sdnc-a1-controller/northbound/nonrt-ric-api/provider/src/main/java/org/onap/sdnc/northbound/provider/NonrtRicApiProvider.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2019 Nordix Foundation.
   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  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  * SPDX-License-Identifier: Apache-2.0
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.sdnc.northbound.provider;
  22
  23 import com.google.common.util.concurrent.CheckedFuture;
  24 import com.google.common.util.concurrent.Futures;
  25 import com.google.common.util.concurrent.ListenableFuture;
  26 import java.text.DateFormat;
  27 import java.text.SimpleDateFormat;
  28 import java.util.Date;
  29 import java.util.List;
  30 import java.util.TimeZone;
  31 import java.util.concurrent.ExecutionException;
  32 import java.util.concurrent.ExecutorService;
  33 import java.util.concurrent.Executors;
  34 import org.onap.sdnc.northbound.restadapter.NearRicUrlProvider;
  35 import org.onap.sdnc.northbound.restadapter.RestAdapter;
  36 import org.onap.sdnc.northbound.restadapter.RestAdapterImpl;
  37 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  38 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
  39 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  40 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  41 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker;
  42 import org.opendaylight.controller.sal.binding.api.RpcProviderRegistry;
  43 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.A1ADAPTERAPIService;
  44 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.DeletePolicyInput;
  45 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.DeletePolicyOutput;
  46 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.DeletePolicyOutputBuilder;
  47 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyIdentitiesInput;
  48 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyIdentitiesOutput;
  49 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyIdentitiesOutputBuilder;
  50 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeIdentitiesInput;
  51 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeIdentitiesOutput;
  52 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeIdentitiesOutputBuilder;
  53 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeInput;
  54 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeOutput;
  55 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.GetPolicyTypeOutputBuilder;
  56 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.PutPolicyInput;
  57 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.PutPolicyOutput;
  58 import org.opendaylight.yang.gen.v1.org.onap.sdnc.northbound.a1.adapter.rev200122.PutPolicyOutputBuilder;
  59 import org.opendaylight.yangtools.yang.common.RpcResult;
  60 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  61 import org.slf4j.Logger;
  62 import org.slf4j.LoggerFactory;
  63 import org.springframework.http.ResponseEntity;
  64
  65 /**
  66  * Defines a base implementation for your provider. This class overrides the generated interface
  67  * from the YANG model and implements the request model for the A1 interface. This class identifies
  68  * the Near-RIC throught the IP passed over the payload and calls the corresponding Near-RIC over
  69  * Rest API
  70  *
  71  * <pre>
  72  *
  73  * @author lathishbabu.ganesan@est.tech
  74  *
  75  */
  76
  77 public class NonrtRicApiProvider implements AutoCloseable, A1ADAPTERAPIService {
  78
  79   protected static final String APP_NAME = "nonrt-ric-api";
  80   protected static final String NO_SERVICE_LOGIC_ACTIVE = "No service logic active for ";
  81   private static final String NON_NULL_PARAM = "non-null";
  82   private static final String NULL_PARAM = "null";
  83
  84   private final Logger log = LoggerFactory.getLogger(NonrtRicApiProvider.class);
  85   private final ExecutorService executor;
  86
  87   protected DataBroker dataBroker;
  88   protected NotificationPublishService notificationService;
  89   protected RpcProviderRegistry rpcRegistry;
  90   protected BindingAwareBroker.RpcRegistration<?> rpcRegistration;
  91   private RestAdapter restAdapter;
  92   private NearRicUrlProvider nearRicUrlProvider;
  93
  94   public NonrtRicApiProvider(DataBroker dataBroker,
  95       NotificationPublishService notificationPublishService,
  96       RpcProviderRegistry rpcProviderRegistry) {
  97     log.info("Creating provider for {}", APP_NAME);
  98     executor = Executors.newFixedThreadPool(1);
  99     setDataBroker(dataBroker);
 100     setNotificationService(notificationPublishService);
 101     setRpcRegistry(rpcProviderRegistry);
 102     initialize();
 103
 104   }
 105
 106   public void initialize() {
 107     log.info("Initializing provider for {}", APP_NAME);
 108     createContainers();
 109     restAdapter = new RestAdapterImpl();
 110     nearRicUrlProvider = new NearRicUrlProvider();
 111     log.info("Initialization complete for {}", APP_NAME);
 112   }
 113
 114   protected void initializeChild() {
 115     // Override if you have custom initialization intelligence
 116   }
 117
 118   @Override
 119   public void close() throws Exception {
 120     log.info("Closing provider for {}", APP_NAME);
 121     executor.shutdown();
 122     rpcRegistration.close();
 123     log.info("Successfully closed provider for {}", APP_NAME);
 124   }
 125
 126   private static class Iso8601Util {
 127
 128     private static TimeZone timeZone = TimeZone.getTimeZone("UTC");
 129     private static DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
 130
 131     private Iso8601Util() {}
 132
 133     static {
 134       dateFormat.setTimeZone(timeZone);
 135     }
 136
 137     private static String now() {
 138       return dateFormat.format(new Date());
 139     }
 140   }
 141
 142   public void setDataBroker(DataBroker dataBroker) {
 143     this.dataBroker = dataBroker;
 144     if (log.isDebugEnabled()) {
 145       log.debug("DataBroker set to {}", dataBroker == null ? NULL_PARAM : NON_NULL_PARAM);
 146     }
 147   }
 148
 149   public void setNotificationService(NotificationPublishService notificationService) {
 150     this.notificationService = notificationService;
 151     if (log.isDebugEnabled()) {
 152       log.debug("Notification Service set to {}",
 153           notificationService == null ? NULL_PARAM : NON_NULL_PARAM);
 154     }
 155   }
 156
 157   public void setRpcRegistry(RpcProviderRegistry rpcRegistry) {
 158     this.rpcRegistry = rpcRegistry;
 159     if (log.isDebugEnabled()) {
 160       log.debug("RpcRegistry set to {}", rpcRegistry == null ? NULL_PARAM : NON_NULL_PARAM);
 161     }
 162   }
 163
 164   private void createContainers() {
 165
 166     final WriteTransaction t = dataBroker.newReadWriteTransaction();
 167
 168     try {
 169       CheckedFuture<Void, TransactionCommitFailedException> checkedFuture = t.submit();
 170       checkedFuture.get();
 171       log.info("Create containers succeeded!");
 172
 173     } catch (InterruptedException | ExecutionException e) {
 174       log.error("Create containers failed: ", e);
 175     }
 176   }
 177
 178   @Override
 179   public ListenableFuture<RpcResult<GetPolicyTypeIdentitiesOutput>> getPolicyTypeIdentities(
 180           GetPolicyTypeIdentitiesInput input) {
 181     log.info("Start of getPolicyTypeIdentities");
 182     GetPolicyTypeIdentitiesOutputBuilder responseBuilder = new GetPolicyTypeIdentitiesOutputBuilder();
 183     String uri = nearRicUrlProvider.policyTypesUrl(String.valueOf(input.getNearRtRicUrl()));
 184     ResponseEntity<List<String>> response = restAdapter.get(uri, List.class);
 185     if (response.hasBody()) {
 186       log.info("Response getPolicyTypeIdentities : {} ", response.getBody());
 187       responseBuilder.setPolicyTypeIdList(response.getBody());
 188     }
 189     log.info("End of getPolicyTypeIdentities");
 190     RpcResult<GetPolicyTypeIdentitiesOutput> rpcResult = RpcResultBuilder.<GetPolicyTypeIdentitiesOutput>status(true)
 191         .withResult(responseBuilder.build()).build();
 192     return Futures.immediateFuture(rpcResult);
 193   }
 194
 195   @Override
 196   public ListenableFuture<RpcResult<GetPolicyIdentitiesOutput>> getPolicyIdentities(GetPolicyIdentitiesInput input) {
 197     log.info("Start of getPolicyIdentities");
 198     GetPolicyIdentitiesOutputBuilder responseBuilder = new GetPolicyIdentitiesOutputBuilder();
 199     String uri = nearRicUrlProvider.policiesUrl(String.valueOf(input.getNearRtRicUrl()));
 200     ResponseEntity<List<String>> response = restAdapter.get(uri, List.class);
 201     if (response.hasBody()) {
 202       log.info("Response getPolicyIdentities : {} ", response.getBody());
 203       responseBuilder.setPolicyIdList(response.getBody());
 204     }
 205     log.info("End of getPolicyIdentities");
 206     RpcResult<GetPolicyIdentitiesOutput> rpcResult = RpcResultBuilder
 207         .<GetPolicyIdentitiesOutput>status(true).withResult(responseBuilder.build()).build();
 208     return Futures.immediateFuture(rpcResult);
 209   }
 210
 211   @Override
 212   public ListenableFuture<RpcResult<GetPolicyTypeOutput>> getPolicyType(GetPolicyTypeInput input) {
 213     log.info("Start of getPolicyType");
 214     log.info("Policy Type Id : {} ", input.getPolicyTypeId());
 215     GetPolicyTypeOutputBuilder responseBuilder = new GetPolicyTypeOutputBuilder();
 216     String uri = nearRicUrlProvider.getPolicyTypeUrl(String.valueOf(input.getNearRtRicUrl()),
 217             String.valueOf(input.getPolicyTypeId()));
 218     ResponseEntity<String> response = restAdapter.get(uri, String.class);
 219     if (response.hasBody()) {
 220       log.info("Response getPolicyType : {} ", response.getBody());
 221       responseBuilder.setPolicyType(response.getBody());
 222     }
 223     log.info("End of getPolicyType");
 224     RpcResult<GetPolicyTypeOutput> rpcResult = RpcResultBuilder.<GetPolicyTypeOutput>status(true)
 225         .withResult(responseBuilder.build()).build();
 226     return Futures.immediateFuture(rpcResult);
 227   }
 228
 229   @Override
 230   public ListenableFuture<RpcResult<PutPolicyOutput>> putPolicy(PutPolicyInput input) {
 231     log.info("Start of putPolicy");
 232     PutPolicyOutputBuilder responseBuilder = new PutPolicyOutputBuilder();
 233     String uri = nearRicUrlProvider.putPolicyUrl(String.valueOf(input.getNearRtRicUrl()),
 234             String.valueOf(input.getPolicyId()), String.valueOf(input.getPolicyTypeId()));
 235     log.info("PUT Request input.getPolicy() : {} ", input.getPolicy());
 236     ResponseEntity<String> response = restAdapter.put(uri, input.getPolicy(), String.class);
 237     if (response.hasBody()) {
 238       log.info("Response putPolicy : {} ", response.getBody());
 239       responseBuilder.setReturnedPolicy(response.getBody());
 240     }
 241     log.info("End of putPolicy");
 242     RpcResult<PutPolicyOutput> rpcResult = RpcResultBuilder
 243         .<PutPolicyOutput>status(true).withResult(responseBuilder.build()).build();
 244     return Futures.immediateFuture(rpcResult);
 245   }
 246
 247   @Override
 248   public ListenableFuture<RpcResult<DeletePolicyOutput>> deletePolicy(DeletePolicyInput input) {
 249     log.info("Start of deletePolicy");
 250     DeletePolicyOutputBuilder responseBuilder = new DeletePolicyOutputBuilder();
 251     String uri = nearRicUrlProvider.deletePolicyUrl(String.valueOf(input.getNearRtRicUrl()),
 252             String.valueOf(input.getPolicyId()));
 253     ResponseEntity<Void> response = restAdapter.delete(uri);
 254     log.info("End of deletePolicy");
 255     RpcResult<DeletePolicyOutput> rpcResult = RpcResultBuilder
 256         .<DeletePolicyOutput>status(true).withResult(responseBuilder.build()).build();
 257     return Futures.immediateFuture(rpcResult);
 258   }
 259 }