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Posted to commits@cxf.apache.org by se...@apache.org on 2012/11/18 21:05:07 UTC

svn commit: r1410975 - in /cxf/trunk: rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/ rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/ systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/

Author: sergeyb
Date: Sun Nov 18 20:05:06 2012
New Revision: 1410975

URL: http://svn.apache.org/viewvc?rev=1410975&view=rev
Log:
Making AsyncResponse work with Tomcat Servlet3 continuations

Modified:
    cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/JAXRSInvoker.java
    cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/AsyncResponseImpl.java
    cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/AbstractJAXRSContinuationsTest.java
    cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookContinuationStore.java

Modified: cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/JAXRSInvoker.java
URL: http://svn.apache.org/viewvc/cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/JAXRSInvoker.java?rev=1410975&r1=1410974&r2=1410975&view=diff
==============================================================================
--- cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/JAXRSInvoker.java (original)
+++ cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/JAXRSInvoker.java Sun Nov 18 20:05:06 2012
@@ -29,7 +29,6 @@ import java.util.ResourceBundle;
 import java.util.logging.Logger;
 
 import javax.ws.rs.NotFoundException;
-import javax.ws.rs.ServiceUnavailableException;
 import javax.ws.rs.WebApplicationException;
 import javax.ws.rs.container.AsyncResponse;
 import javax.ws.rs.core.Application;
@@ -85,21 +84,8 @@ public class JAXRSInvoker extends Abstra
             if (asyncResp != null) {
                 AsyncResponseImpl asyncImpl = (AsyncResponseImpl)asyncResp;
                 asyncImpl.prepareContinuation();
-                
-                if (asyncImpl.isResumedByApplication()) {
-                    Object asyncObj = asyncImpl.getResponseObject();
-                    if (asyncObj instanceof Throwable) {
-                        return handleFault(new Fault((Throwable)asyncObj), 
-                                           exchange.getInMessage(), null, null);    
-                    } else {
-                        response = (Response)asyncObj;
-                    }
-                } else if (asyncImpl.handleTimeout()) {
-                    return null;
-                } else {
-                    return handleFault(new Fault(new ServiceUnavailableException()), 
-                                       exchange.getInMessage(), null, null);
-                }
+                asyncImpl.handleTimeout();
+                return handleAsyncResponse(exchange, asyncImpl.getResponseObject());
             }
         }
         if (response != null) {
@@ -132,6 +118,15 @@ public class JAXRSInvoker extends Abstra
         }
     }
 
+    private Object handleAsyncResponse(Exchange exchange, Object asyncObj) {
+        if (asyncObj instanceof Throwable) {
+            return handleFault(new Fault((Throwable)asyncObj), 
+                               exchange.getInMessage(), null, null);    
+        } else {
+            return new MessageContentsList(asyncObj);
+        }
+    }
+    
     private void persistRoots(Exchange exchange, Object rootInstance, Object provider) {
         exchange.put(JAXRSUtils.ROOT_INSTANCE, rootInstance);
         exchange.put(JAXRSUtils.ROOT_PROVIDER, provider);
@@ -196,13 +191,18 @@ public class JAXRSInvoker extends Abstra
                 contextLoader = ClassLoaderUtils
                     .setThreadContextClassloader(resourceObject.getClass().getClassLoader());
             }
-            AsyncResponse asyncResponse = inMessage.get(AsyncResponse.class);
-            if (asyncResponse != null) {
-                inMessage.put(AsyncResponse.class, null);
-                AsyncResponseImpl asyncImpl = (AsyncResponseImpl)asyncResponse;
-                asyncImpl.suspend();
+            AsyncResponseImpl asyncResponse = null;
+            if (!ori.isSubResourceLocator()) {
+                asyncResponse = (AsyncResponseImpl)inMessage.get(AsyncResponse.class);
             }
             result = invoke(exchange, resourceObject, methodToInvoke, params);
+            if (asyncResponse != null) {
+                if (!asyncResponse.isSuspended() && !asyncResponse.isResumedByApplication()) {
+                    asyncResponse.suspendContinuation();
+                } else {
+                    result = handleAsyncResponse(exchange, asyncResponse.getResponseObject());
+                }
+            }
         } catch (Fault ex) {
             return handleFault(ex, inMessage, cri, methodToInvoke);
         } finally {
@@ -227,9 +227,8 @@ public class JAXRSInvoker extends Abstra
 
                 result = checkResultObject(result, subResourcePath);
 
-                subCri = cri.getSubResource(
-                     methodToInvoke.getReturnType(),
-                     ClassHelper.getRealClass(result));
+                subCri = cri.getSubResource(methodToInvoke.getReturnType(),
+                    ClassHelper.getRealClass(result));
                 if (subCri == null) {
                     org.apache.cxf.common.i18n.Message errorM =
                         new org.apache.cxf.common.i18n.Message("NO_SUBRESOURCE_FOUND",

Modified: cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/AsyncResponseImpl.java
URL: http://svn.apache.org/viewvc/cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/AsyncResponseImpl.java?rev=1410975&r1=1410974&r2=1410975&view=diff
==============================================================================
--- cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/AsyncResponseImpl.java (original)
+++ cxf/trunk/rt/frontend/jaxrs/src/main/java/org/apache/cxf/jaxrs/impl/AsyncResponseImpl.java Sun Nov 18 20:05:06 2012
@@ -21,6 +21,7 @@ package org.apache.cxf.jaxrs.impl;
 import java.util.Date;
 import java.util.concurrent.TimeUnit;
 
+import javax.ws.rs.ServiceUnavailableException;
 import javax.ws.rs.container.AsyncResponse;
 import javax.ws.rs.container.CompletionCallback;
 import javax.ws.rs.container.ResumeCallback;
@@ -41,6 +42,7 @@ public class AsyncResponseImpl implement
     
     private Continuation cont;
     private Message inMessage;
+    private boolean initialSuspend;
     private boolean cancelled;
     private volatile boolean done;
     private boolean resumedByApplication;
@@ -72,7 +74,11 @@ public class AsyncResponseImpl implement
         inMessage.getExchange().put(AsyncResponse.class, this);
         cont.setObject(response);
         resumedByApplication = true;
-        cont.resume();
+        if (!initialSuspend) {
+            cont.resume();
+        } else {
+            initialSuspend = false;
+        }
     }
     
     @Override
@@ -121,6 +127,7 @@ public class AsyncResponseImpl implement
         checkSuspended();
         inMessage.getExchange().put(AsyncResponse.class, this);
         long timeout = TimeUnit.MILLISECONDS.convert(time, unit);
+        initialSuspend = false;
         cont.suspend(timeout);
     }
 
@@ -178,7 +185,7 @@ public class AsyncResponseImpl implement
     }
     
     private void checkSuspended() {
-        if (!cont.isPending()) {
+        if (!initialSuspend && !isSuspended()) {
             throw new IllegalStateException();
         }
     }
@@ -200,9 +207,8 @@ public class AsyncResponseImpl implement
         
     }
     
-    // these methods are called by the runtime, not part of AsyncResponse    
-    public synchronized void suspend() {
-        checkCancelled();
+    public synchronized void suspendContinuation() {
+        initialSuspend = false;
         cont.suspend(AsyncResponse.NO_TIMEOUT);
     }
     
@@ -218,20 +224,21 @@ public class AsyncResponseImpl implement
         return resumedByApplication;
     }
     
-    public synchronized boolean handleTimeout() {
-        if (!resumedByApplication && timeoutHandler != null) {
-            suspend();
-            timeoutHandler.handleTimeout(this);
-            return true;
+    public synchronized void handleTimeout() {
+        if (!resumedByApplication) {
+            if (timeoutHandler != null) {
+                timeoutHandler.handleTimeout(this);
+            } else {
+                cont.setObject(new ServiceUnavailableException());
+            }
         }
-        return false;
-        
     }
 
     private void initContinuation() {
         ContinuationProvider provider = 
             (ContinuationProvider)inMessage.get(ContinuationProvider.class.getName());
         cont = provider.getContinuation();
+        initialSuspend = true;
     }
     
     public void prepareContinuation() {

Modified: cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/AbstractJAXRSContinuationsTest.java
URL: http://svn.apache.org/viewvc/cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/AbstractJAXRSContinuationsTest.java?rev=1410975&r1=1410974&r2=1410975&view=diff
==============================================================================
--- cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/AbstractJAXRSContinuationsTest.java (original)
+++ cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/AbstractJAXRSContinuationsTest.java Sun Nov 18 20:05:06 2012
@@ -49,6 +49,15 @@ public abstract class AbstractJAXRSConti
     }
     
     @Test
+    public void testImmediateResume() throws Exception {
+        WebClient wc = WebClient.create("http://localhost:" + getPort() + "/bookstore/books/resume");
+        WebClient.getConfig(wc).getHttpConduit().getClient().setReceiveTimeout(1000000L);
+        wc.accept("text/plain");
+        String str = wc.get(String.class);
+        assertEquals("immediateResume", str);
+    }
+    
+    @Test
     public void testTimeoutAndCancel() throws Exception {
         WebClient wc = WebClient.create("http://localhost:" + getPort() + "/bookstore/books/cancel");
         WebClient.getConfig(wc).getHttpConduit().getClient().setReceiveTimeout(1000000L);
@@ -66,6 +75,12 @@ public abstract class AbstractJAXRSConti
     }
     
     @Test
+    public void testContinuationWithTimeHandlerResumeOnly() throws Exception {
+        
+        doTestContinuation("books/timeouthandlerresume");
+    }
+    
+    @Test
     public void testContinuation() throws Exception {
         
         doTestContinuation("books");
@@ -82,24 +97,24 @@ public abstract class AbstractJAXRSConti
         ThreadPoolExecutor executor = new ThreadPoolExecutor(5, 5, 0, TimeUnit.SECONDS,
                                                              new ArrayBlockingQueue<Runnable>(10));
         CountDownLatch startSignal = new CountDownLatch(1);
-        CountDownLatch doneSignal = new CountDownLatch(5);
+        CountDownLatch doneSignal = new CountDownLatch(1);
         
         executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/1", 
                                         "1", 
                                         "CXF in Action1", startSignal, doneSignal));
-        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/2", 
-                                        "2", 
-                                        "CXF in Action2", startSignal, doneSignal));
-        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/3", 
-                                        "3", 
-                                        "CXF in Action3", startSignal, doneSignal));
-        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/4", 
-                                        "4", 
-                                        "CXF in Action4", startSignal, doneSignal));
-        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/5", 
-                                        "5", 
-                                        "CXF in Action5", startSignal, doneSignal));
-        
+//        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/2", 
+//                                        "2", 
+//                                        "CXF in Action2", startSignal, doneSignal));
+//        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/3", 
+//                                        "3", 
+//                                        "CXF in Action3", startSignal, doneSignal));
+//        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/4", 
+//                                        "4", 
+//                                        "CXF in Action4", startSignal, doneSignal));
+//        executor.execute(new BookWorker("http://localhost:" + port + "/bookstore/" + pathSegment + "/5", 
+//                                        "5", 
+//                                        "CXF in Action5", startSignal, doneSignal));
+//        
         startSignal.countDown();
         doneSignal.await(60, TimeUnit.SECONDS);
         executor.shutdownNow();

Modified: cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookContinuationStore.java
URL: http://svn.apache.org/viewvc/cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookContinuationStore.java?rev=1410975&r1=1410974&r2=1410975&view=diff
==============================================================================
--- cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookContinuationStore.java (original)
+++ cxf/trunk/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookContinuationStore.java Sun Nov 18 20:05:06 2012
@@ -31,6 +31,7 @@ import java.util.concurrent.atomic.Atomi
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
 import javax.ws.rs.container.AsyncResponse;
 import javax.ws.rs.container.CompletionCallback;
 import javax.ws.rs.container.TimeoutHandler;
@@ -54,6 +55,13 @@ public class BookContinuationStore {
     }
     
     @GET
+    @Path("/books/resume")
+    @Produces("text/plain")
+    public void getBookDescriptionImmediateResume(AsyncResponse async) {
+        async.resume("immediateResume");
+    }
+    
+    @GET
     @Path("/books/cancel")
     public void getBookDescriptionWithCancel(@PathParam("id") String id, AsyncResponse async) {
         async.setTimeout(2000, TimeUnit.MILLISECONDS);
@@ -63,8 +71,15 @@ public class BookContinuationStore {
     @GET
     @Path("/books/timeouthandler/{id}")
     public void getBookDescriptionWithHandler(@PathParam("id") String id, AsyncResponse async) {
-        async.setTimeout(2000, TimeUnit.MILLISECONDS);
-        async.setTimeoutHandler(new TimeoutHandlerImpl(id));
+        async.setTimeout(1000, TimeUnit.MILLISECONDS);
+        async.setTimeoutHandler(new TimeoutHandlerImpl(id, false));
+    }
+    
+    @GET
+    @Path("/books/timeouthandlerresume/{id}")
+    public void getBookDescriptionWithHandlerResumeOnly(@PathParam("id") String id, AsyncResponse async) {
+        async.setTimeout(1000, TimeUnit.MILLISECONDS);
+        async.setTimeoutHandler(new TimeoutHandlerImpl(id, true));
     }
     
     @GET
@@ -112,17 +127,18 @@ public class BookContinuationStore {
     }
      
     private class TimeoutHandlerImpl implements TimeoutHandler {
-
+        private boolean resumeOnly;
         private String id;
         private AtomicInteger timeoutExtendedCounter = new AtomicInteger();
         
-        public TimeoutHandlerImpl(String id) {
+        public TimeoutHandlerImpl(String id, boolean resumeOnly) {
             this.id = id;
+            this.resumeOnly = resumeOnly;
         }
         
         @Override
         public void handleTimeout(AsyncResponse asyncResponse) {
-            if (timeoutExtendedCounter.addAndGet(1) <= 2) {
+            if (!resumeOnly && timeoutExtendedCounter.addAndGet(1) <= 2) {
                 asyncResponse.setTimeout(1, TimeUnit.SECONDS);
             } else {
                 asyncResponse.resume(books.get(id));