com.github.t1.problemdetailmapper.ProblemDetailJsonMessageBodyReader Maven / Gradle / Ivy

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package com.github.t1.problemdetailmapper;

import com.github.t1.problemdetail.ProblemDetail;

import javax.json.bind.Jsonb;
import javax.json.bind.JsonbBuilder;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Provider;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import static com.github.t1.problemdetail.Constants.PROBLEM_DETAIL_JSON_TYPE;
import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE;

@Provider
public class ProblemDetailJsonMessageBodyReader implements MessageBodyReader {
    private static final Jsonb JSONB = JsonbBuilder.create();

    @Override public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return APPLICATION_JSON_TYPE.isCompatible(mediaType) || PROBLEM_DETAIL_JSON_TYPE.isCompatible(mediaType);
    }

    @Override public ProblemDetail readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, InputStream entityStream) {
        return JSONB.fromJson(entityStream, type);
    }
}