bpmn/so-bpmn-infrastructure-common/src/main/java/org/onap/so/bpmn/infrastructure/pnf/delegate/RegisterForPnfReadyEvent.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2020 Nokia.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.bpmn.infrastructure.pnf.delegate;
  22
  23 import static org.onap.so.bpmn.infrastructure.pnf.delegate.ExecutionVariableNames.TIMEOUT_FOR_NOTIFICATION;
  24 import com.google.common.base.Strings;
  25 import org.camunda.bpm.engine.RuntimeService;
  26 import org.camunda.bpm.engine.delegate.DelegateExecution;
  27 import org.camunda.bpm.engine.delegate.JavaDelegate;
  28 import org.onap.so.bpmn.common.BuildingBlockExecution;
  29 import org.onap.so.bpmn.infrastructure.pnf.kafka.KafkaClient;
  30 import org.onap.so.bpmn.servicedecomposition.bbobjects.Pnf;
  31 import org.onap.so.bpmn.servicedecomposition.entities.ResourceKey;
  32 import org.onap.so.bpmn.servicedecomposition.tasks.ExtractPojosForBB;
  33 import org.onap.so.client.exception.BBObjectNotFoundException;
  34 import org.onap.so.client.exception.ExceptionBuilder;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37 import org.springframework.beans.factory.annotation.Autowired;
  38 import org.springframework.beans.factory.annotation.Value;
  39 import org.springframework.stereotype.Component;
  40
  41 /**
  42  * This class is designed to be used within WaitForPnfReadyBB
  43  */
  44 @Component
  45 public class RegisterForPnfReadyEvent implements JavaDelegate {
  46
  47     private static final String ERROR_MESSAGE_PNF_NOT_FOUND =
  48             "pnf resource not found in buildingBlockExecution while registering to kafka listener";
  49     private static final Logger LOGGER = LoggerFactory.getLogger(RegisterForPnfReadyEvent.class);
  50
  51     private KafkaClient kafkaClient;
  52     private ExtractPojosForBB extractPojosForBB;
  53     private ExceptionBuilder exceptionBuilder;
  54     private String pnfEntryNotificationTimeout;
  55
  56     @Autowired
  57     public RegisterForPnfReadyEvent(KafkaClient kafkaClient, ExtractPojosForBB extractPojosForBB,
  58             ExceptionBuilder exceptionBuilder,
  59             @Value("${aai.pnfEntryNotificationTimeout}") String pnfEntryNotificationTimeout) {
  60         this.kafkaClient = kafkaClient;
  61         this.extractPojosForBB = extractPojosForBB;
  62         this.exceptionBuilder = exceptionBuilder;
  63         this.pnfEntryNotificationTimeout = pnfEntryNotificationTimeout;
  64     }
  65
  66     @Override
  67     public void execute(DelegateExecution execution) {
  68         try {
  69             String pnfName = getPnfName(execution);
  70             fillExecution(execution, pnfName);
  71             RuntimeService runtimeService = execution.getProcessEngineServices().getRuntimeService();
  72             kafkaClient.registerForUpdate(pnfName, () -> runtimeService.createMessageCorrelation("WorkflowMessage")
  73                     .processInstanceId(execution.getProcessInstanceId()).correlateWithResult());
  74         } catch (BBObjectNotFoundException e) {
  75             LOGGER.error(ERROR_MESSAGE_PNF_NOT_FOUND);
  76             exceptionBuilder.buildAndThrowWorkflowException(execution, 7000, ERROR_MESSAGE_PNF_NOT_FOUND);
  77         }
  78     }
  79
  80     private void fillExecution(DelegateExecution execution, String pnfName) {
  81         execution.setVariable(ExecutionVariableNames.PNF_CORRELATION_ID, pnfName);
  82         if (Strings.isNullOrEmpty(pnfEntryNotificationTimeout)) {
  83             exceptionBuilder.buildAndThrowWorkflowException(execution, 7000,
  84                     "pnfEntryNotificationTimeout value not defined");
  85         }
  86         execution.setVariable(TIMEOUT_FOR_NOTIFICATION, pnfEntryNotificationTimeout);
  87     }
  88
  89     private String getPnfName(DelegateExecution execution) throws BBObjectNotFoundException {
  90         BuildingBlockExecution buildingBlockExecution =
  91                 (BuildingBlockExecution) execution.getVariable("gBuildingBlockExecution");
  92         Pnf pnf = extractPojosForBB.extractByKey(buildingBlockExecution, ResourceKey.PNF);
  93         String pnfName = pnf.getPnfName();
  94         if (Strings.isNullOrEmpty(pnfName)) {
  95             exceptionBuilder.buildAndThrowWorkflowException(execution, 7000, "pnf name is not set");
  96         }
  97         return pnfName;
  98     }
  99 }