/
InternalEventScriptEvent.java
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/
InternalEventScriptEvent.java
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package com.denizenscript.denizen.events.server;
import com.denizenscript.denizen.Denizen;
import com.denizenscript.denizen.events.BukkitScriptEvent;
import com.denizenscript.denizen.utilities.BukkitImplDeprecations;
import com.denizenscript.denizencore.utilities.debugging.Debug;
import com.denizenscript.denizencore.objects.ObjectTag;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.objects.core.ListTag;
import com.denizenscript.denizencore.utilities.CoreConfiguration;
import com.denizenscript.denizencore.utilities.CoreUtilities;
import com.denizenscript.denizencore.utilities.ReflectionHelper;
import org.bukkit.event.*;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.RegisteredListener;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.*;
public class InternalEventScriptEvent extends BukkitScriptEvent implements Listener {
// <--[event]
// @Events
// internal bukkit event
//
// @Switch event:<path> (required) to specify the Bukkit event path to use (like "event:org.bukkit.event.block.BlockBreakEvent")
//
// @Warning This exists primarily for testing/debugging, and is almost never a good idea to include in a real script.
//
// @Group Server
//
// @Cancellable true
//
// @Triggers when the specified internal Bukkit event fires. Useful for testing/debugging, or for interoperation with external plugins that have their own Bukkit events. Get the raw event via 'context.reflect_event'.
//
// -->
public InternalEventScriptEvent() {
registerCouldMatcher("internal bukkit event");
registerSwitches("event");
}
@Override
public boolean couldMatch(ScriptPath path) {
if (!super.couldMatch(path)) {
return false;
}
if (!path.switches.containsKey("event")) {
return false;
}
return true;
}
@Override
public boolean matches(ScriptPath path) {
if (!currentEvent.getClass().getCanonicalName().equals(path.switches.get("event"))) {
return false;
}
return true;
}
@Override
public ObjectTag getContext(String name) {
switch (name) {
case "fields":
if (!CoreConfiguration.allowReflectionFieldReads) {
return null;
}
BukkitImplDeprecations.internalEventReflectionContext.warn();
ListTag result = new ListTag();
Class c = currentEvent.getClass();
while (c != null && c != Object.class) {
for (Map.Entry<String, Field> field : ReflectionHelper.getFields(c).entrySet()) {
if (!Modifier.isStatic(field.getValue().getModifiers())) {
result.addObject(new ElementTag(field.getKey(), true));
}
}
c = c.getSuperclass();
}
return result;
}
if (name.startsWith("field_")) {
if (!CoreConfiguration.allowReflectionFieldReads) {
return null;
}
BukkitImplDeprecations.internalEventReflectionContext.warn();
String fName = CoreUtilities.toLowerCase(name.substring("field_".length()));
Class c = currentEvent.getClass();
while (c != null && c != Object.class) {
ReflectionHelper.CheckingFieldMap fields = ReflectionHelper.getFields(c);
for (Map.Entry<String, Field> field : fields.entrySet()) {
if (!Modifier.isStatic(field.getValue().getModifiers()) && CoreUtilities.toLowerCase(field.getKey()).equals(fName)) {
Object val = null;
try {
val = field.getValue().get(currentEvent);
}
catch (Throwable ex) {
Debug.echoError(ex);
}
if (val != null) {
return CoreUtilities.objectToTagForm(val, CoreUtilities.errorButNoDebugContext, false, false, false);
}
}
}
c = c.getSuperclass();
}
}
return super.getContext(name);
}
@Override
public void destroy() {
if (registeredHandlers != null) {
for (Map.Entry<RegisteredListener, HandlerList> handler : registeredHandlers) {
handler.getValue().unregister(handler.getKey());
}
registeredHandlers = null;
}
}
@Override
public void init() {
registeredHandlers = new ArrayList<>();
HashSet<String> eventsGrabbed = new HashSet<>();
for (ScriptPath path : new ArrayList<>(eventPaths)) {
String eventName = path.switches.get("event");
if (!eventsGrabbed.add(eventName)) {
continue;
}
try {
Class<?> clazz = Class.forName(eventName);
if (!Event.class.isAssignableFrom(clazz)) {
Debug.echoError("Cannot initialize Internal Bukkit Event for event '" + eventName + "': that class is not an event class.");
return;
}
EventPriority priority = EventPriority.NORMAL;
String bukkitPriority = path.switches.get("bukkit_priority");
if (bukkitPriority != null) {
try {
priority = EventPriority.valueOf(bukkitPriority.toUpperCase());
}
catch (IllegalArgumentException ex) {
Debug.echoError("Invalid 'bukkit_priority' switch for event '" + path.event + "' in script '" + path.container.getName() + "'.");
Debug.echoError(ex);
}
}
InternalEventScriptEvent handler = (InternalEventScriptEvent) clone();
handler.eventPaths = new ArrayList<>();
handler.eventPaths.add(path);
handler.registeredHandlers = null;
handler.initForPriority(priority, this, (Class<? extends Event>) clazz);
eventPaths.remove(path);
}
catch (ClassNotFoundException ex) {
Debug.echoError("Cannot initialize Internal Bukkit Event for event '" + eventName + "': that event class does not exist.");
}
catch (Throwable ex) {
Debug.echoError(ex);
}
}
}
public void initForPriority(EventPriority priority, InternalEventScriptEvent baseEvent, Class<? extends Event> clazz) {
Plugin plugin = Denizen.getInstance();
for (Map.Entry<Class<? extends Event>, Set<RegisteredListener>> entry : plugin.getPluginLoader().createRegisteredListeners(this, plugin).entrySet()) {
for (RegisteredListener registeredListener : entry.getValue()) {
RegisteredListener newListener = new RegisteredListener(this, getExecutor(registeredListener), priority, plugin, false);
HandlerList handlers = getEventListeners(clazz);
handlers.register(newListener);
baseEvent.registeredHandlers.add(new HashMap.SimpleEntry<>(newListener, handlers));
}
}
}
@EventHandler
public void onEventHappens(Event event) {
fire(event);
}
}