gov.nasa.pds.api.registry.view.JsonPluralSerializer Maven / Gradle / Ivy

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Registry API Service contributing to the PDS Federated Search API

There is a newer version: 4.5.6

package gov.nasa.pds.api.registry.view;

import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import org.springframework.http.HttpInputMessage;
import org.springframework.http.HttpOutputMessage;
import org.springframework.http.MediaType;
import org.springframework.http.converter.AbstractHttpMessageConverter;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.http.converter.HttpMessageNotWritableException;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.ObjectMapper;
import gov.nasa.pds.model.WyriwygProducts;

public class JsonPluralSerializer extends AbstractHttpMessageConverter {
  public JsonPluralSerializer() {
    super(new MediaType("application", "kvp+json"));
  }

  @Override
  protected boolean supports(Class clazz) {
    return WyriwygProducts.class.isAssignableFrom(clazz);
  }

  @Override
  protected WyriwygProducts readInternal(Class clazz,
      HttpInputMessage inputMessage) throws IOException, HttpMessageNotReadableException {
    return new WyriwygProducts();
  }

  @Override
  protected void writeInternal(WyriwygProducts t, HttpOutputMessage outputMessage)
      throws IOException, HttpMessageNotWritableException {
    ObjectMapper mapper = new ObjectMapper();
    mapper.setSerializationInclusion(Include.NON_NULL);
    outputMessage.getHeaders().setContentType(MediaType.APPLICATION_JSON); // must be before body is fetched
    OutputStream os = outputMessage.getBody();
    OutputStreamWriter wr = new OutputStreamWriter(os);
    Utilities.fix(t.getSummary());
    WyriwygSerializer.writeJSON(t, wr, mapper);
    wr.close();
  }
}