1 files changed, 180 insertions, 0 deletions
diff --git a/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/tasks/TerminateVnfTask.java b/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/tasks/TerminateVnfTask.java
new file mode 100644
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+++ b/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/tasks/TerminateVnfTask.java
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+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2020 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.etsi.nfvo.ns.lcm.bpmn.flows.tasks;
+
+import static org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.CamundaVariableNameConstants.DELETE_VNF_RESPONSE_PARAM_NAME;
+import static org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.CamundaVariableNameConstants.NF_INST_ID_PARAM_NAME;
+import static org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.CamundaVariableNameConstants.TERMINATE_VNF_VNFID_PARAM_NAME;
+import static org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum.ERROR;
+import static org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum.FINISHED;
+import static org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum.IN_PROGRESS;
+import java.util.Optional;
+import org.camunda.bpm.engine.delegate.DelegateExecution;
+import org.onap.so.adapters.etsisol003adapter.lcm.v1.model.DeleteVnfResponse;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.extclients.aai.AaiServiceProvider;
+import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.extclients.vnfm.Sol003AdapterServiceProvider;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.JobStatusEnum;
+import org.onap.so.etsi.nfvo.ns.lcm.database.beans.State;
+import org.onap.so.etsi.nfvo.ns.lcm.database.service.DatabaseServiceProvider;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author Andrew Lamb (andrew.a.lamb@est.tech)
+ */
+@Component
+public class TerminateVnfTask extends AbstractNetworkServiceTask {
+    private static final Logger logger = LoggerFactory.getLogger(TerminateVnfTask.class);
+    private final AaiServiceProvider aaiServiceProvider;
+    private final Sol003AdapterServiceProvider sol003AdapterServiceProvider;
+
+    @Autowired
+    public TerminateVnfTask(final DatabaseServiceProvider databaseServiceProvider,
+            final AaiServiceProvider aaiServiceProvider,
+            final Sol003AdapterServiceProvider sol003AdapterServiceProvider) {
+        super(databaseServiceProvider);
+        this.aaiServiceProvider = aaiServiceProvider;
+        this.sol003AdapterServiceProvider = sol003AdapterServiceProvider;
+    }
+
+    public void checkIfNfInstanceExistsInDb(final DelegateExecution execution) {
+        logger.info("Executing checkIfNfInstanceInDb");
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+        logger.info("vnfId: {}", vnfId);
+        execution.setVariable(NF_INST_ID_PARAM_NAME, vnfId);
+
+        addJobStatus(execution, JobStatusEnum.IN_PROGRESS,
+                "Checking if VNF Instance with id: " + vnfId + " exists in database.");
+        if (!databaseServiceProvider.isNfInstExists(vnfId)) {
+            abortOperation(execution,
+                    "VNF instance with id: " + vnfId + " does not exist in database, so will not be terminated.");
+        }
+        logger.info("Finished executing checkIfNfInstanceInDb  ...");
+
+    }
+
+    public void invokeTerminateRequest(final DelegateExecution execution) {
+        logger.info("Executing invokeTerminateRequest");
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+
+        try {
+            addJobStatus(execution, IN_PROGRESS, "Invoking SOL003 adapter for terminating VNF with vnfId: " + vnfId);
+
+            final Optional<DeleteVnfResponse> optional = sol003AdapterServiceProvider.invokeTerminationRequest(vnfId);
+
+            if (optional.isEmpty()) {
+                final String errorMessage = "Unexpected error while processing terminate request for vnfId: " + vnfId;
+                logger.error(errorMessage);
+                abortOperation(execution, errorMessage);
+            }
+
+            final DeleteVnfResponse vnfResponse = optional.get();
+
+            logger.info("Vnf delete response: {}", vnfResponse);
+            execution.setVariable(DELETE_VNF_RESPONSE_PARAM_NAME, vnfResponse);
+            addJobStatus(execution, IN_PROGRESS, "Successfully invoked SOL003 adapter terminate VNF with vnfId: "
+                    + vnfId + " DeleteVnfResponse Job Id: " + vnfResponse.getJobId());
+            logger.debug("Finished executing invokeTerminateRequest ...");
+        } catch (final Exception exception) {
+            final String message = "Unable to invoke terminate request for vnfId: " + vnfId;
+            logger.error(message, exception);
+            abortOperation(execution, message);
+        }
+
+    }
+
+    public void deleteGenericVnfFromAai(final DelegateExecution execution) {
+        logger.info("Executing deleteGenericVnfFromAai");
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+
+        try {
+            addJobStatus(execution, IN_PROGRESS, "Deleting GenericVnf record from AAI for vnfId: " + vnfId);
+            aaiServiceProvider.deleteGenericVnf(vnfId);
+
+        } catch (final Exception exception) {
+            final String message = "Unable to Delete GenericVnf from AAI for vnfId: " + vnfId;
+            logger.error(message, exception);
+            abortOperation(execution, message);
+        }
+
+        logger.info("Finished executing deleteGenericVnfFromAai ...");
+    }
+
+    public void deleteNfInstanceFromDb(final DelegateExecution execution) {
+        logger.info("Executing deleteNfInstanceFromDb");
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+
+        addJobStatus(execution, IN_PROGRESS, "Deleting NF Instance record from Database for vnfId: " + vnfId);
+        databaseServiceProvider.deleteNfvoNfInst(vnfId);
+
+        addJobStatus(execution, FINISHED, "Successfully finished terminating VNF with vnfId: " + vnfId);
+        logger.info("Finished executing deleteNfInstanceFromDb ...");
+    }
+
+    public void updateNfInstanceStatusToTerminating(final DelegateExecution execution) {
+        logger.info("Executing updateNfInstanceStatusToTerminating");
+
+        updateNfInstanceStatus(execution, State.TERMINATING);
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+        addJobStatus(execution, IN_PROGRESS,
+                "Terminating VNF with vnfId: " + vnfId + " will set status to " + State.TERMINATING);
+
+        logger.info("Finished executing updateNfInstanceStatusToTerminating  ...");
+
+    }
+
+    public void updateNfInstanceStatusToNotInstantiated(final DelegateExecution execution) {
+        logger.info("Executing updateNfInstanceStatusToNotInstantiated");
+
+        updateNfInstanceStatus(execution, State.NOT_INSTANTIATED);
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+        addJobStatus(execution, IN_PROGRESS,
+                "Successfully terminated VNF with vnfId: " + vnfId + " will set status to " + State.NOT_INSTANTIATED);
+
+        logger.info("Finished executing updateNfInstanceStatusToInstantiated  ...");
+
+    }
+
+    public void updateNfInstanceStatusToFailed(final DelegateExecution execution) {
+        logger.info("Executing updateNfInstanceStatusToFailed");
+
+        updateNfInstanceStatus(execution, State.FAILED);
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+        addJobStatus(execution, ERROR,
+                "Failed to terminate VNF with vnfId: " + vnfId + " will set status to " + State.FAILED);
+
+        logger.info("Finished executing updateNfInstanceStatusToFailed  ...");
+
+    }
+
+    private void updateNfInstanceStatus(final DelegateExecution execution, final State vnfStatus) {
+        final String vnfId = (String) execution.getVariable(TERMINATE_VNF_VNFID_PARAM_NAME);
+
+        final boolean isSuccessful = databaseServiceProvider.updateNfInstState(vnfId, vnfStatus);
+        if (!isSuccessful) {
+            final String message = "Unable to update NfvoNfInst " + vnfId + " status to" + vnfStatus + " in database";
+            logger.error(message);
+            abortOperation(execution, message);
+        }
+    }
+
+}