From ac0b4e9704b3a774e090106ef5c864da142a9706 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcos=20Garcia=20Nu=C3=B1ez?= <mgarcianun@uoc.edu>
Date: Fri, 3 Jan 2020 20:32:47 +0100
Subject: [PATCH] =?UTF-8?q?A=C3=B1adido=20bot=C3=B3n=20para=20descargar=20?=
 =?UTF-8?q?imagenes=20de=20pruebas=20m=C3=A9dicas.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../docroot/medicaltest/MedicalTests.xhtml    |  6 +++-
 .../medicalTest/MedicalTestMBean.java         | 34 +++++++++++++++----
 2 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/1.sources/MyHealth/docroot/medicaltest/MedicalTests.xhtml b/1.sources/MyHealth/docroot/medicaltest/MedicalTests.xhtml
index 42514b7..4d7fad6 100644
--- a/1.sources/MyHealth/docroot/medicaltest/MedicalTests.xhtml
+++ b/1.sources/MyHealth/docroot/medicaltest/MedicalTests.xhtml
@@ -95,13 +95,17 @@
 										</div>
 										<div class="ui-g-2" />
 										<div class="ui-g-8" style="align-content: center; text-align: center;">
-											<h:graphicImage rendered="#{mt.selected.highresimage != null}" value="#{mt.selected.highresimage}" alt="Imagen de la prueba mécica" width="600" />
+											<h:graphicImage rendered="#{mt.selected.highresimage != null}" value="#{mt.selected.highresimage}" alt="Imagen de la prueba mécica" width="400" />
 											<h:outputText rendered="#{mt.selected.highresimage == null}" value="Esta prueba no tiene ninguna imagen asociada" style="font-weight: bold;" />
 										</div>
 										<div class="ui-g-2">
 											<p:commandButton rendered="#{mt.specialistDoctor and mt.selected.highresimage != null}" value="Eliminar" icon="pi pi-trash" action="#{mt.removeImage}" update="frmImage">
 												<p:confirm header="Confirme la eliminación" message="¿Está seguro de que desea eliminar la imagen?" icon="pi pi-exclamation-triangle" />
 											</p:commandButton>
+											<p />
+											<p:commandButton rendered="#{mt.selected.highresimage != null}" ajax="false" value="Descargar" icon="pi pi-download">
+												<p:fileDownload value="#{mt.imageDownload}" />
+											</p:commandButton>
 										</div>
 									</div>
 								</p:outputPanel>
diff --git a/1.sources/MyHealth/src/managedbean/medicalTest/MedicalTestMBean.java b/1.sources/MyHealth/src/managedbean/medicalTest/MedicalTestMBean.java
index 3743ad4..892f226 100644
--- a/1.sources/MyHealth/src/managedbean/medicalTest/MedicalTestMBean.java
+++ b/1.sources/MyHealth/src/managedbean/medicalTest/MedicalTestMBean.java
@@ -1,5 +1,6 @@
 package managedbean.medicalTest;
 
+import java.io.ByteArrayInputStream;
 import java.io.Serializable;
 import java.time.LocalDate;
 import java.time.LocalTime;
@@ -15,6 +16,8 @@ import javax.inject.Named;
 
 import org.primefaces.event.FileUploadEvent;
 import org.primefaces.event.SelectEvent;
+import org.primefaces.model.DefaultStreamedContent;
+import org.primefaces.model.StreamedContent;
 import org.primefaces.model.UploadedFile;
 
 import TO.MedicalTestTO;
@@ -86,14 +89,14 @@ public class MedicalTestMBean extends ManagedBeanBase implements Serializable {
 	}
 
 	public void uploadDataListener(FileUploadEvent event) {
-	    UploadedFile uploadedFile = event.getFile();
-	    String fileName = uploadedFile.getFileName();
-	    String contentType = uploadedFile.getContentType();
-	    byte[] contents = uploadedFile.getContents();
+		UploadedFile uploadedFile = event.getFile();
+		// String fileName = uploadedFile.getFileName();
+		String contentType = uploadedFile.getContentType();
+		byte[] contents = uploadedFile.getContents();
 
 		if (contents != null && contents.length > 0) {
 			this.selected.setHighresimage(String.format("data:%s;base64,%s", contentType, Base64.getEncoder().encodeToString(contents)));
-			
+
 			this.getRemoteManagerMedicalTest().addImage(this.selected.getId(), this.selected.getHighresimage());
 
 			this.addFacesMessage(FacesMessage.SEVERITY_INFO, "Imagen guardada", "La imagen se ha guardado correctamente.");
@@ -101,7 +104,24 @@ public class MedicalTestMBean extends ManagedBeanBase implements Serializable {
 			this.addFacesMessage(FacesMessage.SEVERITY_ERROR, "Imagen vacía", "La imagen que itenta subir está vacía o no puede procesarse.");
 		}
 	}
-	
+
+	public StreamedContent getImageDownload() {
+		DefaultStreamedContent dsc = null;
+		try {
+			String[] data = this.selected.getHighresimage().split(",");
+			String contentType = data[0];
+
+			// Obtenemos la extension del contentType
+			String extension = contentType.split(";")[0].split("/")[1];
+			String base64Image = data[1];
+
+			dsc = new DefaultStreamedContent(new ByteArrayInputStream(javax.xml.bind.DatatypeConverter.parseBase64Binary(base64Image)), contentType, "Imagen.".concat(extension));
+		} catch (Exception e) {
+			this.manageException(e);
+		}
+		return dsc;
+	}
+
 	public UploadedFile getImageUpload() {
 		return imageUpload;
 	}
@@ -113,7 +133,7 @@ public class MedicalTestMBean extends ManagedBeanBase implements Serializable {
 	public void removeImage() {
 		this.selected.setHighresimage(null);
 		getRemoteManagerMedicalTest().removeImage(this.selected.getId());
-		//this.loadMedicalTests();
+		// this.loadMedicalTests();
 		this.addFacesMessage(FacesMessage.SEVERITY_INFO, "Imagen eliminada", "La imagen se ha eliminado correctamente.");
 	}