CommandSupport.java

/**
 * MIT License
 *
 * Copyright (c) 2017 zgqq
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package mah.command;

import mah.action.ActionHandler;
import mah.command.event.CommonFilterEvent;
import mah.command.event.InitializeEvent;
import mah.command.event.TriggerEvent;
import mah.event.EventHandler;

import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

/**
 * Created by zgq on 2017-01-09 09:10
 */
public abstract class CommandSupport implements ActionHandler, Command {
    private static final ExecutorService EXECUTOR = Executors.newCachedThreadPool();
    private final List<EventHandler<? extends InitializeEvent>> initializeHandlers = new ArrayList<>(3);
    private final List<EventHandler<? extends TriggerEvent>> triggerEventHandlers = new ArrayList<>(3);
    private final List<EventHandler<? extends CommonFilterEvent>> commonFilterEventHandlers = new ArrayList<>(3);

    @Override
    public List<EventHandler<? extends CommonFilterEvent>> getCommonFilterEventHandlers() {
        return commonFilterEventHandlers;
    }

    @Override
    public List<EventHandler<? extends InitializeEvent>> getInitializeHandlers() {
        return initializeHandlers;
    }

    @Override
    public List<EventHandler<? extends TriggerEvent>> getTriggerEventHandlers() {
        return triggerEventHandlers;
    }

    protected final <T> Future<T> submit(Callable<T> task) {
        return getExecutor().submit(task);
    }

    protected final Future<?> submit(Runnable task) {
        return getExecutor().submit(task);
    }

    protected final ExecutorService getExecutor() {
        return EXECUTOR;
    }

    protected final URL getResource(String path) {
        return getClass().getClassLoader().getResource(path);
    }

    @Deprecated
    protected final InputStream getInputStreamFromClasspath(String path) {
        return CommandSupport.class.getClassLoader().getResourceAsStream(path);
    }

    protected final void addTriggerEventHandler(EventHandler<? extends TriggerEvent> handler) {
        this.triggerEventHandlers.add(handler);
    }

    protected final void addCommonFilterEventHandler(EventHandler<? extends CommonFilterEvent> handler) {
        this.commonFilterEventHandlers.add(handler);
    }

    protected final void addInitializeEventHandler(EventHandler<? extends InitializeEvent> handler) {
        this.initializeHandlers.add(handler);
    }

    @Override
    public String toString() {
        return "CommandSupport{"
                + ",name=" + getName() + "}";
    }
}