nl.vpro.jackson2.rs.JacksonContextResolver Maven / Gradle / Ivy
package nl.vpro.jackson2.rs;
import jakarta.annotation.Priority;
import jakarta.ws.rs.*;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.ext.ContextResolver;
import jakarta.ws.rs.ext.Provider;
import java.util.function.Supplier;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.jakarta.rs.json.JacksonXmlBindJsonProvider;
import nl.vpro.jackson2.Jackson2Mapper;
/**
* This is used to bind our object mapper to resteasy/jaxrs.
*
* The exposed mapper is actually in a thread local. Some interceptor may influence it.
*
* @author Michiel Meeuwissen
* @since 2.0
*/
@Provider
@Consumes({MediaType.APPLICATION_JSON, "application/*+json", "text/json"})
@Produces({MediaType.APPLICATION_JSON, "application/*+json", "text/json"})
@Priority(JacksonContextResolver.PRIORITY)
public class JacksonContextResolver extends JacksonXmlBindJsonProvider implements ContextResolver {
static final int PRIORITY = Priorities.USER;
private final ThreadLocal mapper;
public JacksonContextResolver() {
this(Jackson2Mapper.getLenientInstance());
}
public JacksonContextResolver(ObjectMapper mapper) {
this(() -> mapper);
}
public JacksonContextResolver(Supplier mapper) {
this.mapper = ThreadLocal.withInitial(mapper);
}
@Override
public ObjectMapper getContext(Class objectType) {
return mapper.get();
}
/**
* @since 4.0
*/
public void set(ObjectMapper mapper) {
this.mapper.set(mapper);
}
/**
* @since 4.0
*/
public void reset() {
mapper.remove();
}
}