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Utility library that provides EJB3-like features for CDI beans

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/*
 * Copyright 2021 OmniFaces
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.omnifaces.services.asynchronous;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import javax.naming.InitialContext;
import javax.naming.NamingException;

import jakarta.annotation.PostConstruct;
import jakarta.enterprise.context.ApplicationScoped;

@ApplicationScoped
public class ExecutorBean {
    
    private ExecutorService executorService;

    @PostConstruct
    public void init() {
        executorService = createExecutorService();
    }
    
    public ExecutorService getExecutorService() {
        return executorService;
    }
    
    private ExecutorService createExecutorService() {
        try {
            return (ExecutorService) new InitialContext().lookup("java:comp/env/concurrent/ThreadPool");
        } catch (NamingException e) {
            // Ignore
        }

        return Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
    }
    
}