RESTful Java Web Services - Third Edition

Implementing response message body interceptors

You may use the javax.ws.rs.ext.JAXRSWriterInterceptor interface to intercept and manipulate the outgoing message body. The following example illustrates the use of WriterInterceptor to compress the response body content:

//Other imports are omitted for brevity import java.util.zip.GZIPOutputStream; import javax.ws.rs.WebApplicationException; import javax.ws.rs.core.MultivaluedMap; import javax.ws.rs.ext.Provider; import javax.ws.rs.ext.WriterInterceptor; import javax.ws.rs.ext.WriterInterceptorContext; @Provider public class JAXRSWriterInterceptor implements WriterInterceptor { @Override public void aroundWriteTo(WriterInterceptorContext context) throws IOException, WebApplicationException ...