Close Bug:443 - Implement ImmediateEventExecutor wrapper to config-subsystem.

[controller.git] / opendaylight / config / netty-event-executor-config / src / main / java / org / opendaylight / controller / config / yang / netty / eventexecutor / AutoCloseableEventExecutor.java

diff --git a/opendaylight/config/netty-event-executor-config/src/main/java/org/opendaylight/controller/config/yang/netty/eventexecutor/AutoCloseableEventExecutor.java b/opendaylight/config/netty-event-executor-config/src/main/java/org/opendaylight/controller/config/yang/netty/eventexecutor/AutoCloseableEventExecutor.java
new file mode 100644 (file)
index 0000000..69ea51f
--- /dev/null
+++ b/opendaylight/config/netty-event-executor-config/src/main/java/org/opendaylight/controller/config/yang/netty/eventexecutor/AutoCloseableEventExecutor.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.config.yang.netty.eventexecutor;
+
+import com.google.common.reflect.AbstractInvocationHandler;
+import com.google.common.reflect.Reflection;
+import io.netty.util.concurrent.EventExecutor;
+
+import java.lang.reflect.Method;
+import java.util.concurrent.TimeUnit;
+
+public interface AutoCloseableEventExecutor extends EventExecutor, AutoCloseable {
+
+
+    public static class CloseableEventExecutorMixin implements AutoCloseable {
+        public static final int DEFAULT_SHUTDOWN_SECONDS = 1;
+        private final EventExecutor eventExecutor;
+
+        public CloseableEventExecutorMixin(EventExecutor eventExecutor) {
+            this.eventExecutor = eventExecutor;
+        }
+
+        @Override
+        public void close() {
+            eventExecutor.shutdownGracefully(0, DEFAULT_SHUTDOWN_SECONDS, TimeUnit.SECONDS);
+        }
+
+
+        public static AutoCloseable createCloseableProxy(final EventExecutor eventExecutor) {
+            final CloseableEventExecutorMixin closeableGlobalEventExecutorMixin =
+                    new CloseableEventExecutorMixin(eventExecutor);
+            return Reflection.newProxy(AutoCloseableEventExecutor.class, new AbstractInvocationHandler() {
+                @Override
+                protected Object handleInvocation(Object proxy, Method method, Object[] args) throws Throwable {
+                    if (method.getName().equals("close")) {
+                        closeableGlobalEventExecutorMixin.close();
+                        return null;
+                    } else {
+                        return method.invoke(eventExecutor, args);
+                    }
+                }
+            });
+        }
+
+
+    }
+}
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