package com.atlassian.streams.refapp;
   
   import com.atlassian.streams.api.common.Option;
   import com.atlassian.streams.refapp.api.StreamsActivityManager;
   import com.atlassian.streams.spi.EntityResolver;
   
   import static com.google.common.base.Preconditions.checkNotNull;
   
   public class RefappEntityResolver implements EntityResolver {
      private StreamsActivityManager streamsActivityManager;
  
      public RefappEntityResolver(final StreamsActivityManager streamsActivityManager) {
          this.streamsActivityManager = checkNotNull(streamsActivityManager, "streamsActivityManager");
      }
  
      @Override
      public Option<Object> apply(String key) {
          return Option.<Object>option(streamsActivityManager.getEntry(Integer.valueOf(key)));
      }
  }