MessageBodyExceptionWrappingTest.java

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package org.glassfish.jersey.tests.e2e;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;

import javax.xml.transform.stream.StreamSource;

import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.test.JerseyTest;

import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import static javax.ws.rs.client.Entity.entity;

/**
 * @author Miroslav Fuksa
 */
public class MessageBodyExceptionWrappingTest extends JerseyTest {

    @Override
    protected ResourceConfig configure() {
        return new ResourceConfig(TestResource.class);
    }

    /**
     * Tests whether fail of message body writer causes throwing exception. Previously the
     * exception was not thrown and 500 status code was returned in the response.
     */
    @Test
    public void testWrapping() {
        WebTarget resource = target().path("test");
        StreamSource source = new StreamSource() {
            @Override
            public InputStream getInputStream() {
                throw new WebApplicationException(555);
            }
        };
        try {
            Response response = resource.request().post(Entity.entity(source, MediaType.TEXT_XML_TYPE));
            fail("Exception expected, instead response with " + response.getStatus() + " status has been returned.");
        } catch (ProcessingException e) {
            assertEquals(WebApplicationException.class, e.getCause().getClass());
            assertEquals(555, ((WebApplicationException) e.getCause()).getResponse().getStatus());
        }
    }

    @Path("test")
    public static class TestResource {

        @POST
        public String echo(String entity) {
            return entity;
        }
    }

    /**
     * Provider reproducing JERSEY-1990.
     */
    @Produces("text/foo")
    public static class ThrowingUpProvider implements MessageBodyWriter<String>, MessageBodyReader<String> {
        public volatile int counter = 0;

        public int getInvocationCount() {
            return counter;
        }

        @Override
        public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
            counter++;
            final RuntimeException up = new RuntimeException("lunch");
            throw up;
        }

        @Override
        public long getSize(String s, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
            return -1;
        }

        @Override
        public void writeTo(String s, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
                            MultivaluedMap<String, Object> httpHeaders,
                            OutputStream entityStream) throws IOException, WebApplicationException {
            throw new UnsupportedOperationException("This method should not have ever been called.");
        }

        @Override
        public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
            counter++;
            final RuntimeException up = new RuntimeException("dinner");
            throw up;
        }

        @Override
        public String readFrom(Class<String> type, Type genericType, Annotation[] annotations, MediaType mediaType,
                               MultivaluedMap<String, String> httpHeaders,
                               InputStream entityStream) throws IOException, WebApplicationException {
            throw new UnsupportedOperationException("This method should not have ever been called.");
        }
    }

    /**
     * Reproducer for JERSEY-1990.
     */
    @Test
    public void testMbwHandlingExceptionInIsReadableWritable() {
        ThrowingUpProvider throwingUpProvider = new ThrowingUpProvider();

        final String response =
                target("test").register(throwingUpProvider).request("text/foo").post(entity("hello", "text/foo"), String.class);

        assertEquals("hello", response);
        assertEquals(2, throwingUpProvider.getInvocationCount());
    }

}