mirror of https://github.com/bvn13/sewy.git
53 lines
1.8 KiB
Java
53 lines
1.8 KiB
Java
/*
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Copyright 2022 Vyacheslav Boyko
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package me.bvn13.sewy;
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import java.lang.reflect.Constructor;
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import java.net.Socket;
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import java.util.function.Function;
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/**
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* Factory constructing client listeners
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*/
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class ClientListenerFactory {
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/**
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* Creates client listener constructor
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*
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* @param clientListenerClass class to be used as client listener
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* @param <T> generic type
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* @return lambda method to create client listener
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*/
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@SuppressWarnings("unchecked")
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static <T extends AbstractClientListener> Function<Socket, T> createClientListenerConstructor(Class clientListenerClass) {
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if (clientListenerClass.getGenericSuperclass() == null) {
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throw new IllegalArgumentException("Wrong client listener of type: " + clientListenerClass.getName());
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}
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return (client) -> {
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try {
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final Constructor<CommandClientListener> constructor = clientListenerClass.getDeclaredConstructor(Socket.class);
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constructor.setAccessible(true);
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return (T) constructor.newInstance(client);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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};
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}
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}
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