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package org.glassfish.jersey.server.mvc.internal;
import java.io.IOException;
import javax.ws.rs.Priorities;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.ext.WriterInterceptor;
import javax.ws.rs.ext.WriterInterceptorContext;
import javax.annotation.Priority;
import org.glassfish.jersey.server.mvc.Template;
import org.glassfish.jersey.server.mvc.Viewable;
/**
* Intercepts resource methods that are annotated by {@link Template template annotation} and does not return {@link Viewable}
* instances.
*
* @see org.glassfish.jersey.server.mvc.spi.ResolvedViewable
* @see ViewableMessageBodyWriter
*
* @author Michal Gajdos (michal.gajdos at oracle.com)
*/
@Priority(Priorities.ENTITY_CODER)
class TemplateMethodInterceptor implements WriterInterceptor {
@Override
public void aroundWriteTo(final WriterInterceptorContext context) throws IOException, WebApplicationException {
final Template template = TemplateHelper.getTemplateAnnotation(context.getAnnotations());
final Object entity = context.getEntity();
if (template != null && !(entity instanceof Viewable)) {
context.setType(Viewable.class);
context.setEntity(new Viewable(template.name(), entity,
Object.class.equals(template.resolvingClass()) ? null : template.resolvingClass()));
}
context.proceed();
}
}