader = response.getHeaders().get("Location").iterator().next();
return locationHeader.substring(locationHeader.lastIndexOf("/") + 1);
}
@Override
public void deleteVnf(final EsrVnfm vnfm, final String vnfSelfLink) {
logger.debug("Sending delete request to : " + vnfSelfLink);
final ResponseEntity<Void> response = getHttpServiceProvider(vnfm).deleteHttpRequest(vnfSelfLink, Void.class);
if (response.getStatusCode() != HttpStatus.NO_CONTENT) {
throw new VnfmRequestFailureException(
"Delete request to " + vnfSelfLink + " return status code: " + response.getStatusCode());
}
}
@Override
public Optional<InlineResponse200> getOperation(final EsrVnfm vnfm, final String operationId) {
final String url = urlProvider.getOperationUrl(vnfm.getVnfmId(), operationId);
return getHttpServiceProvider(vnfm).get(url, InlineResponse200.class);
}
@Override
public Optional<InlineResponse201> createVnf(final EsrVnfm vnfm, final CreateVnfRequest createVnfRequest) {
final String url = urlProvider.getCreationUrl(vnfm.getVnfmId());
logger.debug("Sending create request {} to : {}", createVnfRequest, url);
try {
return getHttpServiceProvider(vnfm).post(createVnfRequest, url, InlineResponse201.class);
} catch (final Exception exception) {
final String errorMessage =
"Create request to vnfm:" + vnfm.getVnfmId() + " resulted in exception" + createVnfRequest;
logger.error(errorMessage, exception);
throw new VnfmRequestFailureException(errorMessage, exception);
}
}
private void checkIfResponseIsAcceptable(final ResponseEntity<Void> response, final String vnfSelfLink,
final TerminateVnfRequest terminateVnfRequest) {
if (response == null) {
final String errorMessage =
"Terminate request to " + vnfSelfLink + ", response is null, " + "request: " + terminateVnfRequest;
logger.error(errorMessage);
throw new VnfmRequestFailureException(errorMessage);
}
if (response.getStatusCode() != HttpStatus.ACCEPTED) {
final String errorMessage = "Terminate request to " + vnfSelfLink + ", returned status code: "
+ response.getStatusCode() + ", request: " + terminateVnfRequest;
logger.error(errorMessage);
throw new VnfmRequestFailureException(errorMessage);
}
}
private HttpRestServiceProvider getHttpServiceProvider(final EsrVnfm vnfm) {
return vnfmServiceProviderConfiguration.getHttpRestServiceProvider(vnfm);
}
}
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