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/**
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * 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 io.gravitee.rest.api.service.impl;

import io.gravitee.common.service.AbstractService;
import io.gravitee.rest.api.service.InitializerService;
import io.gravitee.rest.api.service.Upgrader;
import java.util.Comparator;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

/**
 * @author David BRASSELY (david.brassely at graviteesource.com)
 * @author GraviteeSource Team
 */
@Component
public class UpgraderServiceImpl extends AbstractService implements InitializerService {

    /**
     * Logger.
     */
    private final Logger logger = LoggerFactory.getLogger(UpgraderServiceImpl.class);

    @Override
    protected String name() {
        return "Upgrader service";
    }

    @Override
    protected void doStart() throws Exception {
        super.doStart();

        Map upgraderBeans = applicationContext.getBeansOfType(Upgrader.class);
        upgraderBeans
            .values()
            .stream()
            .sorted(Comparator.comparing(Upgrader::getOrder))
            .forEach(
                upgrader -> {
                    logger.info("Running upgrader {}", upgrader.getClass().getName());
                    upgrader.upgrade();
                }
            );
    }
}