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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 cn.hippo4j.config.springboot.starter.refresher;

import cn.hippo4j.common.api.ThreadPoolDynamicRefresh;
import cn.hippo4j.common.api.ThreadPoolInitRefresh;
import cn.hippo4j.common.config.ApplicationContextHolder;
import cn.hippo4j.common.toolkit.CollectionUtil;
import cn.hippo4j.config.springboot.starter.config.BootstrapConfigProperties;
import cn.hippo4j.config.springboot.starter.parser.ConfigParserHandler;
import cn.hippo4j.config.springboot.starter.refresher.event.Hippo4jConfigDynamicRefreshEvent;
import cn.hippo4j.core.executor.support.ThreadPoolBuilder;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.InitializingBean;

import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ExecutorService;

/**
 * Abstract core thread-pool dynamic refresh.
 */
@Slf4j
public abstract class AbstractConfigThreadPoolDynamicRefresh
        implements
            ThreadPoolDynamicRefresh,
            ThreadPoolInitRefresh,
            InitializingBean {

    private final BootstrapConfigPropertiesBinderAdapt bootstrapConfigPropertiesBinderAdapt;

    protected BootstrapConfigProperties bootstrapConfigProperties;

    protected final ExecutorService dynamicRefreshExecutorService = ThreadPoolBuilder.builder().singlePool("client.dynamic.refresh").build();

    public AbstractConfigThreadPoolDynamicRefresh() {
        bootstrapConfigProperties = ApplicationContextHolder.getBean(BootstrapConfigProperties.class);
        bootstrapConfigPropertiesBinderAdapt = ApplicationContextHolder.getBean(BootstrapConfigPropertiesBinderAdapt.class);
    }

    @Override
    public void initRefresh(String context) {
        dynamicRefresh(context);
    }

    @Override
    public void dynamicRefresh(String configContent) {
        dynamicRefresh(configContent, null);
    }

    @Override
    public void dynamicRefresh(String configContent, Map newValueChangeMap) {
        try {
            Map configInfo = ConfigParserHandler.getInstance().parseConfig(configContent, bootstrapConfigProperties.getConfigFileType());
            if (CollectionUtil.isNotEmpty(newValueChangeMap)) {
                Optional.ofNullable(configInfo).ifPresent(each -> each.putAll(newValueChangeMap));
            }
            BootstrapConfigProperties binderCoreProperties = bootstrapConfigPropertiesBinderAdapt.bootstrapCorePropertiesBinder(configInfo, bootstrapConfigProperties);
            ApplicationContextHolder.getInstance().publishEvent(new Hippo4jConfigDynamicRefreshEvent(this, binderCoreProperties));
        } catch (Exception ex) {
            log.error("Hippo-4J core dynamic refresh failed.", ex);
        }
    }
}