feature: Support Dynamic Column in Fill Operation for Collection Data

fesod-examples/src/test/java/org/apache/fesod/excel/temp/fill/DynamicFillData.java

@@ -0,0 +1,17 @@
+package org.apache.fesod.excel.temp.fill;
+
+import lombok.Data;
+import org.apache.fesod.excel.annotation.fill.DynamicColumn;
+
+import java.util.Map;
+
+@Data
+public class DynamicFillData {
+    private String name;
+    private double number;
+    @DynamicColumn()
+    private Map<String,String> qtyMap;
+
+    @DynamicColumn()
+    private Map<String,DynamicFillDataObj> priceMap;
+}

fesod-examples/src/test/java/org/apache/fesod/excel/temp/fill/DynamicFillDataObj.java

@@ -0,0 +1,16 @@
+package org.apache.fesod.excel.temp.fill;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@AllArgsConstructor
+@Getter
+@Setter
+public class DynamicFillDataObj {
+
+    private String qty;
+    private double price;
+
+
+}

fesod-examples/src/test/java/org/apache/fesod/excel/temp/fill/FillTempTest.java

@@ -19,12 +19,6 @@
 
 package org.apache.fesod.excel.temp.fill;
 
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
 import org.apache.fesod.excel.ExcelWriter;
 import org.apache.fesod.excel.FastExcel;
 import org.apache.fesod.excel.demo.fill.FillData;
@@ -35,6 +29,13 @@
 import org.apache.fesod.excel.write.metadata.fill.FillWrapper;
 import org.junit.jupiter.api.Test;
 
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
 /**
  * Example of filling data into Excel templates.
  *
@@ -72,6 +73,69 @@ public void simpleFill() {
         */
     }
 
+    @Test
+    public void dynamicFill() {
+        String templateFileName = "src/test/resources/fill/dynamicColumn.xlsx";
+        String fileName = TestFileUtil.getPath() + "dynamicColumnFill" + System.currentTimeMillis() + ".xlsx";
+
+        DynamicFillData fillData1 = new DynamicFillData();
+        fillData1.setName("Zhang San");
+        fillData1.setNumber(5.2);
+        HashMap<String,String> qtyMap = new HashMap<>();
+        qtyMap.put("2023-01-01", "100");
+        qtyMap.put("2023-01-02", "200");
+        qtyMap.put("2023-01-03", "300");
+        fillData1.setQtyMap(qtyMap);
+        HashMap<String,DynamicFillDataObj> priceMap = new HashMap<>();
+        priceMap.put("2023-01-01", new DynamicFillDataObj("100个", 100));
+        priceMap.put("2023-01-02", new DynamicFillDataObj("200个", 200));
+        priceMap.put("2023-01-03", new DynamicFillDataObj("300个", 300));
+        fillData1.setPriceMap(priceMap);
+
+        DynamicFillData fillData2 = new DynamicFillData();
+        fillData2.setName("Li Si");
+        fillData2.setNumber(6.3);
+        HashMap<String,String> qtyMap2 = new HashMap<>();
+        qtyMap2.put("2023-01-01", "100");
+        qtyMap2.put("2023-01-02", "200");
+        qtyMap2.put("2023-01-03", "300");
+        fillData2.setQtyMap(qtyMap2);
+        HashMap<String,DynamicFillDataObj> priceMap2 = new HashMap<>();
+        priceMap2.put("2023-01-01", new DynamicFillDataObj("100", 100));
+        priceMap2.put("2023-01-02", new DynamicFillDataObj("200", 200));
+        priceMap2.put("2023-01-03", new DynamicFillDataObj("300", 300));
+        fillData2.setPriceMap(priceMap2);
+
+        List<DynamicFillData> fillDataList = new ArrayList<>();
+        fillDataList.add(fillData1);
+        fillDataList.add(fillData2);
+
+        ArrayList dateList = new ArrayList<>();
+        dateList.add("2023-01-01");
+        dateList.add("2023-01-02");
+        dateList.add("2023-01-03");
+        dateList.add("2023-01-04");
+        dateList.add("2023-01-05");
+        dateList.add("2023-01-06");
+        dateList.add("2023-01-07");
+        dateList.add("2023-01-08");
+        dateList.add("2023-01-09");
+        dateList.add("2023-01-10");
+        dateList.add("2023-01-11");
+        dateList.add("2023-01-12");
+
+        ExcelWriter excelWriter = FastExcel.write(fileName).withTemplate(templateFileName).build();
+        WriteSheet writeSheet = FastExcel.writerSheet().build();
+        excelWriter.fill(new FillWrapper("dataList", fillDataList), FillConfig.builder().forceNewRow(true).addDynamicInfo(dateList,1,"qtyMap")
+                .addDefaultDynamicInfo(dateList,1)
+                .build(), writeSheet);
+        excelWriter.fill(new FillWrapper("dataObjList", fillDataList), FillConfig.builder().addDefaultDynamicInfo(dateList,2).forceNewRow(true).build(), writeSheet);
+        excelWriter.fill(new FillWrapper("dateList", dateList), FillConfig.builder().direction(WriteDirectionEnum.HORIZONTAL).build(), writeSheet);
+        // Do not forget to close the stream
+        excelWriter.finish();
+
+    }
+
     /**
      * Example of filling a list of data.
      *
@@ -205,7 +269,7 @@ public void horizontalFill() {
         excelWriter.fill(data(), fillConfig, writeSheet);
         excelWriter.fill(data(), fillConfig, writeSheet);
 
-        Map<String, Object> map = new HashMap<String, Object>();
+        Map<String, Object> map = new HashMap();
         map.put("date", "2019-10-09 13:28:28");
         excelWriter.fill(map, writeSheet);
 

fesod/src/main/java/org/apache/fesod/excel/annotation/fill/DynamicColumn.java

@@ -0,0 +1,15 @@
+package org.apache.fesod.excel.annotation.fill;
+
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.annotation.Inherited;
+
+@Target(ElementType.FIELD)
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+public @interface DynamicColumn {
+
+}

fesod/src/main/java/org/apache/fesod/excel/write/executor/AbstractExcelWriteExecutor.java

@@ -19,14 +19,16 @@
 
 package org.apache.fesod.excel.write.executor;
 
-import java.util.List;
+import cn.idev.excel.support.cglib.beans.BeanMap;
 import org.apache.commons.collections4.CollectionUtils;
+import org.apache.fesod.excel.annotation.fill.DynamicColumn;
 import org.apache.fesod.excel.context.WriteContext;
 import org.apache.fesod.excel.converters.Converter;
 import org.apache.fesod.excel.converters.ConverterKeyBuild;
 import org.apache.fesod.excel.converters.NullableObjectConverter;
 import org.apache.fesod.excel.converters.WriteConverterContext;
 import org.apache.fesod.excel.enums.CellDataTypeEnum;
+import org.apache.fesod.excel.enums.WriteDirectionEnum;
 import org.apache.fesod.excel.exception.ExcelWriteDataConvertException;
 import org.apache.fesod.excel.metadata.data.CommentData;
 import org.apache.fesod.excel.metadata.data.FormulaData;
@@ -35,13 +37,17 @@
 import org.apache.fesod.excel.metadata.data.WriteCellData;
 import org.apache.fesod.excel.metadata.property.ExcelContentProperty;
 import org.apache.fesod.excel.support.ExcelTypeEnum;
+import org.apache.fesod.excel.util.BeanMapUtils;
 import org.apache.fesod.excel.util.DateUtils;
+import org.apache.fesod.excel.util.FieldUtils;
 import org.apache.fesod.excel.util.FileTypeUtils;
 import org.apache.fesod.excel.util.ListUtils;
 import org.apache.fesod.excel.util.StyleUtil;
 import org.apache.fesod.excel.util.WorkBookUtil;
 import org.apache.fesod.excel.util.WriteHandlerUtils;
 import org.apache.fesod.excel.write.handler.context.CellWriteHandlerContext;
+import org.apache.fesod.excel.write.metadata.fill.DynamicColumnInfo;
+import org.apache.fesod.excel.write.metadata.fill.FillConfig;
 import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
 import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.ClientAnchor;
@@ -53,6 +59,10 @@
 import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
 
+import java.lang.reflect.Field;
+import java.util.List;
+import java.util.Map;
+
 /**
  * Excel write Executor
  *
@@ -66,12 +76,11 @@ public AbstractExcelWriteExecutor(WriteContext writeContext) {
     }
 
     /**
-     * Transform the data and then to set into the cell
+     * Transform item
      *
      * @param cellWriteHandlerContext context
-     */
-    protected void converterAndSet(CellWriteHandlerContext cellWriteHandlerContext) {
-
+     * */
+    protected void convertAndSetItem(CellWriteHandlerContext cellWriteHandlerContext) {
         WriteCellData<?> cellData = convert(cellWriteHandlerContext);
         cellWriteHandlerContext.setCellDataList(ListUtils.newArrayList(cellData));
         cellWriteHandlerContext.setFirstCellData(cellData);
@@ -98,6 +107,10 @@ protected void converterAndSet(CellWriteHandlerContext cellWriteHandlerContext)
             cellData.setType(CellDataTypeEnum.EMPTY);
         }
         Cell cell = cellWriteHandlerContext.getCell();
+        setCellValue(cellWriteHandlerContext, cellData, cell);
+    }
+
+    private void setCellValue(CellWriteHandlerContext cellWriteHandlerContext, WriteCellData<?> cellData, Cell cell) {
         switch (cellData.getType()) {
             case STRING:
                 cell.setCellValue(cellData.getStringValue());
@@ -126,6 +139,64 @@ protected void converterAndSet(CellWriteHandlerContext cellWriteHandlerContext)
         }
     }
 
+    /**
+     * Transform the data and then to set into the cell
+     *
+     * @param cellWriteHandlerContext context
+     */
+    protected void converterAndSet(CellWriteHandlerContext cellWriteHandlerContext) {
+        Object originalValue = cellWriteHandlerContext.getOriginalValue();
+        Field field = cellWriteHandlerContext.getExcelContentProperty().getField();
+        if (null != field && field.isAnnotationPresent(DynamicColumn.class)) {
+            Map<String, Object> dynamicColumnMap = (Map<String, Object>) originalValue;
+            FillConfig fillConfig = cellWriteHandlerContext.getFillConfig();
+            if(null == fillConfig || null == fillConfig.getDynamicColumnInfoMap()){
+                throw new ExcelWriteDataConvertException(cellWriteHandlerContext, "DynamicColumn annotation must be used with FillConfig.dynamicColumnInfoMap");
+            }
+            DynamicColumnInfo dynamicColumnInfo = fillConfig.getDynamicColumnInfo(field.getName());
+            Integer columnIndex = cellWriteHandlerContext.getColumnIndex();
+            Integer rowIndex = cellWriteHandlerContext.getRowIndex();
+            for (int i = 0; i < dynamicColumnInfo.getKeys().size(); i++) {
+                String key =  dynamicColumnInfo.getKeys().get(i);
+                Object o = dynamicColumnMap.get(key);
+                String originalVariable = cellWriteHandlerContext.getOriginalVariable();
+                if(originalVariable.contains(".")){
+                    key = originalVariable.split("\\.")[1];
+                    Object itemBean = o;
+                    if (null == itemBean) {
+                        o = null;
+                    }else{
+                        BeanMap beanMap = BeanMapUtils.create(itemBean);
+                        o = beanMap.get(key);
+                    }
+                }
+
+                Integer dynamicColumnGroupSize = dynamicColumnInfo.getGroupSize();
+                WriteDirectionEnum direction = fillConfig.getDirection();
+                int currentRowIndex = rowIndex;
+                int currentColumnIndex = columnIndex;
+                if(WriteDirectionEnum.VERTICAL.equals(direction)){
+                    currentColumnIndex = columnIndex + dynamicColumnGroupSize * i;
+                }else{
+                    currentRowIndex = rowIndex + dynamicColumnGroupSize*i;
+                }
+
+                Map<String, CellWriteHandlerContext> cellMap = cellWriteHandlerContext.getCellMap();
+                CellWriteHandlerContext currentCellWriteHandlerContext = cellMap.get(currentRowIndex + "_" + currentColumnIndex);
+                currentCellWriteHandlerContext.setOriginalValue(o);
+                currentCellWriteHandlerContext.setOriginalFieldClass(FieldUtils.getFieldClass(o));
+                convertAndSetItem(currentCellWriteHandlerContext);
+                if (i == 0) {
+                    cellWriteHandlerContext.setOriginalValue(o);
+                    cellWriteHandlerContext.setOriginalFieldClass(FieldUtils.getFieldClass(o));
+                    convertAndSetItem(cellWriteHandlerContext);
+                }
+            }
+        } else {
+            convertAndSetItem(cellWriteHandlerContext);
+        }
+    }
+
     private void fillFormula(CellWriteHandlerContext cellWriteHandlerContext, FormulaData formulaData) {
         if (formulaData == null) {
             return;