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Posted to commits@camel.apache.org by da...@apache.org on 2010/06/17 09:41:31 UTC

svn commit: r955499 - in /camel/trunk/camel-core/src: main/java/org/apache/camel/processor/ test/java/org/apache/camel/processor/async/

Author: davsclaus
Date: Thu Jun 17 07:41:30 2010
New Revision: 955499

URL: http://svn.apache.org/viewvc?rev=955499&view=rev
Log:
CAMEL-2723: Added more tests. CAMEL-2825: Fixed continued not being logged by default by error handler.

Added:
    camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionHandledTest.java   (contents, props changed)
      - copied, changed from r955488, camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionTest.java
    camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorContinueTest.java   (with props)
    camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorTest.java
      - copied, changed from r955480, camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointTest.java
Removed:
    camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionTest.java
Modified:
    camel/trunk/camel-core/src/main/java/org/apache/camel/processor/RedeliveryErrorHandler.java
    camel/trunk/camel-core/src/main/java/org/apache/camel/processor/UnitOfWorkProcessor.java

Modified: camel/trunk/camel-core/src/main/java/org/apache/camel/processor/RedeliveryErrorHandler.java
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/main/java/org/apache/camel/processor/RedeliveryErrorHandler.java?rev=955499&r1=955498&r2=955499&view=diff
==============================================================================
--- camel/trunk/camel-core/src/main/java/org/apache/camel/processor/RedeliveryErrorHandler.java (original)
+++ camel/trunk/camel-core/src/main/java/org/apache/camel/processor/RedeliveryErrorHandler.java Thu Jun 17 07:41:30 2010
@@ -117,25 +117,9 @@ public abstract class RedeliveryErrorHan
                 // or the dead letter queue
                 Processor target = data.failureProcessor != null ? data.failureProcessor : data.deadLetterProcessor;
                 // deliver to the failure processor (either an on exception or dead letter queue
-                deliverToFailureProcessor(target, exchange, data);
-                // prepare the exchange for failure before returning
-                prepareExchangeAfterFailure(exchange, data);
-                // fire event if we had a failure processor to handle it
-                if (target != null) {
-                    boolean deadLetterChannel = target == data.deadLetterProcessor && data.deadLetterProcessor != null;
-                    EventHelper.notifyExchangeFailureHandled(exchange.getContext(), exchange, target, deadLetterChannel);
-                }
-
-                boolean shouldContinue = shouldContinue(exchange, data);
-                if (shouldContinue) {
-                    // okay we want to continue then prepare the exchange for that as well
-                    prepareExchangeForContinue(exchange, data);
-                }
-
-                // we are breaking out so invoke the callback
-                callback.done(data.sync);
-                // and then return
-                return data.sync;
+                boolean sync = deliverToFailureProcessor(target, exchange, data, callback);
+                // we are breaking out
+                return sync;
             }
 
             if (shouldRedeliver && data.redeliveryCounter > 0) {
@@ -173,6 +157,7 @@ public abstract class RedeliveryErrorHan
                     if (!isDone(exchange)) {
                         // TODO: async process redelivery (eg duplicate the error handler logic)
                         // And have a timer task scheduled when redelivery should occur to avoid blocking thread
+                        log.debug("Not done continuing error handling asynchronously: " + exchange);
                     } else {
                         callback.done(sync);
                     }
@@ -325,6 +310,7 @@ public abstract class RedeliveryErrorHan
                     + " before its redelivered");
         }
 
+        // run this synchronously as its just a Processor
         try {
             data.onRedeliveryProcessor.process(exchange);
         } catch (Exception e) {
@@ -336,8 +322,9 @@ public abstract class RedeliveryErrorHan
     /**
      * All redelivery attempts failed so move the exchange to the dead letter queue
      */
-    protected void deliverToFailureProcessor(final Processor processor, final Exchange exchange,
-                                             final RedeliveryData data) {
+    protected boolean deliverToFailureProcessor(final Processor processor, final Exchange exchange,
+                                                final RedeliveryData data, final AsyncCallback callback) {
+        boolean sync = true;
 
         Exception caught = exchange.getException();
 
@@ -346,7 +333,8 @@ public abstract class RedeliveryErrorHan
         exchange.setException(null);
 
         boolean handled = false;
-        if (data.handledPredicate != null && data.handledPredicate.matches(exchange)) {
+        // regard both handled or continued as being handled
+        if (shouldHandled(exchange, data) || shouldContinue(exchange, data)) {
             // its handled then remove traces of redelivery attempted
             exchange.getIn().removeHeader(Exchange.REDELIVERED);
             exchange.getIn().removeHeader(Exchange.REDELIVERY_COUNTER);
@@ -357,10 +345,12 @@ public abstract class RedeliveryErrorHan
             decrementRedeliveryCounter(exchange);
         }
 
-        // reset cached streams so they can be read again
-        MessageHelper.resetStreamCache(exchange.getIn());
-
+        // is the a failure processor to process the Exchange
         if (processor != null) {
+
+            // reset cached streams so they can be read again
+            MessageHelper.resetStreamCache(exchange.getIn());
+
             // prepare original IN body if it should be moved instead of current body
             if (data.useOriginalInMessage) {
                 if (log.isTraceEnabled()) {
@@ -374,14 +364,38 @@ public abstract class RedeliveryErrorHan
             if (log.isTraceEnabled()) {
                 log.trace("Failure processor " + processor + " is processing Exchange: " + exchange);
             }
+
+            // store the last to endpoint as the failure endpoint
+            exchange.setProperty(Exchange.FAILURE_ENDPOINT, exchange.getProperty(Exchange.TO_ENDPOINT));
+
+            // the failure processor could also be asynchronous
+            AsyncProcessor afp = AsyncProcessorTypeConverter.convert(processor);
+            sync = afp.process(exchange, new AsyncCallback() {
+                public void done(boolean sync) {
+                    if (log.isTraceEnabled()) {
+                        log.trace("Failure processor done: " + processor + " processing Exchange: " + exchange);
+                    }
+                    try {
+                        prepareExchangeAfterFailure(exchange, data);
+                        // fire event as we had a failure processor to handle it
+                        boolean deadLetterChannel = processor == data.deadLetterProcessor && data.deadLetterProcessor != null;
+                        EventHelper.notifyExchangeFailureHandled(exchange.getContext(), exchange, processor, deadLetterChannel);
+                    } finally {
+                        // if the fault was handled asynchronously, this should be reflected in the callback as well
+                        data.sync &= sync;
+                        callback.done(data.sync);
+                    }
+                }
+            });
+        } else {
             try {
-                // store the last to endpoint as the failure endpoint
-                exchange.setProperty(Exchange.FAILURE_ENDPOINT, exchange.getProperty(Exchange.TO_ENDPOINT));
-                processor.process(exchange);
-            } catch (Exception e) {
-                exchange.setException(e);
+                // no processor but we need to prepare after failure as well
+                prepareExchangeAfterFailure(exchange, data);
+            } finally {
+                // indicate we are done synchronously
+                data.sync = true;
+                callback.done(data.sync);
             }
-            log.trace("Failure processor done");
         }
 
         // create log message
@@ -393,6 +407,8 @@ public abstract class RedeliveryErrorHan
 
         // log that we failed delivery as we are exhausted
         logFailedDelivery(false, handled, false, exchange, msg, data, null);
+
+        return sync;
     }
 
     protected void prepareExchangeAfterFailure(final Exchange exchange, final RedeliveryData data) {
@@ -417,21 +433,26 @@ public abstract class RedeliveryErrorHan
             return;
         }
 
-        Predicate handledPredicate = data.handledPredicate;
-        if (handledPredicate == null || !handledPredicate.matches(exchange)) {
+        if (shouldHandled(exchange, data)) {
+            if (log.isDebugEnabled()) {
+                log.debug("This exchange is handled so its marked as not failed: " + exchange);
+            }
+            exchange.setProperty(Exchange.ERRORHANDLER_HANDLED, Boolean.TRUE);
+        } else if (shouldContinue(exchange, data)) {
             if (log.isDebugEnabled()) {
-                log.debug("This exchange is not handled so its marked as failed: " + exchange);
+                log.debug("This exchange is continued: " + exchange);
+            }
+            // okay we want to continue then prepare the exchange for that as well
+            prepareExchangeForContinue(exchange, data);
+        } else {
+            if (log.isDebugEnabled()) {
+                log.debug("This exchange is not handled or continued so its marked as failed: " + exchange);
             }
             // exception not handled, put exception back in the exchange
             exchange.setProperty(Exchange.ERRORHANDLER_HANDLED, Boolean.FALSE);
             exchange.setException(exchange.getProperty(Exchange.EXCEPTION_CAUGHT, Exception.class));
             // and put failure endpoint back as well
             exchange.setProperty(Exchange.FAILURE_ENDPOINT, exchange.getProperty(Exchange.TO_ENDPOINT));
-        } else {
-            if (log.isDebugEnabled()) {
-                log.debug("This exchange is handled so its marked as not failed: " + exchange);
-            }
-            exchange.setProperty(Exchange.ERRORHANDLER_HANDLED, Boolean.TRUE);
         }
     }
 
@@ -527,6 +548,21 @@ public abstract class RedeliveryErrorHan
     }
 
     /**
+     * Determines whether or not to handle if we are exhausted.
+     *
+     * @param exchange the current exchange
+     * @param data     the redelivery data
+     * @return <tt>true</tt> to handle, or <tt>false</tt> to exhaust.
+     */
+    private boolean shouldHandled(Exchange exchange, RedeliveryData data) {
+        if (data.handledPredicate != null) {
+            return data.handledPredicate.matches(exchange);
+        }
+        // do not handle by default
+        return false;
+    }
+
+    /**
      * Increments the redelivery counter and adds the redelivered flag if the
      * message has been redelivered
      */

Modified: camel/trunk/camel-core/src/main/java/org/apache/camel/processor/UnitOfWorkProcessor.java
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/main/java/org/apache/camel/processor/UnitOfWorkProcessor.java?rev=955499&r1=955498&r2=955499&view=diff
==============================================================================
--- camel/trunk/camel-core/src/main/java/org/apache/camel/processor/UnitOfWorkProcessor.java (original)
+++ camel/trunk/camel-core/src/main/java/org/apache/camel/processor/UnitOfWorkProcessor.java Thu Jun 17 07:41:30 2010
@@ -98,16 +98,18 @@ public final class UnitOfWorkProcessor e
     private void doneUow(DefaultUnitOfWork uow, Exchange exchange) {
         // unit of work is done
         try {
-            exchange.getUnitOfWork().done(exchange);
+            if (exchange.getUnitOfWork() != null) {
+                exchange.getUnitOfWork().done(exchange);
+            }
         } catch (Throwable e) {
             LOG.warn("Exception occurred during done UnitOfWork for Exchange: " + exchange
-                    + ". This exception will be ignored.");
+                    + ". This exception will be ignored.", e);
         }
         try {
             uow.stop();
         } catch (Throwable e) {
             LOG.warn("Exception occurred during stopping UnitOfWork for Exchange: " + exchange
-                    + ". This exception will be ignored.");
+                    + ". This exception will be ignored.", e);
         }
         exchange.setUnitOfWork(null);
     }

Copied: camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionHandledTest.java (from r955488, camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionTest.java)
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionHandledTest.java?p2=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionHandledTest.java&p1=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionTest.java&r1=955488&r2=955499&rev=955499&view=diff
==============================================================================
--- camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionTest.java (original)
+++ camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailedAfterOnExceptionHandledTest.java Thu Jun 17 07:41:30 2010
@@ -24,7 +24,7 @@ import org.apache.camel.builder.RouteBui
 /**
  * @version $Revision$
  */
-public class AsyncEndpointFailedAfterOnExceptionTest extends ContextTestSupport {
+public class AsyncEndpointFailedAfterOnExceptionHandledTest extends ContextTestSupport {
 
     private static String beforeThreadName;
     private static String afterThreadName;

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Added: camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorContinueTest.java
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorContinueTest.java?rev=955499&view=auto
==============================================================================
--- camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorContinueTest.java (added)
+++ camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorContinueTest.java Thu Jun 17 07:41:30 2010
@@ -0,0 +1,78 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.camel.processor.async;
+
+import org.apache.camel.ContextTestSupport;
+import org.apache.camel.Exchange;
+import org.apache.camel.Processor;
+import org.apache.camel.builder.RouteBuilder;
+
+/**
+ * @version $Revision$
+ */
+public class AsyncEndpointFailureProcessorContinueTest extends ContextTestSupport {
+
+    private static String beforeThreadName;
+    private static String afterThreadName;
+
+    public void testAsyncEndpoint() throws Exception {
+        getMockEndpoint("mock:before").expectedBodiesReceived("Hello Camel");
+        getMockEndpoint("mock:after").expectedBodiesReceived("MyFailureHandler");
+        getMockEndpoint("mock:result").expectedBodiesReceived("MyFailureHandler");
+
+        String reply = template.requestBody("direct:start", "Hello Camel", String.class);
+        assertEquals("Bye Camel", reply);
+
+        assertMockEndpointsSatisfied();
+
+        assertFalse("Should use different threads", beforeThreadName.equalsIgnoreCase(afterThreadName));
+    }
+
+    @Override
+    protected RouteBuilder createRouteBuilder() throws Exception {
+        return new RouteBuilder() {
+            @Override
+            public void configure() throws Exception {
+                context.addComponent("async", new MyAsyncComponent());
+
+                // the onException can be asynchronous as well so we have to test for that
+                onException(IllegalArgumentException.class).continued(true)
+                        .to("mock:before")
+                        .to("log:before")
+                        .process(new Processor() {
+                            public void process(Exchange exchange) throws Exception {
+                                beforeThreadName = Thread.currentThread().getName();
+                            }
+                        })
+                        .to("async:MyFailureHandler")
+                        .process(new Processor() {
+                            public void process(Exchange exchange) throws Exception {
+                                afterThreadName = Thread.currentThread().getName();
+                            }
+                        })
+                        .to("log:after")
+                        .to("mock:after");
+
+                from("direct:start")
+                        .throwException(new IllegalArgumentException("Damn"))
+                        .to("mock:result")
+                        .transform(constant("Bye Camel"));
+            }
+        };
+    }
+
+}
\ No newline at end of file

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Copied: camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorTest.java (from r955480, camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointTest.java)
URL: http://svn.apache.org/viewvc/camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorTest.java?p2=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorTest.java&p1=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointTest.java&r1=955480&r2=955499&rev=955499&view=diff
==============================================================================
--- camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointTest.java (original)
+++ camel/trunk/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointFailureProcessorTest.java Thu Jun 17 07:41:30 2010
@@ -24,15 +24,15 @@ import org.apache.camel.builder.RouteBui
 /**
  * @version $Revision$
  */
-public class AsyncEndpointTest extends ContextTestSupport {
+public class AsyncEndpointFailureProcessorTest extends ContextTestSupport {
 
     private static String beforeThreadName;
     private static String afterThreadName;
 
     public void testAsyncEndpoint() throws Exception {
         getMockEndpoint("mock:before").expectedBodiesReceived("Hello Camel");
-        getMockEndpoint("mock:after").expectedBodiesReceived("Bye Camel");
-        getMockEndpoint("mock:result").expectedBodiesReceived("Bye Camel");
+        getMockEndpoint("mock:after").expectedBodiesReceived("MyFailureHandler");
+        getMockEndpoint("mock:result").expectedMessageCount(0);
 
         String reply = template.requestBody("direct:start", "Hello Camel", String.class);
         assertEquals("Bye Camel", reply);
@@ -49,7 +49,8 @@ public class AsyncEndpointTest extends C
             public void configure() throws Exception {
                 context.addComponent("async", new MyAsyncComponent());
 
-                from("direct:start")
+                // the onException can be asynchronous as well so we have to test for that
+                onException(IllegalArgumentException.class).handled(true)
                         .to("mock:before")
                         .to("log:before")
                         .process(new Processor() {
@@ -57,7 +58,7 @@ public class AsyncEndpointTest extends C
                                 beforeThreadName = Thread.currentThread().getName();
                             }
                         })
-                        .to("async:Bye Camel")
+                        .to("async:MyFailureHandler")
                         .process(new Processor() {
                             public void process(Exchange exchange) throws Exception {
                                 afterThreadName = Thread.currentThread().getName();
@@ -65,9 +66,13 @@ public class AsyncEndpointTest extends C
                         })
                         .to("log:after")
                         .to("mock:after")
+                        .transform(constant("Bye Camel"));
+
+                from("direct:start")
+                        .throwException(new IllegalArgumentException("Damn"))
                         .to("mock:result");
             }
         };
     }
 
-}
+}
\ No newline at end of file