Author: dblevins
Date: Sat Apr 9 00:38:52 2011
New Revision: 1090498
URL: http://svn.apache.org/viewvc?rev=1090498&view=rev
Log:
OPENEJB-1511: Example: @Asynchronous Methods
Added:
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java
(with props)
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java
(with props)
Added:
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java
URL:
http://svn.apache.org/viewvc/openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java?rev=1090498&view=auto
==============================================================================
---
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java
(added)
+++
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java
Sat Apr 9 00:38:52 2011
@@ -0,0 +1,56 @@
+/**
+ * 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.superbiz.async;
+
+import javax.ejb.AccessTimeout;
+import javax.ejb.AsyncResult;
+import javax.ejb.Asynchronous;
+import javax.ejb.Lock;
+import javax.ejb.LockType;
+import javax.ejb.Singleton;
+import java.util.concurrent.Future;
+
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static javax.ejb.LockType.READ;
+
+/**
+ * @version $Revision$ $Date$
+ */
+@Singleton
+public class JobProcessor {
+
+ @Asynchronous
+ @Lock(READ)
+ @AccessTimeout(-1)
+ public Future<String> addJob(String jobName) {
+
+ // Pretend this job takes a while
+ doSomeHeavyLifting();
+
+ // Return our result
+ return new AsyncResult<String>(jobName);
+ }
+
+ private void doSomeHeavyLifting() {
+ try {
+ Thread.sleep(SECONDS.toMillis(10));
+ } catch (InterruptedException e) {
+ Thread.interrupted();
+ throw new IllegalStateException(e);
+ }
+ }
+}
Propchange:
openejb/trunk/openejb3/examples/async-methods/src/main/java/org/superbiz/async/JobProcessor.java
------------------------------------------------------------------------------
svn:eol-style = native
Added:
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java
URL:
http://svn.apache.org/viewvc/openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java?rev=1090498&view=auto
==============================================================================
---
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java
(added)
+++
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java
Sat Apr 9 00:38:52 2011
@@ -0,0 +1,65 @@
+/**
+ * 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.superbiz.async;
+
+import junit.framework.TestCase;
+
+import javax.ejb.embeddable.EJBContainer;
+import javax.naming.Context;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * @version $Revision$ $Date$
+ */
+public class JobProcessorTest extends TestCase {
+
+ public void test() throws Exception {
+
+ final Context context = EJBContainer.createEJBContainer().getContext();
+
+ final JobProcessor processor = (JobProcessor)
context.lookup("java:global/async-methods/JobProcessor");
+
+ final long start = System.nanoTime();
+
+ // Queue up a bunch of work
+ final Future<String> red = processor.addJob("red");
+ final Future<String> orange = processor.addJob("orange");
+ final Future<String> yellow = processor.addJob("yellow");
+ final Future<String> green = processor.addJob("green");
+ final Future<String> blue = processor.addJob("blue");
+ final Future<String> violet = processor.addJob("violet");
+
+ // Wait for the result -- 1 minute worth of work
+ assertEquals("blue", blue.get());
+ assertEquals("orange", orange.get());
+ assertEquals("green", green.get());
+ assertEquals("red", red.get());
+ assertEquals("yellow", yellow.get());
+ assertEquals("violet", violet.get());
+
+ // How long did it take?
+ final long total = TimeUnit.NANOSECONDS.toSeconds(System.nanoTime() -
start);
+
+ // Execution should be around 9 - 21 seconds
+ assertTrue("" + total, total > 9);
+ assertTrue("" + total, total < 21);
+
+ }
+
+
+}
Propchange:
openejb/trunk/openejb3/examples/async-methods/src/test/java/org/superbiz/async/JobProcessorTest.java
------------------------------------------------------------------------------
svn:eol-style = native
