Author: davsclaus
Date: Fri May 8 15:41:29 2009
New Revision: 773035
URL: http://svn.apache.org/viewvc?rev=773035&view=rev
Log:
CAMEL-1572: Added async sample for show and tell of the new Async API.
Added:
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
(with props)
Modified:
camel/trunk/camel-core/src/main/java/org/apache/camel/util/ExchangeHelper.java
camel/trunk/tests/camel-itest/src/test/resources/log4j.properties
Modified:
camel/trunk/camel-core/src/main/java/org/apache/camel/util/ExchangeHelper.java
URL:
http://svn.apache.org/viewvc/camel/trunk/camel-core/src/main/java/org/apache/camel/util/ExchangeHelper.java?rev=773035&r1=773034&r2=773035&view=diff
==============================================================================
---
camel/trunk/camel-core/src/main/java/org/apache/camel/util/ExchangeHelper.java
(original)
+++
camel/trunk/camel-core/src/main/java/org/apache/camel/util/ExchangeHelper.java
Fri May 8 15:41:29 2009
@@ -511,6 +511,9 @@
}
private static <T> T doExtractBody(CamelContext context, Object result,
Class<T> type) {
+ if (result == null) {
+ return null;
+ }
if (type.isAssignableFrom(result.getClass())) {
return type.cast(result);
}
Added:
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
URL:
http://svn.apache.org/viewvc/camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java?rev=773035&view=auto
==============================================================================
---
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
(added)
+++
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
Fri May 8 15:41:29 2009
@@ -0,0 +1,81 @@
+/**
+ * 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.itest.async;
+
+import java.util.concurrent.Future;
+
+import org.apache.camel.ContextTestSupport;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.component.mock.MockEndpoint;
+
+/**
+ * @version $Revision$
+ */
+public class HttpAsyncTest extends ContextTestSupport {
+
+ public void testAsyncAndSyncAtSameTimeWithHttp() throws Exception {
+ // START SNIPPET: e2
+ MockEndpoint mock = getMockEndpoint("mock:result");
+ // we expect the name job to be faster than the async job even though
the async job
+ // was started first
+ mock.expectedBodiesReceived("Claus", "Bye World");
+
+ // send a async request/reply message to the http endpoint
+ Future future =
template.asyncRequestBody("http://0.0.0.0:9080/myservice";, "Hello World");
+
+ // we got the future so in the meantime we can do other stuff, as this
is Camel
+ // so lets invoke another request/reply route but this time is
synchronous
+ String name = template.requestBody("direct:name", "Give me a name",
String.class);
+ assertEquals("Claus", name);
+
+ // okay we got a name and we have done some other work at the same time
+ // the async route is running, but now its about time to wait and get
+ // get the response from the async task
+
+ // so we use the async extract body to return a string body response
+ // this allows us to do this in a single code line instead of using the
+ // JDK Future API to get hold of it, but you can also use that if you
want
+ String response = template.asyncExtractBody(future, String.class);
+ assertEquals("Bye World", response);
+
+ assertMockEndpointsSatisfied();
+ // END SNIPPET: e2
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() throws Exception {
+ return new RouteBuilder() {
+ @Override
+ public void configure() throws Exception {
+ // START SNIPPET: e1
+ // the mocks are here for unit test
+
+ // some other service to return a name, this is invoked
+ // synhronously
+
from("direct:name").transform(constant("Claus")).to("mock:result");
+
+ // simulate a slow http service we want to invoke async
+ from("jetty:http://0.0.0.0:9080/myservice";)
+ .delay(1000)
+ .transform(constant("Bye World"))
+ .to("mock:result");
+ // END SNIPPET: e1
+ }
+ };
+ }
+
+}
Propchange:
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange:
camel/trunk/tests/camel-itest/src/test/java/org/apache/camel/itest/async/HttpAsyncTest.java
------------------------------------------------------------------------------
svn:keywords = Rev Date
Modified: camel/trunk/tests/camel-itest/src/test/resources/log4j.properties
URL:
http://svn.apache.org/viewvc/camel/trunk/tests/camel-itest/src/test/resources/log4j.properties?rev=773035&r1=773034&r2=773035&view=diff
==============================================================================
--- camel/trunk/tests/camel-itest/src/test/resources/log4j.properties (original)
+++ camel/trunk/tests/camel-itest/src/test/resources/log4j.properties Fri May
8 15:41:29 2009
@@ -23,7 +23,7 @@
log4j.logger.org.springframework=WARN
log4j.logger.org.apache.activemq=WARN
#log4j.logger.org.apache.camel=TRACE
-#log4j.logger.org.apache.camel=DEBUG
+log4j.logger.org.apache.camel=DEBUG
#log4j.logger.org.apache.camel.component.file=TRACE
# CONSOLE appender not used by default
