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package org.glassfish.jersey.jackson;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import org.glassfish.jersey.CommonProperties;
import org.glassfish.jersey.internal.InternalProperties;
import org.glassfish.jersey.internal.util.PropertiesHelper;
import com.fasterxml.jackson.jaxrs.base.JsonMappingExceptionMapper;
import com.fasterxml.jackson.jaxrs.base.JsonParseExceptionMapper;
import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
/**
* Feature used to register Jackson JSON providers.
*
* @author Stepan Kopriva (stepan.kopriva at oracle.com)
*/
public class JacksonFeature implements Feature {
private final static String JSON_FEATURE = JacksonFeature.class.getSimpleName();
@Override
public boolean configure(final FeatureContext context) {
final Configuration config = context.getConfiguration();
final String jsonFeature = CommonProperties.getValue(config.getProperties(), config.getRuntimeType(),
InternalProperties.JSON_FEATURE, JSON_FEATURE, String.class);
// Other JSON providers registered.
if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
return false;
}
// Disable other JSON providers.
context.property(PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE, config.getRuntimeType()),
JSON_FEATURE);
// Register Jackson.
if (!config.isRegistered(JacksonJaxbJsonProvider.class)) {
// add the default Jackson exception mappers
context.register(JsonParseExceptionMapper.class);
context.register(JsonMappingExceptionMapper.class);
context.register(JacksonJaxbJsonProvider.class, MessageBodyReader.class, MessageBodyWriter.class);
}
return true;
}
}