/*
*
* PlaceholderAPI
* Copyright (C) 2019 Ryan McCarthy
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
*
*/
package me.clip.placeholderapi.expansion;
import me.clip.placeholderapi.PlaceholderAPI;
import me.clip.placeholderapi.PlaceholderAPIPlugin;
import me.clip.placeholderapi.PlaceholderHook;
import me.clip.placeholderapi.expansion.cloud.CloudExpansion;
import me.clip.placeholderapi.util.FileUtil;
import org.bukkit.Bukkit;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.event.Listener;
import java.io.File;
import java.lang.reflect.Constructor;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
public final class ExpansionManager {
private final PlaceholderAPIPlugin plugin;
public ExpansionManager(PlaceholderAPIPlugin instance) {
plugin = instance;
File f = new File(PlaceholderAPIPlugin.getInstance().getDataFolder(), "expansions");
if (!f.exists()) {
f.mkdirs();
}
}
public PlaceholderExpansion getRegisteredExpansion(String name) {
for (Entry hook : PlaceholderAPI.getPlaceholders().entrySet()) {
if (hook.getValue() instanceof PlaceholderExpansion) {
if (name.equalsIgnoreCase(hook.getKey())) {
return (PlaceholderExpansion) hook.getValue();
}
}
}
return null;
}
public boolean registerExpansion(PlaceholderExpansion expansion) {
if (expansion == null || expansion.getIdentifier() == null) {
return false;
}
if (expansion instanceof Configurable) {
Map defaults = ((Configurable) expansion).getDefaults();
String pre = "expansions." + expansion.getIdentifier() + ".";
FileConfiguration cfg = plugin.getConfig();
boolean save = false;
if (defaults != null) {
for (Entry entries : defaults.entrySet()) {
if (entries.getKey() == null || entries.getKey().isEmpty()) {
continue;
}
if (entries.getValue() == null) {
if (cfg.contains(pre + entries.getKey())) {
save = true;
cfg.set(pre + entries.getKey(), null);
}
} else {
if (!cfg.contains(pre + entries.getKey())) {
save = true;
cfg.set(pre + entries.getKey(), entries.getValue());
}
}
}
}
if (save) {
plugin.saveConfig();
plugin.reloadConfig();
}
}
if (expansion instanceof VersionSpecific) {
VersionSpecific nms = (VersionSpecific) expansion;
if (!nms.isCompatibleWith(PlaceholderAPIPlugin.getServerVersion())) {
plugin.getLogger()
.info(
"Your server version is not compatible with expansion: " + expansion.getIdentifier()
+ " version: " + expansion.getVersion());
return false;
}
}
if (!expansion.canRegister()) {
return false;
}
if (!expansion.register()) {
return false;
}
if (expansion instanceof Listener) {
Listener l = (Listener) expansion;
Bukkit.getPluginManager().registerEvents(l, plugin);
}
plugin.getLogger().info("Successfully registered expansion: " + expansion.getIdentifier());
if (expansion instanceof Taskable) {
((Taskable) expansion).start();
}
if (plugin.getExpansionCloud() != null) {
CloudExpansion ce = plugin.getExpansionCloud().getCloudExpansion(expansion.getIdentifier());
if (ce != null) {
ce.setHasExpansion(true);
if (!ce.getLatestVersion().equals(expansion.getVersion())) {
ce.setShouldUpdate(true);
}
}
}
return true;
}
public PlaceholderExpansion registerExpansion(String fileName) {
List> subs = FileUtil.getClasses("expansions", fileName, PlaceholderExpansion.class);
if (subs == null || subs.isEmpty()) {
return null;
}
// only register the first instance found as an expansion jar should only have 1 class
// extending PlaceholderExpansion
PlaceholderExpansion ex = createInstance(subs.get(0));
if (registerExpansion(ex)) {
return ex;
}
return null;
}
public void registerAllExpansions() {
if (plugin == null) {
return;
}
List> subs = FileUtil.getClasses("expansions", null, PlaceholderExpansion.class);
if (subs == null || subs.isEmpty()) {
return;
}
for (Class> klass : subs) {
PlaceholderExpansion ex = createInstance(klass);
if (ex != null) {
try {
registerExpansion(ex);
} catch (Exception e) {
plugin.getLogger().info("Couldn't register " + ex.getIdentifier() + " expansion");
e.printStackTrace();
}
}
}
}
private PlaceholderExpansion createInstance(Class> klass) {
if (klass == null) {
return null;
}
PlaceholderExpansion ex = null;
if (!PlaceholderExpansion.class.isAssignableFrom(klass)) {
return null;
}
try {
Constructor>[] c = klass.getConstructors();
if (c.length == 0) {
ex = (PlaceholderExpansion) klass.newInstance();
} else {
for (Constructor> con : c) {
if (con.getParameterTypes().length == 0) {
ex = (PlaceholderExpansion) klass.newInstance();
break;
}
}
}
} catch (Throwable t) {
plugin.getLogger()
.severe("Failed to init placeholder expansion from class: " + klass.getName());
plugin.getLogger().severe(t.getMessage());
}
return ex;
}
}