| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.inject.servlet; |
| |
| import static org.easymock.EasyMock.createMock; |
| import static org.easymock.EasyMock.expect; |
| import static org.easymock.EasyMock.replay; |
| import static org.easymock.EasyMock.verify; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.inject.Guice; |
| import com.google.inject.Inject; |
| import com.google.inject.Injector; |
| import com.google.inject.Key; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.concurrent.AbstractExecutorService; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletException; |
| import javax.servlet.http.Cookie; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import junit.framework.TestCase; |
| |
| /** Tests continuation of requests */ |
| |
| public class ContinuingRequestIntegrationTest extends TestCase { |
| private static final String PARAM_VALUE = "there"; |
| private static final String PARAM_NAME = "hi"; |
| |
| private final AtomicBoolean failed = new AtomicBoolean(false); |
| private final AbstractExecutorService sameThreadExecutor = |
| new AbstractExecutorService() { |
| @Override |
| public void shutdown() {} |
| |
| @Override |
| public List<Runnable> shutdownNow() { |
| return ImmutableList.of(); |
| } |
| |
| @Override |
| public boolean isShutdown() { |
| return true; |
| } |
| |
| @Override |
| public boolean isTerminated() { |
| return true; |
| } |
| |
| @Override |
| public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException { |
| return true; |
| } |
| |
| @Override |
| public void execute(Runnable command) { |
| command.run(); |
| } |
| |
| @Override |
| public <T> Future<T> submit(Callable<T> task) { |
| try { |
| task.call(); |
| fail(); |
| } catch (Exception e) { |
| // Expected. |
| assertTrue(e instanceof IllegalStateException); |
| failed.set(true); |
| } |
| |
| return null; |
| } |
| }; |
| |
| private ExecutorService executor; |
| private Injector injector; |
| |
| @Override |
| protected void tearDown() throws Exception { |
| injector.getInstance(GuiceFilter.class).destroy(); |
| } |
| |
| public final void testRequestContinuesInOtherThread() |
| throws ServletException, IOException, InterruptedException { |
| executor = Executors.newSingleThreadExecutor(); |
| |
| injector = |
| Guice.createInjector( |
| new ServletModule() { |
| @Override |
| protected void configureServlets() { |
| serve("/*").with(ContinuingServlet.class); |
| |
| bind(ExecutorService.class).toInstance(executor); |
| } |
| }); |
| |
| FilterConfig filterConfig = createMock(FilterConfig.class); |
| expect(filterConfig.getServletContext()).andReturn(createMock(ServletContext.class)); |
| |
| GuiceFilter guiceFilter = injector.getInstance(GuiceFilter.class); |
| |
| HttpServletRequest request = createMock(HttpServletRequest.class); |
| |
| expect(request.getRequestURI()).andReturn("/"); |
| expect(request.getContextPath()).andReturn("").anyTimes(); |
| expect(request.getMethod()).andReturn("GET"); |
| expect(request.getCookies()).andReturn(new Cookie[0]); |
| |
| FilterChain filterChain = createMock(FilterChain.class); |
| expect(request.getParameter(PARAM_NAME)).andReturn(PARAM_VALUE); |
| |
| replay(request, filterConfig, filterChain); |
| |
| guiceFilter.init(filterConfig); |
| guiceFilter.doFilter(request, null, filterChain); |
| |
| // join. |
| executor.shutdown(); |
| executor.awaitTermination(10, TimeUnit.SECONDS); |
| |
| assertEquals(PARAM_VALUE, injector.getInstance(OffRequestCallable.class).value); |
| verify(request, filterConfig, filterChain); |
| } |
| |
| public final void testRequestContinuationDiesInHttpRequestThread() |
| throws ServletException, IOException, InterruptedException { |
| executor = sameThreadExecutor; |
| injector = |
| Guice.createInjector( |
| new ServletModule() { |
| @Override |
| protected void configureServlets() { |
| serve("/*").with(ContinuingServlet.class); |
| |
| bind(ExecutorService.class).toInstance(executor); |
| |
| bind(SomeObject.class); |
| } |
| }); |
| |
| FilterConfig filterConfig = createMock(FilterConfig.class); |
| expect(filterConfig.getServletContext()).andReturn(createMock(ServletContext.class)); |
| |
| GuiceFilter guiceFilter = injector.getInstance(GuiceFilter.class); |
| |
| HttpServletRequest request = createMock(HttpServletRequest.class); |
| |
| expect(request.getRequestURI()).andReturn("/"); |
| expect(request.getContextPath()).andReturn("").anyTimes(); |
| |
| expect(request.getMethod()).andReturn("GET"); |
| expect(request.getCookies()).andReturn(new Cookie[0]); |
| FilterChain filterChain = createMock(FilterChain.class); |
| |
| replay(request, filterConfig, filterChain); |
| |
| guiceFilter.init(filterConfig); |
| guiceFilter.doFilter(request, null, filterChain); |
| |
| // join. |
| executor.shutdown(); |
| executor.awaitTermination(10, TimeUnit.SECONDS); |
| |
| assertTrue(failed.get()); |
| assertFalse(PARAM_VALUE.equals(injector.getInstance(OffRequestCallable.class).value)); |
| |
| verify(request, filterConfig, filterChain); |
| } |
| |
| @RequestScoped |
| public static class SomeObject {} |
| |
| @Singleton |
| public static class ContinuingServlet extends HttpServlet { |
| @Inject OffRequestCallable callable; |
| @Inject ExecutorService executorService; |
| |
| private SomeObject someObject; |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse resp) |
| throws ServletException, IOException { |
| assertNull(someObject); |
| |
| // Seed with someobject. |
| someObject = new SomeObject(); |
| Callable<String> task = |
| ServletScopes.continueRequest( |
| callable, ImmutableMap.<Key<?>, Object>of(Key.get(SomeObject.class), someObject)); |
| |
| executorService.submit(task); |
| } |
| } |
| |
| @Singleton |
| public static class OffRequestCallable implements Callable<String> { |
| @Inject Provider<HttpServletRequest> request; |
| @Inject Provider<HttpServletResponse> response; |
| @Inject Provider<SomeObject> someObject; |
| |
| public String value; |
| |
| @Override |
| public String call() throws Exception { |
| assertNull(response.get()); |
| |
| // Inside this request, we should always get the same instance. |
| assertSame(someObject.get(), someObject.get()); |
| |
| return value = request.get().getParameter(PARAM_NAME); |
| } |
| } |
| } |