1 files changed, 194 insertions, 0 deletions
diff --git a/so-etsi-sol003-adapter-lcm/so-etsi-sol003-adapter-lcm-service/src/main/java/org/onap/so/adapters/etsisol003adapter/lcm/extclients/vnfm/VnfmServiceProviderImpl.java b/so-etsi-sol003-adapter-lcm/so-etsi-sol003-adapter-lcm-service/src/main/java/org/onap/so/adapters/etsisol003adapter/lcm/extclients/vnfm/VnfmServiceProviderImpl.java
new file mode 100644
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--- /dev/null
+++ b/so-etsi-sol003-adapter-lcm/so-etsi-sol003-adapter-lcm-service/src/main/java/org/onap/so/adapters/etsisol003adapter/lcm/extclients/vnfm/VnfmServiceProviderImpl.java
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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);
+    }
+
+}