package com.product.print.util;
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import com.deepoove.poi.exception.RenderException;
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import com.deepoove.poi.render.RenderContext;
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import com.deepoove.poi.template.run.RunTemplate;
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import com.deepoove.poi.util.TableTools;
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import com.product.common.lang.StringUtils;
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import com.product.core.exception.BaseException;
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import com.product.print.config.CmnCode;
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import org.apache.poi.xwpf.usermodel.*;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* @Author cheng
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* @Date 2023/6/27 15:50
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* @Desc
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*/
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public class DynamicTableRenderPolicy extends com.deepoove.poi.policy.DynamicTableRenderPolicy {
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private String replaceKey;
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private final String indexKey = "~index~";
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public DynamicTableRenderPolicy(String replaceKey) {
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this.replaceKey = replaceKey;
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}
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private XWPFRun run;
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@Override
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public void doRender(RenderContext<Object> context) throws Exception {
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RunTemplate runTemplate = (RunTemplate) context.getEleTemplate();
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XWPFRun run = runTemplate.getRun();
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try {
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if (!TableTools.isInsideTable(run)) {
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throw new IllegalStateException(
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"The template tag " + runTemplate.getSource() + " must be inside a table");
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}
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XWPFTableCell cell = (XWPFTableCell) ((XWPFParagraph) run.getParent()).getBody();
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XWPFTable table = cell.getTableRow().getTable();
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render(table, context.getData());
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} catch (Exception e) {
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throw new RenderException("Dynamic render table error:" + e.getMessage(), e);
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}
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}
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@Override
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public void render(XWPFTable xwpfTable, Object data) throws Exception {
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if (xwpfTable == null) {
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return;
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}
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List<Map<String, Object>> subTableData = (List<Map<String, Object>>) data;
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List<XWPFTableRow> rows = xwpfTable.getRows();
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//读取rows中的内容
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//获取最后一行
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XWPFTableRow xwpfTableRow = rows.get(rows.size() - 1);
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String tableExpression = "{{" + this.replaceKey + "}}";
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//获取表格起始行和结束行
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int startRowIndex = -1;
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int endRowIndex = -1;
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rows:
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for (int i = 0; i < rows.size(); i++) {
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XWPFTableRow row = rows.get(i);
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for (int j = 0; j < row.getTableCells().size(); j++) {
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if (startRowIndex > -1 && endRowIndex > -1) {
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break rows;
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}
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XWPFTableCell cell = row.getTableCells().get(j);
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String text = cell.getText();
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if (tableExpression.equals(text)) {
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startRowIndex = i;
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}
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if ("{{$~end~}}".equals(text)) {
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endRowIndex = i;
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}
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}
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}
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//表格起始行不在第一行且没有找到结束标记
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if (startRowIndex > 0 && endRowIndex == -1) {
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throw new BaseException(CmnCode.NOT_FIND_END_FLAG);
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}
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if (startRowIndex == 0 && endRowIndex > 0) {
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//删除结束标记所在行
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xwpfTable.removeRow(endRowIndex);
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}
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//读取最后行每个单元格的值，调用getReplaceKey方法获取表达式中的值
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String[] fieldNames = new String[xwpfTableRow.getTableCells().size()];
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// for (int i = 0; i < xwpfTableRow.getTableCells().size(); i++) {
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// XWPFTableCell cell = xwpfTableRow.getTableCells().get(i);
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// String text = cell.getText();
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// String replaceKey = getReplaceKey(text);
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// //获取表达式中的值
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// if (StringUtils.isEmpty(replaceKey)) {
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// //设置单元格为空值
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// replaceKey = "";
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// }
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// fieldNames[i] = replaceKey;
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// }
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// //读取完毕后删除最后一行
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// xwpfTable.removeRow(rows.size() - 1);
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//获取所有的行判断单元格是否有值没有就删除该行
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// List<XWPFTableRow> tableRows = xwpfTable.getRows();
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// List<XWPFTableRow> deleteRows = new ArrayList<>();
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// for (int i = 0; i < tableRows.size(); i++) {
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// XWPFTableRow row = tableRows.get(i);
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// boolean flag = false;
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// for (int j = 0; j < row.getTableCells().size(); j++) {
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// XWPFTableCell cell = row.getTableCells().get(j);
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// if (StringUtils.isNotEmpty(cell.getText())) {
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// flag = true;
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// break;
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// }
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// }
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// if (!flag) {
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// deleteRows.add(row);
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// }
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// }
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// //遍历要删除的行获取所在的下标进行删除
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// for (int i = 0; i < deleteRows.size(); i++) {
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// XWPFTableRow row = deleteRows.get(i);
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// int index = xwpfTable.getRows().indexOf(row);
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// xwpfTable.removeRow(index);
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// }
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// //遍历数据集合，每个map对应一行数据
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// for (int i = 0; i < subTableData.size(); i++) {
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// Map<String, Object> map = subTableData.get(i);
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// //创建一行
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// XWPFTableRow row = xwpfTable.createRow();
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// //遍历字段每个字段创建一个单元格
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// for (int j = 0; j < fieldNames.length; j++) {
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// //当前单元格
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// XWPFTableCell cell;
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// //判断row中第j个单元格是否存在
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// if (row.getTableCells().size() > j) {
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// cell = row.getTableCells().get(j);
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// } else {
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// cell = row.createCell();
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// }
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// //设置单元格的值从map中取出
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// //判断是否是序号列
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// if (indexKey.equals(fieldNames[j])) {
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// cell.setText(String.valueOf(i + 1));
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// continue;
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// }
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// Object value = map.get(fieldNames[j]);
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// if (value == null) {
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// value = "";
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// }
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// //设置单元格的值
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// cell.setText(value.toString());
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// }
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// }
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}
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/**
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* 解析表达式中的值获取 以{{$开头，以}}结尾的字符串取出$后面的值截止到}}
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*/
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private String getReplaceKey(String text) {
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//使用正则解析表达式中的值获取 以{{$开头，以}}结尾的字符串取出$后面的值截止到}}
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Pattern pattern = Pattern.compile("\\{\\{\\$(.*?)\\}\\}");
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Matcher matcher = pattern.matcher(text);
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if (matcher.find()) {
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return matcher.group(1);
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}
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return null;
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}
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}
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