Minecraft/mc-core
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Extracted base EventLoop class

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Daniil
2018-07-25 21:06:58 +07:00
parent 944cd61c20
commit 5afd8d9871
2 changed files with 46 additions and 32 deletions
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41
event-loop/src/main/java/mc/core/events/BaseEventLoop.java Normal file
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@@ -0,0 +1,41 @@
package mc.core.events;
import lombok.extern.slf4j.Slf4j;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
@Slf4j
public abstract class BaseEventLoop implements EventLoop {
@Override
public void addEventHandler(Object object) {
for (Method method : object.getClass().getDeclaredMethods()) {
EventHandler annotation = method.getAnnotation(EventHandler.class);
if (annotation == null)
continue; // We are not interested in methods without @EventHandler annotation
if (!Modifier.isPublic(method.getModifiers())) {
log.error("Unable to register {} as an EventHandler. Method must have a 'private' access modifier.", method.toString());
continue;
}
if (method.getParameterCount() != 1) {
log.error("Unable to register {} as an EventHandler. Method must have exactly one argument.", method.toString());
continue;
}
Class<?> firstParamType = method.getParameterTypes()[0];
if (!Event.class.isAssignableFrom(firstParamType)) {
log.error("Unable to register {} as an EventHandler. First parameter type must implement 'Event' interface.", method.toString());
continue;
}
@SuppressWarnings("unchecked") Class<? extends Event> eventType = (Class<? extends Event>) firstParamType;
registerMethod(object, method, annotation, eventType);
}
}
protected abstract void registerMethod(Object object, Method method, EventHandler annotation, Class<? extends Event> eventType);
}

37
event-loop/src/main/java/mc/core/events/SimpleEventLoop.java
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@@ -10,7 +10,7 @@ import java.lang.reflect.Modifier;
import java.util.*;
@Slf4j
public class SimpleEventLoop implements EventLoop {
public class SimpleEventLoop extends BaseEventLoop {
private Map<Class<? extends Event>, List<ExecutorLink>> handlers = new HashMap<>();
@Override
@@ -27,39 +27,12 @@ public class SimpleEventLoop implements EventLoop {
}
}
@Override
public void addEventHandler(Object object) {
for (Method method : object.getClass().getDeclaredMethods()) {
EventHandler annotation = method.getAnnotation(EventHandler.class);
if (annotation == null)
continue; // We are not interested in methods without @EventHandler annotation
if (!Modifier.isPublic(method.getModifiers())) {
log.error("Unable to register {} as an EventHandler. Method must have a 'private' access modifier.", method.toString());
continue;
}
if (method.getParameterCount() != 1) {
log.error("Unable to register {} as an EventHandler. Method must have exactly one argument.", method.toString());
continue;
}
Class<?> firstParamType = method.getParameterTypes()[0];
if (!Event.class.isAssignableFrom(firstParamType)) {
log.error("Unable to register {} as an EventHandler. First parameter type must implement 'Event' interface.", method.toString());
continue;
}
@SuppressWarnings("unchecked") Class<? extends Event> eventType = (Class<? extends Event>) firstParamType;
List<ExecutorLink> eventHandlers = handlers.computeIfAbsent(eventType, s -> new ArrayList<>());
eventHandlers.add(new ExecutorLink(annotation.priority().getValue(), annotation.ignoreCancelled(), method, object));
eventHandlers.sort(Comparator.comparingInt(o -> o.priority));
}
protected void registerMethod(Object object, Method method, EventHandler annotation, Class<? extends Event> eventType) {
List<SimpleEventLoop.ExecutorLink> eventHandlers = handlers.computeIfAbsent(eventType, s -> new ArrayList<>());
eventHandlers.add(new SimpleEventLoop.ExecutorLink(annotation.priority().getValue(), annotation.ignoreCancelled(), method, object));
eventHandlers.sort(Comparator.comparingInt(o -> o.priority));
}
/**
* This class describes
*/