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package org.glassfish.jersey.server.internal.inject;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.inject.Provider;
import org.glassfish.jersey.process.Inflector;
import org.glassfish.jersey.server.ApplicationHandler;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.ContainerResponse;
import org.glassfish.jersey.server.RequestContextBuilder;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.server.internal.process.AsyncContext;
import org.glassfish.jersey.server.model.Resource;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import static org.junit.Assert.assertEquals;
/**
* Unit test for creating an application with asynchronously handled request processing
* via {@link Resource}'s programmatic API.
*
* @author Marek Potociar (marek.potociar at oracle.com)
*/
@RunWith(Parameterized.class)
public class ContextBasedInjectionTest {
private static final URI BASE_URI = URI.create("http://localhost:8080/base/");
@Parameterized.Parameters
public static List<String[]> testUriSuffixes() {
return Arrays.asList(new String[][]{
{"a/b/c", "A-B-C"},
{"a/b/d/", "A-B-D"}
});
}
private final String uriSuffix;
private final String expectedResponse;
public ContextBasedInjectionTest(String uriSuffix, String expectedResponse) {
this.uriSuffix = uriSuffix;
this.expectedResponse = expectedResponse;
}
private static class AsyncInflector implements Inflector<ContainerRequestContext, Response> {
@Context
private Provider<AsyncContext> asyncContextProvider;
private final String responseContent;
public AsyncInflector() {
this.responseContent = "DEFAULT";
}
public AsyncInflector(String responseContent) {
this.responseContent = responseContent;
}
@Override
public Response apply(final ContainerRequestContext req) {
// Suspend current request
final AsyncContext asyncContext = asyncContextProvider.get();
asyncContext.suspend();
Executors.newSingleThreadExecutor().submit(new Runnable() {
@Override
public void run() {
try {
Thread.sleep(500);
} catch (InterruptedException ex) {
ex.printStackTrace(System.err);
}
// Returning will enter the suspended request
asyncContext.resume(Response.ok().entity(responseContent).build());
}
});
return null;
}
}
private ApplicationHandler app;
@Before
public void setupApplication() {
ResourceConfig rc = new ResourceConfig();
Resource.Builder rb;
rb = Resource.builder("a/b/c");
rb.addMethod("GET").handledBy(new AsyncInflector("A-B-C"));
rc.registerResources(rb.build());
rb = Resource.builder("a/b/d");
rb.addMethod("GET").handledBy(new AsyncInflector("A-B-D"));
rc.registerResources(rb.build());
app = new ApplicationHandler(rc);
}
@Test
public void testAsyncApp() throws InterruptedException, ExecutionException {
ContainerRequest req =
RequestContextBuilder.from(BASE_URI, URI.create(BASE_URI.getPath() + uriSuffix), "GET").build();
Future<ContainerResponse> res = app.apply(req);
assertEquals(expectedResponse, res.get().getEntity());
}
}