generar pdf de detalle postulante desde backend. estilo basico

curriculumsearch/pom.xml

@@ -92,6 +92,13 @@
 			<scope>compile</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>com.itextpdf</groupId>
+			<artifactId>itextpdf</artifactId>
+			<version>5.5.13</version>
+		</dependency>
+		
+
 	</dependencies>
 
 	<build>

curriculumsearch/src/main/java/com/roshka/controller/PostulanteRRHHController.java

@@ -20,6 +20,7 @@ import com.roshka.repositorio.ExperienciaRepository;
 import com.roshka.repositorio.InstitucionRepository;
 import com.roshka.repositorio.PostulanteRepository;
 import com.roshka.repositorio.TecnologiaRepository;
+import com.roshka.service.PdfGenerator;
 import com.roshka.utils.Helper;
 
 
@@ -169,5 +170,26 @@ public class PostulanteRRHHController {
         }
 
     }
+
+    @GetMapping("/postulantes/{id}/pdf")
+    public ResponseEntity<Resource> downloadPDF(@PathVariable Long id) {
+        // Load file from database
+        PdfGenerator pdf =  new PdfGenerator();
+        
+        
+        try {
+            Postulante postulante = post.findById(id)
+            .orElseThrow(() -> new Exception("Postulante no encontrado"));
+            return ResponseEntity.ok()
+                    .contentType(MediaType.parseMediaType("application/pdf"))
+                    .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + "aver.pdf" + "\"")
+                    .body(new ByteArrayResource(pdf.generatePdfReport(postulante)));
+        } catch (Exception e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+            return ResponseEntity.notFound().build();
+        }
+
+    }
 }
             
\ No newline at end of file

curriculumsearch/src/main/java/com/roshka/service/PdfGenerator.java

+package com.roshka.service;
+
+import java.io.ByteArrayOutputStream;
+import java.util.Date;
+import java.util.stream.Collectors;
+
+import com.itextpdf.text.List;
+import com.itextpdf.text.ListItem;
+
+
+import org.springframework.stereotype.Component;
+
+
+import com.itextpdf.text.Document;
+import com.itextpdf.text.DocumentException;
+import com.itextpdf.text.Element;
+import com.itextpdf.text.Font;
+import com.itextpdf.text.Paragraph;
+import com.itextpdf.text.pdf.PdfWriter;
+import com.roshka.modelo.Estudio;
+import com.roshka.modelo.Experiencia;
+import com.roshka.modelo.Postulante;
+import com.roshka.utils.Helper;
+
+@Component("pdfGenerator")
+public class PdfGenerator {
+
+	private static Font COURIER = new Font(Font.FontFamily.COURIER, 20, Font.BOLD);
+	private static Font COURIER_MEDIUM = new Font(Font.FontFamily.COURIER, 16, Font.BOLD);
+	private static Font COURIER_SMALL = new Font(Font.FontFamily.COURIER, 14, Font.UNDERLINE);
+
+	public byte[] generatePdfReport(Postulante postulante) {
+
+		Document document = new Document();
+
+		try {
+            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+			PdfWriter.getInstance(document, byteArrayOutputStream);
+			document.open();
+			
+			addDocTitle(document, postulante);
+			createTable(document,postulante);
+			
+            
+			document.close();
+			System.out.println("------------------Your PDF Report is ready!-------------------------");
+            return byteArrayOutputStream.toByteArray();
+
+		} catch ( DocumentException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+            return null;
+		}
+
+	}
+
+	private void addDocTitle(Document document, Postulante postulante) throws DocumentException {
+		Paragraph p1 = new Paragraph();
+		leaveEmptyLine(p1, 1);
+		p1.add(new Paragraph("Detalles del postulante", COURIER));
+		p1.setAlignment(Element.ALIGN_CENTER);
+		document.add(p1);
+
+	}
+	private void agregarEncabezado(Document document, String titulo) throws DocumentException {
+		
+		Paragraph p1 = new Paragraph();
+		p1.setAlignment(Element.ALIGN_CENTER);
+		p1.add(new Paragraph(titulo, COURIER_MEDIUM));
+		document.add(p1);
+
+	}
+	private void agregarSubEncabezado(Document document, String titulo) throws DocumentException {
+		
+		Paragraph p1 = new Paragraph();
+		p1.setAlignment(Element.ALIGN_CENTER);
+		p1.add(new Paragraph(titulo, COURIER_SMALL));
+		document.add(p1);
+
+	}
+
+	private void agregarLabelTexto(Document document, String label, Object texto) throws DocumentException{
+		if(texto == null) return;
+		if(texto instanceof Date) texto = Helper.formatDate((Date)texto, "dd-MM-yyyy");
+		Paragraph paragraph = new Paragraph();
+		paragraph.add(label + ": ");
+		paragraph.add(texto.toString());
+		document.add(paragraph);
+	}
+
+ 	private void createTable(Document document, Postulante postulante) throws DocumentException {
+        
+		Paragraph paragraph = new Paragraph();
+		leaveEmptyLine(paragraph, 3);
+        //paragraph.add();
+		agregarEncabezado(document, "Datos personales");
+        agregarLabelTexto(document, "Nombre", postulante.getNombre() + " " + postulante.getApellido());
+        agregarLabelTexto(document, "Nro de Documento", postulante.getNroDocument());
+        agregarLabelTexto(document, "Correo", postulante.getCorreo());
+        agregarLabelTexto(document, "Direccion", postulante.getDireccion());
+        agregarLabelTexto(document, "Ciudad", postulante.getCiudad().getNombre());
+        agregarLabelTexto(document, "Telefono", postulante.getTelefono());
+        agregarLabelTexto(document, "Edad", Helper.calculateAge(postulante.getFechaNacimiento()) );
+        agregarLabelTexto(document, "Nivel de Ingles", postulante.getNivelIngles());
+        agregarLabelTexto(document, "Nacionalidad", postulante.getNacionalidad().getDescripcion());
+
+		agregarEncabezado(document, "Experiencias");
+
+		for(Experiencia ex : postulante.getExperiencias()){
+			agregarSubEncabezado(document, ex.getInstitucion());
+			agregarLabelTexto(document, "Fecha Inicio", ex.getFechaDesde());
+			agregarLabelTexto(document, "Fecha Fin", ex.getFechaHasta());
+			agregarLabelTexto(document, "Cargo", ex.getCargo());
+			agregarLabelTexto(document, "Tipo Experiencia", ex.getTipoExperiencia());
+			agregarLabelTexto(document, "Descripcion", ex.getDescripcion());
+			agregarLabelTexto(document, "Nombre Referencia", ex.getNombreReferencia());
+			agregarLabelTexto(document, "Telefono Referencia", ex.getTelefonoReferencia());
+			agregarLabelTexto(document, "Motivo Salida", ex.getMotivoSalida());
+		}
+		agregarEncabezado(document, "Estudios");
+
+		for(Estudio ex : postulante.getEstudios()){
+			agregarSubEncabezado(document, ex.getInstitucion().getNombre());
+			agregarLabelTexto(document, "Fecha Inicio", ex.getFechaDesde());
+			agregarLabelTexto(document, "Fecha Fin", ex.getFechaHasta());
+			agregarLabelTexto(document, "Tema de Estudio", ex.getTemaDeEstudio());
+			agregarLabelTexto(document, "Tipo de Estudio", ex.getTipoDeEstudio());
+			agregarLabelTexto(document, "Descripcion", ex.getEstado().toString());
+		}
+
+		agregarEncabezado(document, "Cargo al cual postula");
+		
+		agregarList(postulante.getPostulaciones().stream()
+					.map(cc -> cc.getCargo().getNombre())
+					.collect(Collectors.toList()), document);
+		
+		agregarEncabezado(document, "Tecnologias");
+		
+		agregarList(postulante.getTecnologias().stream()
+			.map(cc -> cc.getTecnologia().getNombre())
+			.collect(Collectors.toList()), 
+			document);
+
+		agregarEncabezado(document, "Referencias Personales");
+
+		agregarList(postulante.getReferencias().stream()
+			.map(cc -> "Nombre: " + cc.getNombre() + ". Relacion: " + cc.getRelacion() +  ". Telefono: " + cc.getTelefono() )
+			.collect(Collectors.toList()), 
+			document);
+
+
+	} 
+
+	private void agregarList(java.util.List<String> items, Document document) throws DocumentException{
+		List list = new List(false);
+		for(String item : items){
+			list.add(new ListItem(item));
+		}
+		document.add(list);
+		
+ 
+	}
+	private static void leaveEmptyLine(Paragraph paragraph, int number) {
+		for (int i = 0; i < number; i++) {
+			paragraph.add(new Paragraph(" "));
+		}
+	}
+	
+}

curriculumsearch/src/main/java/com/roshka/utils/Helper.java

@@ -3,9 +3,9 @@ package com.roshka.utils;
 import java.io.IOException;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.time.YearMonth;
-import java.time.ZoneOffset;
-import java.time.temporal.ChronoUnit;
+import java.time.LocalDate;
+import java.time.Period;
+import java.time.format.DateTimeFormatter;
 import java.util.Date;
 import java.util.concurrent.TimeUnit;
 
@@ -46,6 +46,31 @@ public class Helper {
         return Math.round(diff/30.d) ;
     }
 
+    public static LocalDate convertToLocalDateViaSqlDate(Date dateToConvert) {
+        return new java.sql.Date(dateToConvert.getTime()).toLocalDate();
+    }
+
+    public static int calculateAge(LocalDate birthDate, LocalDate currentDate) {
+        if ((birthDate != null) && (currentDate != null)) {
+            return Period.between(birthDate, currentDate).getYears();
+        } else {
+            return 0;
+        }
+    }
+
+    public static int calculateAge(Date birthDate) {
+        LocalDate currentDate = LocalDate.now();
+        return calculateAge(convertToLocalDateViaSqlDate(birthDate),currentDate);
+    }
+
+    public static String formatDate(LocalDate fecha, String format){
+        if(fecha == null || format == null) return null;
+        return fecha.format(DateTimeFormatter.ofPattern(format));
+    }
+    public static String formatDate(Date fecha, String format){
+        return formatDate(convertToLocalDateViaSqlDate(fecha), format);
+    }
+
     public static DBFile createFile(MultipartFile file) {
         // Normalize file name
         String fileName = StringUtils.cleanPath(file.getOriginalFilename());

curriculumsearch/src/main/webapp/jsp/convocatorias.jsp

@@ -2,6 +2,8 @@
 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
 <%@ page contentType="text/html;charset=UTF-8" language="java" %>
 <%@ taglib uri="http://kwonnam.pe.kr/jsp/template-inheritance" prefix="layout"%>
+<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
+
 <layout:extends name="layouts/base.jsp">
     <layout:put block="cssDeclaracion" type="APPEND"></layout:put>
     <layout:put block="contents" type="REPLACE">
@@ -44,8 +46,8 @@
                             <th scope="row">${sta.index+1}</th>
                             <td>${convocatoria.getCargo().getNombre()}</td>
                             <td>${convocatoria.getEstado().getDescripcion()}</td>
-                            <td>${convocatoria.getFechaInicio().toString().split(" ")[0]}</td>
-                            <td>${convocatoria.getFechaFin().toString().split(" ")[0]}</td>
+                            <td><fmt:formatDate value="${convocatoria.getFechaInicio()}" pattern="dd-MM-yyyy" /></td>
+                            <td><fmt:formatDate value="${convocatoria.getFechaFin()}" pattern="dd-MM-yyyy" /></td>
                             <td><a href="/postulantes?convId=${convocatoria.id}">Ver postulantes</a></td>
                             <td><button onclick=window.location.href="/convocatoria/${convocatoria.id}">Cerrar convocatoria</button></td>
                         </tr>

curriculumsearch/src/main/webapp/jsp/detallepostulante.jsp

@@ -143,6 +143,9 @@
                         </c:when>
                         
                       </c:choose>
+                      <div class="col">
+                        <a class="btn btn-link" target="__blank" href="/postulantes/${postulante.id}/pdf">Obtener pdf</a>
+                      </div>
                       
                     </div>
                   </div>

curriculumsearch/src/main/webapp/jsp/dp.jsp

+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
+<%@ taglib uri="http://kwonnam.pe.kr/jsp/template-inheritance" prefix="layout"%>
+<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
+
+
+<layout:extends name="layouts/base.jsp">
+    <layout:put block="contents" type="REPLACE">
+        <h2 style="text-align: center;">
+            DETALLE POSTULANTE        
+        </h2>
+        ${postulante.nombre} ${postulante.apellido}        
+    </layout:put>
+</layout:extends>
+