MzzyCollectService/src/main/java/com/docus/server/collection/config/SystemMappingConfig.java

package com.docus.server.collection.config;

import com.docus.infrastructure.core.utils.TableJsonRead;
import lombok.Data;

import java.util.ArrayList;
import java.util.List;

/**
 * 系统映射配置
 *
 * @author wyb
 */
public class SystemMappingConfig {
    private static final String CONFIG_FILE_PATH = "dataConfig";
    private static final String CONFIG_FILE_NAME = "System-Mapping.json";
    private static volatile boolean FLUSH;
    private static volatile SystemMappingConfig INSTANCE;
    private final List<SystemMapping> systemMappingList;

    @Override
    public String toString() {
        return "SystemMappingConfig{" +
                "systemMappingList=" + systemMappingList +
                '}';
    }

    private SystemMappingConfig() {
        TableJsonRead jsonRead = new TableJsonRead();
        List<SystemMapping> list = jsonRead.Read(CONFIG_FILE_PATH, CONFIG_FILE_NAME, ArrayList.class);
        this.systemMappingList = list;
    }

    public static SystemMappingConfig getInstance() {
        if (INSTANCE == null || FLUSH) {
            synchronized (SystemMappingConfig.class) {
                if (INSTANCE == null || FLUSH) {
                    INSTANCE = new SystemMappingConfig();
                }
            }
        }
        return INSTANCE;
    }

    /**
     * 配置文件有更新，适用于不是程序动态改变的配置文件
     */
    public static void flush() {
        FLUSH = true;
    }

    public List<SystemMapping> getSystemMappingList() {
        return systemMappingList;
    }

    public static void main(String[] args) {
        SystemMappingConfig instance = getInstance();
        System.out.println(instance);
        SystemMappingConfig instance2 = getInstance();
        System.out.println(instance == instance2);
        SystemMappingConfig.flush();
        SystemMappingConfig instance3 = getInstance();
        System.out.println(instance3 == instance2);
    }

    @Data
    public static class SystemMapping {
        /**
         * 医院系统标识
         */
        private String hospital;
        /**
         * 无纸化医院标识
         */
        private String wzh;
    }
}