bpmn/so-bpmn-tasks/src/test/java/org/onap/so/GrpcNettyServer.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2019 Nordix
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License.
  15  *
  16  *  SPDX-License-Identifier: Apache-2.0
  17  *  ============LICENSE_END=========================================================
  18  */
  19
  20 package org.onap.so;
  21
  22 import io.grpc.ServerBuilder;
  23 import io.grpc.stub.StreamObserver;
  24 import io.grpc.testing.GrpcCleanupRule;
  25 import java.io.IOException;
  26 import java.util.ArrayList;
  27 import java.util.Collections;
  28 import java.util.List;
  29 import java.util.concurrent.CountDownLatch;
  30 import java.util.concurrent.atomic.AtomicReference;
  31 import javax.annotation.PostConstruct;
  32 import org.junit.Rule;
  33 import org.onap.ccsdk.cds.controllerblueprints.common.api.EventType;
  34 import org.onap.ccsdk.cds.controllerblueprints.common.api.Status;
  35 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase;
  36 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
  37 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40 import org.springframework.beans.factory.annotation.Value;
  41 import org.springframework.stereotype.Component;
  42
  43 @Component
  44 public class GrpcNettyServer extends BluePrintProcessingServiceImplBase {
  45
  46     private static final Logger logger = LoggerFactory.getLogger(GrpcNettyServer.class);
  47
  48     @Value("${cds.endpoint}")
  49     private String host;
  50
  51     @Value("${cds.port}")
  52     private String port;
  53
  54     @Rule
  55     public final GrpcCleanupRule grpcCleanup = new GrpcCleanupRule();
  56
  57     private final CountDownLatch allRequestsDelivered = new CountDownLatch(1);
  58     private final AtomicReference<StreamObserver<ExecutionServiceOutput>> responseObserverRef = new AtomicReference<>();
  59     private final List<ExecutionServiceInput> detailedMessages = new ArrayList<>();
  60
  61     @PostConstruct
  62     public void start() throws IOException {
  63
  64         final BluePrintProcessingServiceImplBase blueprintPrcessorImpl = new BluePrintProcessingServiceImplBase() {
  65             @Override
  66             public StreamObserver<ExecutionServiceInput> process(
  67                     StreamObserver<ExecutionServiceOutput> responseObserver) {
  68
  69                 responseObserverRef.set(responseObserver);
  70
  71                 StreamObserver<ExecutionServiceInput> requestObserver = new StreamObserver<ExecutionServiceInput>() {
  72                     @Override
  73                     public void onNext(ExecutionServiceInput message) {
  74                         detailedMessages.add(message);
  75                         logger.info("Message received: {}", message);
  76                         ExecutionServiceOutput executionServiceOutput = ExecutionServiceOutput.newBuilder()
  77                                 .setActionIdentifiers(message.getActionIdentifiers())
  78                                 .setStatus(Status.newBuilder().setEventType(EventType.EVENT_COMPONENT_EXECUTED).build())
  79                                 .build();
  80
  81                         responseObserverRef.get().onNext(executionServiceOutput);
  82                         logger.info("Message sent: {}", executionServiceOutput);
  83                     }
  84
  85                     @Override
  86                     public void onError(Throwable t) {
  87                         responseObserverRef.get().onError(t);
  88                     }
  89
  90                     @Override
  91                     public void onCompleted() {
  92                         allRequestsDelivered.countDown();
  93                         responseObserverRef.get().onCompleted();
  94                     }
  95                 };
  96
  97                 return requestObserver;
  98             }
  99         };
 100         grpcCleanup.register(ServerBuilder.forPort(Integer.valueOf(port)).directExecutor()
 101                 .addService(blueprintPrcessorImpl).build().start());
 102
 103     }
 104
 105     public List<ExecutionServiceInput> getDetailedMessages() {
 106         return this.detailedMessages;
 107     }
 108
 109     public void cleanMessage() {
 110         this.detailedMessages.clear();
 111     }
 112
 113 }