[EDIT] MEJORAS DE RENDIMIENTO EN EL SERVICIO DE EXCEL

src/main/java/web/multitask/trismegistoservices/AppApplication.java

@@ -2,6 +2,10 @@ package web.multitask.trismegistoservices;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.core.task.TaskExecutor;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
 
 @SpringBootApplication
 public class AppApplication {
@@ -10,4 +14,15 @@ public class AppApplication {
 		SpringApplication.run(AppApplication.class, args);
 	}
 
+    // @Bean("threadPoolTaskExecutor")
+    // TaskExecutor asyncExecutor() {
+	// 	ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+	// 	executor.setCorePoolSize(10);
+	// 	executor.setMaxPoolSize(1000);
+	// 	executor.setQueueCapacity(500);
+	// 	executor.setThreadNamePrefix("AsyncThread-");
+	// 	executor.initialize();
+	// 	return executor;
+	// }
+
 }
\ No newline at end of file

src/main/java/web/multitask/trismegistoservices/services/ExcelService.java

 package web.multitask.trismegistoservices.services;
 
+import java.awt.Color;
 import java.io.ByteArrayOutputStream;
 import org.apache.poi.ss.usermodel.BorderStyle;
 import org.apache.poi.ss.usermodel.FillPatternType;
@@ -15,7 +16,6 @@ import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.apache.poi.xssf.usermodel.extensions.XSSFCellBorder.BorderSide;
 import org.json.JSONArray;
 import org.json.JSONObject;
-import java.awt.Color;
 import org.springframework.core.io.ByteArrayResource;
 import org.springframework.core.io.Resource;
 import org.springframework.stereotype.Service;
@@ -53,35 +53,59 @@ public class ExcelService {
 
     private void buildSheet(XSSFWorkbook workbook, XSSFSheet sheet, JSONObject json) {
 
+        final XSSFCellStyle defaultStyle = createCellStyle(workbook, new JSONObject());
+        
         JSONArray identifiers = json.optJSONArray("identifiers", new JSONArray());
+
         JSONArray data = json.optJSONArray("data", new JSONArray());
         JSONArray styles = json.optJSONArray("styles", new JSONArray());
         for (int i = 0; i < data.length(); i++) {
             XSSFRow row = sheet.createRow(i);
             JSONObject row_data = data.optJSONObject(i);
             for (int j = 0; j < identifiers.length(); j++) {
-                sheet.autoSizeColumn(j);
-                String value = row_data.optString(identifiers.getString(j), "");
                 XSSFCell cell = row.createCell(j);
                 JSONArray styleArray = styles.optJSONArray(i, new JSONArray());
                 JSONObject style = styleArray.optJSONObject(j, new JSONObject());
-                XSSFCellStyle cellStyle = createCellStyle(workbook,
-                            getXSSFColor(style.optString("background", "#ffffff")),
-                            getXSSFColor(style.optString("foreground", "#333333")),
-                            style.optBoolean("bold", false),
-                            style.optBoolean("border", true));
-                cell.setCellStyle(cellStyle);
-                cell.setCellValue(value);
+                if(style.isEmpty()){
+                    cell.setCellStyle(defaultStyle);
+                }else{
+                    XSSFCellStyle cellStyle = createCellStyle(workbook,style);
+                    cell.setCellStyle(cellStyle);
+                }
+                if(row_data.get(identifiers.optString(j, "")) instanceof String){
+                    cell.setCellValue(row_data.optString(identifiers.optString(j, ""), ""));
+                    cell.setCellType(org.apache.poi.ss.usermodel.CellType.STRING);
+                }else if(row_data.get(identifiers.optString(j, "")) instanceof Integer){
+                    cell.setCellValue(row_data.optInt(identifiers.optString(j, ""), 0));
+                    cell.setCellType(org.apache.poi.ss.usermodel.CellType.NUMERIC);
+                }else if(row_data.get(identifiers.optString(j, "")) instanceof Double){
+                    cell.setCellValue(row_data.optDouble(identifiers.optString(j, ""), 0.0));
+                    cell.setCellType(org.apache.poi.ss.usermodel.CellType.NUMERIC);
+                }else if(row_data.get(identifiers.optString(j, "")) instanceof Boolean){
+                    cell.setCellValue(row_data.optBoolean(identifiers.optString(j, ""), false));
+                    cell.setCellType(org.apache.poi.ss.usermodel.CellType.BOOLEAN);
+                }else{
+                    cell.setCellValue(row_data.optString(identifiers.optString(j, ""), ""));
+                    cell.setCellType(org.apache.poi.ss.usermodel.CellType.STRING);
+                }
             }
         }
 
+        for (int i = 0; i < identifiers.length(); i++) {
+            sheet.autoSizeColumn(i, true);
+        }
     }
 
-    private XSSFCellStyle createCellStyle(XSSFWorkbook workbook, XSSFColor background, XSSFColor foreground,
-            boolean bold, boolean border) {
+    private XSSFCellStyle createCellStyle(XSSFWorkbook workbook, JSONObject styleJson) {
+
+        XSSFColor background = getXSSFColor(styleJson.optString("background", "#ffffff"));
+        XSSFColor foreground = getXSSFColor(styleJson.optString("foreground", "#333333"));
+        boolean bold = styleJson.optBoolean("bold", false);
+        boolean border = styleJson.optBoolean("border", true);
+        String align = styleJson.optString("textAlign", "center");
         XSSFCellStyle style = workbook.createCellStyle();
         Font font = workbook.createFont();
-        style.setAlignment(HorizontalAlignment.CENTER);
+        style.setAlignment( align.equals("center") ? HorizontalAlignment.CENTER : align.equals("left") ? HorizontalAlignment.LEFT : HorizontalAlignment.RIGHT);
         style.setWrapText(true);
         style.setVerticalAlignment(VerticalAlignment.CENTER);
         style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
@@ -95,9 +119,17 @@ public class ExcelService {
             style.setBorderColor(BorderSide.TOP, getXSSFColor("#333333"));
             style.setBorderColor(BorderSide.LEFT, getXSSFColor("#333333"));
             style.setBorderColor(BorderSide.RIGHT, getXSSFColor("#333333"));
+        }else{
+            style.setBorderBottom(BorderStyle.THIN);
+            style.setBorderTop(BorderStyle.THIN);
+            style.setBorderLeft(BorderStyle.THIN);
+            style.setBorderRight(BorderStyle.THIN);
+            style.setBorderColor(BorderSide.BOTTOM, getXSSFColor("#aaaaaa"));
+            style.setBorderColor(BorderSide.TOP, getXSSFColor("#aaaaaa"));
+            style.setBorderColor(BorderSide.LEFT, getXSSFColor("#aaaaaa"));
+            style.setBorderColor(BorderSide.RIGHT, getXSSFColor("#aaaaaa"));
         }
 
-        // font.setFontHeightInPoints((short) 15);
         font.setBold(bold);
         style.setFont(font);