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integrate dbVisitor and Hasor, make Hasor easier to use JDBC/ORM.

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/*
 * Copyright 2015-2022 the original author or authors.
 *
 * 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 net.hasor.dbvisitor;
import net.hasor.cobble.logging.Logger;
import net.hasor.core.AppContext;
import net.hasor.core.BindInfo;
import net.hasor.core.EventListener;
import net.hasor.dbvisitor.dal.mapper.Mapper;
import net.hasor.dbvisitor.dal.repository.RefMapper;
import net.hasor.dbvisitor.dal.session.DalSession;

import java.io.IOException;
import java.util.function.Supplier;

import static net.hasor.core.AppContext.ContextEvent_Started;

/**
 * BeanFactory that enables injection of DalSession.
 * @version : 2022-04-29
 * @author 赵永春 ([email protected])
 * @see Mapper
 */
class DalMapperSupplier implements Supplier, EventListener {
    private final static Logger               logger = Logger.getLogger(DalMapperSupplier.class);
    private final        Class             mapperInterface;
    private final        BindInfo dalSessionInfo;
    private              Object               mapperObject;

    public DalMapperSupplier(Class mapperInterface, BindInfo dalSessionInfo) {
        this.mapperInterface = mapperInterface;
        this.dalSessionInfo = dalSessionInfo;
    }

    @Override
    public void onEvent(String event, AppContext eventData) throws IOException, ReflectiveOperationException {
        if (!ContextEvent_Started.equals(event)) {
            return;
        }

        if (this.mapperInterface == null) {
            throw new NullPointerException("mapperInterface is null.");
        }
        if (this.dalSessionInfo == null) {
            throw new IllegalStateException("dalSession is null.");
        }

        DalSession dalSession = eventData.getInstance(this.dalSessionInfo);

        RefMapper refMapper = this.mapperInterface.getAnnotation(RefMapper.class);
        if (refMapper != null) {
            logger.info("mapper '" + this.mapperInterface + "' using '" + refMapper.value() + "'");
            dalSession.getDalRegistry().loadMapper(this.mapperInterface);
        } else {
            logger.info("mapper '" + this.mapperInterface + "' using default.");
        }

        this.mapperObject = dalSession.createMapper(this.mapperInterface);
    }

    @Override
    public Object get() {
        return mapperObject;
    }
}    

    

    

            

    

            



    
    






    
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