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/*
 * Copyright 2008-2024 wangsheng
 *
 * 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
 *
 *      https://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.hhao.common.mybatis.page.executor;

import com.hhao.common.log.Logger;
import com.hhao.common.log.LoggerFactory;
import com.hhao.common.mybatis.page.PageInfo;
import com.hhao.common.mybatis.page.PageInfoWithCountMappedStatement;
import com.hhao.common.mybatis.page.PageMetaData;
import org.apache.ibatis.cache.CacheKey;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;

import java.util.Collections;
import java.util.List;

/**
 * 单语句静态分页执行器
 * 适用于JDBC只支持单语句执行的情况
 * 由用户自己定义分页查询语句与count语句，执行器完成count语句的入参与织入
 * count语句通过PageInfoWithCount#countMappedStatementId指定
 * 该执行器不受数据库语言差异的影响，分页查询语句及count语句完全由用户提供，执行效率较高
 *
 * @author Wang
 * @since 2021 /11/22 20:23
 */
public class SingleQueryStaticPageExecutor extends AbstractPageExecutor {
    /**
     * The Logger.
     */
    private static final Logger log = LoggerFactory.getLogger(SingleQueryStaticPageExecutor.class);
    private final String DOT=".";

    @Override
    public Object execute(Invocation invocation, PageInfo pageInfo) throws Throwable {
        //取出各种参数
        Executor executor=this.getExecutor(invocation);
        if (executor==null){
            log.info("SingleQueryStaticPageExecutor need org.apache.ibatis.executor.Executor,Please change other PageExecutor.");
            return invocation.proceed();
        }
        MappedStatement mappedStatement=this.getMappedStatement(invocation);
        RowBounds rowBounds=this.getRowBounds(invocation);
        ResultHandler resultHandler=this.getResultHandler(invocation);
        Object parameter=this.getParameter(invocation);
        BoundSql boundSql=mappedStatement.getBoundSql(parameter);
        List