PushClientFactory.java

/*
 * (C) Copyright 2015-2016 the original author or authors.
 *
 * 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
 *
 * http://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.
 *
 * Contributors:
 *   ohun@live.cn (夜色)
 */

package com.mpush.client.push;

import com.mpush.api.push.PushSender;
import com.mpush.api.spi.Spi;
import com.mpush.api.spi.client.PusherFactory;

/**
 * Created by yxx on 2016/5/18.
 *
 * @author ohun@live.cn
 */
@Spi
public class PushClientFactory implements PusherFactory {
    private volatile PushClient client;

    @Override
    public PushSender get() {
        if (client == null) {
            synchronized (PushClientFactory.class) {
                if (client == null) {
                    client = new PushClient();
                }
            }
        }
        return client;
    }
}