75 lines
2.2 KiB
Java
75 lines
2.2 KiB
Java
/*
|
|
* Copyright (c) 2018. Ernesto Castellotti <erny.castell@gmail.com>
|
|
* This file is part of JTdlib.
|
|
*
|
|
* JTdlib is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License.
|
|
*
|
|
* JTdlib 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 Lesser General Public License
|
|
* along with JTdlib. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package it.ernytech.tdbot;
|
|
|
|
import it.ernytech.tdlib.TdApi;
|
|
|
|
import java.lang.reflect.Field;
|
|
import java.util.concurrent.ConcurrentHashMap;
|
|
|
|
/**
|
|
* Identify the class by using the Constructor.
|
|
*/
|
|
public class ConstructorDetector {
|
|
private static ConcurrentHashMap<Integer, Class> constructorHashMap;
|
|
|
|
/**
|
|
* Initialize the ConstructorDetector, it is called from the Init class.
|
|
*/
|
|
public static void init() {
|
|
if (constructorHashMap != null) {
|
|
return;
|
|
}
|
|
|
|
Class[] classes = TdApi.class.getDeclaredClasses();
|
|
setConstructorHashMap(classes);
|
|
}
|
|
|
|
/**
|
|
* Identify the class.
|
|
* @param CONSTRUCTOR CONSTRUCTOR of the Tdlib API.
|
|
* @return The class related to CONSTRUCTOR.
|
|
*/
|
|
public static Class getClass(int CONSTRUCTOR) {
|
|
return constructorHashMap.getOrDefault(CONSTRUCTOR, null);
|
|
}
|
|
|
|
private static void setConstructorHashMap(Class[] tdApiClasses) {
|
|
constructorHashMap = new ConcurrentHashMap<>();
|
|
|
|
for (Class apiClass : tdApiClasses) {
|
|
Field CONSTRUCTORField;
|
|
int CONSTRUCTOR;
|
|
|
|
try {
|
|
CONSTRUCTORField = apiClass.getDeclaredField("CONSTRUCTOR");
|
|
} catch (NoSuchFieldException e) {
|
|
continue;
|
|
}
|
|
|
|
try {
|
|
CONSTRUCTOR = CONSTRUCTORField.getInt(null);
|
|
} catch (IllegalAccessException e) {
|
|
continue;
|
|
}
|
|
|
|
constructorHashMap.put(CONSTRUCTOR, apiClass);
|
|
}
|
|
}
|
|
}
|