added test case for the rejected execution counting/resetting (see SM…

…-2001 and SMX4-606)

git-svn-id: https://svn.apache.org/repos/asf/servicemix/utils/trunk@1022074 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/servicemix/executors/impl/ExecutorImpl.java

@@ -80,7 +80,7 @@ public int size() {
         return queue.size();
     }
 
-    ThreadPoolExecutor getThreadPoolExecutor() {
+    public ThreadPoolExecutor getThreadPoolExecutor() {
         return this.threadPool;
     }
 }

src/test/java/org/apache/servicemix/executors/RejectedExecutionTest.java

@@ -0,0 +1,106 @@
+/*
+ * 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.servicemix.executors;
+
+import java.util.concurrent.RejectedExecutionException;
+import java.util.concurrent.ThreadPoolExecutor.AbortPolicy;
+
+import junit.framework.TestCase;
+import org.apache.servicemix.executors.impl.ExecutorConfig;
+import org.apache.servicemix.executors.impl.ExecutorFactoryImpl;
+import org.apache.servicemix.executors.impl.ExecutorImpl;
+import org.apache.servicemix.executors.impl.ManagedExecutor;
+
+public class RejectedExecutionTest extends TestCase {
+
+    private ExecutorFactoryImpl factory;
+    private ExecutorImpl executor;
+    private ExecutorConfig config;
+    private ManagedExecutor managedExecutor;
+
+    @Override
+    protected void tearDown() throws Exception {
+        managedExecutor.getInternalExecutor().getThreadPoolExecutor().shutdown();
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        config = new ExecutorConfig();
+        config.setCorePoolSize(1);
+        config.setMaximumPoolSize(1);
+        config.setQueueSize(2);
+
+        factory = new ExecutorFactoryImpl();
+        factory.setDefaultConfig(config);
+        executor = (ExecutorImpl) factory.createExecutor("myExecutor");
+        executor.getThreadPoolExecutor().setRejectedExecutionHandler(new AbortPolicy());
+        managedExecutor = new ManagedExecutor("myExecutor", executor, config);
+    }
+
+    public void testExecutionRejectionIncrement() {
+        int counter = 0;
+        for (int i = 0; i < 10; i++) {
+            final int x = i;
+            try {
+                managedExecutor.execute(new Runnable() {
+                    public void run() {
+                        try {
+                            Thread.sleep(30000);
+                        } catch (InterruptedException ex) {
+                            // ignore
+                        }
+                    }
+                });
+            } catch (RejectedExecutionException ex) {
+                counter++;
+            }
+        }
+
+        managedExecutor.getInternalExecutor().getThreadPoolExecutor().shutdownNow();
+
+        assertEquals("The number of rejected execution exceptions does not fit.", counter, managedExecutor.getNumberOfRejectedExecutions());
+    }
+
+    public void testExecutionRejectionReset() {
+        int counter = 0;
+        for (int i = 0; i < 10; i++) {
+            final int x = i;
+            try {
+                managedExecutor.execute(new Runnable() {
+                    public void run() {
+                        try {
+                            Thread.sleep(30000);
+                        } catch (InterruptedException ex) {
+                            // ignore
+                        }
+                    }
+                });
+            } catch (RejectedExecutionException ex) {
+                counter++;
+            }
+        }
+
+        managedExecutor.getInternalExecutor().getThreadPoolExecutor().shutdownNow();
+
+        assertEquals("The number of rejected execution exceptions does not fit.", counter, managedExecutor.getNumberOfRejectedExecutions());
+
+        managedExecutor.reset();
+
+        assertEquals("The number of rejected execution exceptions after reset does not fit zero.", 0, managedExecutor.getNumberOfRejectedExecutions());
+    }
+}