package cn.lihu.jh.framework.tenant.core.service;
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import cn.lihu.jh.framework.common.exception.ServiceException;
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import cn.lihu.jh.framework.common.util.cache.CacheUtils;
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import cn.lihu.jh.module.system.api.tenant.TenantApi;
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import com.google.common.cache.CacheLoader;
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import com.google.common.cache.LoadingCache;
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import lombok.RequiredArgsConstructor;
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import lombok.SneakyThrows;
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import java.time.Duration;
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import java.util.List;
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/**
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* Tenant 框架 Service 实现类
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*
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* @author 芋道源码
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*/
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@RequiredArgsConstructor
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public class TenantFrameworkServiceImpl implements TenantFrameworkService {
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private static final ServiceException SERVICE_EXCEPTION_NULL = new ServiceException();
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private final TenantApi tenantApi;
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/**
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* 针对 {@link #getTenantIds()} 的缓存
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*/
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private final LoadingCache<Object, List<Long>> getTenantIdsCache = CacheUtils.buildAsyncReloadingCache(
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Duration.ofMinutes(1L), // 过期时间 1 分钟
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new CacheLoader<Object, List<Long>>() {
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@Override
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public List<Long> load(Object key) {
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return tenantApi.getTenantIdList();
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}
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});
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/**
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* 针对 {@link #validTenant(Long)} 的缓存
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*/
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private final LoadingCache<Long, ServiceException> validTenantCache = CacheUtils.buildAsyncReloadingCache(
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Duration.ofMinutes(1L), // 过期时间 1 分钟
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new CacheLoader<Long, ServiceException>() {
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@Override
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public ServiceException load(Long id) {
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try {
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tenantApi.validateTenant(id);
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return SERVICE_EXCEPTION_NULL;
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} catch (ServiceException ex) {
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return ex;
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}
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}
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});
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@Override
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@SneakyThrows
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public List<Long> getTenantIds() {
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return getTenantIdsCache.get(Boolean.TRUE);
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}
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@Override
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public void validTenant(Long id) {
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ServiceException serviceException = validTenantCache.getUnchecked(id);
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if (serviceException != SERVICE_EXCEPTION_NULL) {
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throw serviceException;
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}
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}
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}
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