closes #2: PDF-Dokument wird nun bei einer Ausleihe automatisch erzeugt,

in einem tmp-Ordner erstellt und geöffnet.
Wenn das Programm beendet wird, wird der tmp-Ordner geleert.

.classpath

@@ -6,5 +6,6 @@
 	<classpathentry kind="lib" path="lib/mysql-connector-java-5.1.32-bin.jar"/>
 	<classpathentry kind="lib" path="lib/sqlite-jdbc-3.7.2.jar"/>
 	<classpathentry kind="lib" path="lib/swingx-all-1.6.4.jar"/>
+	<classpathentry kind="lib" path="lib/pdfbox-app-1.8.7.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

README.md

@@ -13,3 +13,6 @@ This software uses the Oracle MySQL Java Connector (http://dev.mysql.com/downloa
 ### Tango Desktop Project
 This software also uses icons provided by the Tango Desktop Project (http://tango.freedesktop.org/).
 License will follow!
+
+### Apache PDFBox
+This software uses the Apache PDFBox (https://pdfbox.apache.org/) package which is published under Apache License v2.0 (http://www.apache.org/licenses/LICENSE-2.0);

src/de/katho/kBorrow/Settings.java

@@ -108,4 +108,8 @@ public class Settings {
 			e.printStackTrace();
 		}		
 	}
+	
+	public String getSettingsDir(){
+		return filePath;
+	}
 }

src/de/katho/kBorrow/Util.java

@@ -1,7 +1,9 @@
 package de.katho.kBorrow;
+
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
+import java.util.Random;
 
 public class Util {
 	public static String getCurrentDate(){
@@ -10,4 +12,17 @@ public class Util {
 		
 		return dateFormat.format(date);
 	}
+	
+	public static String generateRandomString(int length) {
+		char[] chars = "abcdefghijklmnopqrstuvwxyz".toCharArray();
+		StringBuilder sb = new StringBuilder();
+		Random random = new Random();
+		
+		for (int i = 0; i < length; i++) {
+		    char c = chars[random.nextInt(chars.length)];
+		    sb.append(c);
+		}
+	
+		return sb.toString();
+	  }
 }

src/de/katho/kBorrow/controller/NewLendingController.java

@@ -1,12 +1,28 @@
 package de.katho.kBorrow.controller;
 
+import org.apache.pdfbox.exceptions.COSVisitorException;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.font.PDFont;
+import org.apache.pdfbox.pdmodel.font.PDType1Font;
+
+import java.awt.Desktop;
+import java.io.File;
+import java.io.IOException;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.HashMap;
 
+import de.katho.kBorrow.Settings;
+import de.katho.kBorrow.Util;
+import de.katho.kBorrow.data.KArticle;
 import de.katho.kBorrow.data.KLender;
+import de.katho.kBorrow.data.KLending;
+import de.katho.kBorrow.data.KUser;
 import de.katho.kBorrow.db.DbConnector;
 import de.katho.kBorrow.models.ArticleTableModel;
 import de.katho.kBorrow.models.FreeArticleTableModel;
@@ -21,14 +37,16 @@ public class NewLendingController {
 	private FreeArticleTableModel freeArticleModel;
 	private LendingTableModel lendingTableModel;
 	private ArticleTableModel articleTableModel;
+	private Settings settings;
 	
-	public NewLendingController(DbConnector pDbCon, HashMap<String, Object> pModels){
+	public NewLendingController(DbConnector pDbCon, HashMap<String, Object> pModels, final Settings pSettings){
 		dbCon = pDbCon;
 		userListModel = (UserListModel)pModels.get("userlistmodel");
 		lenderModel = (LenderModel)pModels.get("lendermodel");
 		freeArticleModel = (FreeArticleTableModel)pModels.get("freearticletablemodel");
 		articleTableModel = (ArticleTableModel)pModels.get("articletablemodel");
 		lendingTableModel = (LendingTableModel)pModels.get("lendingtablemodel");
+		settings = pSettings;
 	}
 	
 	/**
@@ -62,16 +80,114 @@ public class NewLendingController {
 			KLender lender = lenders.get(0);
 			int uId = userListModel.getIdByFullname(pUsername);
 			DateFormat dateFormat = new SimpleDateFormat("dd.MM.yyyy");
-			int result = dbCon.createNewLending(pArtId, uId, lender.getId(), pStartDate, dateFormat.format(pEstEndDate));
 			
-			if(result == 0){
+			int[] result = dbCon.createNewLending(pArtId, uId, lender.getId(), pStartDate, dateFormat.format(pEstEndDate));
+			
+			if(result[0] == 0){
 				freeArticleModel.updateModel();
 				articleTableModel.updateModel();
 				lendingTableModel.updateModel();
-				return result;
+				createPdfFile(result[1]);
+				
+				return result[0];
 			}
-			else return result;
+			else return result[0];
 		}
 		return 4;
 	}
+	
+	
+	private void createPdfFile(int pLendingId){
+		KLending lending = lendingTableModel.getLendingById(pLendingId);
+		KArticle article = articleTableModel.getArticleById(lending.getArticleId());
+		KUser user = userListModel.getUserById(lending.getUserId());
+		KLender lender = lenderModel.getLenderById(lending.getLenderId());		
+		
+		PDDocument doc = new PDDocument();
+		PDPage page = new PDPage(PDPage.PAGE_SIZE_A4);
+		PDRectangle rect = page.getMediaBox();
+		doc.addPage(page);
+		
+		PDFont fontNormal = PDType1Font.HELVETICA;
+		PDFont fontBold = PDType1Font.HELVETICA_BOLD;
+		
+		String[] text = {
+							"Artikel: ",
+							"Verliehen von: ",
+							"Ausgeliehen an: ",
+							"Start der Ausleihe: ",
+							"Voraussichtliche R<>ckgabe: "
+						};
+		String[] vars = {
+							article.getName(),
+							user.getName()+" "+user.getSurname(),
+							lender.getName()+" "+lender.getSurname()+" ("+lender.getStudentnumber()+")",
+							lending.getStartDate(),
+							lending.getExpectedEndDate()
+						};
+		try {
+			File file = createRandomFile();
+			
+			PDPageContentStream cos = new PDPageContentStream(doc, page);
+			
+			cos.beginText();
+			cos.moveTextPositionByAmount(100, rect.getHeight() - 100);
+			cos.setFont(fontBold, 16);
+			cos.drawString("Ausleihe #"+lending.getId());
+			cos.endText();
+			
+			int i = 0;
+			
+			while (i < text.length){
+				cos.beginText();
+				cos.moveTextPositionByAmount(100, rect.getHeight() - 25*(i+2) - 100 );
+				cos.setFont(fontBold, 12);
+				cos.drawString(text[i]);
+				cos.moveTextPositionByAmount(rect.getWidth() / 2 - 100, 0);
+				cos.setFont(fontNormal, 12);
+				cos.drawString(vars[i]);
+				cos.endText();
+				i++;
+			}
+			
+			i = i+2;
+			cos.setLineWidth(1);
+			cos.addLine(100, rect.getHeight() - 25*(i+2) - 100, 300, rect.getHeight() - 25*(i+2) - 100);
+			cos.closeAndStroke();
+			
+			i++;
+			
+			cos.beginText();
+			cos.moveTextPositionByAmount(100, rect.getHeight() - 25*(i+2) - 100);
+			cos.setFont(fontNormal, 12);
+			cos.drawString("Unterschrift "+lender.getName()+" "+lender.getSurname());
+			cos.endText();			
+		
+			cos.close();
+			doc.save(file);
+			doc.close();
+			
+			if(Desktop.isDesktopSupported()){
+				Desktop desktop = Desktop.getDesktop();
+				if(desktop.isSupported(Desktop.Action.OPEN)){
+					desktop.open(file);
+				}
+			}
+		} catch (IOException | COSVisitorException e) {
+			e.printStackTrace();
+		}
+	}
+	
+	private File createRandomFile() throws IOException{
+		File dir = new File(settings.getSettingsDir()+"/tmp");
+		File file = new File(settings.getSettingsDir()+"/tmp/"+Util.generateRandomString(8)+".pdf");
+		if(!dir.isDirectory()) dir.mkdir();
+		if(!file.isFile()) file.createNewFile();
+		else {
+			file.delete();
+			file.createNewFile();
+		}
+		
+		return file;
+	}
 }

src/de/katho/kBorrow/db/DbConnector.java

@@ -19,7 +19,7 @@ public interface DbConnector {
 	public int editArticle(int pId, String pName, String pDesc);
 	public ArrayList<KArticle> getFreeArticleList();
 	public ArrayList<KLender> getLenderList();
-	public int createNewLending(int pArtId, int pUId, int pLId, String pStartDate, String pEstEndDate);
+	public int[] createNewLending(int pArtId, int pUId, int pLId, String pStartDate, String pEstEndDate);
 	public int createNewLender(String pLName, String pLSurname, String pLSN);
 	public ArrayList<KLending> getActiveLendingList();
 	public int returnLending(int lendingId, int artId, String string);

src/de/katho/kBorrow/db/SqlConnector.java

@@ -75,10 +75,10 @@ public class SqlConnector implements DbConnector{
 	}
 
 	@Override
-	public int createNewLending(int pArtId, int pUId, int pLId,
+	public int[] createNewLending(int pArtId, int pUId, int pLId,
 			String pStartDate, String pEstEndDate) {
 		// TODO Auto-generated method stub
-		return 0;
+		return new int[2];
 	}
 
 	@Override

src/de/katho/kBorrow/db/SqliteConnector.java

@@ -430,25 +430,40 @@ public class SqliteConnector implements DbConnector {
 	}
 
 	/**
+	 * Erstellt eine neue Ausleihe.
 	 * 
-	 * @return	Status-Code:
-	 * 			0:		Erfolg
-	 * 			1:		SQL-Fehler
+	 * 
+	 * @return	R<>ckgabewert ist ein Array mit zwei Werten.
+	 * 
+	 * 			Index		0:	Enth<74>lt den R<>ckgabestatus:
+	 * 			- Status 	0:	Alles in Ordnung
+	 * 			- Status	1:	SQL-Fehler
+	 * 
+	 * 			Index 1: Enth<74>lt die ID der gerade erzeugten Tabellenzeile
 	 */
-	public int createNewLending(int pArtId, int pUId, int pLId, String pStartDate, String pEstEndDate) {
+	public int[] createNewLending(int pArtId, int pUId, int pLId, String pStartDate, String pEstEndDate) {
+		int[] result = new int[2];
+		
 		try{
 			Statement st = connection.createStatement();
 			String query = "INSERT INTO lending (article_id, user_id, lender_id, start_date, expected_end_date ) "
-					+ "VALUES ("+pArtId+", "+pUId+", "+pLId+", '"+pStartDate+"', '"+pEstEndDate+"');"
+							+ "VALUES ("+pArtId+", "+pUId+", "+pLId+", '"+pStartDate+"', '"+pEstEndDate+"');"
 							+ "UPDATE article SET is_free = 0 WHERE id = "+pArtId+";";
 			
 			st.executeUpdate(query);
 			
-			return 0;
+			query = "SELECT id FROM lending ORDER BY id DESC LIMIT 1;";
+			
+			ResultSet rs = st.executeQuery(query);
+			
+			result[1] = rs.getInt("id");
+			result[0] = 0;
+			
+			return result;
 		}
 		catch(SQLException e){
 			e.printStackTrace();
-			return 1;
+			return new int[]{1,0};
 		}
 	}
 

src/de/katho/kBorrow/gui/MainWindow.java

@@ -9,7 +9,9 @@ import org.jdesktop.swingx.JXErrorPane;
 import org.jdesktop.swingx.error.ErrorInfo;
 
 
+
 import java.awt.BorderLayout;
+import java.io.File;
 import java.io.IOException;
 import java.sql.SQLException;
 import java.util.HashMap;
@@ -53,6 +55,16 @@ public class MainWindow {
 		frame.setBounds(100, 100, 600, 500);
 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		
+		// Delete all files in tmp-dir
+		Runtime.getRuntime().addShutdownHook(new Thread(){
+			public void run(){
+				File dir = new File(set.getSettingsDir()+"/tmp/");
+				if(dir.isDirectory()){
+					for(File file : dir.listFiles()) file.delete();
+				}
+			}
+		});
+		
 		try {
 			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
 			
@@ -73,7 +85,7 @@ public class MainWindow {
 			
 			tabbedPane = new JTabbedPane(JTabbedPane.TOP);
 			frame.getContentPane().add(this.tabbedPane, BorderLayout.CENTER);
-			tabbedPane.addTab("Neue Ausleihe", new NewLendingPanel(this.dbCon, models));
+			tabbedPane.addTab("Neue Ausleihe", new NewLendingPanel(this.dbCon, models, set));
 			tabbedPane.addTab("Ausleihen verwalten", new ManageLendingsPanel(this.dbCon, models));
 			tabbedPane.addTab("Artikel verwalten", new ArticlePanel(this.dbCon, models));
 			tabbedPane.addTab("Benutzer verwalten", new UserPanel(this.dbCon, models));

src/de/katho/kBorrow/gui/NewLendingPanel.java

@@ -28,6 +28,7 @@ import javax.swing.border.TitledBorder;
 import org.jdesktop.swingx.JXDatePicker;
 import org.jdesktop.swingx.autocomplete.AutoCompleteDecorator;
 
+import de.katho.kBorrow.Settings;
 import de.katho.kBorrow.Util;
 import de.katho.kBorrow.controller.NewLendingController;
 import de.katho.kBorrow.converter.LenderNameConverter;
@@ -70,7 +71,7 @@ public class NewLendingPanel extends JPanel implements ActionListener, FocusList
 	 * @param dbCon 
 	 * @throws IOException 
 	 */
-	public NewLendingPanel(final DbConnector dbCon, HashMap<String, Object> pModel) throws IOException {
+	public NewLendingPanel(final DbConnector dbCon, HashMap<String, Object> pModel, final Settings pSettings) throws IOException {
 		setLayout(null);
 		articleId = -1;
 		
@@ -78,7 +79,7 @@ public class NewLendingPanel extends JPanel implements ActionListener, FocusList
 		freeArticleTableModel = (FreeArticleTableModel)pModel.get("freearticletablemodel");
 		userListModel = (UserListModel)pModel.get("userlistmodel");
 		lenderModel = (LenderModel)pModel.get("lendermodel");
-		newLendingController = new NewLendingController(dbCon, pModel);
+		newLendingController = new NewLendingController(dbCon, pModel, pSettings);
 		
 		JTable freeArticleTable = new JTable(freeArticleTableModel);
 		freeArticleTable.setRowHeight(30);

src/de/katho/kBorrow/models/UserListModel.java

@@ -72,6 +72,13 @@ public class UserListModel extends AbstractListModel<String> implements ComboBox
 		return -1;
 	}
 	
+	public KUser getUserById(int pId){
+		for (KUser elem : data){
+			if(elem.getId() == pId) return elem;
+		}
+		return null;
+	}
+	
 	
 }