package ca.uhn.fhir.rest.server.interceptor;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.model.dstu.resource.Patient;
import ca.uhn.fhir.rest.annotation.Search;
import ca.uhn.fhir.rest.method.RequestDetails;
import ca.uhn.fhir.rest.server.IResourceProvider;
import ca.uhn.fhir.rest.server.RestfulServer;
import ca.uhn.fhir.rest.server.exceptions.BaseServerResponseException;
import ca.uhn.fhir.rest.server.exceptions.UnprocessableEntityException;
import ca.uhn.fhir.util.PortUtil;
import ca.uhn.fhir.util.TestUtil;
public class ExceptionInterceptorMethodTest {
private static CloseableHttpClient ourClient;
private static FhirContext ourCtx = FhirContext.forDstu1();
private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(ExceptionInterceptorMethodTest.class);
private static int ourPort;
private static Server ourServer;
private static RestfulServer servlet;
private IServerInterceptor myInterceptor;
@Before
public void before() {
myInterceptor = mock(IServerInterceptor.class);
servlet.setInterceptors(Collections.singletonList(myInterceptor));
}
@Test
public void testThrowUnprocessableEntityException() throws Exception {
when(myInterceptor.incomingRequestPreProcessed(any(HttpServletRequest.class), any(HttpServletResponse.class))).thenReturn(true);
when(myInterceptor.incomingRequestPostProcessed(any(RequestDetails.class), any(HttpServletRequest.class), any(HttpServletResponse.class))).thenReturn(true);
when(myInterceptor.handleException(any(RequestDetails.class), any(BaseServerResponseException.class), any(HttpServletRequest.class), any(HttpServletResponse.class))).thenReturn(true);
HttpGet httpGet = new HttpGet("http://localhost:" + ourPort + "/Patient?_query=throwUnprocessableEntityException");
HttpResponse status = ourClient.execute(httpGet);
ourLog.info(IOUtils.toString(status.getEntity().getContent()));
assertEquals(422, status.getStatusLine().getStatusCode());
IOUtils.closeQuietly(status.getEntity().getContent());
ArgumentCaptor<BaseServerResponseException> captor = ArgumentCaptor.forClass(BaseServerResponseException.class);
verify(myInterceptor, times(1)).handleException(any(RequestDetails.class), captor.capture(), any(HttpServletRequest.class), any(HttpServletResponse.class));
assertEquals(UnprocessableEntityException.class, captor.getValue().getClass());
}
@Test
public void testThrowUnprocessableEntityExceptionAndOverrideResponse() throws Exception {
when(myInterceptor.incomingRequestPreProcessed(any(HttpServletRequest.class), any(HttpServletResponse.class))).thenReturn(true);
when(myInterceptor.incomingRequestPostProcessed(any(RequestDetails.class), any(HttpServletRequest.class), any(HttpServletResponse.class))).thenReturn(true);
when(myInterceptor.handleException(any(RequestDetails.class), any(BaseServerResponseException.class), any(HttpServletRequest.class), any(HttpServletResponse.class))).thenAnswer(new Answer<Boolean>() {
@Override
public Boolean answer(InvocationOnMock theInvocation) throws Throwable {
HttpServletResponse resp = (HttpServletResponse) theInvocation.getArguments()[3];
resp.setStatus(405);
resp.setContentType("text/plain");
resp.getWriter().write("HELP IM A BUG");
resp.getWriter().close();
return false;
}
});
HttpGet httpGet = new HttpGet("http://localhost:" + ourPort + "/Patient?_query=throwUnprocessableEntityException");
HttpResponse status = ourClient.execute(httpGet);
String responseContent = IOUtils.toString(status.getEntity().getContent());
ourLog.info(responseContent);
assertEquals(405, status.getStatusLine().getStatusCode());
IOUtils.closeQuietly(status.getEntity().getContent());
assertEquals("HELP IM A BUG", responseContent);
}
@AfterClass
public static void afterClassClearContext() throws Exception {
ourServer.stop();
TestUtil.clearAllStaticFieldsForUnitTest();
}
@BeforeClass
public static void beforeClass() throws Exception {
ourPort = PortUtil.findFreePort();
ourServer = new Server(ourPort);
DummyPatientResourceProvider patientProvider = new DummyPatientResourceProvider();
ServletHandler proxyHandler = new ServletHandler();
servlet = new RestfulServer(ourCtx);
servlet.setResourceProviders(patientProvider);
ServletHolder servletHolder = new ServletHolder(servlet);
proxyHandler.addServletWithMapping(servletHolder, "/*");
ourServer.setHandler(proxyHandler);
ourServer.start();
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(5000, TimeUnit.MILLISECONDS);
HttpClientBuilder builder = HttpClientBuilder.create();
builder.setConnectionManager(connectionManager);
ourClient = builder.build();
}
/**
* Created by dsotnikov on 2/25/2014.
*/
public static class DummyPatientResourceProvider implements IResourceProvider {
@Override
public Class<Patient> getResourceType() {
return Patient.class;
}
/**
* Retrieve the resource by its identifier
*
* @param theId
* The resource identity
* @return The resource
*/
@Search(queryName = "throwUnprocessableEntityException")
public List<Patient> throwUnprocessableEntityException() {
throw new UnprocessableEntityException("Unprocessable!");
}
}
}