001/*
002 *  Copyright (c) 2022-2025, Mybatis-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.mybatisflex.core.tenant;
017
018import java.util.function.Supplier;
019
020public class TenantManager {
021
022    private TenantManager() {
023    }
024
025    private static final ThreadLocal<Boolean> ignoreFlags = new ThreadLocal<>();
026
027    private static TenantFactory tenantFactory;
028
029    public static TenantFactory getTenantFactory() {
030        return tenantFactory;
031    }
032
033    public static void setTenantFactory(TenantFactory tenantFactory) {
034        TenantManager.tenantFactory = tenantFactory;
035    }
036
037    /**
038     * 忽略 tenant 条件
039     */
040    public static <T> T withoutTenantCondition(Supplier<T> supplier) {
041        try {
042            ignoreTenantCondition();
043            return supplier.get();
044        } finally {
045            restoreTenantCondition();
046        }
047    }
048
049    /**
050     * 忽略 tenant 条件
051     */
052    public static void withoutTenantCondition(Runnable runnable) {
053        try {
054            ignoreTenantCondition();
055            runnable.run();
056        } finally {
057            restoreTenantCondition();
058        }
059    }
060
061
062    /**
063     * 忽略 tenant 条件
064     */
065    public static void ignoreTenantCondition() {
066        ignoreFlags.set(Boolean.TRUE);
067    }
068
069    /**
070     * 是否忽略 tenant 条件
071     */
072    public static boolean isIgnoreTenantCondition() {
073        return Boolean.TRUE.equals(ignoreFlags.get());
074    }
075
076    /**
077     * 恢复 tenant 条件
078     */
079    public static void restoreTenantCondition() {
080        ignoreFlags.remove();
081    }
082
083    /**
084     * @deprecated 使用 {@link #getTenantIds(String)} 代替。
085     */
086    @Deprecated
087    public static Object[] getTenantIds() {
088        return getTenantIds(null);
089    }
090
091    public static Object[] getTenantIds(String tableName) {
092        if (isIgnoreTenantCondition()) {
093            return null;
094        }
095        return tenantFactory != null ? tenantFactory.getTenantIds(tableName) : null;
096    }
097
098
099}