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Last active August 29, 2015 13:57
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Jetty, Jersey, Guice, JAXB Sample
// See http://blog.bdoughan.com/2011/06/using-jaxbs-xmlaccessortype-to.html
@XmlAccessorType(XmlAccessType.PUBLIC_MEMBER)
@XmlRootElement
public class Cake implements PlainTextBean {
private String type;
// The getter is up here since the order of fields affects the order in the
// xml.
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
@XmlElement
public int height;
@XmlElement
public int radius;
class CakeManagerImpl implements CakeManager {
public synchronized List<Cake> getCakes(String cakes) throws Exception {
return getCakes(Cake.parseCakeList(cakes));
}
public synchronized List<Cake> getCakes(List<Cake> cakes) throws Exception {
ArrayList<Cake> a = new ArrayList<Cake>();
for (Cake m : cakes) {
a.add(new Cake(m.getCake()).query());
}
return a;
}
@Path("/cakes")
public class CakeResource {
private final CakeManager manager;
@Inject
public CakeResource(CakeManager manager) {
this.manager = manager;
}
@GET @Path("recipes/{cakes}")
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML, MediaType.TEXT_PLAIN })
public List<Cake> getCakes(@PathParam("cakes") String cakes) throws Exception {
Log.info("Called getCakes with cake(s) " + cakes);
cakes = Cake.removePrefix(cakes);
Log.info("Removed prefix from cake(s) " + cakes);
return manager.getCakes(cakes);
}
@Provider
@Produces(MediaType.TEXT_PLAIN)
public class PlainTextWriter implements MessageBodyWriter<List<PlainTextBean>> {
@Override
public boolean isWriteable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
Log.info("Use PlainTextWriter to handle " + MediaType.TEXT_PLAIN);
// Use this writer for ANY text/plain.
return true;
}
@Override
public long getSize(List<PlainTextBean> myBean, Class<?> type,
Type genericType, Annotation[] annotations, MediaType mediaType) {
// TOOD: This is a performance hit. Not sure how else to do it right now.
return getData(myBean).length();
}
@Override
public void writeTo(List<PlainTextBean> myBean, Class<?> type,
Type genericType, Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders,
OutputStream entityStream) throws IOException,
WebApplicationException {
try {
// Convert any List<PlainTextBean>
// to a string by calling its toPlainText method.
// See
// http://stackoverflow.com/questions/22611105/create-a-text-plain-jersey-response
Log.info("Serializing a bean to text/plain.");
PrintStream p = new PrintStream(entityStream);
p.print(getData(myBean));
p.flush();
} catch (Exception e) {
Log.warn("Error serializing a List<PlainTextBean> to the output stream");
Log.warn(e);
throw new WebApplicationException(500);
}
}
public String getData(List<PlainTextBean> list) {
StringBuilder text = new StringBuilder();
for (PlainTextBean bean : list) {
text.append(bean.toPlainText());
}
return text.toString();
}
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