package org.oxerr.okcoin.rest.dto.valuereader;
   
   import java.io.IOException;
   import java.io.InputStream;
   
   import javax.annotation.Nullable;
   
   import org.apache.http.entity.ContentType;
   import org.oxerr.okcoin.rest.dto.Result;
  import org.oxerr.okcoin.rest.service.web.LoginRequiredException;
  
  import com.fasterxml.jackson.databind.JsonMappingException;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  public class ResultValueReader implements ValueReader<Result> {
  
  	private static final ResultValueReader INSTANCE = new ResultValueReader();
  
  	private JsonValueReader<Result> jsonValueReader;
  
  	public static ResultValueReader getInstance() {
  		return INSTANCE;
  	}
  
  	public ResultValueReader() {
  		ObjectMapper objectMapper = new ObjectMapper();
  		jsonValueReader = new JsonValueReader<>(objectMapper, Result.class);
  	}
  
  	/**
  	 * {@inheritDoc}
  	 */
  	@Override
  	public Result read(InputStream inputStream,
  		@Nullable ContentType contentType) throws IOException {
  		try {
  			return jsonValueReader.read(inputStream, contentType);
  		} catch (JsonMappingException e) {
  			throw new LoginRequiredException(e.getMessage(), e);
  		}
  	}
  
  }