gerrit.onap Code Review - ccsdk/sli/adaptors.git/blob

   1 /*
   2  * Copyright (C) 2019 Bell Canada.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  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 package org.onap.ccsdk.sli.adaptors.grpc.cds;
  17
  18 import io.grpc.CallOptions;
  19 import io.grpc.Channel;
  20 import io.grpc.ClientCall;
  21 import io.grpc.ClientInterceptor;
  22 import io.grpc.ForwardingClientCall;
  23 import io.grpc.Metadata;
  24 import io.grpc.Metadata.Key;
  25 import io.grpc.MethodDescriptor;
  26 import org.apache.http.HttpHeaders;
  27 import org.onap.ccsdk.sli.adaptors.grpc.GrpcProperties;
  28
  29 public class BasicAuthClientInterceptor implements ClientInterceptor {
  30
  31     private GrpcProperties props;
  32
  33     public BasicAuthClientInterceptor(GrpcProperties props) {
  34         this.props = props;
  35     }
  36
  37     @Override
  38     public <ReqT, RespT> ClientCall<ReqT, RespT> interceptCall(
  39         MethodDescriptor<ReqT, RespT> method,
  40         CallOptions callOptions,
  41         Channel channel) {
  42
  43         Key<String> authHeader = Key.of(HttpHeaders.AUTHORIZATION, Metadata.ASCII_STRING_MARSHALLER);
  44
  45         return new ForwardingClientCall.SimpleForwardingClientCall<ReqT, RespT>(
  46             channel.newCall(method, callOptions)) {
  47             @Override
  48             public void start(Listener<RespT> responseListener, Metadata headers) {
  49                 headers.put(authHeader, props.getAuth());
  50                 super.start(responseListener, headers);
  51             }
  52         };
  53     }
  54 }