gerrit.onap Code Review - policy/models.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * Copyright (C) 2019-2021 Bell Canada.
   4  * Modifications Copyright (C) 2020-2021 AT&T Intellectual Property. All rights reserved.
   5  * ================================================================================
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  * ============LICENSE_END=========================================================
  18  */
  19
  20 package org.onap.policy.cds.client;
  21
  22 import io.grpc.ManagedChannel;
  23 import io.grpc.stub.StreamObserver;
  24 import java.util.concurrent.CountDownLatch;
  25 import lombok.AllArgsConstructor;
  26 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BlueprintProcessingServiceGrpc;
  27 import org.onap.ccsdk.cds.controllerblueprints.processing.api.BlueprintProcessingServiceGrpc.BlueprintProcessingServiceStub;
  28 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
  29 import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
  30 import org.onap.policy.cds.api.CdsProcessorListener;
  31 import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure;
  32 import org.onap.policy.common.endpoints.utils.NetLoggerUtil;
  33 import org.onap.policy.common.endpoints.utils.NetLoggerUtil.EventType;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 @AllArgsConstructor
  38 public class CdsProcessorHandler {
  39     private static final Logger LOGGER = LoggerFactory.getLogger(CdsProcessorHandler.class);
  40     private static final String LOG_MSG = "[{}|{}|{}|]{}{}";
  41
  42     private CdsProcessorListener listener;
  43     private String url;
  44
  45     CountDownLatch process(ExecutionServiceInput request, ManagedChannel channel) {
  46         final var header = request.getActionIdentifiers();
  47         LOGGER.info("Processing blueprint({}:{}) for action({})", header.getBlueprintVersion(),
  48             header.getBlueprintName(), header.getBlueprintVersion());
  49
  50         final var finishLatch = new CountDownLatch(1);
  51         final BlueprintProcessingServiceStub asyncStub = BlueprintProcessingServiceGrpc.newStub(channel);
  52         final StreamObserver<ExecutionServiceOutput> responseObserver = new StreamObserver<>() {
  53             @Override
  54             public void onNext(ExecutionServiceOutput output) {
  55                 NetLoggerUtil.log(EventType.IN, CommInfrastructure.REST, url, output.toString());
  56                 listener.onMessage(output);
  57             }
  58
  59             @Override
  60             public void onError(Throwable throwable) {
  61                 LOGGER.info(LOG_MSG, EventType.IN, CommInfrastructure.REST, url, NetLoggerUtil.SYSTEM_LS,
  62                                 throwable);
  63                 listener.onError(throwable);
  64                 finishLatch.countDown();
  65             }
  66
  67             @Override
  68             public void onCompleted() {
  69                 LOGGER.info("Completed blueprint({}:{}) for action({})", header.getBlueprintVersion(),
  70                     header.getBlueprintName(), header.getBlueprintVersion());
  71                 finishLatch.countDown();
  72             }
  73         };
  74
  75         final StreamObserver<ExecutionServiceInput> requestObserver = asyncStub.process(responseObserver);
  76         try {
  77             NetLoggerUtil.log(EventType.OUT, CommInfrastructure.REST, url, request.toString());
  78
  79             // Send the message to CDS backend for processing
  80             requestObserver.onNext(request);
  81             // Mark the end of requests
  82             requestObserver.onCompleted();
  83         } catch (RuntimeException e) {
  84             requestObserver.onError(e);
  85         }
  86         return finishLatch;
  87     }
  88 }