/* * Copyright 1999-2015 dangdang.com. *
* 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 com.dangdang.ddframe.rdb.sharding.routing.type.hint; import com.dangdang.ddframe.rdb.sharding.api.BaseShardingValue; import com.dangdang.ddframe.rdb.sharding.api.rule.DataSourceRule; import com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy; import com.dangdang.ddframe.rdb.sharding.hint.HintManagerHolder; import com.dangdang.ddframe.rdb.sharding.hint.ShardingKey; import com.dangdang.ddframe.rdb.sharding.routing.type.RoutingEngine; import com.dangdang.ddframe.rdb.sharding.routing.type.RoutingResult; import com.dangdang.ddframe.rdb.sharding.routing.type.TableUnit; import com.google.common.base.Optional; import com.google.common.base.Preconditions; import lombok.RequiredArgsConstructor; import lombok.extern.slf4j.Slf4j; import java.util.Collection; import java.util.Collections; /** * Database hint only routing engine. * * @author gaohongtao * @author zhangliang */ @RequiredArgsConstructor @Slf4j public final class DatabaseHintRoutingEngine implements RoutingEngine { private final DataSourceRule dataSourceRule; private final DatabaseShardingStrategy databaseShardingStrategy; @Override public RoutingResult route() { Optional