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package com.sun.jersey.atom.abdera.impl.provider.entity;
import com.sun.jersey.atom.abdera.ContentHelper;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Variant;
import org.apache.abdera.model.Entry;
/**
* <p>Server side resource class for the unit test suite.</p>
*/
@Path("/test")
public class AtomTestingResource {
@Context
ContentHelper contentHelper;
@Context
Request request;
@GET
@Path("categories")
@Produces({"application/atomcat+xml", "application/xml", "text/xml", "application/atomcat+json", "application/json"})
public Response getCategories() {
dumpSelectedMediaType("getCategories");
return Response.ok(AtomTestingFactory.createCategories()).build();
}
@GET
@Path("content")
@Produces("application/xml")
public Response getContent() {
dumpSelectedMediaType("getContent");
Entry entry = AtomTestingFactory.createEntry();
ContentBean bean = new ContentBean("foo value", "bar value");
contentHelper.setContentEntity(entry, MediaType.APPLICATION_XML_TYPE, bean);
return Response.ok(entry).build();
}
@GET
@Path("entry")
@Produces({"application/atom", "application/atom+xml", "application/xml", "text/xml", "application/atom+json", "application/json"})
public Response getEntry() {
dumpSelectedMediaType("getEntry");
return Response.ok(AtomTestingFactory.createEntry()).build();
}
@GET
@Path("feed")
@Produces({"application/atom", "application/atom+xml", "application/xml", "text/xml", "application/atom+json", "application/json"})
public Response getFeed() {
dumpSelectedMediaType("getFeed");
return Response.ok(AtomTestingFactory.createFeed()).build();
}
@GET
@Path("service")
@Produces({"application/atomsvc+xml", "application/xml", "text/xml", "application/atomsvc+json", "application/json"})
public Response getService() {
dumpSelectedMediaType("getService");
return Response.ok(AtomTestingFactory.createService()).build();
}
private void dumpSelectedMediaType(String methodName) {
System.out.println("Method " + methodName + " selected media type " + calculateSelectedMediaType(methodName));
}
/**
* <p>Calculate and return the media type that we should be producing
* on this call, following the same algorithm that JAX-RS does.</p>
*
* @param methodName Name of the method (in this class) that was called
*
* @exception IllegalArgumentException if we cannot identify the appropriate
* @Produces annotation for this method name
*/
private MediaType calculateSelectedMediaType(String methodName) {
// Reflect to get the Method definition for this methodName
// The following logic assumes none of the method names are overloaded,
// which is true for this class but might not be in general
Method[] methods = this.getClass().getDeclaredMethods();
Method method = null;
for (int i = 0; i < methods.length; i++) {
if (methodName.equals(methods[i].getName())) {
method = methods[i];
break;
}
}
if (method == null) {
throw new IllegalArgumentException("Cannot find Method instance for method " + methodName);
}
// Look for the @Produces annotation on this method
Annotation annotation = method.getAnnotation(Produces.class);
if (annotation == null) {
throw new IllegalArgumentException("Method " + methodName + " does not have an @Produces annotation");
}
// Build a list of Variants based on the @Produces annotation
List<Variant> variants = new ArrayList<Variant>();
String[] items = ((Produces) annotation).value();
for (String item : items) {
String[] parts = item.split("/");
if (parts.length != 2) {
throw new IllegalArgumentException("Media type " + item + " on @Produces list for method " + methodName + " is malformed");
}
variants.add(new Variant(new MediaType(parts[0], parts[1]), null, null));
}
// Return the media type from the variant that was selected
return request.selectVariant(variants).getMediaType();
}
}