org.komamitsu.retrofit.converter.msgpack.MessagePackConverterFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of retrofit-converter-msgpack Show documentation

Retrofit Converter for MessagePack

The newest version!

package org.komamitsu.retrofit.converter.msgpack;

import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectReader;
import com.fasterxml.jackson.databind.ObjectWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import org.msgpack.jackson.dataformat.MessagePackFactory;
import retrofit2.Converter;
import retrofit2.Retrofit;

public class MessagePackConverterFactory extends Converter.Factory {
  public static MessagePackConverterFactory create() {
    return create(new ObjectMapper(new MessagePackFactory()));
  }

  @SuppressWarnings("ConstantConditions") // Guarding public API nullability.
  public static MessagePackConverterFactory create(ObjectMapper mapper) {
    if (mapper == null) {
      throw new IllegalArgumentException("'mapper' is null");
    }

    if (!(mapper.getFactory() instanceof MessagePackFactory)) {
      throw new IllegalArgumentException("'mapper' doesn't have MessagePackFactory");
    }

    return new MessagePackConverterFactory(mapper);
  }

  private final ObjectMapper mapper;

  private MessagePackConverterFactory(ObjectMapper mapper) {
    this.mapper = mapper;
  }

  @Override
  public Converter requestBodyConverter(
      Type type,
      Annotation[] parameterAnnotations,
      Annotation[] methodAnnotations,
      Retrofit retrofit) {
    JavaType javaType = mapper.getTypeFactory().constructType(type);
    ObjectWriter writer = mapper.writerFor(javaType);
    return new MessagePackRequestBodyConverter<>(writer);
  }

  @Override
  public Converter responseBodyConverter(
      Type type, Annotation[] annotations, Retrofit retrofit) {
    JavaType javaType = mapper.getTypeFactory().constructType(type);
    ObjectReader reader = mapper.readerFor(javaType);
    return new MessagePackResponseBodyConverter<>(reader);
  }
}