content: /*
   * Copyright 2010 Proofpoint, Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package io.airlift.discovery.client;
  
  import com.google.inject.Inject;
  import com.google.inject.Injector;
  import com.google.inject.Key;
  import com.google.inject.Provider;
  
  import static io.airlift.discovery.client.ServiceTypes.serviceType;
  import static java.util.Objects.requireNonNull;
  
  class HttpServiceSelectorProvider
          implements Provider<HttpServiceSelector>
  {
      private final String type;
      private Injector injector;
  
      public HttpServiceSelectorProvider(String type)
      {
          requireNonNull(type);
          this.type = type;
      }
  
      @Inject
      public void setInjector(Injector injector)
      {
          this.injector = injector;
      }
  
      public HttpServiceSelector get()
      {
          requireNonNull(injector, "injector is null");
  
          ServiceSelector serviceSelector = injector.getInstance(Key.get(ServiceSelector.class, serviceType(type)));
  
          HttpServiceSelector httpServiceSelector = new HttpServiceSelectorImpl(serviceSelector);
          return httpServiceSelector;
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
  
          HttpServiceSelectorProvider that = (HttpServiceSelectorProvider) o;
  
          if (!type.equals(that.type)) {
              return false;
          }
  
          return true;
      }
  
      @Override
      public int hashCode()
      {
          return type.hashCode();
      }
  }
  