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/*
 * Copyright 2018 Qunar, Inc.
 *
 * 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.
 */

package qunar.tc.qmq.backup.service;

import com.google.common.collect.Lists;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import qunar.tc.qmq.backup.base.Flushable;
import qunar.tc.qmq.backup.base.ScheduleFlushable;

import java.util.List;

/**
 * @author xufeng.deng [email protected]
 * @since 2018-12-03 10:31
 */
public class ScheduleFlushManager implements ScheduleFlushable {
    private static final Logger LOG = LoggerFactory.getLogger(ScheduleFlushManager.class);

    private List flushables = Lists.newArrayList();

    public void register(ScheduleFlushable flushable) {
        flushables.add(flushable);
    }

    @Override
    public void scheduleFlush() {
        flushables.parallelStream().forEach(ScheduleFlushable::scheduleFlush);
    }

    @Override
    public void flush() {
        flushables.parallelStream().forEach(Flushable::flush);
    }

    @Override
    public void destroy() {
        try {
            this.flush();
        } catch (Exception e) {
            LOG.error("schedule flush before close failed.", e);
        }
        flushables.forEach(flushable -> {
            try {
                flushable.destroy();
            } catch (Exception e) {
                LOG.error("close {} failed.", flushable);
            }
        });
    }
}