Made time limit for event processing configurable; cleaned-up duplicate code.

Change-Id: I08e7f1c9f4cdbd6404f1eb5e3544989e7a728d92
diff --git a/core/common/src/test/java/org/onosproject/common/event/impl/TestEventDispatcher.java b/core/common/src/test/java/org/onosproject/common/event/impl/TestEventDispatcher.java
new file mode 100644
index 0000000..4ea371a
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/common/event/impl/TestEventDispatcher.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014-2015 Open Networking Laboratory
+ *
+ * Licensed 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.onosproject.common.event.impl;
+
+import org.onosproject.event.DefaultEventSinkRegistry;
+import org.onosproject.event.Event;
+import org.onosproject.event.EventDeliveryService;
+import org.onosproject.event.EventSink;
+
+import static com.google.common.base.Preconditions.checkState;
+
+/**
+ * Implements event delivery system that delivers events synchronously, or
+ * in-line with the post method invocation.
+ */
+public class TestEventDispatcher extends DefaultEventSinkRegistry
+        implements EventDeliveryService {
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public synchronized void post(Event event) {
+        EventSink sink = getSink(event.getClass());
+        checkState(sink != null, "No sink for event %s", event);
+        sink.process(event);
+    }
+
+    @Override
+    public void setDispatchTimeLimit(long millis) {
+    }
+
+    @Override
+    public long getDispatchTimeLimit() {
+        return 0;
+    }
+}