package org.dromara.generator.service;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.lang.Dict;
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import cn.hutool.core.util.ObjectUtil;
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import com.baomidou.dynamic.datasource.annotation.DS;
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import com.baomidou.dynamic.datasource.annotation.DSTransactional;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
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import com.baomidou.mybatisplus.core.incrementer.IdentifierGenerator;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.anyline.metadata.Column;
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import org.anyline.metadata.Table;
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import org.anyline.proxy.ServiceProxy;
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import org.apache.velocity.Template;
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import org.apache.velocity.VelocityContext;
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import org.apache.velocity.app.Velocity;
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import org.dromara.common.core.constant.Constants;
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import org.dromara.common.core.exception.ServiceException;
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import org.dromara.common.core.utils.SpringUtils;
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import org.dromara.common.core.utils.StreamUtils;
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import org.dromara.common.core.utils.StringUtils;
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import org.dromara.common.core.utils.file.FileUtils;
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import org.dromara.common.json.utils.JsonUtils;
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import org.dromara.common.mybatis.core.page.PageQuery;
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import org.dromara.common.mybatis.core.page.TableDataInfo;
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import org.dromara.generator.constant.GenConstants;
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import org.dromara.generator.domain.GenTable;
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import org.dromara.generator.domain.GenTableColumn;
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import org.dromara.generator.mapper.GenTableColumnMapper;
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import org.dromara.generator.mapper.GenTableMapper;
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import org.dromara.generator.util.GenUtils;
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import org.dromara.generator.util.VelocityInitializer;
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import org.dromara.generator.util.VelocityUtils;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.StringWriter;
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import java.nio.charset.StandardCharsets;
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import java.util.*;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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/**
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* 业务 服务层实现
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*
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* @author Lion Li
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*/
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@Slf4j
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@RequiredArgsConstructor
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@Service
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public class GenTableServiceImpl implements IGenTableService {
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private final GenTableMapper baseMapper;
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private final GenTableColumnMapper genTableColumnMapper;
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private final IdentifierGenerator identifierGenerator;
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private static final String[] TABLE_IGNORE = new String[]{"sj_", "flow_", "gen_"};
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/**
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* 查询业务字段列表
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*
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* @param tableId 业务字段编号
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* @return 业务字段集合
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*/
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@Override
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public List<GenTableColumn> selectGenTableColumnListByTableId(Long tableId) {
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return genTableColumnMapper.selectList(new LambdaQueryWrapper<GenTableColumn>()
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.eq(GenTableColumn::getTableId, tableId)
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.orderByAsc(GenTableColumn::getSort));
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}
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/**
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* 查询业务信息
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*
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* @param id 业务ID
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* @return 业务信息
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*/
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@Override
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public GenTable selectGenTableById(Long id) {
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GenTable genTable = baseMapper.selectGenTableById(id);
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setTableFromOptions(genTable);
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return genTable;
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}
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@Override
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public TableDataInfo<GenTable> selectPageGenTableList(GenTable genTable, PageQuery pageQuery) {
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Page<GenTable> page = baseMapper.selectPage(pageQuery.build(), this.buildGenTableQueryWrapper(genTable));
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return TableDataInfo.build(page);
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}
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private QueryWrapper<GenTable> buildGenTableQueryWrapper(GenTable genTable) {
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Map<String, Object> params = genTable.getParams();
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QueryWrapper<GenTable> wrapper = Wrappers.query();
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wrapper
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.eq(StringUtils.isNotEmpty(genTable.getDataName()), "data_name", genTable.getDataName())
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.like(StringUtils.isNotBlank(genTable.getTableName()), "lower(table_name)", StringUtils.lowerCase(genTable.getTableName()))
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.like(StringUtils.isNotBlank(genTable.getTableComment()), "lower(table_comment)", StringUtils.lowerCase(genTable.getTableComment()))
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.between(params.get("beginTime") != null && params.get("endTime") != null,
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"create_time", params.get("beginTime"), params.get("endTime"))
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.orderByDesc("update_time");
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return wrapper;
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}
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/**
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* 查询数据库列表
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*
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* @param genTable 包含查询条件的GenTable对象
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* @param pageQuery 包含分页信息的PageQuery对象
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* @return 包含分页结果的TableDataInfo对象
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*/
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@DS("#genTable.dataName")
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@Override
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public TableDataInfo<GenTable> selectPageDbTableList(GenTable genTable, PageQuery pageQuery) {
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// 获取查询条件
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String tableName = genTable.getTableName();
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String tableComment = genTable.getTableComment();
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LinkedHashMap<String, Table<?>> tablesMap = ServiceProxy.metadata().tables();
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if (CollUtil.isEmpty(tablesMap)) {
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return TableDataInfo.build();
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}
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List<String> tableNames = baseMapper.selectTableNameList(genTable.getDataName());
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String[] tableArrays;
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if (CollUtil.isNotEmpty(tableNames)) {
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tableArrays = tableNames.toArray(new String[0]);
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} else {
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tableArrays = new String[0];
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}
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// 过滤并转换表格数据
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List<GenTable> tables = tablesMap.values().stream()
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.filter(x -> !StringUtils.startWithAnyIgnoreCase(x.getName(), TABLE_IGNORE))
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.filter(x -> {
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if (CollUtil.isEmpty(tableNames)) {
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return true;
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}
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return !StringUtils.equalsAnyIgnoreCase(x.getName(), tableArrays);
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})
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.filter(x -> {
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boolean nameMatches = true;
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boolean commentMatches = true;
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// 进行表名称的模糊查询
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if (StringUtils.isNotBlank(tableName)) {
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nameMatches = StringUtils.containsIgnoreCase(x.getName(), tableName);
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}
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// 进行表描述的模糊查询
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if (StringUtils.isNotBlank(tableComment)) {
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commentMatches = StringUtils.containsIgnoreCase(x.getComment(), tableComment);
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}
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// 同时匹配名称和描述
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return nameMatches && commentMatches;
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})
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.map(x -> {
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GenTable gen = new GenTable();
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gen.setTableName(x.getName());
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gen.setTableComment(x.getComment());
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// postgresql的表元数据没有创建时间这个东西(好奇葩) 只能new Date代替
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gen.setCreateTime(ObjectUtil.defaultIfNull(x.getCreateTime(), new Date()));
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gen.setUpdateTime(x.getUpdateTime());
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return gen;
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}).sorted(Comparator.comparing(GenTable::getCreateTime).reversed())
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.toList();
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IPage<GenTable> page = pageQuery.build();
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page.setTotal(tables.size());
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// 手动分页 set数据
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page.setRecords(CollUtil.page((int) page.getCurrent() - 1, (int) page.getSize(), tables));
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return TableDataInfo.build(page);
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}
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/**
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* 查询据库列表
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*
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* @param tableNames 表名称组
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* @param dataName 数据源名称
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* @return 数据库表集合
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*/
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@DS("#dataName")
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@Override
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public List<GenTable> selectDbTableListByNames(String[] tableNames, String dataName) {
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Set<String> tableNameSet = new HashSet<>(List.of(tableNames));
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LinkedHashMap<String, Table<?>> tablesMap = ServiceProxy.metadata().tables();
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if (CollUtil.isEmpty(tablesMap)) {
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return new ArrayList<>();
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}
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List<Table<?>> tableList = tablesMap.values().stream()
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.filter(x -> !StringUtils.startWithAnyIgnoreCase(x.getName(), TABLE_IGNORE))
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.filter(x -> tableNameSet.contains(x.getName())).toList();
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if (CollUtil.isEmpty(tableList)) {
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return new ArrayList<>();
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}
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return tableList.stream().map(x -> {
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GenTable gen = new GenTable();
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gen.setDataName(dataName);
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gen.setTableName(x.getName());
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gen.setTableComment(x.getComment());
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gen.setCreateTime(x.getCreateTime());
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gen.setUpdateTime(x.getUpdateTime());
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return gen;
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}).toList();
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}
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/**
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* 查询所有表信息
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*
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* @return 表信息集合
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*/
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@Override
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public List<GenTable> selectGenTableAll() {
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return baseMapper.selectGenTableAll();
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}
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/**
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* 修改业务
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*
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* @param genTable 业务信息
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*/
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@Transactional(rollbackFor = Exception.class)
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@Override
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public void updateGenTable(GenTable genTable) {
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String options = JsonUtils.toJsonString(genTable.getParams());
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genTable.setOptions(options);
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int row = baseMapper.updateById(genTable);
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if (row > 0) {
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for (GenTableColumn cenTableColumn : genTable.getColumns()) {
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genTableColumnMapper.updateById(cenTableColumn);
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}
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}
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}
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/**
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* 删除业务对象
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*
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* @param tableIds 需要删除的数据ID
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*/
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@Transactional(rollbackFor = Exception.class)
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@Override
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public void deleteGenTableByIds(Long[] tableIds) {
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List<Long> ids = Arrays.asList(tableIds);
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baseMapper.deleteByIds(ids);
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genTableColumnMapper.delete(new LambdaQueryWrapper<GenTableColumn>().in(GenTableColumn::getTableId, ids));
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}
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/**
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* 导入表结构
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*
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* @param tableList 导入表列表
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* @param dataName 数据源名称
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*/
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@DSTransactional
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@Override
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public void importGenTable(List<GenTable> tableList, String dataName) {
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try {
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for (GenTable table : tableList) {
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String tableName = table.getTableName();
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GenUtils.initTable(table);
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table.setDataName(dataName);
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int row = baseMapper.insert(table);
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if (row > 0) {
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// 保存列信息
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List<GenTableColumn> genTableColumns = SpringUtils.getAopProxy(this).selectDbTableColumnsByName(tableName, dataName);
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List<GenTableColumn> saveColumns = new ArrayList<>();
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for (GenTableColumn column : genTableColumns) {
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GenUtils.initColumnField(column, table);
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saveColumns.add(column);
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}
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if (CollUtil.isNotEmpty(saveColumns)) {
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genTableColumnMapper.insertBatch(saveColumns);
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}
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}
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}
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} catch (Exception e) {
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throw new ServiceException("导入失败：" + e.getMessage());
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}
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}
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/**
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* 根据表名称查询列信息
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*
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* @param tableName 表名称
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* @param dataName 数据源名称
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* @return 列信息
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*/
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@DS("#dataName")
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@Override
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public List<GenTableColumn> selectDbTableColumnsByName(String tableName, String dataName) {
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Table<?> table = ServiceProxy.metadata().table(tableName);
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if (ObjectUtil.isNull(table)) {
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return new ArrayList<>();
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}
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LinkedHashMap<String, Column> columns = table.getColumns();
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List<GenTableColumn> tableColumns = new ArrayList<>();
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columns.forEach((columnName, column) -> {
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GenTableColumn tableColumn = new GenTableColumn();
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tableColumn.setIsPk(String.valueOf(column.isPrimaryKey()));
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tableColumn.setColumnName(column.getName());
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tableColumn.setColumnComment(column.getComment());
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tableColumn.setColumnType(column.getOriginType().toLowerCase());
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tableColumn.setSort(column.getPosition());
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tableColumn.setIsRequired(column.isNullable() == 0 ? "1" : "0");
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tableColumn.setIsIncrement(column.isAutoIncrement() == -1 ? "0" : "1");
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tableColumns.add(tableColumn);
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});
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return tableColumns;
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}
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/**
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* 预览代码
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*
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* @param tableId 表编号
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* @return 预览数据列表
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*/
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@Override
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public Map<String, String> previewCode(Long tableId) {
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Map<String, String> dataMap = new LinkedHashMap<>();
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// 查询表信息
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GenTable table = baseMapper.selectGenTableById(tableId);
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List<Long> menuIds = new ArrayList<>();
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for (int i = 0; i < 6; i++) {
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menuIds.add(identifierGenerator.nextId(null).longValue());
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}
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table.setMenuIds(menuIds);
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// 设置主键列信息
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setPkColumn(table);
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VelocityInitializer.initVelocity();
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VelocityContext context = VelocityUtils.prepareContext(table);
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// 获取模板列表
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List<String> templates = VelocityUtils.getTemplateList(table.getTplCategory());
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for (String template : templates) {
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// 渲染模板
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StringWriter sw = new StringWriter();
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Template tpl = Velocity.getTemplate(template, Constants.UTF8);
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tpl.merge(context, sw);
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dataMap.put(template, sw.toString());
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}
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return dataMap;
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}
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/**
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* 生成代码（下载方式）
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*
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* @param tableId 表名称
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* @return 数据
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*/
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@Override
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public byte[] downloadCode(Long tableId) {
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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ZipOutputStream zip = new ZipOutputStream(outputStream);
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generatorCode(tableId, zip);
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IoUtil.close(zip);
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return outputStream.toByteArray();
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}
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/**
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* 生成代码（自定义路径）
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*
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* @param tableId 表名称
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*/
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@Override
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public void generatorCode(Long tableId) {
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// 查询表信息
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GenTable table = baseMapper.selectGenTableById(tableId);
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// 设置主键列信息
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setPkColumn(table);
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VelocityInitializer.initVelocity();
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VelocityContext context = VelocityUtils.prepareContext(table);
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// 获取模板列表
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List<String> templates = VelocityUtils.getTemplateList(table.getTplCategory());
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for (String template : templates) {
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if (!StringUtils.containsAny(template, "sql.vm", "api.ts.vm", "types.ts.vm", "index.vue.vm", "index-tree.vue.vm")) {
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// 渲染模板
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StringWriter sw = new StringWriter();
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Template tpl = Velocity.getTemplate(template, Constants.UTF8);
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tpl.merge(context, sw);
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try {
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String path = getGenPath(table, template);
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FileUtils.writeUtf8String(sw.toString(), path);
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} catch (Exception e) {
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throw new ServiceException("渲染模板失败，表名：" + table.getTableName());
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}
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}
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}
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}
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/**
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* 同步数据库
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*
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* @param tableId 表名称
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*/
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@DSTransactional
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@Override
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public void synchDb(Long tableId) {
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GenTable table = baseMapper.selectGenTableById(tableId);
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List<GenTableColumn> tableColumns = table.getColumns();
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Map<String, GenTableColumn> tableColumnMap = StreamUtils.toIdentityMap(tableColumns, GenTableColumn::getColumnName);
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List<GenTableColumn> dbTableColumns = SpringUtils.getAopProxy(this).selectDbTableColumnsByName(table.getTableName(), table.getDataName());
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if (CollUtil.isEmpty(dbTableColumns)) {
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throw new ServiceException("同步数据失败，原表结构不存在");
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}
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List<String> dbTableColumnNames = StreamUtils.toList(dbTableColumns, GenTableColumn::getColumnName);
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List<GenTableColumn> saveColumns = new ArrayList<>();
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dbTableColumns.forEach(column -> {
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GenUtils.initColumnField(column, table);
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if (tableColumnMap.containsKey(column.getColumnName())) {
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GenTableColumn prevColumn = tableColumnMap.get(column.getColumnName());
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column.setColumnId(prevColumn.getColumnId());
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if (column.isList()) {
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// 如果是列表，继续保留查询方式/字典类型选项
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column.setDictType(prevColumn.getDictType());
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column.setQueryType(prevColumn.getQueryType());
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}
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if (StringUtils.isNotEmpty(prevColumn.getIsRequired()) && !column.isPk()
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&& (column.isInsert() || column.isEdit())
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&& ((column.isUsableColumn()) || (!column.isSuperColumn()))) {
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// 如果是(新增/修改&非主键/非忽略及父属性)，继续保留必填/显示类型选项
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column.setIsRequired(prevColumn.getIsRequired());
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column.setHtmlType(prevColumn.getHtmlType());
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}
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}
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saveColumns.add(column);
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});
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if (CollUtil.isNotEmpty(saveColumns)) {
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genTableColumnMapper.insertOrUpdateBatch(saveColumns);
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}
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List<GenTableColumn> delColumns = StreamUtils.filter(tableColumns, column -> !dbTableColumnNames.contains(column.getColumnName()));
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if (CollUtil.isNotEmpty(delColumns)) {
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List<Long> ids = StreamUtils.toList(delColumns, GenTableColumn::getColumnId);
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if (CollUtil.isNotEmpty(ids)) {
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genTableColumnMapper.deleteByIds(ids);
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}
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}
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}
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/**
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* 批量生成代码（下载方式）
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*
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* @param tableIds 表ID数组
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* @return 数据
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*/
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@Override
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public byte[] downloadCode(String[] tableIds) {
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ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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ZipOutputStream zip = new ZipOutputStream(outputStream);
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for (String tableId : tableIds) {
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generatorCode(Long.parseLong(tableId), zip);
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}
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IoUtil.close(zip);
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return outputStream.toByteArray();
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}
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/**
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* 查询表信息并生成代码
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*/
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private void generatorCode(Long tableId, ZipOutputStream zip) {
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// 查询表信息
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GenTable table = baseMapper.selectGenTableById(tableId);
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List<Long> menuIds = new ArrayList<>();
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for (int i = 0; i < 6; i++) {
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menuIds.add(identifierGenerator.nextId(null).longValue());
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}
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table.setMenuIds(menuIds);
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// 设置主键列信息
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setPkColumn(table);
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VelocityInitializer.initVelocity();
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VelocityContext context = VelocityUtils.prepareContext(table);
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// 获取模板列表
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List<String> templates = VelocityUtils.getTemplateList(table.getTplCategory());
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for (String template : templates) {
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// 渲染模板
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StringWriter sw = new StringWriter();
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Template tpl = Velocity.getTemplate(template, Constants.UTF8);
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tpl.merge(context, sw);
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try {
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// 添加到zip
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zip.putNextEntry(new ZipEntry(VelocityUtils.getFileName(template, table)));
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IoUtil.write(zip, StandardCharsets.UTF_8, false, sw.toString());
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IoUtil.close(sw);
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zip.flush();
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zip.closeEntry();
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} catch (IOException e) {
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log.error("渲染模板失败，表名：" + table.getTableName(), e);
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}
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}
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}
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/**
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* 修改保存参数校验
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*
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* @param genTable 业务信息
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*/
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@Override
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public void validateEdit(GenTable genTable) {
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if (GenConstants.TPL_TREE.equals(genTable.getTplCategory())) {
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String options = JsonUtils.toJsonString(genTable.getParams());
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Dict paramsObj = JsonUtils.parseMap(options);
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if (StringUtils.isEmpty(paramsObj.getStr(GenConstants.TREE_CODE))) {
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throw new ServiceException("树编码字段不能为空");
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} else if (StringUtils.isEmpty(paramsObj.getStr(GenConstants.TREE_PARENT_CODE))) {
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throw new ServiceException("树父编码字段不能为空");
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} else if (StringUtils.isEmpty(paramsObj.getStr(GenConstants.TREE_NAME))) {
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throw new ServiceException("树名称字段不能为空");
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}
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}
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}
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/**
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* 设置主键列信息
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*
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* @param table 业务表信息
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*/
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public void setPkColumn(GenTable table) {
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for (GenTableColumn column : table.getColumns()) {
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if (column.isPk()) {
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table.setPkColumn(column);
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break;
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}
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}
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if (ObjectUtil.isNull(table.getPkColumn())) {
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table.setPkColumn(table.getColumns().get(0));
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}
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}
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/**
|
* 设置代码生成其他选项值
|
*
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* @param genTable 设置后的生成对象
|
*/
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public void setTableFromOptions(GenTable genTable) {
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Dict paramsObj = JsonUtils.parseMap(genTable.getOptions());
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if (ObjectUtil.isNotNull(paramsObj)) {
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String treeCode = paramsObj.getStr(GenConstants.TREE_CODE);
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String treeParentCode = paramsObj.getStr(GenConstants.TREE_PARENT_CODE);
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String treeName = paramsObj.getStr(GenConstants.TREE_NAME);
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Long parentMenuId = paramsObj.getLong(GenConstants.PARENT_MENU_ID);
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String parentMenuName = paramsObj.getStr(GenConstants.PARENT_MENU_NAME);
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genTable.setTreeCode(treeCode);
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genTable.setTreeParentCode(treeParentCode);
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genTable.setTreeName(treeName);
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genTable.setParentMenuId(parentMenuId);
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genTable.setParentMenuName(parentMenuName);
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}
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}
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/**
|
* 获取代码生成地址
|
*
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* @param table 业务表信息
|
* @param template 模板文件路径
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* @return 生成地址
|
*/
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public static String getGenPath(GenTable table, String template) {
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String genPath = table.getGenPath();
|
if (StringUtils.equals(genPath, "/")) {
|
return System.getProperty("user.dir") + File.separator + "src" + File.separator + VelocityUtils.getFileName(template, table);
|
}
|
return genPath + File.separator + VelocityUtils.getFileName(template, table);
|
}
|
}
|
