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Event driven architecture refactored.

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1. Renamed Message to Event and Event to AbstractEvent
2. Generified Event and Handler
3. Updated EventDispatcher to make unsafe configuration impossible
4. Updated UML diagram accordingly
This commit is contained in:
Oleg
2016-03-08 00:56:08 -08:00
parent 35d6a54831
commit afb897300b
13 changed files with 115 additions and 131 deletions
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14
event-driven-architecture/src/test/java/com/iluwatar/eda/framework/EventDispatcherTest.java
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@@ -22,7 +22,6 @@
*/
package com.iluwatar.eda.framework;
import com.iluwatar.eda.framework.EventDispatcher;
import com.iluwatar.eda.event.UserCreatedEvent;
import com.iluwatar.eda.event.UserUpdatedEvent;
import com.iluwatar.eda.handler.UserCreatedEventHandler;
@@ -49,8 +48,8 @@ public class EventDispatcherTest {
EventDispatcher dispatcher = spy(new EventDispatcher());
UserCreatedEventHandler userCreatedEventHandler = spy(new UserCreatedEventHandler());
UserUpdatedEventHandler userUpdatedEventHandler = spy(new UserUpdatedEventHandler());
dispatcher.registerChannel(UserCreatedEvent.class, userCreatedEventHandler);
dispatcher.registerChannel(UserUpdatedEvent.class, userUpdatedEventHandler);
dispatcher.registerHandler(UserCreatedEvent.class, userCreatedEventHandler);
dispatcher.registerHandler(UserUpdatedEvent.class, userUpdatedEventHandler);
User user = new User("iluwatar");
@@ -58,15 +57,14 @@ public class EventDispatcherTest {
UserUpdatedEvent userUpdatedEvent = new UserUpdatedEvent(user);
//fire a userCreatedEvent and verify that userCreatedEventHandler has been invoked.
dispatcher.onEvent(userCreatedEvent);
dispatcher.dispatch(userCreatedEvent);
verify(userCreatedEventHandler).onEvent(userCreatedEvent);
verify(dispatcher).onEvent(userCreatedEvent);
verify(dispatcher).dispatch(userCreatedEvent);
//fire a userCreatedEvent and verify that userUpdatedEventHandler has been invoked.
dispatcher.onEvent(userUpdatedEvent);
dispatcher.dispatch(userUpdatedEvent);
verify(userUpdatedEventHandler).onEvent(userUpdatedEvent);
verify(dispatcher).onEvent(userUpdatedEvent);
verify(dispatcher).dispatch(userUpdatedEvent);
}
}